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United States Presidential Election, 2008

2008-08-30T01:33:17Z

Joldy0: Obama no longer presumptive

[[Image:Presidential election map.gif|right|thumb|350px|Battleground states]] {{move|United States presidential election, 2008}}

The '''2008 United States Presidential Election''' is scheduled for Tuesday, November 4, 2008.<ref>http://www.boston.com/news/politics/2008/calendar/</ref> The primary season for both the [[Republican Party]] and the [[Democratic Party]] officially began on January 3, 2008 with the [[Iowa Caucus]]es and ended on June 3, 2008.<ref>http://www.boston.com/news/politics/2008/calendar/</ref> The 2008 election cycle has seen a major shift to the primary election calendar, frontloading many primaries into early February.<ref>http://www.miamiherald.com/515/story/43160.html</ref> [[Barack Obama|Senator Barack Obama]] of [[Illinois]] is the [[Democratic Party]] nominee, with Senator [[Joe Biden]] of [[Delaware]] being his Vice Presidential running mate. They are the first Democratic Presidential ticket in a 100 years with no executive experience or military experience. Senator [[John McCain]] of [[Arizona]] is expected to win the Republican nomination. His Vice Presidential nominee is [[Alaska]] Governor [[Sarah Palin]].
==First election without incumbents since 1928==
If eligible to do so, the President of the United States often runs for reelection. If the President does not run, the [[Vice President of the United States]] will often run to replace the President after he leaves office. 2008 may mark the first time since the 1928 election in which there is neither an incumbent President nor an incumbent Vice President running for his party's presidential nomination and thus not running in the Presidential election. In the [[United States presidential election of 1952]], the race was between Republican candidate [[Dwight D. Eisenhower]] and Democratic candidate [[Adlai Stevenson]]. Vice President [[Alben Barkley]] sought but failed to win the Democratic nomination. Current Vice President [[Dick Cheney]] has repeatedly stated he will not run for President. "I will say just as hard as I possibly know how to say... If nominated, I will not run; if elected, I will not serve," Cheney said on ''[[Fox News]] Sunday''.

==Differences between 2008 and other elections==
In 2008, [[CNN]]-[[YouTube]] held the first debate in which the questions asked of the nominees in each party came primarily from YouTube viewer submitted videos. The debates received high ratings, however, CNN was criticized for not picking questions that were 'tough' or pertinent enough. One such example was during the Democratic Debate, when CNN chose to ask a question from a snow man, talking about [[global warming]]. During the Republican debate, some claimed that many of the questions were from Democratic supporters just meant to embarrass the Republican candidates. For example, a question over whether or not homosexuals should serve in the U.S. military was asked by retired general and gay activist Keith Kerr, an adviser to [[Hillary Clinton]]'s campaign.

The internet has also played a major role in the election, with then-Republican presidential candidate [[Ron Paul]] and Democratic candidate Barack Obama being very active on the internet.

== Uncommitted Electorate ==

As of July 30th, 2008 14% of respondents are undecided, almost twice as high as the 8% at a similar time period in 2004.<ref>[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/in_white_house_race_twice_as_many_voters_uncommitted_compared_to_four_years_ago Uncommitted numbers]</ref>

==Opinion polling==
{| class="wikitable"
|-
! Polling Outfit
! Date
! Sample*
! Obama (D)
! McCain (R)
|-
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/daily_presidential_tracking_poll Rasmussen Tracking]
| 08/26 - 08/28
| 3000 LV
| '''46'''
| 43
|-
|-
|[http://www.gallup.com/poll/109933/Gallup-Daily-Obama-Stretches-Lead-Points.aspx Gallup Tracking]
| 08/26 - 08/28
| 2727 RV
| '''49'''
| 41
|-
|-
|[http://thepage.time.com/2008/08/24/first-post-biden-poll-mccain-obama-in-dead-heat/ CNN/Opinion Research]
| 08/23 - 08/24
| 909 RV
| 47
| 47
|-
|-
| [http://www.diageohotlinepoll.com/08_Aug_Data.pdf Hotline/FD]
| 08/18 - 08/24
| 1022 RV
| '''44'''
| 40
|-
|-
| [http://www.usatoday.com/news/politics/election2008/2008-08-24-campaignpoll_N.htm USA Today/Gallup]
| 08/21 - 08/23
| 765 LV
| '''48'''
| 45
|-
|}

*RV refers to registered voters, LV refers to likely voters.

Most polling that has been done fails to include all the candidates who will actually be on the ballot in November. A Rasmussen poll on May 18, reported on a four-way race between Barack Obama, John McCain, Ralph Nader and Bob Barr. The poll, which was conducted before Barr became the Libertarian nominee and made a number of high-profile talk show appearances, found that Barr would finish in third place with 6% of the vote, and Nader with 4%.<ref>http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/will_third_party_candidates_tip_the_presidential_race</ref> Another poll conducted around that time showed Barr picking up 8% of the vote in [[Georgia]], seriously hurting McCain's chances of winning that state.<ref>http://www.southernpoliticalreport.com/storylink_520_404.aspx</ref> It should be noted that in the actual elections, third party candidates such as Barr and Nader generally have much lower percentage of votes cast for them than they poll beforehand. Also, when possible, polling is reported without counting 'leaners'. Leaners so far have been favoring McCain.

Due to the nature of the presidential election, relying on state-by-state electoral votes as opposed to the nationwide popular vote, nationwide polls may be less predictive of the election results. An alternative approach is to take aggregate results of state-by-state polling in order to create an electoral map. So far most polling sites doing this have found the election favoring Obama, much as the general polling has shown, although generally dependent on how leaning states vote come election day.<ref>http://www.pollster.com/</ref><ref>[http://www.politico.com/convention/swingstate.html Politico's 2008 Swing State Map]</ref>

== McCain vs. Obama ==
[[Image:Casmier.jpg|left|thumb|180px|'''John McCain (R)''']][[Image:obama.jpg|thumb|left|'''Barack Obama (D)''']]
McCain had the early edge, wrapping up the Republican nomination before Obama was known to be the choice of the Democrats, but this was one of the few advantages he has had. Both Hillary Clinton and Barack Obama raised far more money than McCain and the Democratic primary saw a surge of new voters coming out leading to a large increase in the rolls of Democrats. From the historical position of a generally equal number of Republicans and Democrats, the numbers have now tilted 41% Democrat to only 32% Republican. From the time that Obama was declared the nominee, opinion polling showed him with a modest advantage over McCain in terms of who the voters would choose to be their next President.

Obama's strategy was to tie McCain to George Bush, a very unpopular President, even though McCain was not a part of the Bush administration and often clashed with Bush during his time as senator. McCain, for his part, had to walk a fine line with accepting praise from the President to woo conservatives, while at the same time keeping enough distance so as to not alienate moderates. When possible, McCain went after Obama's lack of foreign policy experience.

On paper, the nomination would seem to heavily favor the Democrats. Overall, Democrat candidates have a +10% advantage over Republicans in a 'generic' election. The current unpopular President is a Republican, and the economy is treading water. Also, based on statistical percentages of articles on each candidate, Obama was being focused on with press coverage far more than McCain. When McCain chastised Obama for his lack of foreign policy experience and that he hadn't been to Iraq or Afghanistan in years, Obama's campaign set up for him to take a trip to both countries. While this is expected in politics, the decision of every major network to send a team of reporters to follow him was unprecedented. Obama spoke to 200,000 people in Berlin in a highly covered speech. McCain spoke to 50,000 in Buffalo shortly thereafter and barely got a whisper. Obama's numbers started to rise, but a good deal of the populace was noticing the disparity as 48% of those polled felt the press was trying to help Obama win.

Obama seemed pleased to coast on his advantages, but McCain realized he needed to shake things up. He scored by pushing offshore drilling for oil during a time when oil prices were climbing almost daily. Obama rejected the idea, but the poll numbers started to show a greater percentage of Americans warming to the concept<ref>[http://www.rasmussenreports.com/public_content/politics/general_politics/61_say_congress_should_vote_on_offshore_drilling_right_now Offshore Drilling poll]</ref> and McCain's numbers started to improve. Obama announced he would accept some measure of offshore drilling, and McCain's momentum was haltered and his gains retreated by a couple of points. McCain started an ad campaign that acknowledged Obama's celebrity status, but asking what it meant. A few days later at the start of August he called out Obama for 'playing the race card' when Obama made a reference to McCain and Bush trying to scare people because he (Obama) doesn't look like other Presidents on dollar bills. The Democrats fired back, but quickly let the issue drop when poll numbers showed that most voters did consider Obama's statement to be racist.<ref>http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/only_22_say_mccain_ad_racist_but_over_half_53_see_obama_dollar_bill_comment_that_way</ref>. The bounce for Obama after the Berlin speech shrank back to pre-trip levels. While Obama continued to enjoy a slight lead in the polls, McCain continued to keep the race close without either candidate breaking away.

In mid-August both candidates came together at the invitation of Pastor [[Rick Warren]] where each was asked a series of the same questions dealing both with political and personal views. While not a debate, it was the first televised forum where both candidates had a chance to express themselves and their positions. Obama hoped to appeal to Christian conservatives by expressing a religious side while McCain hoped to solidify the conservative base by sharing his own conservative and religious credentials. The difference in style between the two was evident as Obama spent more time explaining and expounding on his positions while McCain was more straight-forward and received more laughs with his candid speaking style. The polling numbers continued as they had been.

There was a bounce at the start of the Democratic convention, but not what was expected as McCain suddenly drew even in the race. The friction between Hillary Clinton and Obama as well as the perceived slight of Hillary when Biden was chosen as the Vice Presidential candidate hurt Obama at a time when his approval was expected to climb. McCain then made a mistake by airing an ad of Hillary Clinton that 'supported' him. Clinton was set to speak at the convention and it was no secret that there was bad blood between her and Obama and it was widely believed that her support for Obama would be lukewarm at best. Instead, apparently galvanized by McCain's hubris before her speech, she came out strongly for Obama and rallied those who supported her. Obama's pre-convention edge returned.

== State by State Breakdown ==
The United States had become so regionally polarized that even though the 2004 presidential election was close nationwide, only nine states had outcomes having less than 4% margin between the candidates:

State, margin of victory, party that won the state in 2004

#Wisconsin, 0.38% (Dem)
#Iowa, 0.67% (Repub)
#New Mexico, 0.79% (Repub)
#New Hampshire, 1.37% (Dem)
#Ohio, 2.11% (Repub)
#Pennsylvania, 2.50% (Dem)
#Nevada, 2.59% (Repub)
#Michigan, 3.42% (Dem)
#Minnesota, 3.48% (Dem)

It is assumed that the 2008 election will be similar where close battles in a few states could determine the outcome. Individual state polling numbers for the 2008 election so far:

* Red = McCain leading
* Blue = Obama leading

{| class="wikitable"
|-
! State
! Obama (D)
! McCain (R)
! Source
! Updated
|- style="background:white; color:red"
|Alabama
|37%
|55%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/alabama/election_2008_alabama_presidential_election Rasmussen]
|7/31/08
|- style="background:white; color:red"
|Alaska
|40%
|44%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/alaska/election_2008_alaska_presidential_election Rasmussen]
| 7/31/08
|- style="background:white; color:red"
|Arkansas
|37%
|47%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/arkansas/election_2008_arkansas_presidential_election Rasmussen]
|7/17/08
|- style="background:white; color:red"
|Arizona
|40%
|52%
|[http://www.publicpolicypolling.com/pdf/PPP_Release_Arizona_804.pdf PPP]
|7/31/08
|- style="background:white; color:blue"
|California
|51%
|37%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/california/election_2008_california_presidential_election Rasmussen]
|8/20/08
|- style="background:white; color:red"
|Colorado
|46%
|47%
|[http://www.time.com/time/2008/poll_main.pdf CNN/Time]
|8/26/08
|- style="background:white; color:blue"
|Connecticut
|52%
|35%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/connecticut/election_2008_connecticut_presidential_election Rasmussen]
|6/30/08
|- style="background:white; color:blue"
|Delaware
|50%
|41%
|[http://www.usaelectionpolls.com/2008/delaware.html SurveyUSA]
|3/06/08
|- style="background:white; color:blue"
|Florida
|45%
|44%
|[http://www.wesh.com/news/17312592/detail.html Mason-Dixon]
|8/26/08
|- style="background:white; color:red"
|Georgia
|43%
|50%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/georgia/election_2008_georgia_presidential_election Rasmussen]
|8/14/08
|- style="background:white; color:blue"
|Hawaii
|61%
|31%
|[http://www.usaelectionpolls.com/2008/hawaii.html SurveyUSA]
|3/06/08
|- style="background:white; color:red"
|Idaho
|37%
|53%
|[http://www.usaelectionpolls.com/2008/idaho.html DailyKos.com]
|7/30/08
|- style="background:white; color:blue"
|Illinois
|53%
|38%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/illinois/election_2008_illinois_presidential_election Rasmussen]
|8/14/08
|- style="background:white; color:red"
|Indiana
|42%
|46%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/indiana/election_2008_indiana_presidential_election Rasmussen]
|8/19/08
|- style="background:white; color:blue"
|Iowa
|50%
|43%
|[http://news-releases.uiowa.edu/2008/august/081908hawkeye_poll.html University of Iowa]
|8/13/08
|- style="background:white; color:red"
|Kansas
|37%
|52%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/kansas/election_2008_kansas_presidential_election Rasmuseen]
|8/11/08
|- style="background:white; color:red"
|Kentucky
|39%
|49%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/kentucky/election_2008_kentucky_presidential_election Rasmussen]
|7/29/08
|- style="background:white; color:red"
|Louisiana
|34%
|54%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/maine/election_2008_maine_presidential_election Rasmussen]
|8/12/08
|- style="background:white; color:blue"
|Maine
|49%
|36%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/maine/election_2008_maine_presidential_election Rasmussen]
|8/12/08
|- style="background:white; color:blue"
|Maryland
|53%
|40%
|[http://www.usaelectionpolls.com/2008/maryland.html SurveyUSA]
|3/06/08
|- style="background:white; color:blue"
|Massachusetts
|51%
|36%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/massachusetts/election_2008_massachusetts_presidential_election Rasmussen]
|8/5/08
|- style="background:white; color:blue"
|Michigan
|46%
|39%
|[http://www.freep.com/apps/pbcs.dll/article?AID=/20080821/NEWS15/308210001/1215 Detroit Free Press]
|8/21/08
|- style="background:white; color:blue"
|Minnesota
|48%
|38%
|[http://minnesota.publicradio.org/display/web/2008/08/20/prezpoll/ MPR/Humphrey Institute]
|8/17/08
|- style="background:white; color:red"
|Mississippi
|41%
|52%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/mississippi/election_2008_mississippi_presidential_election Rasmussen]
|7/28/08
|- style="background:white; color:red"
|Missouri
|41%
|48%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/missouri/election_2008_missouri_presidential_election Rasmussen]
|8/7/08
|- style="background:white; color:red"
|Montana
|44%
|45%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/montana/election_2008_montana_presidential_election Rasmussen]
|7/29/08
|- style="background:white; color:red"
|Nebraska
|32%
|50%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/nevada/election_2008_nevada_presidential_election Rasmussen]
|8/11/08
|- style="background:white; color:blue"
|Nevada
|49%
|44%
|[http://www.time.com/time/2008/poll_main.pdf CNN/Time]
|8/26/08
|- style="background:white; color:blue"
|New Hampshire
|43%
|42%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/new_hampshire/election_2008_new_hampshire_presidential_election Rasmussen]
|8/19/08
|- style="background:white; color:blue"
|New Jersey
|48%
|40%
|[http://beta.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/new_jersey/election_2008_new_jersey_presidential_election Rasmussen]
|8/04/08
|- style="background:white; color:blue"
|New Mexico
|53%
|40%
|[http://www.time.com/time/2008/poll_main.pdf CNN/Time]
|8/26/08
|- style="background:white; color:blue"
|New York
|52%
|32%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/north_carolina/election_2008_north_carolina_presidential_election Rasmussen]
|8/13/08
|- style="background:white; color:red"
|North Carolina
|42%
|45%
|[http://www.publicpolicypolling.com/pdf/PPP_Release_NC_826.pdf PPP]
|8/23/08
|- style="background:white; color:black"
|North Dakota
|43%
|43%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/north_dakota/election_2008_north_dakota_presidential_election Rasmussen]
|8/18/08
|- style="background:white; color:blue"
|Ohio
|44%
|43%
|[http://www.quinnipiac.edu/x2882.xml?ReleaseID=1210/ohio/election_2008_ohio_presidential_election Quinnipiac]
|8/24/08
|- style="background:white; color:red"
|Oklahoma
|38%
|52%
|[http://www.usaelectionpolls.com/2008/oklahoma.html SurveyUSA]
|6/13/08
|- style="background:white; color:blue"
|Oregon
|47%
|37%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/oregon/election_2008_oregon_presidential_election Rasmussen]
|8/7/08
|- style="background:white; color:blue"
|Pennsylvania
|48%
|43%
|[http://www.time.com/time/2008/poll_main.pdf CNN/Time]
|8/26/08
|- style="background:white; color:blue"
|Rhode Island
|55%
|31%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/rhode_island/election_2008_rhode_island_presidential_election Rasmussen]
|7/04/08
|- style="background:white; color:red"
|South Carolina
|39%
|48%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/south_carolina/election_2008_south_carolina_presidential_election Rasmussen]
|6/07/08
|- style="background:white; color:red"
|South Dakota
|40%
|44%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/south_dakota/election_2008_south_dakota_presidential_election2 Rasmussen]
|7/09/08
|- style="background:white; color:red"
|Tennessee
|36%
|51%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/tennessee/election_2008_tennessee_presidential_election Rasmussen]
|6/24/08
|- style="background:white; color:red"
|Texas
|41%
|50%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/texas/election_2008_texas_presidential_election Rasmussen]
|7/30/08
|- style="background:white; color:red"
|Utah
|33%
|52%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/utah/election_2008_utah_presidential_election Rasmussen]
|6/22/08
|- style="background:white; color:blue"
|Vermont
|63%
|29%
|[http://www.usaelectionpolls.com/2008/vermont.html SurveyUSA]
|3/06/08
|- style="background:white; color:blue"
|Virginia
|47%
|45%
|[http://publicpolicypolling.blogspot.com/2008/08/virginia-president-and-senate.html PPP]
|8/22/08
|- style="background:white; color:blue"
|Washington
|48%
|37%
|[http://strategicvision.biz/political/wa_poll_083008.htm Strategic Vision]
|7/27/08
|- style="background:white; color:red"
|West Virginia
|38%
|45%
|[http://www.rasmussenreports.com/public_content/politics/election_20082/2008_presidential_election/west_virginia/election_2008_west_virginia_presidential_election Rasmussen]
|6/05/08
|- style="background:white; color:blue"
|Wisconsin
|47%
|42%
|[http://www.strategicvision.biz/index.html Strategic Vision]
|8/10/08
|- style="background:white; color:red"
|Wyoming
|40%
|53%
|[http://www.usaelectionpolls.com/2008/wyoming.html Research2000]
|5/29/08
|}

== Analysis of States by Region ==
Because of the [[electoral college]] system in the United States, it is important to analyze the presidential election by each state. These states are grouped into regions.

=== New England ===
[[Barack Obama]] is almost certain to win almost every state in this region, which tend to be very [[liberal]]. The only exception is in New Hampshire, where [[John McCain]] is well liked and George Bush won in 2000. This state is expected to be competitive. On the other hand, with only four electoral votes, the impact on the election will not be as great as some other battleground states.

=== Mid-Atlantic ===
[[New York]], [[Delaware]], and [[Maryland]] are solidly Democrat and will vote for Obama this election. [[New Jersey]] is less so, but still has Democratic leanings, and will probably go for Obama. [[Pennsylvania]] is a very important swing state for both candidates, as it has 21 electoral votes, fifth most in the nation, and has both liberal and conservative elements. In recent years, the state has moved toward becoming Democrat. However, it is not yet at the point that is safely in the Democratic camp, and will still be focused on heavily by both candidates during this election cycle. McCain still has a very good chance because Obama was unable to connect with the working-class citizens of Pennsylvania during the Democratic primary.

=== South-Atlantic ===
[[Washington, D.C.]] is overwhelmingly liberal and will vote for Obama; however, with three electoral votes its significance is limited. Although [[Virginia]] has usually been Republican territory in Presidential elections, this year it has become a competitive state. Democrats will work on increasing the voter turnout in the northern part of the state, with a high population of D.C. transplants. McCain's strength is in the southern regions and among the military. In the Carolinas, which usually votes Republican, McCain is seen as having the edge, but Obama may be competitive in these states if he mobilizes the African-American population. [[Georgia]] is a state where a third-party candidate [[Bob Barr]] could make a difference. While most voters favor McCain, he could lose enough votes to Barr to lose the state, especially if there is a large black turnout. [[Florida]] is a very close swing state, most famously known for its role in [[Election 2000]]. An important constituency in this state is the [[Jewish]] population, who are continuing to support Obama over McCain. Cuban-Americans, who are most upset with Obama's statements that he would meet with Fidel Castro, back McCain.

=== Deep South ===
John McCain will do well in the deep south. This includes the states of [[Texas]], [[Alabama]], [[Mississippi]], [[Louisiana]], [[Oklahoma]], [[Arkansas]], [[Tennessee]], [[Kentucky]] and [[West Virginia]]. This area is generally [[conservative]], and consistently vote Republican in Presidential elections. Although Obama believes in a fifty-state strategy, it is unlikely that such a strategy will be helpful in getting out the vote in these states apart from the black population.

===Swing States (Great Lakes Region)===
Strategists believe that the Republican presidential nominee must win Wisconsin or Minnesota, and hold Iowa but that the outcome in New Mexico, which has only 5 electoral votes, is irrelevant. Minnesota's margin of victory for the Democrats in 2004 probably places it out of reach for Republicans in 2008. This is confirmed by recent polling. However, due to the location of the Republican Convention in Minnesota, and if Governor Pawlenty is chosen as McCain's vice presidential pick, the state, with ten electoral votes, can come back into play.

===Other Important Swing States===
Moreover, it is very important for republicans to hold Ohio and Florida. Fortunately, both states have tended to lean republican in the last two presidential elections. Although Florida was disputed in election 2000, it went to Bush undeniably in 2004. Virginia will also be heavily contested this year.

== General Strategy ==

McCain's team wants to convince the electorate of the long-term leadership and experience that John McCain has shown in two decades of government service while emphasizing the relative untested nature of Barak Obama.

Obama's team wants to convince the electorate that Obama is the candidate of fresh ideas while downplaying his relative inexperience compared to the more seasoned McCain. When possible, McCain is lumped together with George Bush, an unpopular President.

===Republican Strategy===
With more limited funding than his Democratic rival, McCain favors open town hall meetings to attract the greatest number of people. He is focusing his advertising on swing states. He has asked for open debates with Obama of the Lincoln-Douglas variety where candidates can talk directly to each other, but this was not accepted by the Democratic camp which prefers the current structured format.

McCain is pushing the idea that he is a proven leader who served his country and as President can be counted on to keep America safe from outside threats. His strongest supporters are the elderly - the group that most wants stability.

===Democratic Strategy===
Democrats are confident that the low popularity of [[President]] [[George W. Bush]] and particularly [[Operation Iraqi Freedom]], which John McCain supports, puts them in a highly favorable position for 2008. They have been cautious in the Iraq arena realizing that 'The Surge' worked and they were on the wrong end of that issue. Focus is being put on a timeline for troops coming home, a position that most of the American population favors.

Democats believe it is their race to lose, but also realize they had a good chance to win the last two Presidential elections and came up short each time. General wisdom also states that a poor economy favors Obama, so they will try to point a dire picture in this area. As in past elections, differences between those who have obtained a high income level and those who have not will be emphasized.

Favored by the young, Democrats will try hard to encourage and get out the young vote, a task that has proven more difficult than expected in the last two election cycles.

As an extension of the DNC's strategy in the 2006 elections, led by [[Howard Dean]], Barack Obama has been working towards a "50-state strategy." The campaign is working to place campaign offices throughout the country with a focus on voter registration. The increase in the rolls of Democratic voters from the primary battle between Hillary Clinton and Obama played out well for the Democrats and puts pressure on Senator McCain even in typically red states, and more specifically, "Lean Republican" states, to use the Cook Political Report's term. In addition, with a fundraising advantage, Obama is airing ads in those tight states forcing McCain to make decisions about whether to use funds to match ads and campaign efforts in those states or rely on historical results that those states will support him and focus funds in traditional toss-up states instead.

==Conventions==

===Democratic National Convention===
[[Image:democraticpartyusalogo.png|right|200px]] The 2008 Democratic National Convention will be held in [[Denver]], [[Colorado]], August 25 to August 27 at Pepsi Center. There they will select Senator Obama and his running mate to be the party nominee's. Barack Obama will accept the party's nomination in front of a crowd of more than 75,000 in a free, open event to be held at INVESCO Field at Mile High, in a platform resemblant to a Greek temple. House Speaker [[Nancy Pelosi]] is the Permanent Chair of the Convention.

The convention had a rocky start as friction between supporters of Obama and the Clintons was not resolved. Instead of Obama getting a bump in the polls, his support actually declined. The Democrats also seemed to be at odds on finding a unifying strategy for how hard to attack John McCain and how to present it. As Democratic pundit James Carville said in an interview on [[CNN]], "If this party has a message, it's done a <heck> of a job hiding it tonight, I promise you that."<ref>http://news.yahoo.com/story//ap/20080826/ap_on_el_pr/cvn_convention_rdp</ref>

A bleak convention was turned around by the Clintons. Infighting between Obama and Hillary continued through the day of her speech, but a comprise was reached, and, beyond expectations, she gave a rousing speech for Obama - possibly as an angry response to McCain's latest ad that showed her 'supporting' him. Bill Clinton the next night also praised Obama, something that he failed to effectively do in 2000 for Al Gore when he centered on his accomplishments and gave little more than lip service to Gore with statements amounting to 'and Al Gore was there too'. The convention, possibly remembering that, gave him the topic he was to speak on instead of choosing his own. Clinton was angered, but it worked. He came through. By the time Obama spoke on the last night, the theme that was missing at first was clear, and Obama mixed a message of attacking McCain with the need for change and even outlining some expensive programs that would appeal to the target populace who has been lukewarm to him. From a political point of view, the convention did what it was supposed to.

===Convention Schedule===

'''Monday 8/25 (Theme: One Nation):'''

* Former President [[Jimmy Carter]]
* [[Speaker of the House]] [[Nancy Pelosi]], D-[[California]]
* Congressman [[Jesse Jackson, Jr.]], D-[[Illinois]]
* Mayor John Hickenlooper, D-[[Denver]]
* Senator [[Amy Klobuchar]], D-[[Minnesota]]
* Mayor Manny Diaz, D-[[Miami]]
* Illinois state leaders Alexi Giannoulis, Dan Hynes, Lisa Madigan
* Tom Balanoff from Illinois SEIU
* [[National Education Association]] (NEA) President Reg Weaver
* AFT President Randi Weingarten
* [[NARAL Pro-Choice America]] President Nancy Keenan
* Senator [[Claire McCaskill]], D-Missouri
* Former State Representative Lee Hamilton, D-[[Indiana]]
* Chicago City Clerk Miguel del Valle
* Maya Soetoro-Ng - Barack Obama's half-sister
* Jerry Kellman - "Mentor and long-time friend of Barack Obama"

'''Tuesday 8/26 (Theme: Renewing America's Promise):'''

* Senator [[Patrick Leahy]], D-[[Vermont]]
* Governor [[Joe Manchin]], D-[[West Virginia]], Chair of the Democratic Governors’ Association
* Governor [[Chet Culver]], D-[[Iowa]]
* [[California]] State Controller John Chiang
* Change to Win’s Anna Burger
* [[AFL-CIO]] President John Sweeney
* [[Planned Parenthood of America]] President Cecile Richards.
* Pay Equity pioneer Lilly Ledbetter
* Governor [[Brian Schweitzer]], D-[[Montana]]
* Governor [[Deval Patrick]], D-[[Massachusetts]]
* Governor [[Kathleen Sebelius]], D-[[Kansas]]
* Governor [[Janet Napolitano]], D-[[Arizona]]
* Governor [[Jim Doyle]], D-[[Wisconsin]]
* Governor [[Ed Rendell]], D-[[Pennsylvania]]
* Governor [[Ted Strickland]], D-[[Ohio]]
* Governor [[David Paterson]], D-[[New York]]
* Senator [[Bob Casey, Jr.]], D-[[Pennsylvania]]
* Former Secretary of Energy and Transportation Federico Peña
* House Majority Leader [[Steny Hoyer]], D-[[Maryland]]
* House Democratic Caucus Chair [[Rahm Emanuel]], D-[[Illinois]]
* Representative [[Xavier Becerra]] (D-California), Assistant to the Speaker of the House;
* Democratic Congressional Campaign Committee (DCCC) Chair [[Chris Van Hollen]]
* Representatives [[Nydia Velazquez]] (D-[[New York]])
* Linda Sanchez (D-CA)
* Tammy Baldwin (D-WI)
* Eleanor Holmes Norton (D-DC)
* Mike Honda (D-CA)
* Senator and former Presidential candidate [[Hillary Clinton]] (D-NY)
* Former Governor [[Mark Warner]] (D-VA)--Keynote Speaker

'''Wednesday 8/27 (Theme: Securing America's Future): '''

* Former President [[Bill Clinton]]
* Governor [[Bill Richardson]], D-[[New Mexico]]
* Senator [[John Kerry]], D-[[Massachusetts]]
* Former Senate Minority Leader [[Tom Daschle]], D-[[South Dakota]]
* Senator [[Jack Reed]], D-[[Rhode Island]]
* Mayor [[Richard Daley]], D-[[Chicago]]
* Senator [[Evan Bayh]], D-[[Indiana]]
* Senator [[Joe Biden]], D-[[Delaware]]
* Senator [[Jay Rockefeller]], D-[[West Virginia]]
* Senate Majority Leader [[Harry Reid]], D-[[Nevada]]
* Senator [[Ken Salazar]], D-[[Colorado]]
* House Majority Whip [[James E. Clyburn]], D-[[South Carolina]]
* Congressman [[Robert Wexler]] (D-[[Florida]])

'''Thursday 8/28 (Theme: Change You Can Believe In):'''

* [[Colorado]] [[Governor]] [[Bill Ritter]]
* Former Vice President [[Al Gore]]
* Presidential nominee [[Barack Obama]]

===Republican National Convention===
[[Image:Cjjfdjfty.png|200px|right|"Republican Party Elephant" logo]] The 2008 Republican National Convention will be held in [[Saint Paul]], [[Minnesota]] from September 1 ([[Labor Day]]) until September 4. The presumptive nominee will be Senator McCain. The location has political significance in that [[Minnesota]] will likely be a close state during the general election, as will it's neighboring states [[Wisconsin]] and [[Iowa]].

===Convention Schedule===

'''Monday 9/1 (Theme: Service):'''

*[[President]] [[George W. Bush]]

*[[Vice President]] [[Dick Cheney]]

*First Lady [[Laura Bush]]

*Governor [[Tim Pawlenty]], R-[[Minnesota]]

*Governor [[Rick Perry]], R-[[Texas]]

*Governor [[Arnold Schwarzenegger]], R-[[California]]

*Senate Minority Leader [[Mitch McConnell]], R-[[Kentucky]]

*Senator [[Richard Burr]], R-[[Kentucky]]

*Senator [[Norm Coleman]], R-[[Minnesota]]

*Senator [[John Ensign]], R-[[Nevada]]

*Senator [[Orrin Hatch]], R-[[Utah]]

*Senator [[Joseph Lieberman]], I/D-[[Connecticut]]

*Congressman Michele Bachmann, R-[[Minnesota]]

*Congressman Tom Cole, R-[[Oklahoma]]

*Congressman Lincoln Diaz-Balart, R-[[Florida]]

*Congressman Thelma Drake, R-[[Virginia]]

*Congressman Mark Kirk, R-[[Illinois]]

*Congressman Kevin McCarthy, R-[[California]]

*Tommy Espinoza

*Maj. [[General]] Rick Goddard, U.S. Air Force (Ret.)

*Bill Gross

*Ashley Gunn

*Chris Hackett

*Doug Leatherdale

*Jay Love

*Cynthia Lummis

*Erik Paulsen

*Capt. Leslie Smith, U.S. Army (Ret.)

'''Tuesday 9/2 (Theme: Reform):'''
*Former [[New York City]] Mayor [[Rudy Giuliani]], Keynote speaker

*Governor Jon Huntsman, R-[[Utah]]

*Governor [[Linda Lingle]], R-[[Hawaii]]

*Governor [[Sarah Palin]], R-[[Alaska]]

*Former Gov. [[Mike Huckabee]], R-[[Arkansas]]

*Former Gov. and Homeland Security Secretary [[Tom Ridge]], R-[[Pennsylvania]]

*Former Lt. Governor [[Michael Steele]], R-[[Maryland]]

*Senator [[Tom Coburn]], R-[[Oklahoma]]

*Former Sen. Fred Thompson, R-[[Tennessee]]

*House Minority Leader [[John Boehner]], R-[[Ohio]]

*Congressman Marsha Blackburn, R-[[Tennessee]]

*Congressman Luis Fortuño, R-[[Puerto Rico]]

*Congressman Adam Putnam, R-[[Florida]]

*State Sen. Dennis Hollingsworth, R-[[California]]

*Rosario Marin, California Secretary of the State

*Chris Collins

*Carolyn Dunn

*Phil Hayes

*Lisa Keegan

*Ruth Novodor

*Dr. Elena Rios

*Shirley Sadler

*Joe Watkins

'''Wednesday 9/3 (Theme: Prosperity):'''

*[[Cindy McCain]]

*Republican Party’s Vice Presidential Nominee

*Governor [[Bobby Jindal]], R-[[Louisiana]]

*Former Gov. [[Mitt Romney]], R-[[Massachusetts]]

*Senator [[Norm Coleman]], R-[[Minnesota]]

*Senator [[Kay Bailey Hutchison]], R-[[Texas]]

*Congressman [[Mike Pence]], R-[[Indiana]]

*Mayor Mick Cornett, R-Oklahoma City

*State Sen. Abel Maldonado, R-[[California]]

*Carly Fiorina, Victory ‘08 Chairman for the RNC, former Chairman and CEO of Hewlett-Packard Co.

*Meg Whitman, National Co-Chair for McCain 2008 and former President and CEO of [[eBay]]

*Renee Amoore*

*Anne Beiler*

*Jessica Colon*

*Christy Swanson*

*Raul “Danny” Vargas*

'''Thursday 9/4 (Theme: Peace):'''

*[[John McCain]]

*Governor [[Charlie Crist]], R-[[Florida]]

*Governor [[Tim Pawlenty]], R-[[Minnesota]]

*Senator [[Sam Brownback]], R-[[Kansas]]

*Senator [[Lindsey Graham]], R-[[South Carolina]]

*Senator [[Mel Martinez]], R-[[Florida]]

*Former Senate Majority Leader [[Bill Frist]], R-[[Tennessee]]

*Congressman Mary Fallin, R-[[Oklahoma ]]

*Michael Williams, Chairman of the Texas Railroad Commission

*David Flau

*Christopher Fussner

*Lt. General Carol Mutter, U.S. Marine Corps (Ret.)

*Charlie Smith

==Debates==
===Presidential Debates===
There will be three presidential debates for the 2008 election season. The first debate will be held on September 26th, at the University of Mississippi. The topic for the debate is "Foreign Policy & National Security" and will be moderated by Jim Lehrer. The debate will be a podium debate, broken into 9 nine-minute segments. The moderator will introduce a topic, and then each candidate will have 2 minutes to comment. Following their answers, there will be 5 minutes of open discussion on the topic, facilitated by the moderator.

The second debate will be held on October 7th, at Belmont University in Nashville, TN. The moderator will be Tom Brokaw, and the debate will be in a town hall-style. The questions will come from audience members and the Internet, as chosen by the moderator. After each question, the candidates will have two minutes each to respond, as well as a one-minute followup to the opposing candidate's response.

The final debate will be held on October 15th, at Hofstra University in Hempstead, NY. The topic for the debate is "Domestic and Economic Policy" and will be moderated by Bob Schieffer. The candidates will be seated at a table, as opposed to behind a podium, and the format will follow that of the first debate. In addition, though, the candidates will be given an opportunity to present a 90-second closing argument.

===Vice Presidential Debate===
There will be one vice presidential debate held on October 2nd, at Washington University in Saint Louis, MO. The debate will be moderated by Gwen Ifill, with a format to be determined after the vice presidential nominees have been selected.

==Third parties and Independents==
===Libertarian party===
The [[Libertarian Party]] selected former Representative [[Bob Barr]] of [[Georgia]] as its 2008 presidential candidate on May 25, 2008.<ref>http://www.lpconvention.org/</ref> Former Democratic candididate [[Mike Gravel]] sought the Libertarian nomination but lost to Barr.<ref> http://elections.foxnews.com/2008/05/25/libertarians-pick-barr-as-presidential-nominee/ </ref>

Barr has, on his campaign website, linked to a proposed Libertarian strategy laid out by a member of his campaign staff. Although Barr has not officially claimed this as his strategy, the link appears to be a tacit endorsement. The strategy is called the "gold states" strategy. Instead of waging a 50-state campaign with the aim of securing 270 electoral votes and an outright electoral college win, Barr would focus on about 18-20 states where neither Obama or McCain has strong support. Winning that number of states could net Barr from 180-200 electoral votes, and would exceed either Obama or McCain's number and prevent either of them from reaching 270. Under US Constitution Amendment 12, with no candidate having an electoral vote majority, the election would be thrown into the House of Representatives, which would have to choose the president from the top three electoral vote getters. At this stage, Barr could argue that as the top electoral vote recipient, he should become the President, and might draw support from conservative Democrats displeased with Obama's positions, and from Republicans who dislike McCain.

Although winning the largest number of electoral votes would assist Barr in making such an argument, it is not absolutely necessary. Given the close divide in the electoral vote in the 2000 and 2004 elections, Barr could throw the vote into the House by winning a handful of states to garner perhaps 15-20 electoral votes.

The House of Representatives currently has a Democratic majority, but it is important to note that under the US Constitution Amendment 12, the vote is not a straight vote of the members of the House. Instead, each ''State'' gets one single vote, and that vote is determined by the members from that State. Although many large states like California and New York have large Democratic majorities, these will be balanced by the many smaller Southern and Midwestern states with Republican majorities. A handful of states have an even number of House members, and are split down the middle for control.

===Constitution Party===
The [[Constitution Party]] held its convention in Kansas City, Kansas, on April 24 through April 27. The party nominated Pastor [[Chuck Baldwin]] over former U.N. Ambassador and Republican presidential candidate [[Alan Keyes]].<ref> http://www.constitutionparty.com/news.php?aid=751 </ref>

===Green Party===
[[Cynthia McKinney]], who was defeated in her bid for re-election to the U.S. House of Representatives after voting against the [[Iraq War]] and being arrested on battery charges after striking a Capitol Hill police officer, won the [[environmentalist]] [[Green Party]]'s nomination for president at the party convention July 12, 2008. Running for Vice President on the Green ticket is "Hip-Hop activist and journalist" Rosa Clemente.<ref>http://www.gp.org/press/pr-national.php?ID=79</ref>

===Independents===
[[Ralph Nader]] announced his independent candidacy for president on February 24, 2008, to focus on "stem[ming] corporate crime and Pentagon waste and promot[ing] labor rights", issues he feels are ignored by the main parties.<ref>http://www.foxnews.com/wires/2008Feb24/0,4670,APNader,00.html</ref> His [[running mate]] is former President of the San Francisco Board of Supervisors [[Matt Gonzalez]].<ref>http://www.votenader.org/about/matt-gonzalez/</ref>

New York City Mayor [[Michael Bloomberg]] has been frequently mentioned as a possible independent candidate for the 2008 presidential election and fueled that speculation when he left the Republican Party in June 2007. However, he declared in a February 28, 2008, op-ed article in ''The New York Times'', "I am not—and will not be—a candidate for president," but added that "[i]f a candidate takes an independent, nonpartisan approach—and embraces practical solutions that challenge party orthodoxy—I’ll join others in helping that candidate win the White House."<ref>[http://www.nytimes.com/2008/02/28/opinion/28mike.html?_r=1&oref=slogin "I'm Not Running for President, but..."]</ref>

==Historical Information==

===Withdrawn Republican Party Candidates===
Senator [[Sam Brownback]], [[Kansas]], withdrew October 19, 2007, citing a lack of funding.<ref>http://ap.google.com/article/ALeqM5ifK7vLWH4aU4urzB-4bSX1u4QF9QD8SC0EI00</ref> Brownback also had done poorly at key conservative milestones, such as the [[Value Voters Debate]].<ref>http://www.valuesvoterdebate.com/pollresults.cfm, Brownback lost sizably to [[Mike Huckabee]].</ref> He endorsed Senator [[John McCain]] of [[Arizona]].

Former Governor [[Jim Gilmore]], [[Virginia]], withdrew July 14, 2007

Former Mayor [[Rudy Giuliani|Rudolph Giuliani]], [[New York City]] He withdrew after a defeat in [[Florida]], on which he had depended on heavily. He endorsed John McCain afterwards.

Former Governor [[Mike Huckabee]], [[Arkansas]]. He withdrew from the race once McCain received the 1,191 delegates needed to win the nomination. He also promised to support McCain as the nominee, thus giving his endorsement to him.

Representative [[Duncan Hunter]], [[California]] 52nd, withdrew January 19, 2008 and endorsed Governor Mike Huckabee.

Representative [[Ron Paul]], [[Texas]] 14th, withdrew June 12, 2008.

Former Governor [[Mitt Romney]], [[Massachusetts]], suspended his campaign after poor showings on [[Super Tuesday]] and later endorsed John McCain.

Representative [[Tom Tancredo]], [[Colorado]] 6th, withdrew December 20, 2007. He endorsed fmr. Governor [[Mitt Romney]] of [[Massachusetts]].

Former Senator [[Fred Thompson]], [[Tennessee]]. He endorsed [[John McCain]] of Arizona.

Former Governor and HS Secretary [[Tommy Thompson]], withdrew August 12, 2007. He endorsed fmr. Mayor [[Rudy Giuliani]] of [[New York]].

===Potential Republican Candidates Who Declined to Run===
*Former Senator [[George Allen]], Virginia - endorsed Fred Thompson.
*Former Governor [[Jeb Bush]], [[Florida]] - endorsed John McCain.
*[[Vice President]] [[Dick Cheney]]
*Former Senate Majority Leader [[Bill Frist]], Tennessee
*Former [[Speaker of the House]] [[Newt Gingrich]], [[Georgia]]
*Senator [[Chuck Hagel]], [[Nebraska]]
*Former Governor [[George Pataki]], New York
*[[Secretary of State]] [[Condoleezza Rice]]
*Governor [[Mark Sanford]], [[South Carolina]]
*Former Senator [[Rick Santorum]], [[Pennsylvania]]

===Republican Vice-Presidential Candidate===
[[Image:Sarah Palin.jpg|thumb|left|100px|thumb]]
*Governor [[Sarah Palin]] of [[Alaska]].

=== Withdrawn Democratic Party candidates ===

Senator [[Joseph Biden]], [[Delaware]]<ref> http://youdecide08.foxnews.com/2008/01/04/chris-dodd-abandons-presidential-campaign-after-poor-showing-in-iowa/ </ref> He withdrew after a disappointing finish in the [[Iowa Caucus]].

Senator [[Hillary Clinton]], [[New York]] Suspended her campaign after Obama reached the number of needed delegates. She endorsed him shortly afterwards.

Senator [[Chris Dodd]], [[Connecticut]]<ref> http://youdecide08.foxnews.com/2008/01/04/chris-dodd-abandons-presidential-campaign-after-poor-showing-in-iowa/</ref> He withdrew after a disappointing finish in the [[Iowa Caucus]] and later endorsed Senator [[Barack Obama]].

Former Senator [[John Edwards]], [[North Carolina]]. He withdrew after losing in all of the early primary states. He later endorsed Senator Obama after Obama won the North Carolina primary.

Former Senator [[Mike Gravel]], [[Alaska]]. He withdrew to seek the Libertarian party nomination (which he lost to Bob Barr.) He also endorsed Green Party Candidate, Jesse Johnson. <ref> http://elections.foxnews.com/2008/03/12/democratic-candidate-gravel-endorses-green-party-presidential-hopeful/ </ref>

Representative [[Dennis Kucinich]], [[Ohio]] 10th<ref> http://youdecide08.foxnews.com/2008/01/24/kucinich-drops-presidential-bid/ </ref> He withdrew to keep his seat in the House of Representatives.

Governor [[Bill Richardson]], [[New Mexico]]<ref>
[http://youdecide08.foxnews.com/2008/01/09/ap-bill-richardson-drops-out-of-democratic-presidential-race/ AP: Bill Richardson Drops Out of Democratic Presidential Race], [[Associated Press]], [[Fox News Channel]], January 9, 2008</ref> He withdrew after twin fourth-place finishes (in Iowa and New Hampshire) that showed his credentials could not compete with his rivals’ star power. He later endorsed Senator Obama.

Former Governor [[Tom Vilsack]], Iowa. He endorsed [[Hillary Clinton]] of [[New York]]

===Potential Democratic Candidates Who Declined to Run===
*Senator [[Evan Bayh]], [[Indiana]] - endorsed Hillary Clinton
*[[General]] [[Wesley Clark]] (Ret.) - endorsed Hillary Clinton
*Former Senate Minority Leader [[Tom Daschle]], [[South Dakota]]
*Former Governor and current DNC Chairman [[Howard Dean]], [[Vermont]]
*Senator [[Russ Feingold]], [[Wisconsin]]
*Former Vice President [[Al Gore]], [[Tennessee]]
*Senator [[John Kerry]], Massachusetts - endorsed Barack Obama
*Rev. [[Al Sharpton]]
*Former Governor [[Mark Warner]], [[Virginia]]

===Democratic Vice-Presidential Candidate===
On August 23rd, Senator Barack Obama announced, via text message to 3 million cell phone numbers of his supporters, his nomination of Joseph Biden to Vice President.
[[Image:06 biden.gif|thumb|left|100px|Joseph Biden]]
 
 
 
 
 
 
 
 
 

==Primaries and Caucuses==
===Iowa Caucus: January 3, 2008===
The first caucus in the 2008 presidential election cycle was the [[Iowa Caucus]]. The Democratic winner of the Iowa caucus was [[Barack Obama]], who managed to beat national frontrunner [[Hillary Clinton]] and former [[North Carolina]] Senator, [[John Edwards]]. The official results were:
{| style="background:white; color:blue" border="1" class="wikitable"
|+ Dem. Iowa caucus results
|-
! candidates
! percentage
|-
| Barack Obama
| 38%
|-
| John Edwards
| 30%
|-
| Hillary Clinton
| 29%
|-
| Bill Richardson
| 2%
|-
| Joseph Biden
| 1%
|-
|}
Other candidates such as, [[Chris Dodd]], [[Dennis Kucinich]] and [[Mike Gravel]] did not gain a significant percentage. Because of the Iowa results, [[Barack Obama]] was expected now to beat [[Hillary Clinton]] in the upcoming [[New Hampshire]] primary. Also, [[Joe Biden]] and [[Chris Dodd]] both withdrew from the race because of their low showings in the Iowa caucus.

On the Republican side, [[Mike Huckabee]] defeated [[Mitt Romney]] by an even closer margin. The results were:
{| {| style="background:white; color:red" border="1" class="wikitable"
|+ GOP Iowa caucus results
|-
! Candidate
! percentage
|-
| Mike Huckabee
| 34%
|-
| Mitt Romney
| 25%
|-
| Fred Thompson
| 13%
|-
| John McCain
| 13%
|-
| Ron Paul
| 10%
|-
| Rudy Giuliani
| 3%
|}

Candidates such as [[Duncan Hunter]], [[Alan Keyes]] and [[John H. Cox]] didn't come out with a significant percentage. Romney's loss in [[Iowa]] set him back in the upcoming primary in [[New Hampshire]]. Huckabee's win however gave him surge in [[New Hampshire]] where he had before been very low in the polls. McCain's unexpected high showing in Iowa also gave him a little boost in New Hampshire.

===New Hampshire Primary: January 8, 2008===
The next milestone after the Iowa caucus was the New Hampshire primary. (Only the Republican Wyoming primary occurred on January 5, which was won by Romney.) On the Republican side, Mitt Romney's defeat in Iowa helped his most significant opponent, John McCain. Huckabee's victory in Iowa helped boost his campaign and gave him a higher showing than even he had expected. On the Democratic side, Obama's defeat of Clinton and Edwards led to the polls usually predicting a Obama victory in New Hampshire.
The winner for the Republicans was John McCain and for the Democrats Hillary Clinton. The Democratic results were:

{| {| style="background:white; color:blue" border="1" class="wikitable"
|+ Dem. NH primary results
|-
! Candidate
! percentage
|-
| Hillary Clinton
| 39%
|-
| Barack Obama
| 36%
|-
| John Edwards
| 17%
|-
| Bill Richardson
| 5%
|-
| Dennis Kucinich
| 1%
|}

Hillary Clinton's win was a setback for Obama and much-needed victory for Clinton. The polls reliability was most hurt with these results. (Mike Gravel didn't reach a significant percentage.)
The Republican results were:

{| {| style="background:white; color:red" border="1" class="wikitable"
|+ GOP NH primary results
|-
! Candidate
! percentage
|-
| John McCain
| 37%
|-
| Mitt Romney
| 31%
|-
| Mike Huckabee
| 11%
|-
| Rudy Giuliani
| 9%
|-
| Ron Paul
| 8%
|-
| Fred Thompson
| 1%
|-
| Duncan Hunter
| 1%
|}

These results put the very survival of Mitt Romney on the line and intensified the upcoming Michigan primary. John McCain's victory helped boost his campaign and he predicted to go on to victory in Michigan and South Carolina. Huckabee also did well and placed an unusual third place.

===Michigan, Nevada and South Carolina===
Romney's second-place defeat in Iowa and New Hampshire, caused his campaign to focus all its attention on the Michigan Primary on January 15th. He managed to defeat his rivals, John McCain and Mike Huckabee.
Since the Democrats had taken Michigan's delegates away, most of the candidates didn't even bother to get on the ballot. Clinton won easily, because she was one of the only major candidates to be even on the ballot.
Romney and the Democrats turned their attention to the Nevada caucus, while Republicans John McCain, Mike Huckabee and Fred Thompson looked to the South Carolina primary. (The Republicans had the South Carolina primary on the same day as the Nevada caucus, January 19th.)
The Democratic results were:
{| {| style="background:white; color:blue" border="1" class="wikitable"
|+ Dem. Nevada caucus results
|-
! Candidate
! Percentage
|-
| Hillary Clinton
| 51%
|-
| Barack Obama
| 45%
|-
| John Edwards
| 4%
|}

Hillary Clinton probably won because of her strong position on the Yucca Mountain issue, which was critical to Democratic caucus goers.
Romney easily won the Republican Nevada caucus, probably because it is close to Utah, a traditionally Mormon state. Duncan Hunter had been hoping for a strong finish in Nevada and decided to leave the race, because of his poor showings.

{| {| style="background:white; color:red" border="1" class="wikitable"
|+ GOP SC caucus results
|-
! Candidate
! percentage
|-
| John McCain
| 33%
|-
| Mike Huckabee
| 30%
|-
| Fred Thompson
| 16%
|-
| Mitt Romney
| 15%
|-
| Ron Paul
| 4%
|-
| Rudy Giuliani
| 2%
|}

McCain’s victory in South Carolina propelled him as the national front-runner. Mike Huckabee’s 2nd place defeat forced him to cut back in expenses due to lack of funds. Fred Thompson’s defeat was irreparable and he withdrew from the race shortly afterwards

The Democrats prepared for the primary in South Carolina on January 26th. Obama won the primary by a huge margin over Clinton and Edwards. This was a severe loss for Edwards since he had been born in South Carolina and was Senator for North Carolina. Obama probably won because of the state’s huge black population.

===Florida Primary: January 29, 2008===
Because Florida moved its date to January 29th the Democratic party stripped Florida of its delegates and the candidates agreed not to campaign there.
The Democratic results were:
{| {| style="background:white; color:blue" border="1" class="wikitable"
|+ Dem. Florida primary results
|-
! candidates
! percentage
|-
| Hillary Clinton
| 50%
|-
| Barack Obama
| 33%
|-
| John Edwards
| 14%
|-
| Joe Biden
| 1%
|-
| Bill Richardson
| 1%
|-
| Dennis Kucinich
| 1%
|}
Florida was the last early primary state and after his loss, John Edwards suspended his campaign. (Although they had withdrawn, candidates Biden, Richardson and Kucinich still received votes. Mike Gravel didn't receive a percentage.)
The Republicans concentrated on Florida more than the Democrats, because the Republican party chose to remove only half of their delegates. Candidate [[Rudy Giuliani]] chose to ignore earlier primaries, hoping that a large win in Florida, with its strong transplanted New Yorkers contingent, would propel him to the nomination. Unfortunately, with earlier wins, John McCain and Mitt Romney both gained momentum and began to lead Giuliani in the polls.
The Republican results were:
{| {| style="background:white; color:red" border="1" class="wikitable"
|+ GOP Florida primary results
|-
! candidates
! percentage
|-
| John McCain
| 36%
|-
| Mitt Romney
| 31%
|-
| Rudy Giuliani
| 15%
|-
| Mike Huckabee
| 13%
|-
| Ron Paul
| 3%
|-
| Fred Thompson
| 1%
|}

The results caused Giuliani to exit the race the next day and endorse the primary winner, John McCain. (Although Fred Thompson had withdrawn he got some support anyway.)

===Super Tuesday: February 5, 2008===
Super Tuesday held the largest number of presidential primary's and caucuses. Twenty-four states were held for one or both parties were held on this date.

*The Democratic results were:
*Candidates
*Hillary Clinton, 9 states won, ([[American Samoa]], [[Arizona]], [[Arkansas]], [[California]], [[Massachusetts]], [[New Jersey]], [[New Mexico]], [[New York]], [[Oklahoma]], [[Tennessee]].) Number of delegates won, 826.
*Barack Obama, 13 states won, ([[Alabama]], [[Alaska]], [[Colorado]], [[Connecticut]], [[Delaware]], [[Georgia]], [[Idaho]], [[Illinois]], [[Kansas]], [[Minnesota]], [[Missouri]], [[North Dakota]], [[Utah]].) Number of delegates won, 838.

*GOP Super Tuesday primary results
*John McCain, 9 states won, (Arizona, California, Connecticut, Delaware, Illinois, Missouri, New Jersey, New York, Oklahoma). Number of delegates won: 602.
*Mitt Romney, 7 states won, (Alaska, Colorado, Massachusetts, Minnesota, Montana, North Dakota, Utah). Number of delegates won: 201.
*Mike Huckabee, 5 states won, (Alabama, Arkansas, Georgia, Tennessee, West Virginia). Number of delegates won: 152.
*Ron Paul, 0 states won. Number of delegates won: 10

===February 9th Primaries===
The next major primary after Super Tuesday was on February 9, 2008. The Democrats held contests in [[Louisiana]], [[Nebraska]] & [[Washington]]. The Republicans held three other contests in [[Kansas]], [[Louisiana]] & [[Washington]].
Governor Huckabee won Kansas and Louisiana, but lost to McCain in Washington by a close margin. Barrack Obama won all three Democratic contests, and also won the Maine caucus, the next day on February 10th.

===Potomac Primary: February 12, 2008===
The next primary-date was the Potomac primary on February 12. It is called that because the three states; [[District of Columbia]], [[Maryland]] and [[Virginia]], which all were near the Potomac River, had their primary date on the same date. John McCain won all three Republican contests, while Barrack Obama won all of the Democratic contests.

===Super Tuesday 2: March 4, 2008===
After Obama won his 11th consecutive victory on the February 19th primaries in [[Wisconsin]] and [[Hawaii]], Clinton was desperate to win the March 4th primaries in [[Ohio]], [[Texas]], [[Rhode Island]] & [[Vermont]]. Huckabee also needed more victories to prevent McCain from reaching the needed 1,191 delegates for the Republican nomination.

Clinton won all of the states except for Vermont, which Obama won. McCain won all of the primaries, causing Governor Huckabee to leave the race that evening.

===Pennsylvania Primary===
After Clinton's victories on Super Tuesday 2, both Democrats looked ahead to the Pennsylvania primary on April 22nd. Obama lost some popularity after video clips were shown of his Pastor, Rev. [[Jeremiah Wright]], saying "God damn America!" during a sermon. Obama also commented about people bitterly clinging to guns and religion because they were upset with Washington policies. Clinton beat Obama by 9 percentage points, continuing the long drawn-out contest between the two. John McCain was able to easily win the primary as the Republican party's presumptive nominee.

===Guam Caucus===
On May 3rd, Guam held its Democratic caucuses. Out of more than 4,500 votes, Senator Obama won by 7 votes. The results gave Obama 2 pledged delegates and Senator Clinton 2 pledged delegates.

===Indiana and North Carolina Primary===
Both Indiana and North Carolina held their primaries on May 6th. Heading into the primary, registered African American voters reported receiving "robocalls" telling them they were not registered to vote. The calls were traced back to an organization called "Women's Voices Women Vote". The organization included members close to the Clintons. The calls ended with an order from the state Attorney General. Senator Obama proceeded to win the primary with 56.1%.

Leading into the Indiana primary, the polls were very close, with neither candidate leading by more than the polls' margin-of-error. Senator Clinton was looking for a large win to follow up on the Pennsylvania primary, with much the same demographic as PA and Ohio. Senator Obama, though, surprised many in the news media and the Clinton campaign by losing by only a small margin, 50.56% - 49.44%. With the near-split of the delegates in Indiana, combined with his win in North Carolina, the media began to declare Senator Obama as the nominee, although he had not yet reached the necessary delegate count.

===West Virginia Primary===
With a strong working-class demographic, Senator Clinton was expected to win the West Virginia primary on May 13th. Polls leading into the primary had her up 29 points on Senator Obama. The final vote tally exceeded the polls, with Senator Clinton winning 66.99% - 25.67%.

===Oregon and Kentucky Primaries===
The Oregon primary was a mail-only primary--the only such primary in the nation. Democratic voters received ballots in the mail between May 2nd and May 6th, and had to be received by county election officials by May 20th. Polling leading up to the primary showed Senator Obama with a 10-15% lead over Senator Clinton. Obama held a rally on May 18th at the Tom McCall Waterfront Park in Portland which drew an estimated 72,000 people. It was the largest rally Obama had held, more than doubling the 35,000 that came out to see him in Pennsylvania. By the end of the vote tally, Obama had won the state primary 58.5% - 40.5%.

The Kentucky primary, held the same day, was long believed a lock for Senator Clinton. The voter demographic mirrored the West Virginia primary, with a heavy working-class population. Senator Clinton easily won the primary, 65.5% - 29.9%. The large win, though, was drowned out in the media by Senator Obama's win in Oregon, and more importantly, by the endorsement of Senator Obama by former opponent and former vice presidential candidate, John Edwards.

===Puerto Rico Primary===
With Clinton behind in both pledged and superdelegates at this point in the race, every primary and delegate became even more important to forestall Obama reaching the necessary number of delegate to clinch the nomination. Clinton's strategy was to win out the primaries and work to convince superdelegates to support her nomination at the party convention as the best chance to beat McCain. Thus Puerto Rico, usually an afterthought in previous elections, rated visits by both candidates before the June 1st primary. Heading into the primary, Clinton led in two polls by 13% each time. The results beat poll expectations, with Clinton winning the primary 67.7% - 31.27%.

===Montana and South Dakota Democratic Primaries===
The last Democratic primaries were held on June 3rd. Senator Obama needed to win one of the primaries, and merely come close in the other to clinch the nomination. In Montana, Obama got the win he needed, defeating Senator Clinton 56.3%-41.25%. In South Dakota, Senator Clinton won, but with a close enough margin to give Obama the final delegates necessary. The result of the primary was 55.35% - 44.65%. Senator Obama was in Saint Paul, Minnesota, the site of the Republican Nominating Convention, to accept the party's unofficial nomination. <ref>[http://www.youtube.com/watch?v=dtL-1V3OZ0c Barack Obama Democratic Nomination Victory Speech]</ref>

==See Also==
[[Previous Breaking News/2008 Presidential Election|Articles about the '''2008 Presidential Election''' from previous "Breaking News"]]

== References ==
<references/>

{{2008 presidential candidates}}
{{DEFAULTSORT:2008, United States presidential election,}}
[[Category: United States]]
[[Category:United States Presidential Elections]]

Deuterium

2008-07-26T22:44:48Z

Joldy0:

'''Deuterium''' is an isotope of [[hydrogen]], with the nucleus composed of a [[proton]] and a [[nucleus]]. It has a different neutron absorption spectrum from that of ordinary hydrogen. Deuterium is stable, although it is roughly 6000 times less abundant than common hydrogen (whose nucleus contains no neutrons).

Deuterated molecules (in which hydrogens have been partially or fully replaced by deuterium) have similar properties to their hydrogen monologues. For example, deuterated water has a boiling point of 101.4 degrees [[Celsius]] compared to [[water|normal water]], with a boiling point of 100 Celsius.
[[Category:chemistry]]

International System of Units

2008-07-26T22:43:40Z

Joldy0: /* Kelvin */ Kelvin not pluralised

The [[International System of Units]] ([[France|French]] ''Système International d'Unités'', ''Système International'' or '''SI''' for short) is the agreed-upon system for measurement as adopted by periodic meetings of the forty-six-member ''Conférence Générale des Poids et Mesures'' (General Conference on Weights and Measures, abbreviated CGPM). It was developed in 1960 from the [[meter-kilogram-second]] (MKS) system and replaces the [[centimeter-gram-second]] (cgs) system.

The SI system introduced several new units for physical terms and continues to change to this day. As measurement accuracy improves, so the standards against which measures are calibrated must also be defined to higher accuracy. Definitions have been subject to change through the years, and generally depend on assumptions that the CGPM makes about what is permanent and what is not.

Nearly all countries have adopted the SI system of units as their official system of weights and measures. The [[United States of America]] also uses the [[US customary system]], which is defined in terms of metric units since the Convention on the Meter.

==Principles==
The value of a physical quantity is considered to a number multiplied by a unit. Units may be '''base units''' or '''derived units'''. Derived units are constructed by multiplying, dividing or raising to powers the base units or their multiples and submultiples. Thus a unit of speed, the meter per second, can be constructed by dividing the base unit of length, the meter, by the base unit for time, the second. The symbol for a derived unit is constructed from the symbols for its constituent base units. Multiplication should be denoted by either a space or the half-high dot ([[ANSI]] symbol 0183). Division is denoted by the '''solidus''' (oblique stroke) or by a negative exponent. For example, 25 meters per second could be written in symbols as 25 m/s or 25 m·s-1. New derived units can always be constructed as new situations arise. There is no limit to the number of multiplications, divisions and raising of powers that can be used, so there is no limit to the number of possible derived units. 22 of the derived units have their own names.

== The Base Units ==
SI depends on seven ''base units'' of measurement from which all other units derive. They are:

=== Second ===
The '''second''' (symbol s) is the unit of [[time]], defined as<blockquote>
the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the [[cesium]]-133 atom (13th CGPM, 1967).</blockquote> This translation is defined at [[absolute zero]].

There are 60 seconds in a [[minute]] and 3600 seconds in an [[hour]].

Historically the second was without definition, until 1820, when it was defined as 1/86,400 of the mean solar day. In 1956 the CGPM adopted the ''ephemeris second'' definition of 1/31 556 925.9747 of the tropical year 1900. The present definition dates from 1963.

=== Meter ===
The '''meter''' (or '''metre''') (symbol m) is the unit of [[length]]. Originally (see [[Metric system]]) it had a definition depending on the dimensions of the earth. It was defined so that the circumference of the Earth would be exactly 40 million meters. However, the circumference of the Earth depends on where you measure it, so the French creators of the metric system chose the circumference which travels through both poles, along the [[meridian]] that passes through [[Paris]]. (This was a snub to the British, who had defined longitude by reference to the meridian passing through [[Greenwich]]).
It later had a definition dependent on a particular type of radiation. Today its definition depends upon the second and on the [[speed of light]] in a vacuum--which the CGPM now assumes to be constant. Thus a meter is 1⁄299,792,458th of a light-second. (Therefore the speed of light is exactly 299,792,458 meters per second.)

* The '''centimeter''' (or '''centimetre''') (symbol cm) is one-hundreth of a meter. It is not a base unit but is included here because it is a commonly used unit of length.

=== Kilogram ===
The '''kilogram''' (symbol kg) is the unit of [[mass]]. It is defined as an amount of mass equal to that of the standard prototype kilogram kept at the International Bureau of Weights and Measures at Sèvres, France. It is the ''only unit of measure'' based on a physical artifact. This is the same artifact that has provided the definition of grams and kilograms for over a century. It is also the only base SI unit to retain its decimal prefix, ''kilo-'', which comes from the [[Greek]] word for "thousand." Efforts are presently underway to redefine the kilogram more rigorously than it is defined today.

=== Ampere ===
The '''ampere''' (symbol A) is the unit of [[electric current]]. (Strangely, electric ''charge'' is not the base quantity.) The definition is as follows:<blockquote>One ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross section, and placed 1 meter apart in a vacuum, would produce between these conductors a force equal to 2 × 10−7 newtons per meter of length.</blockquote>

=== Kelvin ===
The '''kelvin''' (symbol K, named after [[Lord Kelvin]]) is the unit of [[temperature]], and specifically of [[absolute temperature scale|absolute temperature]]. It is 1/273.16 of the absolute temperature of the [[triple point]] of [[water]]. The size of the kelvin is the same as the size of the [[Celsius]] degree, and thus to convert from degrees Celsius to kelvins, one adds 273.15. (The zero of the Celsius scale, which is the [[melting point]] of water ice under standard atmospheric pressure, happens to be 273.15 kelvins.) Note that one says '200 kelvin' not '200 ''degrees'' kelvin'.

=== Mole ===
: ''Main Article: [[Mole]]''
The '''mole''' (symbol mol) is the unit of [[amount of substance]]. Its definition depends on that of the kilogram. It is that mass of any substance having as many ''elementary entities'' of that substance as are to be counted in 12 grams of [[carbon]]-12. An ''elementary entity'' is either an [[atom]] or a [[molecule]]--but for an [[ionic compound]], the number of elementary entities is the total number of [[cation|cations]] and [[anion|anions]] required to make the compound electrically neutral.

[[Avogadro's number]] gives the required number of elementary entities, and is represented by the letter L. L has the approximate value of 6.022X1023

Effectively, one mole of any substance is its formula mass in grams.

=== Candela ===
The '''candela''' (symbol cd) is the unit of [[luminous intensity]]. It replaces the old idea of 'candlepower'. Its definition is <blockquote>the luminous intensity, in a given direction, of a [light] source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of 1⁄683 watt per steradian.</blockquote>

The term ''hertz'' means "vibrations, transitions, or other events per second." For the definitions of the terms '''watt''' and '''steradian''', see below. Light having the stated frequency is generally perceived as red.

== Named Derived Units ==
SI has multiple derived units that measure quantities in several areas of measurement and inquiry. The following is a comprehensive list of the named derived units, grouped by category.

=== Dynamics ===
==== Newton ====
The '''newton''' (symbol N, named for [[Sir Isaac Newton]]) is the SI unit of [[force]]. One newton is that amount of force required to give a one-kilogram mass an acceleration of one meter per second per second. To calculate, multiply mass by acceleration.

==== Pascal ====
: ''Main Article: [[Pascal]]''
The '''pascal''' (symbol Pa, named for [[Blaise Pascal]]) is that amount of [[pressure]] that exerts a force of one newton per square meter of area.

=== Work and Power ===
==== Joule ====
The '''joule''' (symbol J, named for [[James Joule]]) is that amount of [[energy]] required to do the ''work'' of exerting a force of one newton over a distance of one meter. To calculate, multiply force by distance.
==== Watt ====
The '''watt''' (symbol W, named for [[James Watt]]) is the [[power]] required to do one Joule of work in one second. To calculate, divide work by time.
=== Electricity and Magnetism ===
==== Coulomb ====
The '''coulomb''' (symbol C, for [[C. A. Coulomb]]) is that amount of [[electric charge]] that passes through a conductor in one second at a current of one ampere. To calculate, multiply current by time.
==== Volt ====
The '''volt''' (symbol V, named after Alessandro Volta) is the [[electric potential]] difference between two conductors having a current flow of one ampere from one to another, and dissipating one watt of power. Most people find the phrase "electric potential" hard to understand and the alternative "electromotive force" to be hard to pronounce. They therefore use the word "voltage" for this quantity. To calculate, divide power by current--or divide work (or energy) by electric charge.

==== Ohm ====
The '''ohm''' (symbol Ω, for [[Georg Simon Ohm]]) is that amount of [[electric resistance]] that requires an electric potential difference of one volt to push a current of one ampere through it. To calculate, divide electrical potential by current.
==== Siemens ====
The '''siemens''' (symbol S, for [[Werner von Siemens]]) is the unit of [[electric conductance]], which is merely the reciprocal of resistance. In essence, the siemens is that level of conductance required to ''allow'' a current of one ampere to flow through a load after an electric potential of one volt is applied. To calculate it, divide current by electric potential or "voltage," rather than dividing voltage by current.

==== Farad ====
The '''farad''' (symbol F, for [[Michael Faraday]]) is that amount of [[capacitance]] that exists in a ''capacitor'' (essentially a pair or collection of metal plates that store charge) if a charge of one coulomb increases the electrical potential by one volt. To calculate, divide charge by electrical potential.
==== Weber ====
The '''weber''' (symbol Wb, for [[W. E. Weber]]) is <blockquote>the [[magnetic flux]] which, linking a circuit of one turn, would produce in it an electromotive force of 1 volt if it were reduced to zero at a uniform rate in 1 second.</blockquote> To calculate, multiply electric potential (or electromotive force) by time.
==== Henry ====
The '''henry''' (symbol H) is that [[inductance]] in a closed loop or coil that produces a magnetic flux of one weber given a current of one ampere. To calculate, divide magnetic flux by current.
==== Tesla ====
The '''tesla''' (symbol T, for [[Nicola Tesla]]) is the [[magnetic flux density]] required to produce one weber of magnetic flux in one square meter of surface area. To calculate, divide flux by area.
=== Light ===
==== Lumen ====
The '''lumen''' (symbol lm) is that amount of [[luminous flux]] emitted in a solid-angle region of one steradian that produces one candela of intensity. To calculate, multiply luminous intensity by solid angle.
==== Lux ====
The '''lux''' (symbol lx) is that [[illuminance]] that represents one lumen in one square meter. To calculate, divide luminous flux by area.
==Temperature==
The degree Celsius (symbol °C) is a derived unit of temperature centered on the freezing temperature of water ice rather than absolute zero. It is defined by the temperature in kelvins minus 273.15. Note that
* the degree symbol (°) is a mandatory part of the symbol, as 'C' denotes the coulomb, the unit of electric charge
* It is perfectly correct, though rather unusual in practice, to use metric prefixes with the degree Celsius. Thus one can say 'the melting point of the metal is in excess of 2 k°C'
* While one does not say '200 degrees Kelvin' one ''does'' say '200 degrees Celsius'
* Prior to 1960 the degree Celsius was known as the degree Centigrade, a term that is now deprecated.

=== Radioactivity, Radiation, Health Physics, and Radiation Safety ===
==== Becquerel ====
The '''becquerel''' (symbol Bq, for [[Henri Becquerel]]) is that amount of [[activity]] of a radioactive substance represented by one decaying atom per second.

==== Gray (Unit) ====
The '''gray''' (symbol Gy) is that [[absorbed dose]] of radiation that imparts one joule of energy to one kilogram of target mass. To calculate, divide imparted energy by mass.
==== Sievert ====
The '''sievert''' (symbol Sv) is the unit of [[dose equivalent]]. It is that dose of any given form of ionizing radiation that would cause a human being or an animal as much injury as would a one-gray dose of [[X ray]]s.

== Supplementary Units ==
The metric system originally had the two units of plane angle and solid angle. Since they consist of a unit of length divided by a unit of length and thus dimensionless CGPM decided not to retain them in the base units. They were put into a separate category called Supplementary Units. They have been moved again and are now listed as named Derived Units.

=== Radian ===
The '''radian''' (symbol rad) is the ''plane angle'' unit. It is the measure of a central angle (one having its origin as the center of a [[circle]]) that subtends an [[arc]] of the circle having a length equal to that of the radius. By convention, the [[circumference]] of the ''unit circle'' (a circle having a radius of one) is 2π, and therefore the maximum "major angle" of any circle is 2π radians.

=== Steradian ===
The '''steradian''' (symbol sr) is the ''solid angle'' unit. A ''solid angle'' is actually one [[nappe]] of a right circular conical surface. One steradian is the measure of a solid angle that subtends a portion of the surface of a [[sphere]] having an area equal to that of a square having sides equal in length to the radius. By convention, the [[surface area]] of a sphere is 4πr2, where r is the length of the radius, and thus the maximum "major solid angle" of any sphere is 4π steradians.

==Obsolete metric units==
As the metric system has changed over time, some units have been abandoned and replaced with others. Examples of obsolete metric units, which should not be used.

* The '''calorie''' was originally defined as the amount of [[energy]] required to raise 1 g of water through 1 °C. It later was clarified to raising the temperature from 15 °C to 16 °C, since the energy required varies slightly with temperature. Confusingly, a second calorie, the Calorie (spelt with an upper case C) was introduced that was defined as the amount of energy required to raise 1 kg of water through 1 °C. Thus , 1 Calorie = 1000 calories. The Calorie (big C) became widely used as a measure of food energy. To avoid the confusion the Calorie was renamed the kilocalorie and the term Calorie was deprecated. The kilocalorie has now been replaced by the joule as the unit of energy, though energy values in kilocalories are still widely seen.

* The '''Ångstrom''' was a very small unit of length equal to 10-10 m. It was used for describing the wavelength of light, for example. The ångstrom was replaced by the nanometer. 1 nm = 10 Å.

* The '''curie''' (symbol Ci, for [[Marie Curie]]) is an obsolete unit of radioactivity. Its original definition was "the amount of radioactivity in one gram of [[radium]]-226." Madame Curie, of course, is most famous as the discoverer of radium. It was replaced by the becquerel, though it is still widely used in the US nuclear power industry. One curie is equal to 3.7 * 1010 becquerel.

* The '''micron''' (symbol µ) was a unit of length equal to one thousandth of a millimeter. It was replaced by the micrometer (symbol µm) in 1960.

* The '''degree Centigrade''' (symbol °C) was renamed the degree Celsius (symbol °C) in 1960.

==Metric Prefixes==
The base and derived units can be multiplied by prefixes in order to extend their range to virtually every magnitude used in practice, from subatomic physics to the large-scale structure of the universe. The following prefixes are available.

{| class="wikitable"
|-
! The prefix:
! Abbreviated:
! Multiplies the unit by:
|-
| yocto-
| y
| 10-24
|-
| zepto-
| z
| 10-21
|-

| atto-
| a
| 10-18
|-
| femto-
| f
| 10-15
|-
| pico-
| p
| 10-12
|-
| nano-
| n
| 10-9
|-
| micro- ([[Greek]] ''small'')
| µ
| 10-6
|-
| milli- ([[Latin]] ''one thousand'')
| m
| 10-3
|-
| centi- (Latin ''one hundred'')
| c
| 10-2
|-
| deci- (Latin ''ten'')
| d
| 10-1
|-
| deka- (Greek ''ten'')
| da
| 101
|-
| hecto- (Greek ''one hundred'')
| H
| 102
|-
| kilo- (Greek ''one thousand'')
| k
| 103
|-
| mega- (Greek ''large'')
| M
| 106
|-
| giga- (Latin ''gigantic'')
| G
| 109
|-
| tera- (Greek ''wonder'')
| T
| 1012
|-
| peta-
| P
| 1015
|-
| exa-
| E
| 1018
|-
| zetta-
| Z
| 1021
|-
| yotta-
| Y
| 1024
|}

==Symbols, not Abbreviations==
The units of the SI do not have abbreviations, as these would vary depending on the language used and SI is designed to be the global standard. An English speaker might write 'sec' as an abbreviation for 'second', whereas a Spanish speaker would write 'seg' for 'segundo'. To get around this problem, a set of language-independent '''symbols''' were defined for each unit. Thus the symbol for the second is 's', for both the Spanish and English speaker. The SI symbols are a global standard, just like the Arabic numerals and the symbols for the chemical elements, that are the same whatever language is being used. For example, the language of [[Welsh]] does not contain the letter 'k' and the word 'kilometer' is spelt 'cilometr'. Nevertheless, a Welsh person writing in Welsh that 'the runway is 3 km long' would use '3 km' for 'three kilometers'. By contrast, use of an abbreviation such as 'cm' for 'cilometr' would cause confusion, as 'cm' denotes the centimeter.

==Writing Metric==
The rules of the SI system are defined in the [[International Standards Organization]] documents [[ISO 1000]] and [[ISO 31]]. They define not only the units, but the ways in which they are to be written.
* A space is to be put between the number and the unit. '25 km' is correct, '25km' is incorrect. This is a common mistake for users of English units, where no space is placed between the number and the unit.
* SI units do not take a trailing 's' to denote the plural. Thus '5 cms' is wrong and '5 cm' is correct. The reason is that 's' is the symbol for the second and 'cms' (intended to mean centimeters) could be confused with 'cm s' (meaning centimeter-seconds, a derived unit)
* SI symbols do not take a trailing period. (This would be appropriate if they were abbreviations, but they are not.)
* Since the SI symbols are symbols they are not altered to fit in with the surrounding text. The case of the symbol does not change - kelvin is always written as 'K' and kilograms is always written as 'kg'. Furthermore, they are never written in italics. Thus The woman lost 25 kg in weight is incorrect and should be The woman lost 25 kg in weight. Similarly, it is incorrect to alter the symbols to upper case (as often observed on shipping crates).

== Units of volume in the metric system ==
The liter was a unit of volume in the original 1795 definition of the metric system.It was defined as a cubic decimeter, i.e. a volume of 1/1000th of a cubic meter. However, the 1901 redefinition of the liter as the volume of 1 kg of water at the temperature when it takes its maximum density (3.98 °C) yields a a volume greater than a cubic decimeter by 28 parts per million. For everyday purposes this was not a problem, but for highly accurate scientific purposes it then became important to specify whether one actually meant a liter or cubic decimeter. The liter was thus not recommended for scientific purposes and technically became no longer part of the metric system. Officially, volume is measured in cubic meters and its multiples and submultiples, such as the cubic centimeter. The 1964 definition of the liter changed it back to exactly a cubic decimeter but technically it is a now a unit approved for use alongside the metric system but not part of it, alongside the minute, hour, year and others.

=== Metric and English Volume Units Compared ===
In the English system of weights and measures used in the USA, different units of volume are used for dry goods than for liquids. The Queen Anne gallon of 231 cubic inches is used for liquids and the Winchester gallon is the basis of the Winchester bushel of 2150.42 cubic inches. However in the metric system no distinction is made between units of volume used for dry goods and units of volume used for liquids. The cubic meter and its multiples and submultiples are used for all volumetric purposes. This is part of a general difference of approach between the two systems. The English system tends to use different measures for the same quantity depending on the context whereas the metric system uses the same measure. For example, in the English system pressure is measured in inches of mercury for weather, pounds per square inch for tire pressure and pounds per square foot for floor pressure. In the metric system these would be all measured in pascals or kilopascals.
==Lead Agency==
As scientific and engineering measurements become more accurate over time, the measurement standards they are compared against need to be continually refined. The National Institute for Science and Technology (NIST), based in Gaithersburg, Maryland, carries out world-class research in metrological science. NIST represents the United States in international committees on metrology.

== Reference ==
[http://www.bipm.org/en/si/si_brochure/ The official, definitive definition of the SI system, from the Bureau Internationale des Poids et Mesures]

[http://physics.nist.gov/Pubs/SP811/contents.full.html Guide to the SI System from NIST, the lead federal agency on all metrology issues for the US]

[http://www.sizes.com/units/SI.htm SI at Sizes.com]

== See Also ==
* [[Metric system]] This describes the original metric system as defined at its creation in 1795.

[[Category:Health]]
[[Category:Science]]
[[Category:Units of Measurement]]

Hydrogen

2008-07-22T00:17:14Z

Joldy0:

{{Element | name=Hydrogen | symbol=H | anumber=1 | amass=1.001 amu | noe=1 | class=Gas| cstructure=Unknown | color=None | }}
'''Hydrogen''' is the most abundant of all the [[element]]s,<ref>Hydrogen makes up roughly 75% of the matter in the [[universe]].</ref> and has the [[chemical symbol]] H and an [[atomic number]] of 1. Despite this abundance, naturally occurring elemental hydrogen is extremely rare on [[Earth]].

==Composition of the atom==
Hydrogen [[atom]]s normally consist of a single [[proton]] and [[electron]], with no [[neutron]]. Other [[isotopes]] are formed as the atom gains neutrons: [[deuterium]] (one neutron) and [[tritium]] (two neutrons). Tritium is [[radioactive]], with a [[half-life]] of approximately 12 years.

==Compounds==
Hydrogen can be found in a vast majority of [[organic]] compounds, as well as some [[inorganic]] compounds.<ref>For example, [[hydrocarbon]]s and metal hydrides, respectively</ref> It is an important component of [[water]] and most [[acid]]s.

==Fuel for vehicles==
Hydrogen is a principal component of [[fuel cell]]s, which have the potential to be a major form of alternative energy in the future. Fuel cells are very clean energy sources; their only by-products are [[water]] and heat. Since no [[pollutant]]s or [[greenhouse gas]]es are produced, the use of fuel cells could provide cleaner air and potentially slow down [[global warming]].

Unfortunately, hydrogen is not a viable fuel source at present. Today's average car, for example, would require an unfeasibly large fuel tank to carry enough hydrogen for practical purposes. Hydrogen is also extremely [[flammable]] and suitable safeguards are needed to reduce the chances of a fatal explosion in an accident.

If hydrogen could be used in cars, it would be important in establishing the [[hydrogen economy]].

==Notes and references==
<references/>

Atom

2008-07-21T23:55:58Z

Joldy0:

[[Image:Atoms1.jpg|thumb|right|Subatomic resolution of atoms by AFM]]
An '''atom''' is
a [[particle]] of [[matter]] indivisible by [[chemical]] means. <ref>[http://www.lbl.gov/abc/Glossary.html Glossary of Nuclear Terms] </ref>
The word atom comes from the Greek term for indivisible, ''átomos''.

===Structure===
Atoms are comprised of three subatomic particles: positively charged [[proton]]s, electrically neutral [[neutron]]s and negatively charged [[electron]]s. Protons and neutrons are comprised of quarks and are contained in close proximity in the center of an atom, forming the [[nucleus]]. Electrons inhabit the space around the nucleus, and are arranged around it in a series of layers, known as [[electron shell|shells]] or energy levels. Since protons and neutrons are approximately 2000 times as heavy as electrons, the vast majority of an atom's mass is found in the nucleus. Currently quarks and electrons are considered truly elementary particles, though neither are capable of being seen.

Those who understand electrical theory might notice that positively charged particles packed closely together would repel one another. The nucleus stays together because of what is known as the ''strong nuclear force''. The quantization of this force is a tiny particle called a "gluon".
===Atomic Number===
[[Image:Isotopes.jpg|right|thumb|Isotopes]]
Chemical elements are made up of atoms with certain properties. The number of protons in the nucleus of an atom (known as the [[atomic number]]) determine the properties of the atom, and the element it constitutes. For example, [[Hydrogen]] has one proton, and therefore an atomic number of 1. [[Oxygen]] has 8 protons in its nucleus and has an atomic number of 8. Under normal conditions, atoms contain an equal number of protons and electrons.

===Ions===

Atoms are normally electrically neutral; they have no charge. However, electrons in the [[valence shell]] can be gained or lost (depending on the element and the conditions) to form an [[ion]]. An atom that loses electrons becomes positively charged and is known as a cation. An atom that gains electrons electrons becomes negatively charged and is known as an anion.

Many common substances are made up of ions. For example, [[sodium chloride]] (NaCl), otherwise known as table salt, is made up of [[sodium cations]] (Na+) and [[chlorine]] anions (Cl-) in equal proportions. The negatively charged chlorine ions are attracted to the positively charged sodium ions, forming an [[ionic bond]]. This results in a lattice structure, which is responsible for sodium chloride being crystalline in its solid state.

===Isotopes===

Atoms of the same element that have different numbers of neutrons are known as [[isotope|isotopes]]. Some isotopes are more stable than others, and occur more often in nature, but there is no "standard" number of neutrons in a given element. The atomic weight of an element is a weighted average of the number of neutrons and protons (number of protons remains constant in a given element) in all naturally occurring isotopes. Many isotopes are [[radioactive]] and [[decay]] over time.
[[Category:Chemistry]]
[[Category:Physics]]

==References==
<references />