Freeman Dyson
Freeman Dyson (1923–present), is an atomic scientist, mathematician, and inventor, best known today for his contributions to science fiction, and for his refinements to the bagless vacuum cleaner.
Dyson was born in England in 1923. He received an honorary doctorate from Bates College, in 1990. During World War II, Dyson flew for the RAF Bomber Command at Wyton. After the war, during the Eisenhower administration, he worked on Project Orion, a top-secret military project exploring the concept of nuclear flight, an idea which Dyson himself had proposed, in the 1960 science-fiction essay "Search for Artificial Stellar Sources of Infrared Radiation".
The Dyson sphere is one of the most interesting innovations to come out of England, in the past fifty years.