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Oliphant's Visit To The United States

When there was no reaction from America to the reports of the MAUD Committee, Mark Oliphant crossed the Atlantic in an unheated bomber in August 1941. He found that Lyman Briggs had not circulated the reports to the Uranium Committee, but had kept them in a safe. Oliphant then contacted Ernest Lawrence, James Conant, Enrico Fermi and Arthur Compton and managed to increase the urgency of the American research programmes. The MAUD Reports finally made a big impression. Overnight the Americans changed their minds about the feasibility of an atomic bomb and suggested a cooperative effort with Britain. Harold C. Urey and George Braxton Pegram were sent to the UK in November 1941, to confer but Britain did not take up the offer of collaboration. The offer lapsed without any action being taken.

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