LONDON, ENGLAND - NOVEMBER 04:  Secretary of State for Culture, Media and Sport, Ben Bradshaw speaks before a photocall at the Science Museum on November 4, 2009 in London, England. The Science museum is celebrating 100 years of science where the X-RAY machine has been voted the most important invention as voted for by the public. Getty Images logo Getty Images 1 month ago

LONDON, ENGLAND - NOVEMBER 04: Secretary of State for Culture, Media and Sport, Ben Bradshaw speaks before a photocall at the Science Museum on November 4, 2009 in London, England. The Science museum is celebrating 100 years of science where the X-RAY machine has been voted the most important invention as voted for by the public.