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Video: Poll for greatest invention

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 Search for greatest scientific breakthrough 
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Britain’s Science Museum is marking its centenary by displaying what it believes are the top ten most important inventions and discoveries in history.

The public are being asked to vote for their favourites in an online poll.

Shiulie Ghosh spoke to Trevor Baylis, inventor of the wind-up radio, about the exhibition and his favourite invention, the German V-2 rocket.

 
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