Page last updated at 16:05 GMT, Friday, 23 September 2011 17:05 UK

Physicist vows to 'eat shorts' over light speed claims

Professor Jim Al-Khalili, Professor of Theoretical Physics at the University of Surrey offers to "eat his shorts" live on TV if it is proven correct that subatomic particles called neutrinos have exceed the Universe's speed limit - the speed of light.

Watch Susan Watts' full report on the experiment results which are baffling scientists at Cern, home of the Large Hadron Collider, on Friday 23 September 2011 at 10.30pm on BBC Two.

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