We asked Cheltenham Science Festival goers what burning science question they wanted answered and YOU voted for your favourite one! Links YOUR .\r
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James May tells us which accent he finds the sexiest! And admits he practices slang in the mirror - Awesomesauce!\r
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James May figures out why we are so afraid of heights Acrophobia linked to vertical perception: .\r
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James rambles about barcodes and supermarkets before unleashing his perfect Jeremy Clarkson impression! How do barcodes work?\r
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James May grasps the giggles for YouTube Comedy Week. Curator of very bad dad jokes, James May explains why we laugh. Watch more YouTube Comedy .