Owen Louis definitely knows his onions when it comes to environmental friendliness - he sticks his iPod in them. The music fan is so worried about the amount of electricity his MP3 player uses, he powers it up using the vegetables. Owen, 21, bores two holes in an onion, soaks it in an energy drink then sticks a USB cable into it - and can charge his iPod for an hour. 'I was watching TV with my laptop on and my iPod playing and thought, "How much electricity must I be using?",' he said. 'A friend showed me the experiment as a laugh but I thought it was the greatest thing I have ever seen, and do it religiously every day.' Owen, from Portsmouth, said the idea was a foolproof way of staying green as the onion decomposes and the drink bottle can be recycled once finished with. Phil Stubbles, a physics lecturer from St Vincent College in Gosport, Hampshire, said almost all vegetables could power iPods because they contain ions which react with energy drinks to create a charge. 'The only problem is you have no control over how long it may work for ... and it can be smelly,' he added.
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