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Scientists power mobile phone with urine

19 July 2013 Last updated at 11:06 BST

Google has not done enough to address concerns it is unfairly stifling competition, according to an EU official. The company has made several proposals to change the way it displays some results to address the worries, but the European Commission competition chief says he wants the search giant to go further.

PayPal, an online payments broker, has admitted it mistakenly credited a man with $92 quadrillion (£60 quadrillion). The company quickly recognised the error and returned the customer's account to zero.

And scientists have successfully used human urine to charge a mobile phone.

BBC Click's Spencer Kelly looks at these and other tech news stories.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.

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