Scientists power mobile phone with urine 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. Google competition plan 'not enough' Radiohead singer pulls Spotify music PayPal in $92 quadrillion error Pee harnessed for mobile phone power