Sean McCarthy says that no one was more sceptical than he when Steorn, his small hi-tech firm in Dublin, hit upon a way of generating clean, free and constant energy from the interaction of magnetic fields. 'It wasn't so much a Eureka moment as a get-back-in-there-and-check-your-instruments moment, although in far more colourful language,' said McCarthy. But when he attempted to share his findings, he says, scientists either put the phone down on him or refused to endorse him publicly in case they damaged their academic reputations. So last week he took out a full-page advert in the Economist magazine, challenging the scientific community to examine his technology.
