infinite free-energy ruse from a rented art gallery in London, Steorn's business model becomes clear: get people talking about your name (no press is bad press, as they say) and then use that brand recognition to sell some crap. Meet the €289 (that's $400 mister) USB Hall Probe that turns your $1,000 PC into a $40 magnetometer. It's for "Hobbyist and educational experimentation scenarios," they say with a straight face. Look, we have no idea if this performs any better than the cheap hand-held gaussmeters available on-line. But considering the source, we can only offer an educated guess.