Ever since the middle ages, pieces of the True Cross have been sold to the gullible. But now the trade in bogus relics has moved online, to the fury of traditional Catholics. Show more
'Memory athletes' compete to see who can remember the most random numbers. Everyone thought we were at the limits of the possible - until some teenage North Korean girls turned up Show more
Advertisers would love to find a "buy button" in our brains, which when pressed would make us buy their stuff. A new breed of "neuromarketers" are offering just that. Does it work? Show more
