In the early 1970s mathematician Donald Knuth spent a sabbatical with his wife in Norway. The time was meant to be spent relaxing. Yet one night he woke up his partner in a state of agitation. He ...

It all started one summer lunchtime in 1992 on the terrace outside the CERN cafeteria. If you had happened to be there at the physics research lab near Geneva at the time, you might have overheard ...