Awarded for research on whether it is better to be smashed over the head with a full beer bottle or an empty one

Mathematics prize

Awarded to Gideon Gono, governor of Zimbabwe's Reserve Bank, for giving people a simple way of dealing with a wide range of numbers. Gono ordered his bank to print notes with denominations ranging from one cent to one hundred trillion dollars.

To Donald Unger, a doctor in Thousand Oaks, California, who cracked the knuckles of his left hand, but never those on his right, every day for 60 years to investigate whether it caused arthritis. Unger, now 83, told the Guardian: "After 60 years, I looked at my knuckles and there's not the slightest sign of arthritis. I looked up to the heavens and said: 'Mother, you were wrong, you were wrong, you were wrong.' "