The only letter not appearing on the Periodic Table is the letter "J".
180
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Iron weighs more after it rusts.
16
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
German chemists made a replica of a trophy the size of one molecule.
68
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
