Pumice is the only rock that floats on water.
14
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Sound at the right vibration can bore holes through a solid object.
134
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
In zero gravity, a candle's flame is round and blue.
16
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Out of all the senses, smell is most closely linked to memory.
146