Your brain is 80% water.
525
Pure water (H2O) does not conduct electricity on its own.
46
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Out of all the senses, smell is most closely linked to memory.
146
In zero gravity, a candle's flame is round and blue.
16
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
A single speck of dust is half way in size between a subatomic particle and the Earth.
15