If the chemical sodium is dropped into water it will immediately and violently explode.
67
Your brain is 80% water.
525
The bark of an older redwood tree is fireproof.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The storage capacity of human brain exceeds 4 Terrabytes.
140
Neanderthal man had a brain capacity 100cc larger than modern man's.
50