4.5 pounds of sunlight strike the Earth each day.
27
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
For every gallon of sea water, you get more than a quarter pound of salt.
45
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
If the chemical sodium is dropped into water it will immediately and violently explode.
67