The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The sun is 330,330 times larger than the earth.
75
The storage capacity of human brain exceeds 4 Terrabytes.
140
One ragweed plant can release as many as one billion grains of pollen!
51
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75