The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The only letter not appearing on the Periodic Table is the letter "J".
180
Balsa wood is classified as a hard wood!
41
Each day, up to 150 species of life become extinct.
-23
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The average temperature at 40,000 feet above sea level is -60 F.
56
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75