The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
The only letter not appearing on the Periodic Table is the letter "J".
180
A cesium atom in an atomic clock beats over nine billion times a second.
43
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
A single speck of dust is half way in size between a subatomic particle and the Earth.
15