The only letter not appearing on the Periodic Table is the letter "J".
180
Your brain is 80% water.
525
Pumice is the only rock that floats on water.
14
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
The bark of an older redwood tree is fireproof.
65
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
One barrel of petroleum holds 42 gallons.
20