The only letter not appearing on the Periodic Table is the letter "J".
180
Diamonds can be shattered with a hammer.
-104
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Your brain is 80% water.
525
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51