Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Pumice is the only rock that floats on water.
14
4.5 pounds of sunlight strike the Earth each day.
27
Sound at the right vibration can bore holes through a solid object.
134
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108