The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Liquid TIDE laundry detergent glows under a blacklight.
96
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Neanderthal man had a brain capacity 100cc larger than modern man's.
50