A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Your brain is 80% water.
525
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The only letter not appearing on the Periodic Table is the letter "J".
180