Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A cubic yard of air weighs about 2 pounds at sea level.
31
The average temperature at 40,000 feet above sea level is -60 F.
56
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Aluminum used to be more valuable than gold!
84
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116