A cubic yard of air weighs about 2 pounds at sea level.
31
The force of a suction cup is calculated using F=AP.
15
Out of all the senses, smell is most closely linked to memory.
146
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
No matter how cold it gets, gasoline will not freeze.
107
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9