A cubic yard of air weighs about 2 pounds at sea level.
31
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Liquid TIDE laundry detergent glows under a blacklight.
96
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
The average home creates more pollution than does the average car.
33
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
If the chemical sodium is dropped into water it will immediately and violently explode.
67