When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Pumice is the only rock that floats on water.
14
Out of all the senses, smell is most closely linked to memory.
146
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A cesium atom in an atomic clock beats over nine billion times a second.
43
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310