Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
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
A cesium atom in an atomic clock beats over nine billion times a second.
43
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The force of a suction cup is calculated using F=AP.
15