One third of the electricity produced on earth is used to power electric light bulbs!
75
Most dust particles in your house come from dead skin.
48
Cold water weighs more than hot water.
93
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Out of all the senses, smell is most closely linked to memory.
146
Sound at the right vibration can bore holes through a solid object.
134
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199