The force of a suction cup is calculated using F=AP.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Hot water can freeze faster than cold water.
181
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Most dust particles in your house are made from dead skin!
67
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
One barrel of petroleum holds 42 gallons.
20