When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Most dust particles in your house are made from dead skin!
67
The force of a suction cup is calculated using F=AP.
15
In zero gravity, a candle's flame is round and blue.
16
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