When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
In zero gravity, a candle's flame is round and blue.
16
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Your brain is 80% water.
525
The average home creates more pollution than does the average car.
33
Billions of neutrinos pass unnoticed through your body every second.
6