One third of the electricity produced on earth is used to power electric light bulbs!
75
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Cold water weighs more than hot water.
93
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
According to studies, men change their minds two to three times more often than women.
72
The bark of an older redwood tree is fireproof.
65
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13