In zero gravity, a candle's flame is round and blue.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Your brain is 80% water.
525
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
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