A single speck of dust is half way in size between a subatomic particle and the Earth.
15
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists are now able to grow 'beating' heart tissue in a lab!
162
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
In zero gravity, a candle's flame is round and blue.
16