A single speck of dust is half way in size between a subatomic particle and the Earth.
15
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
In zero gravity, a candle's flame is round and blue.
16
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
For every gallon of sea water, you get more than a quarter pound of salt.
45
Nearly 50% of the world's scientists are assigned to military projects.
71