The force of a suction cup is calculated using F=AP.
15
Iron weighs more after it rusts.
68
For every gallon of sea water, you get more than a quarter pound of salt.
45
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
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
A single speck of dust is half way in size between a subatomic particle and the Earth.
15