In zero gravity, a candle's flame is round and blue.
16
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 only letter not appearing on the Periodic Table is the letter "J".
180
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
According to studies, men change their minds two to three times more often than women.
72
Hot water can freeze faster than cold water.
182
Sound travels fifteen times faster through steel than through air.
134
Pumice is the only rock that floats on water.
14