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 brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Iron weighs more after it rusts.
68
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Aluminum used to be more valuable than gold!
84