Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Each day, up to 150 species of life become extinct.
-23
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The force of a suction cup is calculated using F=AP.
15
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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