Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound travels about 4 times faster in water than in air.
408
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
Research indicates that plants grow healthier when they are stroked.
173
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
For every gallon of sea water, you get more than a quarter pound of salt.
45