Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Pure water (H2O) does not conduct electricity on its own.
46
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
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One barrel of petroleum holds 42 gallons.
20
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
According to studies, men change their minds two to three times more often than women.
72
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310