Sound travels about 4 times faster in water than in air.
408
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Nylon is made from coal and petroleum.
42
Scientists are now able to grow 'beating' heart tissue in a lab!
162
The average temperature at 40,000 feet above sea level is -60 F.
56
No matter how cold it gets, gasoline will not freeze.
107
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18