For every gallon of sea water, you get more than a quarter pound of salt.
45
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
Pure water (H2O) does not conduct electricity on its own.
46
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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Aluminum used to be more valuable than gold!
84
A cesium atom in an atomic clock beats over nine billion times a second.
43
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155