Pumice is the only rock that floats on water.
14
Scientists in Germany have developed a candy that doesn't cause cavities.
11
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Indoor pollution is 10 times more toxic than outdoor pollution.
62
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
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Nylon is made from coal and petroleum.
42
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