Scientists aren't sure what color dinosaurs were.
312
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
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Iron weighs more after it rusts.
16
Pumice is the only rock that floats on water.
14
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The average home creates more pollution than does the average car.
33