Pumice is the only rock that floats on water.
14
A ball of glass will bounce higher than a ball made of rubber.
73
A cesium atom in an atomic clock beats over nine billion times a second.
43
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
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
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
Nearly 50% of the world's scientists are assigned to military projects.
71