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 bark of an older redwood tree is fireproof.
65
Sound travels about 4 times faster in water than in air.
408
The average home creates more pollution than does the average car.
33
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
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