Balsa wood is classified as a hard wood!
41
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
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155