The bark of an older redwood tree is fireproof.
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
If the chemical sodium is dropped into water it will immediately and violently explode.
67
For every gallon of sea water, you get more than a quarter pound of salt.
45
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The storage capacity of human brain exceeds 4 Terrabytes.
140