A cubic yard of air weighs about 2 pounds at sea level.
31
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
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Nearly 50% of the world's scientists are assigned to military projects.
71
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
A cesium atom in an atomic clock beats over nine billion times a second.
43