A cubic yard of air weighs about 2 pounds at sea level.
31
Cold water weighs more than hot water.
93
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
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Scientists are now able to grow 'beating' heart tissue in a lab!
162
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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