Diamonds can be shattered with a hammer.
-104
Iron weighs more after it rusts.
68
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 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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55