Nylon is made from coal and petroleum.
42
Iron weighs more after it rusts.
16
A cesium atom in an atomic clock beats over nine billion times a second.
43
Hot water can freeze faster than cold water.
181
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
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
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55