Research indicates that plants grow healthier when they are stroked.
173
Indoor pollution is 10 times more toxic than outdoor pollution.
62
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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Iron weighs more after it rusts.
16
The storage capacity of human brain exceeds 4 Terrabytes.
140