Sound travels about 4 times faster in water than in air.
408
According to studies, men change their minds two to three times more often than women.
72
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
Most dust particles in your house are made from dead skin!
67
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Research indicates that plants grow healthier when they are stroked.
173
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13