The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The storage capacity of human brain exceeds 4 Terrabytes.
140
One 75-watt bulb gives more light than three 25-watt bulbs.
57
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
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
Diamonds can be shattered with a hammer.
-104