The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Your brain is 80% water.
525
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39