Sound travels about 4 times faster in water than in air.
408
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
The average home creates more pollution than does the average car.
33
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
Sound at the right vibration can bore holes through a solid object.
134
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118