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
For every gallon of sea water, you get more than a quarter pound of salt.
45
Pure water (H2O) does not conduct electricity on its own.
46
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Scientists in Germany have developed a candy that doesn't cause cavities.
11
The earth is approx. 6,588,000,000,000,000,000 tons.
175
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310