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
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Sound travels about 4 times faster in water than in air.
408
Aluminum used to be more valuable than gold!
84
No matter how cold it gets, gasoline will not freeze.
107
A cubic yard of air weighs about 2 pounds at sea level.
31