The average temperature at 40,000 feet above sea level is -60 F.
56
Nearly 50% of the world's scientists are assigned to military projects.
71
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
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Sound travels about 4 times faster in water than in air.
408
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Aluminum used to be more valuable than gold!
84
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199