A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Pure water (H2O) does not conduct electricity on its own.
46
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
For every gallon of sea water, you get more than a quarter pound of salt.
45
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11