One cubic foot of gold weighs more than 1,200 pounds!
78
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
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
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The only letter not appearing on the Periodic Table is the letter "J".
180
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21