Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A cubic yard of air weighs about 2 pounds at sea level.
31
4.5 pounds of sunlight strike the Earth each day.
27
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
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
Sound travels fifteen times faster through steel than through air.
134