A cubic yard of air weighs about 2 pounds at sea level.
31
Sound travels fifteen times faster through steel than through air.
134
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
German chemists made a replica of a trophy the size of one molecule.
68
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5