Iron weighs more after it rusts.
68
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
The bark of an older redwood tree is fireproof.
65
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
In zero gravity, a candle's flame is round and blue.
16
One 75-watt bulb gives more light than three 25-watt bulbs.
57
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114