Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Sound travels fifteen times faster through steel than through air.
134
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Iron weighs more after it rusts.
68