Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Nylon is made from coal and petroleum.
42
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Research indicates that plants grow healthier when they are stroked.
173
The average temperature at 40,000 feet above sea level is -60 F.
56
The bark of an older redwood tree is fireproof.
65
Cold water weighs more than hot water.
93