Nylon is made from coal and petroleum.
42
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
One ragweed plant can release as many as one billion grains of pollen!
51
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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