At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Nylon is made from coal and petroleum.
42
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Nearly 50% of the world's scientists are assigned to military projects.
71
A cesium atom in an atomic clock beats over nine billion times a second.
43
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Brass doorknobs automatically disinfect themselves in about 8 hours.
18