Iron weighs more after it rusts.
68
German chemists made a replica of a trophy the size of one molecule.
68
Aluminum used to be more valuable than gold!
84
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
One third of the electricity produced on earth is used to power electric light bulbs!
75
Nearly 50% of the world's scientists are assigned to military projects.
71