Iron weighs more after it rusts.
68
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Nearly 50% of the world's scientists are assigned to military projects.
71
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
One barrel of petroleum holds 42 gallons.
20
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
If the chemical sodium is dropped into water it will immediately and violently explode.
67