Nearly 50% of the world's scientists are assigned to military projects.
71
Pumice is the only rock that floats on water.
14
The average home creates more pollution than does the average car.
33
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Sound travels fifteen times faster through steel than through air.
134
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
German chemists made a replica of a trophy the size of one molecule.
68
