At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Nylon is made from coal and petroleum.
42
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
German chemists made a replica of a trophy the size of one molecule.
68