Airports that are at higher altitudes require a longer airstrip due to lower air density.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Hot water can freeze faster than cold water.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Out of all the senses, smell is most closely linked to memory.
146
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1