Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Sound travels fifteen times faster through steel than through air.
134
The sun is 330,330 times larger than the earth.
75
Sound at the right vibration can bore holes through a solid object.
134
No matter how cold it gets, gasoline will not freeze.
107
Iron weighs more after it rusts.
16
Scientists are now able to grow 'beating' heart tissue in a lab!
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