Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Each day, up to 150 species of life become extinct.
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Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Scientists are now able to grow 'beating' heart tissue in a lab!
162
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21