Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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The sun is 330,330 times larger than the earth.
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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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
German chemists made a replica of a trophy the size of one molecule.
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