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
One third of the electricity produced on earth is used to power electric light bulbs!
75
Hot water can freeze faster than cold water.
181
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
Pure water (H2O) does not conduct electricity on its own.
46
The sun is 330,330 times larger than the earth.
75
Each day, up to 150 species of life become extinct.
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