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Lumen

The lumen, abbreviation lm, is the SI derived unit of luminous flux. It is the amount of light that falls on a unit area at unit distance from a source of one candela.


Lumen is also the name of Asteroid 141.



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Dennis Gabor

... Gabor - Wikipedia <<Up     Contents Dennis Gabor Dennis Gabor (Gábor Dénes) (1900-1979) was a Hungarian physicist. He invented holography in ...

 
 
 
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