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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 janv. 1962 - first LED light
Description:
A light-emitting diode is a two-lead semiconductor light source. It is a p–n junction diode that emits light when activated created by Nick Holonyak
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By
Imani
24 août 2017
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717
Date:
1 janv. 1962
Maintenaint
~ Il y a 63 ans
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