370. 과학 흥미자료
LED today NO led !
운암T
2018. 1. 6. 15:22
NEW Monster Be led's emission of near blue white lay !
it hurts mankind's healthiesssss ,
and some kind of plstic of semi filtering light into fragmentsssssss like crystalize within 2 years !
through the reflex veriety angle of lighs, very small top of needle . oooooops dangerous !
and more irrtables nose by smell , but no imeage , Becouse of other country's.
i hate national atguments .
the smell of LED's electirc sparks irrrrrrrrrrrrrrrrtables all most parmanently continous .
LED'lights ocure NEW PALLUTIONS on this earth, you are.