RT @PhysicsVideo_: Diffractive Optical Element https://t.co/V7AWdhtCb3 - The Calculator Guide from Twitter

Diffractive Optical Element pic.twitter.com/V7AWdhtCb3

— Physics Fun (@PhysicsVideo_) August 8, 2018

from Twitter https://twitter.com/GuideCalculator

August 08, 2018 at 05:51PM
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