First drawing of reflection of light. Named after astronomer Willebrord Snellius(1580), first accurately described by Ibn Sahl in c. 984.pic.twitter.com/jID2mVVAmh
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First drawing of reflection of light. Named after astronomer Willebrord Snellius(1580), first accurately described by Ibn Sahl in c. 984.pic.twitter.com/jID2mVVAmh
where was all this great stuff when I was in grade school. Love it!
Whaaattt....
not total tho' . Isn't there a loss out of the tube that makes it visible to us?
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