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To: bitt

I’m surprised that 222nm UV can penetrate 8’ of air.


12 posted on 09/23/2020 11:17:39 AM PDT by null and void (Democrats donate to bail money. Republicans donate to scholarships. ~ throwthebumsout)
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To: null and void

Have you never used an ultraviolet flashlight? Deer hunters use them all the time to find blood trails.


14 posted on 09/23/2020 2:09:55 PM PDT by backwoods-engineer (But what do I know? I'm just a backwoods engineer.)
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