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 Re: Vintage mouthpiece "care"
Author: Michael E. Shultz 
Date:   2023-02-19 15:42

Fluorescent lights do emit UV-A radiation, especially where there are flaws in the phosphor coating. Glass blocks UV-B and UV-C radiation. Polycarbonate blocks UV-A radiation. I used to demonstrate this at work by shining the 365 nm black light through the glass door of the incubator. The water samples would fluoresce, but when I put my polycarbonate glasses in front of the UV light, they would not fluoresce. UV light causes degradation of many materials. That's why art museums are careful about UV light exposure on the exhibits.

"Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read."
Groucho Marx
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 Topics Author  Date
 Vintage mouthpiece "care"  new
kchan 2023-02-19 03:26 
 Re: Vintage mouthpiece "care"  new
kdk 2023-02-19 07:41 
 Re: Vintage mouthpiece "care"  new
kchan 2023-02-19 10:55 
 Re: Vintage mouthpiece "care"  new
sonicbang 2023-02-19 14:12 
 Re: Vintage mouthpiece "care"  
Michael E. Shultz 2023-02-19 15:42 
 Re: Vintage mouthpiece "care"  new
kdk 2023-02-19 18:21 
 Re: Vintage mouthpiece "care"  new
Michael E. Shultz 2023-02-20 15:37 
 Re: Vintage mouthpiece "care"  new
Djudy 2023-02-21 16:43 
 Re: Vintage mouthpiece "care"  new
kdk 2023-02-21 18:29 
 Re: Vintage mouthpiece "care"  new
Djudy 2023-02-21 21:51 
 Re: Vintage mouthpiece "care"  new
kdk 2023-02-21 23:18 
 Re: Vintage mouthpiece "care"  new
Djudy 2023-02-21 16:47 
 Re: Vintage mouthpiece "care"  new
Paul Aviles 2023-02-21 22:51 
 Re: Vintage mouthpiece "care"  new
Pokenerd 2023-02-23 04:57 
 Re: Vintage mouthpiece "care"  new
Paul Aviles 2023-02-23 06:35 
 Re: Vintage mouthpiece "care"  new
Chris Sereque 2023-02-26 10:16 
 Re: Vintage mouthpiece "care"  new
Djudy 2023-02-26 18:24 
 Re: Vintage mouthpiece "care"  new
Julian ibiza 2023-02-26 13:59 
 Re: Vintage mouthpiece "care"  new
Michael E. Shultz 2023-02-26 15:22 
 Re: Vintage mouthpiece "care"  new
Julian ibiza 2023-02-27 00:34 


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