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In Reply to: Re: Great story, John posted by morricab on February 28, 2007 at 04:39:06:
rw
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Well, I am a chemist :)
it bears repeating. Dr. Cooledge not only wrote for TAS from day one, but he has been a member of the Atlanta Symphony Chorus for about thirty years as a baritone. One of the Dayton-Wright panels required replacement. He had to first cut the outer diaphragm to gain access to the interior where the panels are located. After replacing the panel and resealing the outer diaphragm, he had to replace the SF6 gas. So...As you know as a chemist, SF6 is heavier than air. Exactly the opposite of helium in that regard. You can put it in a cup where it remains colorless, but you can feel it. JWC inhaled a bit and then sung a line from an opera. It sounded like Lurch at the Met! That was hilarious. :)
Cool! I have heard that people have tried that before but personally I have never played with SF6. I am glad most electrostats don't need it. I guess the panels were moisture sensitive or did it simply reduce the chance of arcing?
Electrical insulator to prevent arcing.
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