B
Bill Sloman
Guest
On Tuesday, January 21, 2020 at 8:22:50 PM UTC+11, piglet wrote:
We could declare them illegal, but they wouldn't pay any attention.
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Bill Sloman, Sydney
On 21/01/2020 6:07 am, Robert Baer wrote:
piglet wrote:
On 19/01/2020 2:32 am, Sylvia Else wrote:
The main issue I had with them was their tendency to take longer and
longer to reach maximum brightness as they aged. I think this was
more due to excessive economy in the electrolytic capacitors used in
their manufacture rather than an inherent limitation.
Sometimes the electrolytic is just fine and the problem is mercury
vapor loss due to combining with electrodes or phosphor poisoning. Gas
mixture and phosphor quality varied a lot between manufacturers.
 Isn't mercury banned,and illegal?
Undesirable certainly and with many legal restrictions but the word
"illegal" is possibly inaccurate.
Dentists are still placing mercury amalgam fillings. One of the biggest
causes of mercury release is burning coal with traces of mercury ore
embedded. But volcanoes do that too - should we declare volcanoes illegal?
We could declare them illegal, but they wouldn't pay any attention.
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Bill Sloman, Sydney