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Dangers of Silvering Mirrors

Dangers of Silvering Mirrors
ABOUT A YEAR ago in this department we referred to the risk of explosion of the silvering solution used in silvering the mirrors of reflecting telescopes, and requested any who had heard of such explosions to advise us. Although several thousands of our readers have silvered mirrors-many of them a number (!) of times (soft music here), we have heard of practically no accidents among amateurs, though professionals appear to have them. Subsequently a few reports of this nature reached us and these are published below. At worst, assuming the exercise of normal gumption in the work, they indicate the probable advisability of wearing goggles during the operation after the solutions have been mixed. It will be noted that most of the troubles came from failure to "obey the rules." As one man stated orally, he "silvered first and read the warning after the explosion." The chief warning is not to leave the solution standing --not to shake up a stock solution to keep around. A minor one is to play safe by keeping the solutions cool.

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Dangers of Silvering Mirrors
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