11-29-2021, 04:56 PM
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#7
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Senior Member
Join Date: Sep 2019
Location: Fort Gratiot, Michigan
Posts: 2,296
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Re: Safety or not
Quote:
Originally Posted by Utopia Texas
Hold a burning match or lighter next to the glass. Reflection of one flame is single pane glass and a reflection of two flames is double pane glass.
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Very ingenious !
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