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Filling outside of Flask with some sort of insulation

https://ops-normal.org/viewtopic.php?f=4&t=254

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Re: Filling outside of Flask with some sort of insulation

Posted: Fri Nov 27, 2015 10:53 am
by Capetonian
I have a Thermos flask and I am told it keeps hot things hot and cold things cold.
I'm still trying to work out how it knows which to do.

Re: Filling outside of Flask with some sort of insulation

Posted: Fri Nov 27, 2015 12:00 pm
by Lon
do try to keep up Cape :D
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