25-09-2003, 22:52
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#24
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Resting in Peace
Join Date: Jan 2004
Location: Accrington
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Re: Silly sayings
[quote author=happyone link=board=anything;num=1064387900;start=0#11 date=09/25/03 at 13:53:17]this is not a saying just wouls like some to explane to me if u put somthing cold in a flask it stays cold if u put somthing hot in there it stays hot ( HOW DOES IT KNOW IF ITS HOT OR COLD )?
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This has to do with thermodinamics and the reflective serface of the conical shape of the flask.and the vacuam between the inside wall and outside wall .
look inside a flask what do you see ??? a very highly polished surface this along with the vacuam reflect heat back into the liquid so keeping it hot or cold ;D
if the liquid is cold then the vacuam between the inside wall and the outside wall keeps the liquid cold stopping heat getting in so raiseing the tempeter of the viscose fuid inside
it also keeps the elasticity of the liquid the same
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