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Topic: Supercooling

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	Info and facts on 'Supercooling' (Site not responding. Last check: 2007-10-08)
		Supercooling is the process of chilling a liquid (A substance that is liquid at room temperature and pressure) below its freezing point (The temperature below which a liquid turns into a solid), without it becoming solid (A three-dimensional shape).
		Water has a melting point of 0°C; its dynamic arrest point is -39°C. Droplets of supercooled water often exist in stratiform and cumulus cloud (A visible mass of water or ice particles suspended at a considerable altitude) s.
		They form into ice (Water frozen in the solid state) when they are struck by the wings of passing airplane (An aircraft that has a fixed wing and is powered by propellers or jets) s and abruptly crystallize.
	www.absoluteastronomy.com /encyclopedia/s/su/supercooling.htm (203 words)

	Articles - Supercooling (Site not responding. Last check: 2007-10-08)
		Supercooling is the process of chilling a liquid below its freezing point, without it becoming solid.
		Droplets of supercooled water often exist in stratiform and cumulus clouds.
		The heat is released on solidification, which is triggered by flexing a (patented[4]) small flat disc of notched ferrous metal which releases very tiny adhered crystals of sodium acetate [5] into the solution which then act as nucleation sites for the recrystallization of the remainder of the salt solution.
	www.cbasket.com /articles/Supercooling (384 words)

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