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A Cryophorus is a glass container containing liquid water and water vapor. It is used in physics courses to demonstrate rapid freezing by evaporation. A typical cryophorus has a bulb at one end connected to a tube of the same material. When the liquid water is manipulated into the bulbed end and the other end is submerged into liquid Nitrogen, the gas pressure drops as it is cooled. The liquid water begins to evaporate to produce more water vapor. Evaporation causes the water to cool rapidly to its freezing point and it solidfies suddenly.
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|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Cryophorus". A list of authors is available in Wikipedia.|