Cryophorus

Cryophorus
A diagram of a cryophorus showing water evaporating from the left bulb and condensing and freezing in the right bulb.

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, producing more water vapor. Evaporation causes the water to cool rapidly to its freezing point and it solidifies suddenly.

History

The cryophorus was first described by William Hyde Wollaston in an 1811 paper titled, "On a method of freezing at a distance."[1][2]

Further reading

References

  1. ^ Wollaston, William Hyde (1813). "On a Method of Freezing at a Distance". Philosophical Transactions of the Royal Society of London 103: 71 74. doi:10.1098/rstl.1813.0010. JSTOR 107389. 
  2. ^ "William Hyde Wollaston", Encyclopaedia Britannica, 11th Edition, 1911

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  • cryophorus — cry*oph o*rus (kr[ i]*[o^]f [ o]*r[u^]s), n. [NL., fr. Gr. kry os icy cold, frost + fe rein to bear.] (Chem.) An instrument used to illustrate the freezing of water by its own evaporation. The ordinary form consists of two glass bulbs, connected… …   The Collaborative International Dictionary of English

  • cryophorus — cry·oph·o·rus …   English syllables

  • cryophorus —   n. instrument demonstrating freezing of water by its evaporation.    ♦ cryophoric, a …   Dictionary of difficult words

  • cryophorus — krīˈäfərəs noun ( es) Etymology: New Latin, from cry + phorus phore : an instrument that illustrates the freezing of water by its own evaporation …   Useful english dictionary

  • Black frost — Frost Frost (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre[ o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See {Freeze}, v. i.] 1. The act of freezing; applied chiefly to the congelation of… …   The Collaborative International Dictionary of English

  • Frost — (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre[ o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See {Freeze}, v. i.] 1. The act of freezing; applied chiefly to the congelation of water;… …   The Collaborative International Dictionary of English

  • Frost bearer — Frost Frost (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre[ o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See {Freeze}, v. i.] 1. The act of freezing; applied chiefly to the congelation of… …   The Collaborative International Dictionary of English

  • Frost grape — Frost Frost (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre[ o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See {Freeze}, v. i.] 1. The act of freezing; applied chiefly to the congelation of… …   The Collaborative International Dictionary of English

  • Frost lamp — Frost Frost (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre[ o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See {Freeze}, v. i.] 1. The act of freezing; applied chiefly to the congelation of… …   The Collaborative International Dictionary of English

  • Frost nail — Frost Frost (fr[o^]st; 115), n. [OE. frost, forst, AS. forst, frost. fr. fre[ o]san to freeze; akin to D. varst, G., OHG., Icel., Dan., & Sw. frost. [root]18. See {Freeze}, v. i.] 1. The act of freezing; applied chiefly to the congelation of… …   The Collaborative International Dictionary of English

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