Dyne
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2008-07-15T15:53:05Z
140.196.24.2
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{{redirect|Dynes|the president of the University of California system|Robert C. Dynes}}
In [[physics]], the '''dyne''' (symbol "dyn", from Greek δύναμις (''dynamis'') meaning power, force) is a [[Units of measurement|unit]] of [[Force (physics)|force]] specified in the ''[[Centimetre gram second system of units|centimetre-gram-second]]'' (CGS) [[system of units]], a predecessor of the modern [[International System of Units|SI]]. One dyne is equal to exactly 10 micro[[newton]]s. Further, the dyne can be defined as "the force required to accelerate a [[mass]] of one [[gram]] at a rate of one [[centimetre]] per [[second]] squared".
; 1 dyn = 1 g·cm/s² = 10<sup>−5</sup> kg·m/s² = 10 µN
The '''dyne per centimetre''' is the unit usually associated with measuring [[surface tension]]. For example, the surface tension of distilled water is 72 dyn/cm at 25°C (77°F).<ref>http://www.dow.com/PublishedLiterature/dh_00e5/09002f13800e5fdb.pdf?filepath=/PublishToInternet/InternetDOWCOM/surfactants/pdfs/noreg/119-01514.pdf&fromPage=BasicSearch</ref>
{{Units of force}}
{{Wikisource1914NSRW|Dyne}}
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