Centimetre: Difference between revisions
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Stepho-wrs (talk | contribs) Revert. Your change is effectively saying that the "cm" symbol only applies to the American spelling. |
I changed it so that people can elaborate more on centimeters. Tags: Reverted references removed |
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[[file:EM Spectrum Properties edit.svg|thumb|330px|Different lengths as in respect to the [[Electromagnetic spectrum]], measured by the Metre and its deriveds scales. The [[Microwave]] are in-between 1 meter to 1 millimeter.]] |
[[file:EM Spectrum Properties edit.svg|thumb|330px|Different lengths as in respect to the [[Electromagnetic spectrum]], measured by the Metre and its deriveds scales. The [[Microwave]] are in-between 1 meter to 1 millimeter.]] |
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Come on man, Im in class right now and your using wikipedia to find centimeter info? Just dissapointing that you came all this way in life and your looking at centimeter history. This is just sad, so pick yourself up and go out and use ANYTHING other than wikipedia. Also why the heck would you need the definition and info on centimeter look up something better. |
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A '''centimetre''' (international spelling) or '''centimeter''' (American spelling) (SI symbol '''cm''') is a [[Units of measurement|unit]] of [[length]] in the [[International System of Units]] (SI), equal to one hundredth of a [[metre]], ''centi'' being the [[SI prefix]] for a factor of {{sfrac|100}}.<ref>{{cite web |url=http://www.bipm.org/en/publications/si-brochure/chapter3.html |title=Decimal multiples and submultiples of SI units |publisher=Bureau International des Poids et Mesures |year=2014 |access-date=5 July 2015}}</ref> Equivalently, there are 100 centimetres in 1 metre. The centimetre was the base unit of length in the now deprecated [[Centimetre–gram–second system of units|centimetre–gram–second]] (CGS) system of units. |
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Though for many physical quantities, [[SI prefix]]es for factors of 10<sup>3</sup>—like ''milli-'' and ''kilo-''—are often preferred by technicians, the centimetre remains a practical unit of length for many everyday measurements. A centimetre is approximately the width of the fingernail of an average adult person. |
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==Equivalence to other units of length== |
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:{| |
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|rowspan=4 valign=top|1 centimetre |
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|= 10 [[millimetre]]s |
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|= 0.01 metres |
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|= 0.<span style="text-decoration: overline;">393700787401574803149606299212598425196850</span> [[inch]]es |
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| (There are ''exactly'' 2.54 centimetres in one inch.) |
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One [[litre|millilitre]] is defined as one cubic centimetre, under the [[SI]] system of units. |
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==Other uses== |
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In addition to its use in the measurement of [[length]], the centimetre is used: |
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* sometimes, to report the level of rainfall as measured by a [[rain gauge]]<ref>{{Cite web|url=https://www.weathershack.com/enwiki/static/ed-rain-measurement.html|title=Rain Measurement|website=www.weathershack.com}}</ref> |
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* in the [[Centimetre gram second system of units|CGS system]], the centimetre is used to measure [[capacitance]], where 1 cm of capacitance = {{val|1.113|e=-12}} [[farad]]s<ref>{{Cite web|url=https://scienceworld.wolfram.com/physics/Capacitance.html|title=Capacitance -- from Eric Weisstein's World of Physics|first=Eric W.|last=Weisstein|website=scienceworld.wolfram.com}}</ref> |
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* in maps, centimetres are used to make conversions from map scale to real world scale (kilometres) |
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* to represent second moment of areas (cm<sup>4</sup>) |
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* as the inverse of the [[kayser (unit)|Kayser]], a CGS unit, and thus a non-SI metric unit of [[wavenumber]]: 1 kayser = 1 wave per centimetre; or, more generally, (wavenumber in kaysers) = 1/([[wavelength]] in centimetres). The SI unit of wavenumber is the inverse metre, m<sup>−1</sup>. |
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==Unicode symbols== |
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For the purposes of compatibility with [[Chinese language|Chinese]], [[Japanese language|Japanese]] and [[Korea]]n ([[CJK]]) characters, [[Unicode]] has symbols for:<ref>[https://www.unicode.org/charts/PDF/U3300.pdf CJK Compatibility excerpt] from The Unicode Standard, Version 10.0.</ref> |
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* centimetre – {{unichar|339D|SQUARE CM}} |
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* square centimetre – {{unichar|33A0|SQUARE CM SQUARED}} |
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* cubic centimetre – {{unichar|33A4|SQUARE CM CUBED}} |
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They are mostly used only with East Asian fixed-width [[CJK]] fonts, because they are equal in size to one Chinese character. |
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==See also== |
==See also== |
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*[[Conversion of units]] |
*[[Conversion of units]] |
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Revision as of 15:41, 23 May 2023
| centimetre | |
|---|---|
 A carpenter's ruler with centimetre divisions | |
| General information | |
| Unit system | SI |
| Unit of | length |
| Symbol | cm |
| Conversions | |
| 1 cm in ... | ... is equal to ... |
| millimetres | 10 mm |
| imperial & US system | ~0.3937 in |
Look up centimetre in Wiktionary, the free dictionary.
Come on man, Im in class right now and your using wikipedia to find centimeter info? Just dissapointing that you came all this way in life and your looking at centimeter history. This is just sad, so pick yourself up and go out and use ANYTHING other than wikipedia. Also why the heck would you need the definition and info on centimeter look up something better.
See also
References
| International | |
|---|---|
| National | |
