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nanometre wikipedia 417 captures 04 jan 2004 29 sep 2026 aug sep oct 23 2021 2022 2023 success fail about this capture timestamps the wayback machine http web archive org web 20220923235720 https en wikipedia org wiki nanometer nanometre from wikipedia the free encyclopedia redirected from nanometer jump to navigation jump to search this article is about the unit of length for semiconductor nodes see semiconductor device fabrication unit of length one nanometric carbon nanotube photographed with scanning tunneling microscope nanometre unit system si unit of length symbol nm conversions 1 nm in is equal to si units 1 10 9 m 1 10 3 pm natural units 6 1877 10 25 ℓ p 18 897 a 0 imperial us units 3 2808 10 9 ft 3 9370 10 8 in different lengths as in respect to the electromagnetic spectrum measured by the metre and its derived scales the nanometre is often used to express dimensions on an atomic scale and mostly in the molecular scale the nanometre international spelling as used by the international bureau of weights and measures si symbol nm or nanometer american spelling is a unit of length in the international system of units si equal to one billionth short scale of a metre 0 000 000 001 m and to 1000 picometres one nanometre can be expressed in scientific notation as 1 10 9 m and as 1 1 000 000 000 metres contents 1 history 2 etymology 3 usage 4 unicode 5 references 6 external links history edit the nanometre was formerly known as the millimicrometre or more commonly the millimicron for short since it is 1 1000 of a micron micrometre and was often denoted by the symbol mμ or more rarely and confusingly since it logically should refer to a millionth of a micron as μμ 1 2 3 etymology edit the name combines the si prefix nano from the ancient greek νάνος nanos dwarf with the parent unit name metre from greek μέτρον metrοn unit of measurement when used as a prefix for something other than a unit of measure as in nanoscience nano refers to nanotechnology or phenomena typically occurring on a scale of nanometres see nanoscopic scale 1 usage edit the nanometre is often used to express dimensions on an atomic scale the diameter of a helium atom for example is about 0 06 nm and that of a ribosome is about 20 nm the nanometre is also commonly used to specify the wavelength of electromagnetic radiation near the visible part of the spectrum visible light ranges from around 400 to 700 nm 4 the ångström which is equal to 0 1 nm was formerly used for these purposes since the late 1980s in usages such as the 32 nm and the 22 nm semiconductor node it has also been used to describe typical feature sizes in successive generations of the itrs roadmap for miniaturization in the semiconductor industry unicode edit the cjk compatibility block in unicode has the symbol u 339a square nm references edit a b svedberg the nichols j burton 1923 determination of the size and distribution of size of particle by centrifugal methods journal of the american chemical society 45 12 2910 2917 doi 10 1021 ja01665a016 svedberg the rinde herman 1924 the ulta centrifuge a new instrument for the determination of size and distribution of size of particle in amicroscopic colloids journal of the american chemical society 46 12 2677 2693 doi 10 1021 ja01677a011 terzaghi karl 1925 erdbaumechanik auf bodenphysikalischer grundlage vienna franz deuticke p 32 hewakuruppu y et al plasmonic pump probe method to study semi transparent nanofluids applied optics 52 24 6041 6050 external links edit look up nanometre in wiktionary the free dictionary near field mie scattering in optical trap nanometry v t e metric units of length by order of magnitude from smallest to largest left to right commonly used units shown in bold italics yoctometre ym 10 24 m zeptometre zm attometre am femtometre fermi fm picometre pm nanometre nm 10 9 m micrometre micron μm 10 6 m millimetre mm 1 1000 displaystyle tfrac 1 1000 m centimetre cm 1 100 displaystyle tfrac 1 100 m decimetre dm 1 10 displaystyle tfrac 1 10 m metre m decametre dam 10 m hectometre hm 100 m kilometre km 1000 m megametre mm 10 6 m gigametre gm terametre tm petametre pm exametre em zettametre zm yottametre ym 10 24 m retrieved from https en wikipedia org w index php title nanometre oldid 1106887921 categories metre hidden categories articles with short description short description matches wikidata articles containing ancient greek to 1453 language text navigation menu personal tools not logged in talk contributions create account log in namespaces article talk english views read edit view history more search navigation main page contents current events random article about wikipedia contact us donate contribute help learn to edit community portal recent changes upload file tools what links here related changes upload file special pages permanent link page information cite this page wikidata item print export download as pdf printable version languages afrikaans العربية aragonés asturianu azərbaycanca বাংলা bân lâm gú башҡортса български bosanski brezhoneg català чӑвашла cymraeg dansk الدارجة deutsch eesti ελληνικά emiliàn e rumagnòl español esperanto euskara فارسی français frysk galego 客家語 hak kâ ngî 한국어 հայերեն हिन्दी bahasa indonesia interlingua íslenska italiano עברית jawa қазақша kiswahili kurdî ລາວ latina latviešu македонски മലയാളം मराठी მარგალური bahasa melayu монгол nederlands 日本語 norsk bokmål norsk nynorsk oʻzbekcha ўзбекча پنجابی polski português română русский саха тыла shqip sicilianu simple english slovenčina slovenščina српски srpski srpskohrvatski српскохрватски svenska tagalog தமிழ் türkçe українська اردو vahcuengh tiếng việt winaray 吴语 粵語 中文 edit links this page was last edited on 27 august 2022 at 00 37 utc text is available under the creative commons attribution sharealike license 3 0 additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit 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