"मिटर" का संशोधनहरू बिचको अन्तर

'''मिटर''' अन्तर्राष्ट्रिय मापन प्रणालीमा (SI) लम्बाइको आधारभुत एकाई हो। पहिला समुद्री सतहमा [[भूमध्य रेखा]]देखि उत्तरी ध्रुबसम्मको लम्वाईको एक करोडौं भागलाई एक मिटर भनिन्थ्यो।<ref>{{cite book |title=Physics for Scientists and Engineers |publisher=W.H. Freeman |isbn=0716783398 |edition=5th |last1=Tipler |first=Paul A. |last2=Mosca |first2=Gene |page=3|year=2004 }}</ref><ref>('decimalization is not of the essence of the metric system; the real significance of this is that it was the first great attempt to define terrestrial units of measure in terms of an unvarying astronomical or geodetic constant.) The metre was in fact defined as one ten-millionth of one-quarter of the [[earth's circumference]] at sea-level.' [[Joseph Needham]], ''[[Science and Civilisation in China]]'', Cambridge University Press, 1962 vol.4, pt.1, p.42.</ref><ref>{{cite book|url=https://books.google.com/books?id=Yr6lLFUC2ggC|title=Il senso della misura: la codifica della realtà tra filosofia, scienza ed esistenza umana|last=Agnoli|first=Paolo|date=2004|publisher=Armando Editore|isbn=9788883585326|pages=93–94,101|language=it|access-date=13 October 2015}}</ref><ref>{{cite book|url=http://gallica.bnf.fr/ark:/12148/bpt6k571270/f1.image|title=Rapport sur le choix d'une unité de mesure, lu à l'Académie des sciences, le 19 mars 1791|date=15 October 2007|publisher=Gallica.bnf.fr|language=fr|access-date=25 March 2013}}: "Nous proposerons donc de mesurer immédiatement un arc du méridien, depuis Dunkerque jusqu'a Bracelone: ce qui comprend un peu plus de neuf degrés & demi." [We propose then to measure directly an arc of the meridian between Dunkirk and Barcelona: this spans a little more than nine-and-a-half degrees."] p. 8</ref><ref>Paolo Agnoli and Giulio D’Agostini,[https://arxiv.org/abs/physics/0412078 'Why does the meter beat the second?,'] December, 2004 pp.1–29.</ref> मापविज्ञानको विकास हुदैं जादा यसको परिभाषा समय समयमा परिस्कृत भईरह्यो। सन् १९८३देखि यसको परिभाषा "प्रकाशले भ्याक्युममा १/२९९,७९२,४५८ सेकेण्डमा तय गर्ने दुरीको लम्बाई" तय भयो।<ref name="Res1">{{cite web |url=http://www.bipm.org/en/CGPM/db/17/1/ |title=17th General Conference on Weights and Measures (1983), Resolution 1. |access-date=19 September 2012}}</ref>