metre or meter


See Wiktionary Terms of Use for details. a tract of land enclosed for particular activities (sometimes paved and usually associated with buildings); "they opened a repair yard on the edge of town", an area having a network of railway tracks and sidings for storage and maintenance of cars and engines, an enclosure for animals (as chicken or livestock), a long horizontal spar tapered at the end and used to support and spread a square sail or lateen, the cardinal number that is the product of 10 and 100.

In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. uncertainty in the refractive index of the medium, This page was last edited on 14 October 2020, at 19:37. Air is only one possible medium to use in a realisation of the metre, and any partial vacuum can be used, or some inert atmosphere like helium gas, provided the appropriate corrections for refractive index are implemented. How long will the footprints on the moon last?

Part of being a signee/member is the stipulation that states that the BIPM is the sole entity that regulates the SI, and the BIPM officially publishes the SI in two languages: English and French. Noah Webster standardized on “sulfur” in the US, while the British kept the traditional “sulphur”, and we were where we were until the IUPAC standardized to “sulfur” in the 1990s. [53], To further reduce uncertainty, the 17th CGPM in 1983 replaced the definition of the metre with its current definition, thus fixing the length of the metre in terms of the second and the speed of light:[54].

You are only limited by your imagination and creativity. as you mentioned), because the SI is not published in those languages, only deviating from the definitions and symbols of the units is not allowed. A metal yardstick originally formed the physical standard from which all other units of length were officially derived in both English systems. (chiefly, US, elsewhere metre) A line above or below a hanging net, to which the net is attached in order to strengthen it. “Sulphur” will continue to be correct in British English until it falls out of favour with the general populace so much that it’s listed in the dictionary as an archaic spelling. In 1983, the current definition was adopted. One metre is about ​3 3⁄8 inches longer than a yard, i.e. Change ), active writing guide for non-native speakers, “Few” and “a few”; “little” and “a little”, The difference between “metre” and “meter”, Overuse of linking phrases and discourse markers, The difference between “in possession of” and “in the possession of”. The "meter" is actually what we call an Americanism (America has basically changed the original spelling). A measure of length, equal to 39.37 English inches, the standard of linear measure in the metric system of weights and measures.

SI prefixes are often employed to denote decimal multiples and submultiples of the metre, as shown in the table below. The SI unit symbol is m. metre definition: 1. a unit of measurement equal to 100 centimetres: 2. the regular arrangement of syllables in….

Picard's geodetic observations had been confined to the determination of the magnitude of the Earth considered as a sphere, but the discovery made by Jean Richer turned the attention of mathematicians to its deviation from a spherical form. One who, or that which, metes or measures.

18. ; they are defined in a specification, so what the specification says is what the spelling is. [28] This portion of the Paris meridian, was to serve as the basis for the length of the half meridian connecting the North Pole with the Equator. Although conversion from wavelengths to metres introduces an additional error in the overall length due to measurement error in determining the refractive index and the frequency, the measurement of frequency is one of the most accurate measurements available.[66]. Long distances are usually expressed in km, astronomical units (149.6 Gm), light-years (10 Pm), or parsecs (31 Pm), rather than in Mm, Gm, Tm, Pm, Em, Zm or Ym; "30 cm", "30 m", and "300 m" are more common than "3 dm", "3 dam", and "3 hm", respectively. [54] An intended by-product of the 17th CGPM's definition was that it enabled scientists to compare lasers accurately using frequency, resulting in wavelengths with one-fifth the uncertainty involved in the direct comparison of wavelengths, because interferometer errors were eliminated. When it comes to specifications, there are no dialects. With a preface and notes on the Greek and Egyptian measures of length by Sir Henry James", "Comptes rendus hebdomadaires des séances de l'Académie des sciences / publiés... par MM. The rhythm or measure in verse and musical composition. Practical realisation of the metre is subject to uncertainties in characterising the medium, to various uncertainties of interferometry, and to uncertainties in measuring the frequency of the source. The US, like every other country in the world which uses the SI, has signed the Treaty of the Metre and/or is a member of the International Bureau of Weights and Measures (BIPM). The use of the word metre (for the French unit mètre) in English began at least as early as 1797. A line above or below a hanging net, to which the net is attached in order to strengthen it. Depending on your definition of English. Eventually, this mistranscription was ironically re-transliterated back into Latin as “sulfur” as per Latin orthographic rules, and “sulfur” and “sulphur” coexisted for a while, though “sulphur” was the more popular and traditional one.
Other Germanic languages, such as German, Dutch, and the Scandinavian languages[7] likewise spell the word meter. The yard (abbreviation: yd) is an English unit of length, in both the British imperial and US customary systems of measurement, that comprises 3 feet or 36 inches. [29][30] The latter was related by Larrie D. Ferreiro in Measure of the Earth: The Enlightenment Expedition that Reshaped Our World.

We don't have any banner, Flash, animation, obnoxious sound, or popup ad. (chiefly, US, elsewhere metre) (music) An increment of music; the overall rhythm; particularly, the number of beats in a measure.

[58] Consequently, a realisation of the metre is usually delineated (not defined) today in labs as 1579800.762042(33) wavelengths of helium-neon laser light in a vacuum, the error stated being only that of frequency determination.

7160: The Local Government Code of the Philippines, "Interpretation of the International System of Units (the Metric System of Measurement) for the United States", Laser interferometer displacement sensors, https://en.wikipedia.org/w/index.php?title=Metre&oldid=983533295, Wikipedia articles needing factual verification from August 2019, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Wikipedia articles incorporating text from the 1911 Encyclopædia Britannica, Articles with unsourced statements from August 2020, Articles containing Ancient Greek (to 1453)-language text, Creative Commons Attribution-ShareAlike License, The length of the new metre to be equal to the length of a, Provisional metre bar made of brass and based on, Specifies the platinum metre bar, presented on 22 June 1799 and deposited in the, Defines the metre as the distance between two lines on a standard bar of an alloy of, Redefines the metre as the distance, at 0, Defines the metre as the length of the path travelled by, Platinum-iridium bar at melting point of ice (1st, Platinum-iridium bar at melting point of ice, atmospheric pressure, supported by two rollers (7th CGPM), Length of the path travelled by light in a vacuum in. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumferenceis approximately 40000 km. A “meter” in British English is an instrument for measuring.

It doesn't calculate a price like an index does, it gauges the strength on a numerical scale. Commonly used units shown in, The most recent official brochure about the International System of Units (SI), written in French by the, CS1 maint: multiple names: authors list (, ('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.)
One metre is about ​3 3⁄8 inches longer than a yard, i.e. "Outlines of the evolution of weights and measures and the metric system", "Chapter 2: The International system of Units", Batas Pambansa Blg. You have several of them at home – a water meter, a gas meter and an electricity meter. I am surprised at you guys. stamp with a meter indicating the postage; a unit of length equal to 3 feet; defined as 91.44 centimeters; originally taken to be the average length of a stride.

One who, or that which, metes or measures. I have to take issue with you, though, when you say that ‘using “meter” to refer to this unit is simply incorrect’. [20] After the July Revolution of 1830 the metre became the definitive French standard from 1840. [50][51], In 1873, James Clerk Maxwell suggested that light emitted by an element be used as the standard both for the meter and for the second.

Not metre!

We do not implement these annoying types of ads! [14][15][16], Jean Richer and Giovanni Domenico Cassini measured the parallax of Mars between Paris and Cayenne in French Guiana when Mars was at its closest to Earth in 1672. In 1886 the association of geodesy changed name for the International Geodetic Association, which Carlos Ibáñez e Ibáñez de Ibero presided up to his death in 1891. [11], The French Academy of Sciences commissioned an expedition led by Jean Baptiste Joseph Delambre and Pierre Méchain, lasting from 1792 to 1799, which attempted to accurately measure the distance between a belfry in Dunkerque and Montjuïc castle in Barcelona at the longitude of Paris Panthéon (see meridian arc of Delambre and Méchain). In 1983, the current definition was adopted. The original word referring to the element sulfur is “sulpur” (without the h) in Latin. Ano ang pinakamaliit na kontinente sa mundo? Ano ang mga kasabihan sa sa aking kababata?

Its meter! A long piece of timber, as a rafter, etc. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account.

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Here n is the refractive index of the medium in which the measurement is made, and f is the measured frequency of the source. The motto ΜΕΤΡΩ ΧΡΩ (metro chro) in the seal of the International Bureau of Weights and Measures (BIPM), which was a saying of the Greek statesman and philosopher Pittacus of Mytilene and may be translated as "Use measure! The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI). Rhythmical arrangement of syllables or words into verses, stanzas, strophes, etc. The metre was in fact defined as one ten-millionth of one-quarter of the earth's circumference at sea-level.'. Copyright © 2020 Multiply Media, LLC.

The rood, area bound by a square rod, ¼ acre. [60] As described by NIST, in air, the uncertainties in characterising the medium are dominated by errors in measuring temperature and pressure.

International Bureau of Weights and Measures, International Committee for Weights and Measures, General Conference on Weights and Measures, National Institute of Standards and Technology, "The International System of Units (SI) – NIST", "295–296 (Nordisk familjebok / Uggleupplagan. We don't have any banner, Flash, animation, obnoxious sound, or popup ad.

The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI). Units of similar composition or length in other systems.

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