Stere: Difference between revisions
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[[File:Raummeter hg.jpg|thumb|280px| The stère as a cubic metre of stacked firewood]] |
[[File:Raummeter hg.jpg|thumb|280px| The stère as a cubic metre of stacked firewood]] |
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The '''stere''' or '''stère''' (st) is a [[units of measurement|unit]] of [[volume]] in the [[metric system|original metric system]] equal to one [[cubic metre]]. The stère is typically used for measuring large quantities of [[firewood]] or other cut wood,<ref>{{cite web|author=Thierry Thomasset|title=''Le stère|url=http://www.utc.fr/~tthomass/Themes/Unites/unites/infos/stere/Le%20stere.pdf|accessdate=2011-03-21|work=Tout sur les unités de mesure [All about the units of measure]|publisher=Université de Technologie de Compiègne|language=French}}</ref> while the cubic meter is used for uncut wood.<ref>For example:{{cite web|title=Rough guide to calculating timber volumes|url=http://www.forestry.gov.uk/pdf/timbervolume.pdf/$FILE/timbervolume.pdf|publisher=[[Forestry Commission]]}}</ref> The name was coined from the Greek στερεός ''stereós'', "solid", in 1795 in [[France]] as a metric analogue to the [[Cord (unit of volume)|cord]]. The unit was introduced to remove regional disparities of this former unit, for which the length could vary greatly from 6 to 13.5 m. It is not part of the [[International System of Units|modern metric system (SI)]]. |
The '''stere''' or '''stère''' (st) is a [[units of measurement|unit]] of [[volume]] in the [[metric system|original metric system]] equal to one [[cubic metre]]. The stère is typically used for measuring large quantities of [[firewood]] or other cut wood,<ref>{{cite web|author=Thierry Thomasset|title=''Le stère|url=http://www.utc.fr/~tthomass/Themes/Unites/unites/infos/stere/Le%20stere.pdf|accessdate=2011-03-21|work=Tout sur les unités de mesure [All about the units of measure]|publisher=Université de Technologie de Compiègne|language=French}}</ref> while the cubic meter is used for uncut wood.<ref>For example:{{cite web|title=Rough guide to calculating timber volumes|url=http://www.forestry.gov.uk/pdf/timbervolume.pdf/$FILE/timbervolume.pdf|publisher=[[Forestry Commission]]}}</ref> The name was coined from the Greek στερεός ''stereós'', "solid", in 1795 in [[France]] as a metric analogue to the [[Cord (unit of volume)|cord]]. The unit was introduced to remove regional disparities of this former unit, for which the length could vary greatly from 6 to 13.5 m. It is not part of the [[International System of Units|modern metric system (SI)]] and is no longer a legal unit in France, but remains used in the commerce a firewood. |
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The correspondence between stere and cubic meter of stacked wood is |
The correspondence between stere and cubic meter of stacked wood is imprecise because it depends on the length of the logs used and on how irregular they are. The stere corresponds to 1 m<sup>3</sup> of wood, made exclusively with logs of 1 m in length, all stacked parallel and neatly arranged. If the length of the logs is less than 1 m, the volume of visible wood decreases because the voids are better occupied. Thus the "stere" no longer corresponds to 1 m<sup>3</sup>, but to 0.8 m<sup>3</sup> for logs of 50 cm, 0.7 m<sup>3</sup> for logs of 33 cm and 0.6 m<sup>3</sup> for logs of 25 cm. |
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In Dutch and German, a closely related unit called ''kuub'' (Dutch), short for ''kubieke meter'', or "Kubikmeter" (German) which differs from a stere. Whereas a "kuub" or "Kubikmeter" is a solid cubic metre, as it was traditionally used for wood, a stère (in German: Raummeter) is a cubic metre pile of woodblocks. A stère or Raummeter is less than a kuub or full cubic metre of wood, because the spaces between the woodblocks are included in a stère, while they do not count towards a kuub or Kubikmeter. In Finnish, the same unit is known as ''motti'' (from Swedish ''mått'', "measure"). |
In Dutch and German, a closely related unit called ''kuub'' (Dutch), short for ''kubieke meter'', or "Kubikmeter" (German) which differs from a stere. Whereas a "kuub" or "Kubikmeter" is a solid cubic metre, as it was traditionally used for wood, a stère (in German: Raummeter) is a cubic metre pile of woodblocks. A stère or Raummeter is less than a kuub or full cubic metre of wood, because the spaces between the woodblocks are included in a stère, while they do not count towards a kuub or Kubikmeter. In Finnish, the same unit is known as ''motti'' (from Swedish ''mått'', "measure"). |
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Revision as of 07:30, 12 November 2022
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The stere or stère (st) is a unit of volume in the original metric system equal to one cubic metre. The stère is typically used for measuring large quantities of firewood or other cut wood,[1] while the cubic meter is used for uncut wood.[2] The name was coined from the Greek στερεός stereós, "solid", in 1795 in France as a metric analogue to the cord. The unit was introduced to remove regional disparities of this former unit, for which the length could vary greatly from 6 to 13.5 m. It is not part of the modern metric system (SI) and is no longer a legal unit in France, but remains used in the commerce a firewood.
The correspondence between stere and cubic meter of stacked wood is imprecise because it depends on the length of the logs used and on how irregular they are. The stere corresponds to 1 m3 of wood, made exclusively with logs of 1 m in length, all stacked parallel and neatly arranged. If the length of the logs is less than 1 m, the volume of visible wood decreases because the voids are better occupied. Thus the "stere" no longer corresponds to 1 m3, but to 0.8 m3 for logs of 50 cm, 0.7 m3 for logs of 33 cm and 0.6 m3 for logs of 25 cm.
In Dutch and German, a closely related unit called kuub (Dutch), short for kubieke meter, or "Kubikmeter" (German) which differs from a stere. Whereas a "kuub" or "Kubikmeter" is a solid cubic metre, as it was traditionally used for wood, a stère (in German: Raummeter) is a cubic metre pile of woodblocks. A stère or Raummeter is less than a kuub or full cubic metre of wood, because the spaces between the woodblocks are included in a stère, while they do not count towards a kuub or Kubikmeter. In Finnish, the same unit is known as motti (from Swedish mått, "measure").
The stère as used in contexts outside the timber industry is not subject to the same ambiguity.[3] In particular, stère and kilostère are sometimes used in hydrology, as the kilostere (1000 m3 or megalitre) is a slightly smaller metric analogue of an acre-foot (approximately 1233 m3), similar to the relationship of the tonne to the short ton.[4]
See also
References
- ^ Thierry Thomasset. "Le stère" (PDF). Tout sur les unités de mesure [All about the units of measure] (in French). Université de Technologie de Compiègne. Retrieved 2011-03-21.
- ^ For example:"Rough guide to calculating timber volumes" (PDF). Forestry Commission.
- ^ Webster 1913
- ^ [1] doi:10.1126/science.34.885.813
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