Open main menu

Wikipedia β

List of obsolete units of measurement

This is a list of obsolete units of measurement, sorted by type. These units of measurement are typically no longer used, though some may be in limited use in various regions.

Contents

AreaEdit

Energy, etc.Edit

LengthEdit

LuminosityEdit

 
A Hefner lamp (German: Hefnerkerze)
  • Candlepower – an obsolete unit expressing luminous intensity equal to 0.981 candela, it expresses levels of light intensity in terms of the light emitted by a candle of specific size and constituents. In modern usage candlepower equates directly to the unit known as the candela.
  • Carcel burner – an efficient lighting device used in the nineteenth century for domestic purposes and in France as the standard measure for illumination
  • Carcel
  • Hefner candle
  • Violle

Mass or weightEdit

Volume (dry and liquid)Edit

 
These are glass milk bottles from 1950s Quebec. The large bottle is a pinte (quart), the middle size a chopine (pint) and the small size a demiard (½-pint).[6] The latter was used for cream.
  • Acetabulum
  • Adowlie
  • Amphora
  • Aum
  • Belshazzar (unit)
  • Botella − The Spanish for "bottle", which has been given various standard capacities at different times and places, and for different fluids contained.[7] Often-cited figures include 0.95 liters in Cuba (1796), 0.75 liters in Cuba (1862) and 0.7 liters in Colombia (1957).[8]
  • Bucket
  • Butt
  • Chungah
  • Congius
  • Coomb
  • Cord-foot – a US unit of volume for stacked firewood with the symbol cd-ft equal to 16 cu ft (0.45 m3)[2]:52
  • Cotyla
  • Cran
  • Cullishigay
  • Deal – a former U.K. and U.S. unit of volume for stacked firewood.[2] A U.K. deal equaled 7 ft × 6 ft × 5/2 in., while a U.S. deal equaled 12 ft × 11 in × 3/2 in.[2]
  • Demiard - an old French unit of volume. When France metricated, the demiard survived in French-speaking areas of North America. The demiard and other units eventually became associated with Anglo-Saxon rather than French units (in Quebec for example, the demiard is defined as a half-pint).[2]:34 See the article on the demiard for details.
  • Firlot
  • Hekat
  • Homer
  • House cord – a former U.S. unit of volume for stacked firewood[2]
  • Kile
  • Koku
  • Lambda – an uncommon metric unit of volume discontinued with the introduction of the SI
  • London quarter
  • Lump of butter – used in the United States, up to and possibly after of the American Revolution. It equaled "one well rounded tablespoon".[9]
  • Masu
  • Metretes
  • Octave
  • Omer
  • Pau
  • Peck – the name of two different units of volume, one imperial and one U.S. Both equaled about 9 litres.
  • Puddee
  • Salt spoon – used in the United States, up to and possibly after of the American Revolution. Four salt spoons equaled one teaspoon.[9]
  • Seah
  • Ser
  • Shipping ton – a unit of volume defined as 100 cu ft (2.8 m3)
  • Stuck
  • Wineglass – used in the United States, up to and possibly after of the American Revolution. One wineglass equaled 1/4 cup.[9]

OtherEdit

  • Apothecaries' system
  • Atom (time) – a hypothetical unit of time used in the Middle Ages
  • Bahar – a unit of length in Iran, and was a unit of mass in Oman
  • Batman – mostly a unit of mass, but sometimes a unit of area
  • Demal – unit of concentration
  • Dimi (metric prefix) – a discontinued non-SI metric prefix for 10−4[2]
  • Fanega – a unit of dry volume, and a unit of area
  • Fresnel – a unit of frequency
  • Garce – a unit of dry volume in India, and a unit of mass in Sri Lanka
  • Hobbit – a unit of volume, or, more rarely, of weight
  • Kula – a unit of area in India, and mass in Morocco
  • Last – a unit of mass or volume
  • League – usually a unit of length, but sometimes a unit of area
  • Leiden scale
  • Mache
  • Mesures usuelles
  • Newton scale – a temperature scale devised by Isaac Newton in 1701.[10][11][12]
  • Perch – most commonly a unit of area, but sometimes a unit of length or volume
  • Pièze – a unit of pressure
  • Rood – a unit of area or length
  • Sack – originally a medieval unit of mass, equal to 26 stone (364 pounds, or about 165 kg). Since a unit of dry volume, equal to 24 imperial gallons (about 109 liters).
  • Schoenus – a unit of area or length
  • Scrupulum – a unit of area, mass, or time
  • Seam – a unit of mass or volume
  • Seer – a unit of mass or volume
  • Toise – a unit of area, length, or volume
  • Tub – usually a unit of mass, but sometimes a unit of volume
  • Uncia – an ancient Roman unit of length, mass, or volume
  • Wey – a unit of mass or volume
  • Winchester measure – a system of volume measurement

See alsoEdit

ReferencesEdit

  1. ^ a b Herlihy, David (2009). Medieval Households. Harvard University Press. p. 69. 
  2. ^ a b c d e f g h i j k l Cardarelli, François (2003). Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins. London: Springer. p. 17. ISBN 978-1-4471-1122-1. 
  3. ^ a b Gilbert, E.W.; Beckinsale, R.P. (1944). Spain & Portugal: Spain. Its Geographical handbook series. Naval Intelligence Division. 
  4. ^ Hoong, Tho Lai; Yi, Tho Mun. Interactive Science For Inquiring Minds Volume A. Panpac Education Pte Ltd. p. 33. ISBN 9812716181. 
  5. ^ Kisch, Bruno (1965). Scales and Weights. Original from the University of California: Yale University Press. p. 237. 
  6. ^ Trudel, Marcel, Introduction to New France, p. 222 
  7. ^ sizes.com lists figures for bottles in Bolivia from 460 ml to 1 liter.
  8. ^ McCusker, John (2005). Essays in the Economic History of the Atlantic World. Routledge. p. 63. ISBN 1134703406. 
  9. ^ a b c Pelton, Robert W.; Pelton, W. Pelton (2004). Baking Recipes of Our Founding Fathers. Infinity Publishing. pp. 263–264. ISBN 0741419440. 
  10. ^ Published anonymously as "Scala graduum Caloris. Calorum Descriptiones & signa." in Philosophical Transactions. 1701. pp. 824–829. 
  11. ^ Nichols, Joannes, ed. (1782). Isaaci Newtoni Opera quae exstant omnia. 4. pp. 403–407. 
  12. ^ Silverman, Mark P. (2002), A Universe of Atoms, Springer, p. 49