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List Of Obsolete Units Of Measurement
This is a list of obsolete units of measurement, organized by type. These units of measurement are typically no longer used, though some may be in limited use in various regions. For units of measurement that are unusual but not necessarily obsolete, see List of unusual units of measurement. For units of measurement that are humorous in nature, see List of humorous units of measurement. Area * Antsingae – a unit of area, smaller than the bunarium. * Bunarium (plural "bunaria") – a unit of area, equal to about 120 Hectare#Are, ares or 12,000 square metres * Carucate * Cawnie * Decimal (unit), Decimal * Dessiatin * Ground (unit), Ground * Hide (unit), Hide * Juchart * Jugerum * Katha (unit), Katha * Lessa (unit), Lessa or Lecha * Marabba * Morgen * Oxgang * Pari (unit), Pari – a unit of area equal to about 1 hectare * Quinaria * Tathe * Virgate Energy, etc. * Poncelet – unit of power * Sthène – unit of force * * Length * Ald (unit), Ald * Alen (unit of length), Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Units Of Measurement
A unit of measurement, or unit of measure, is a definite magnitude (mathematics), magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a multiple of the unit of measurement. For example, a length is a physical quantity. The metre (symbol m) is a unit of length that represents a definite predetermined length. For instance, when referencing "10 metres" (or 10 m), what is actually meant is 10 times the definite predetermined length called "metre". The definition, agreement, and practical use of units of measurement have played a crucial role in human endeavour from early ages up to the present. A multitude of System of measurement, systems of units used to be very common. Now there is a global standard, the International System of Units (SI), the modern form of the metric system. In trade, weights and measures are often a su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katha (unit)
Katha or Biswa (also spelled kattha or cottah; Hindi: कट्ठा, Assamese: কঠা, Bengali: কাঠা) is a unit of area mostly used for land measurement in India, Nepal, and Bangladesh. After metrication in the mid-20th century by these countries, the unit became officially obsolete. But this unit is still in use in much of Bangladesh, Northern India, Eastern India and Nepal. The measurement of katha varies significantly from place to place. In Purvanchal, 1 Katha = or 151.25 square yard. One Bigha is made up of 5 to 20 Katha. Katha is divided into 20 Dhur and Dhur is subdivided into 20 Dhurki. Bangladesh In Bangladesh, one katha is standardized to , and 20 katha equals 1 bigha. * 1 Katha (কাঠা) = 720 sq. feet = 66.88 sq. metre = 1.652 Decimal (শতাংশ/ শতক) * 1 Bigha (বিঘা) = 20 Katha (কাঠা) = 14,400 square feet = 1,338 sq m = 1,600 sq yard * 1 Acre (একর) = 3.025 Bigha (বিঘা) = 60.5 Katha (কাঠ� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ald (unit)
Ald is an obsolete Mongolian measure equal to the average human male's armspan (length between a male's outstretched arms). An ald is therefore approximately equal to . See also * Mongolian units * Fathom A fathom is a unit of length in the imperial and the U.S. customary systems equal to , used especially for measuring the depth of water. The fathom is neither an international standard (SI) unit, nor an internationally accepted non-SI unit. H ... Culture of Mongolia Units of length Human-based units of measurement Obsolete units of measurement {{measure-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Force
In physics, a force is an influence that can cause an Physical object, object to change its velocity unless counterbalanced by other forces. In mechanics, force makes ideas like 'pushing' or 'pulling' mathematically precise. Because the Magnitude (mathematics), magnitude and Direction (geometry, geography), direction of a force are both important, force is a Euclidean vector, vector quantity. The SI unit of force is the newton (unit), newton (N), and force is often represented by the symbol . Force plays an important role in classical mechanics. The concept of force is central to all three of Newton's laws of motion. Types of forces often encountered in classical mechanics include Elasticity (physics), elastic, frictional, Normal force, contact or "normal" forces, and gravity, gravitational. The rotational version of force is torque, which produces angular acceleration, changes in the rotational speed of an object. In an extended body, each part applies forces on the adjacent pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sthène
The sthène (; symbol sn), sometimes spelled (or misspelled) sthéne or sthene (from ), is an obsolete unit of force or thrust in the metre–tonne–second system of units (mts) introduced in France in 1919. When proposed by the British Association in 1876, it was called the funal, but the name was changed by 1914. The mts system was abandoned in favour of the mks system and has now been superseded by the International System of Units The International System of Units, internationally known by the abbreviation SI (from French ), is the modern form of the metric system and the world's most widely used system of measurement. It is the only system of measurement with official s .... : References Obsolete units of measurement Units of force Non-SI metric units Metre–tonne–second system of units {{France-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poncelet
The poncelet (symbol p) is an obsolete unit of power, once used in France and replaced by (ch, metric horsepower). The unit was named after Jean-Victor Poncelet.François Cardarelli, ''Encyclopaedia of Scientific Units, Weights and Measures: Their Si Equivalences and Origins'', Springer, 2003, , page 527 One poncelet is defined as the power required to raise a hundred-kilogram mass (quintal) at a velocity of one metre per second (100 kilogram-force The kilogram-force (kgf or kgF), or kilopond (kp, from ), is a non-standard Gravitational metric system, gravitational metric unit of force. It is not accepted for use with the International System of Units (SI) and is deprecated for most uses. T ...·m/s). : 1 p = 980.665 W = {{sfrac, 4, 3 ch ≈ 1.315 hp (imperial horsepower) References Units of power Obsolete units of measurement Metrication in France ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virgate
The virgate, yardland, or yard of land ( was an English unit of land. Primarily a measure of tax assessment rather than area, the virgate was usually (but not always) reckoned as hide and notionally (but seldom exactly) equal to 30 acres. It was equivalent to two of the Danelaw's oxgangs. __NOTOC__ Name The name derives from the Old English ' ("yard of land"), from “yard's” former meaning as a measuring stick employed in reckoning acres (cf. rod). The word is etymologically unrelated to the yard of land around a dwelling. "Virgate" is a much later retronym, anglicizing the yardland's latinized form ''virgāta'' after the advent of the yard rendered the original name ambiguous. History The virgate was reckoned as the amount of land that a team of two oxen could plough in a single annual season. It was equivalent to a quarter of a hide, so was nominally thirty acres. In some parts of England, it was divided into four nooks (; ). Nooks were occasionally furthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tathe
A tathe or tate is a unit of area which was used in Fermanagh and Monaghan, equivalent to 60 Irish acres. Four tathes make a ''quarter'' of land, four quarters make a ''ballibetagh'' and, in Fermanagh, seven ballibetaghs make a ''barony'', of which there were seven. However, the measure of a ballybetagh is far larger in Fermanagh than in Monaghan. In total at this period in time (1609), it was estimated that Fermanagh which had 51 ballibetaghs and a half of "chargeable lands" contained the same area as Monaghan Monaghan ( ; ) is the county town of County Monaghan, Republic of Ireland, Ireland. It also provides the name of its Civil parishes in Ireland, civil parish and Monaghan (barony), Monaghan barony. The population of the town as of the 2022 cen ... which had 100 ballibetaghs. A quick survey of 1608 found the Tathe to be only half the extent assigned to it by the Irish which was 60 native Irish acres. References {{reflist Obsolete units of measurement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quinaria
A quinaria (plural: quinariae) is a Roman unit of area, roughly equal to . Its primary use was to measure the cross-sectional area of pipes in Roman water distribution systems. A "one quinaria" pipe is in diameter. In Roman times, there was considerable ambiguity regarding the origin of the name, and the actual value of a quinaria. According to Frontinus: ...Those who refer (the quinaria) to Vitruvius and the plumbers, declare that it was so named from the fact that a flat sheet of lead 5 digits wide, made up into a round pipe, forms this ajutage. But this is indefinite, because the plate, when made up into a round shape, will be extended on the exterior surface and contracted on the interior surface. The most probable explanation is that the quinaria received its name from having a diameter of 5/4 of a digit... In other words, Vitruvius claimed that the name was derived from a pipe created from a flat sheet of lead "5 digits wide", roughly , but Frontinus contested the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hectare
The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, square metres (), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and one hectare contains about . In 1795, when the metric system was introduced, the ''are'' was defined as 100 square metres, or one square decametre, and the hectare (" hecto-" + "are") was thus 100 ''ares'' or km2 ( square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the ''are'' was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa () and are (100 m2) are not officially "accepted for use", they are still used in some contexts. Description The hectare (), although not a unit of SI, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pari (unit)
A pari was customary unit of area equal to 50×60 sana lamjel in Manipur, India, approximately 1 hectare. A sana lamjel was defined by the ruler of the kingdom, Nongda Lairen Pakhangpa in 33 CE, being equal to the distance from the floor to the tips of the fingers of his raised right hand while standing (a fathom A fathom is a unit of length in the imperial and the U.S. customary systems equal to , used especially for measuring the depth of water. The fathom is neither an international standard (SI) unit, nor an internationally accepted non-SI unit. H ...), plus 4 fingerwidths. 1 pari was equal to 2 lourak, 4 sangam, 8 loukhai, 16 loushal, or 32 tong. See also * List of customary units of measurement in South Asia References Customary units in India Obsolete units of measurement Units of area {{measurement-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxgang
An oxgang or bovate (; ; ; ) is an old land measurement formerly used in Scotland and England as early as the 16th century sometimes referred to as an oxgait. It averaged around 20 English acres, but was based on land fertility and cultivation, and so could be as low as 15. An oxgang is also known as a ''bovate'', from ''bovāta'', a Medieval Latinisation of the word, derived from the Latin ''wikt:bos#Latin, bōs'', meaning "ox, bullock or cow". Oxen, through the Scottish Gaelic word ''damh'' or ''dabh'', also provided the root of the land measurement 'daugh'. William Forbes Skene, Skene in ''Celtic Scotland'' says: : "in the eastern district there is a uniform system of land denomination consisting of 'daugh, dabhachs', 'ploughgates' and 'oxgangs', each 'dabhach' consisting of four 'ploughgates' and each 'ploughgate' containing eight 'oxgangs'. :"As soon as we cross the great chain of mountains [the Grampian Mountains (Scotland), Grampian Mountains] separating the North Sea, ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
