Furbish customary units
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Furbish customary units are a system of measurement units used in The Furbish Islands since being adopted in XII (1815). Furbish units were based off several measurement systems used by countries that colonized the islands, mainly the Fluvan and Mavonan systems. The system is used today along with several local systems and SI units. The units and their sizes are governed by the Office of Weights and Measures, currently part of the Ministry of Economic Affairs. Since CXIX (1923) Furbish units were defined in terms of the SI system.
History
During the colonial period, many different local systems of measurement existed in The Furbish Islands, even in areas part of the same country. The metric system was officially adopted during the Furbish Revolution, though it was not as widely accepted by the general public as the Furbish calendar was. Standardizing measurements was seen as a lesser priority among the issues facing the government at the time.
Following the Furbish Civil War, John Dodson created the Office of Weights and Measures, or OWM, in an attempt to resist adopting the metric system while still standardizing local units. In their XII (late 1815) report, they developed the current system of measurements for quantities including length, area, volume, and mass. Though for the latter they used units typically used to measure weight, a report by Joseph McNab argued they should be used for mass instead, and proposed another system of units for weight, force, and other mechanical quantites, based around the foot, pound, and Furbish second, now known as the McNab System. This system was chosen by the OWM out of several competing proposals. A temperature scale by Ulysses Callan, known as the Callan scale, was also recommended by the OWM in their report.
The XII report was officially adopted by the National Assembly in the Weights and Measures Act of 12. It established the OWM as a government body under the newly formed Ministry of Economic Affairs with the power to regulate Furbish units of measurement. The definitions of all units were based on prototypes stored in a vault under Boston, later moved to an undisclosed location in the outskirts of the city.
Several additions have been made to the original system. One of the most substantial changes was Jodie McLachlan's LIX (1863) additions to the McNab system, which included units for work. The Dieleman system of electromagnetic units, developed by Jelle Dieleman, was adopted in LXXV (1879). In CXIX (1923), the OWM redefined all Furbish units to be in terms of SI units.
Repeated pushes have been made to replace Furbish customary units with the SI system. Jozef van Biddinghuizen's Order on Weights and Measures in LXXI (1875) reintroduced the system in several applications but was not able to replace Furbish units. The most recent attempt at adopting SI was the Weights and Measures Act of CXLIX (1973), which introduced SI units to more applications but were still unable to replace the Furbish system. In the modern day, both systems are taught in schools and widely used. Furbish units are used in many industrial applications, while SI is used mostly in science. Government documents and road signs list both systems.
Length
| Unit | SI (metric) | Imperial | Definition |
|---|---|---|---|
| Twip (Tp) | 16.5 μm | 0.00065 inches | 1⁄20 of a point |
| Point (Pt) | 0.33 mm | 0.013 inches | 1⁄6 of a line or 1⁄72 of an inch |
| Line (Ln) | 1.98 mm | 0.78 inches | 1⁄4 of a barleycorn or 1⁄12 of an inch |
| Barleycorn (Bc) | 7.92 mm | 0.31 inches | 1⁄3 of an inch |
| Inch (In) | 23.77 mm | 0.94 inches | 23.77 millimeters |
| Thumb (Th) | 47.54 mm | 1.87 inches | 2 inches |
| Palm (Pm) | 95.08 mm | 3.74 inches | 2 thumbs or 4 inches |
| Link (BL) | 19.97 cm | 7.86 inches | 8.4 inches |
| Foot (Ft) | 33.28 cm | 13.10 inches | 7 thumbs or 14 inches |
| Cubit (Cb) | 47.54 cm | 18.70 inches | 5 palms or 20 inches |
| Ell (El) | 66.56 cm | 26.20 inches | 2 feet or 28 inches |
| Yard (Yd) | 99.83 cm | 39.3 inches | 3 feet or 42 inches |
| Pace (Ps) | 1.66 m | 65.5 inches | 5 feet or 70 inches |
| Rod (Rd) | 3.99 m | 13.10 feet | 4 yards or 12 feet |
| Perch (Pr) | 7.99 m | 26.20 feet | 2 rods or 24 feet |
| Chain (BC) | 19.97 m | 65.51 feet | 100 links or 5 rods or 60 feet |
| Arpent (Ar) | 79.87 m | 262.03 feet | 10 perches or 240 feet |
| Furlong (Fl) | 239.61 m | 786.09 feet | 3 arpents or 720 feet |
| Mile (Mi) | 1677.21 m | 1.04 miles | 7 furlongs or 5040 feet |
| Old Einnergans (OEn) |
5031.63 m | 3.13 miles | 3 miles, approximately one conventional hour's walk |
| New Einnergans (En) |
11740.47 m | 7.30 miles | 7 miles, approximately one Furbish hour's walk |
The units of length were developed by the newly created Office of Weights and Measures their XII (late 1815) report. They were based on different units used by countries that colonized The Furbish Islands, mainly the Fluvan system. From XII to CXIX (1923) the lengths were based on a foot long rod stored in the OWM's vault. Since CXIX an inch was defined to be 23.77 millimeters and all other units were based on it.
The most commonly used units of length are the barleycorn (colloquially shortened to "barley" or "bar"), foot, yard, and mile. The chain, based on one created by Seymour Bell, has been historically used for surveying. The following are some uses for different units:
Twip:
Point:
Line:
Barleycorn: Main unit used to measure short lengths.
Inch:
Thumb:
Palm:
Link: Historically used in surveying. 100 links equals one Bell's chain.
Foot:
Cubit:
Ell:
Yard:
Pace:
Rod:
Perch: Used for shorter distances. A Furbish football pitch is between 14.5 and 15.5 perches in length and 8.5 to 9.5 perches in width.
Chain: Historically used in surveying. Based on Bell's chain, which is made up of 100 links.
Arpent:
Furlong:
Mile:
Old Einnergans:
New Einnergans:
Area
Volume
Liquid
Solid
Temperature
The main temperature scale used is the Callan scale, developed by Ulysses Callan in late XI to early XII (mid to late 1815). It is abbreviated °Ca. 0 °Ca is equivalent to -10 degrees Celsius, the coldest recorded temperature in The Furbish Islands at the time, while 150 °Ca is equal to around 50 °C, the hottest recorded temperature at the time. This sets the freezing point of water at 25°Ca, boiling point at 275 °Ca, and human body temperature at 117.5 °Ca.
In L (1854), Leon Gardiner proposed the Absolute Callan Scale, called the Gardiner scale by the OWM and abbreviated as °G. It is equivalent to the Callan scale but starts at absolute zero, therefore the temperature in degrees Gardiner is equal to the temperature in degrees Callan plus 657.875. 0 °Ca is equal to 657.875 °G, and water freezes at 682.875 °G.
Since CXIX (1923), a degree Callan or Gardiner was defined as 2.5 times a degree Celsius, and the temperature in degrees Callan was exactly the temperature in degrees Gardiner minus 657.875.
The following are formulas to convert between temperatures in degrees Celsius and Kelvin, and Callan and Gardiner:
a °Ca to g °G: g = a + 657.875
g °G to a °Ca: a = g - 657.875
a °Ca to c °C: c = a − 25/2.5
c °C to a °Ca: a = c × 2.5 + 25
a °Ca to k K: k = a + 657.875/2.5
k K to a °Ca: a = k × 2.5 − 657.875
g °G to c °C: c = g − 682.875/2.5
c °C to g °G: g = c × 2.5 + 682.875
g °G to k K: k = g/2.5
k K to g °G: g = k × 2.5
The following are formulas to convert temperature intervals between degrees Celsius and Kelvin, and Callan and Gardiner
a °Ca or g °G to c °C or k K: c = k = a/2.5 = g/2.5
c °C or k K to a °Ca or g °G: a = g = c × 2.5 = k × 2.5
Time
Since the Furbish Revolution, The Furbish Islands used the Furbish calendar, which split the day into 10 hours of 100 minutes of 100 seconds. Weeks are 10 days long, months are 3 weeks or 30 days, and there are 12 months in a year along with 5 or 6 complementary days. Since CXIX (1923), the Furbish second was defined as 108⁄125 (0.864) of an SI second.
Mass
Other mechanical units
Miles per hour
Miles per Furbish hour (m/h), not to be confused with imperial miles per hour (mph), is the most common unit used to measure speed.
The following are formulas to convert between m/h, and mph and km/h.
b km/h to a m/h: a = b × 1.4309
c mph to a m/h: a = c × 2.3029
a m/h to b km/h: b = a × 0.6988
a m/h to c mph: c = a × 0.4342
McNab System
| Unit | Quantity | SI (metric) equivalent |
Conversion factor |
|---|---|---|---|
| Foot per second (Ft/s) | speed, velocity | metre per second | XXX |
The most commonly used system of units is the McNab system, proposed by Joseph McNab in XII (1815). It uses the system in the section above as mass rather than weight. For derived units, the foot, pound, and Furbish second are used.
Electromagnetic units
Dieleman system
| Unit | Quantity | SI (metric) equivalent |
Conversion factor |
|---|---|---|---|
| Foot per second (Ft/s) | speed, velocity | metre per second | XXX |
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