Odiran Standard Units

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The Odiran Standard Units was a standard system of units in use on Odira. English translations are given for the unit names

Contents

Modern Standard System

Time

Time is, as on Earth, based on divisions of the day. The Galhafan day is 25 hours, 52 minutes, and 7 seconds in Earth time.

  • 1 Day = 12 Hours - 25 hr 52m 7s
  • 1 Hour = 5 Fifths - 2 hr 9m 21s (little use in modern times)
  • 1 Fifth = 60 Minutes - 25 min 52.12 sec
  • 1 Minute = 60 Intervals - 25.869 sec
  • 1 Interval = .43114 seconds

Distance

The basic unit of length is the fathom, which is defined as twice the distance an object falls in 1 Interval on Galhaf. This makes it approximately 165cm or 5'5" (hence, the gravitational acceleration on Galhaf is exactly 1 fathom per interval²)

  • 1 Mile = 10 Furlongs = 1.98 km (1.23 mi)
  • 1 Furlong = 120 Fathoms = 198 m (651 ft)
  • 1 Fathom = 4 Cubits = 165.4cm (5'5")
  • 1 Cubit = 6 Hands = 41.35cm (16.3")
  • 1 Hand = 4 Fingers = 6.892cm (2.71")
  • 1 Finger = 4 Quarters = 1.723cm (.678")
  • 1 Quarter = 4.308mm (.170")

Volume

The basic unit of volume is the barrel equal to one cubic cubit (70.721 L or 18.688 gal)

  • 1 Cubic fathom = 8 Octets = 4526 L (1196 gal) (cube 1 fathom on a side)
  • 1 Octet = 8 Barrels = 565.7 L (149.5 gal) (cube 2 cubits on a side)
  • 1 Barrel = 8 Jugs = 70.721 L (18.682 gal) (1 cubit cubed)
  • 1 Jug = 8 Sacks = 8.8401 L (9.3412 qt) (3 hands cubed)
  • 1 Sack = 8 Cups = 1.1050 L (37.365 oz) (6 fingers cubed)
  • 1 Cup = 27 Spoons = 138.13 mL (4.6706 oz) (3 fingers cubed)
  • 1 Spoon = 5.1158 mL (1.0379 tsp) (1 cubic finger)

Mass

The basic unit of mass is the Talent, equal to the mass of one barrel of water (70.721 kg or 155.92 lb)

  • 1 Talent = 8 Octals = 70.721 kg (155.92 lb)
  • 1 Octal = 12 Pounds = 8.8401 kg (19.489 lb)
  • 1 Pound = 12 Ounces = 736.67 g (25.985 oz)
  • 1 Ounce = 12 Spoon-weight = 61.390 g (2.1655 oz)
  • 1 Spoon-weight = 12 Bits = 5.1158 g (78.949 grains)
  • 1 Bit = 25 International Grains = 426.32 mg (6.5791 grains)
  • 1 International Grain = 17.053 mg (.26316 grains)

Human weights are commonly measured in quarters of an octal, e.g., one might give a weight as being "6¾ [octals]", that is around 60 kg, 130 lb

Note: the International Grain is approximately 1.0133 Traditional Grains.

Temperature

The freezing point of water is 12° while the boiling point is 48°. 12° is equivalent to 0°C/32°F, while the boiling point at standard Galhafan atmospheric pressure is 108ºC/226.4°F, making the gradation equal to 3 C° or 5.4 F°

Some Archaic Systems

Northern Traders' Standard Weights

This system used as its basis the weight of a cube of silver 1 (archaic) finger to a side. This old Finger was slightly larger than the modern Finger, approximately 1.79 cm (4.56"). This standard weight, called a Traders' Unit, was equal to 60.59 g (2.14 oz). It was mostly used for measuring the mass of silver coins. Most of the states of the Northen Region adjusted their coins' weights to be even fractions of the pound

  • 1 Talent = 60 pounds
  • 1 Pound = 12 Traders' Units = 727.1 g (1.603 lb)
  • 1 Traders' Unit = 60 Big Grains = 60.59 g (2.137 oz)
  • 1 Big Grain = 60 Little Grains = 1.010 g (15.58 grains)
  • 1 Little Grain = 16.83 mg (.2597 grains)
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