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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
Bullseye pistol was the inspiration for the ISSF international 25 m Standard Pistol (82 feet) event and like the ISSF pistol events, the development of skills required to shoot one-handed at 5.5-inch (14 cm) and 8-inch (20 cm) bullseye targets at 25 and 50 yards (23 and 46 m), respectively, takes considerable training to achieve proficiency.
Conversion of the Mach unit of speed depends on the altitude at which the speed is measured. That altitude should be specified either in feet (for example, |altitude_ft=10,000) or in metres (for example, |altitude_m=3,749). The altitude cannot be determined accurately and only a whole number is accepted.
Fullbore target rifle (TR) is a precision rifle shooting-sport discipline governed by the International Confederation of Fullbore Rifle Associations (ICFRA). [1] TR uses single-shot rifles, usually chambered in .308 calibre, with circular "bullseye" targets at distances of 300–1000 yards.
The siriometer is an obsolete astronomical measure equal to one million astronomical units, i.e., one million times the average distance between the Sun and Earth. [13] This distance is equal to about 15.8 light-years, 149.6 Pm, or 4.8 parsecs, and is about twice the distance from Earth to the star Sirius. [14]
electronvolt mass-equivalent: eV/c 2: ≡ 1 eV / c 2 = 1.782 661 84 (45) × 10 −36 kg [3] gamma: γ ≡ 1 μg = 1 μg grain: gr ≡ 1 ⁄ 7000 lb av ≡ 64.798 91 mg: grave: gv grave was the original name of the kilogram ≡ 1 kg hundredweight (long) long cwt or cwt ≡ 112 lb av = 50.802 345 44 kg: hundredweight (short); cental: sh cwt ≡ ...
These bars often used a unit of measure called a rod, of length equal to 5.5 yards, 5.0292 metres, 16.5 feet, or 1 ⁄ 320 of a statute mile. [23] A rod is the same length as a perch or a pole. [24] In Old English, the term lug is also used.
One source identifies a skein of stranded cotton as being 8.25 yards (7.54 m), of tapestry wool as being 10 yards (9.1 m), and crewel wool as being 33 yards (30 m). [ 1 ] In yarns for handcrafts such as knitting or crochet , hanks are not a fixed length but are sold in units by weight, most commonly 50 grams (2 oz).