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= 1.143 m fathom: ftm ... = 9.290 304 m 2: square chain (international) ... ≈ 8.478 352 81 × 10 −30 C⋅m [38] coulomb-meter: C⋅m = 1 C⋅m debye: D
A tuck seine or tuck net about 70 fathoms (420 ft; 130 m) long, and very deep in the middle, was used to take fish from a larger seine. A line attached to a whaling harpoon was about 150 fathoms (900 ft; 270 m). A forerunner — a piece of cloth tied on a ship's log line some fathoms from the outboard end — marked the limit of drift line. [25]
Fathom: Length: Knot: Speed: League: Length: Nautical mile: Length: Rhumb: Angle: The angle between two successive points of the thirty-two point compass (11 degrees 15 minutes) (rare) [1] Shackle: Length: Before 1949, 12.5 fathoms; later 15 fathoms. [2] Toise: Length: Toise was also used for measures of area and volume Twenty-foot equivalent ...
square kilometre: km2 km 2: US spelling: square kilometer: 1.0 km 2 (0.39 sq mi) km2 sqmi; square metre: m2 m 2: US spelling: square meter: 1.0 m 2 (11 sq ft) m2 sqft; square centimetre: cm2 cm 2: US spelling: square centimeter: 1.0 cm 2 (0.16 sq in) cm2 sqin; square millimetre: mm2 mm 2: US spelling: square millimeter: 1.0 mm 2 (0.0016 sq in ...
It was used along with the metric system for a while, but is long discontinued. A metric lieue was used in France from 1812 to 1840, with 1 metric lieue being exactly 4,000 m, or 4 km (about 2.5 mi). [4] It is this unit that is referenced in both the title and the body text of Jules Verne's novel Twenty Thousand Leagues Under the Seas (1870). [5]
Other points on the Plateau also rise to depths of less than 55 metres (30 fathoms). [12] The summit plateau mostly consists of hard rock, like the upper slopes, [11] with rocky outcrops separated by sandy plains. [15] The plateau appears to be a wave-cut platform of Pleistocene age, when sea levels were lower, [3] and is swept by strong ocean ...
In the FFF system, heat transfer coefficients are conventionally reported as BTU per foot-fathom per degree Fahrenheit per fortnight. [c] Thermal conductivity has units of BTU per fortnight per furlong per degree Fahrenheit. Like the more common furlong per fortnight, [4] a firkin per fortnight can refer to "any obscure unit". [10]
One square fathom was equal to 3.546 m 2 and one square mile was equal to 56.7383 km 2, as they were defined by their metric equivalents. [1] Some other units are given below: [1] 1 square inches = 1 ⁄ 5,184 square fathom; 1 square feet = 1 ⁄ 36 square fathom; 1 square alin = 1 ⁄ 9 square fathom; 1 túndagslátta = 900 square fathom