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1.6 × 10 −5 quectometers (1.6 × 10 −35 meters) – the Planck length (Measures of distance shorter than this do not make physical sense, according to current theories of physics.) 1 qm – 1 quectometer, the smallest named subdivision of the meter in the SI base unit of length, one nonillionth of a meter.
Earth radius R 🜨 ≈ 6,371 km [14] Lunar distance LD ≈ 384 402 km. [15] Average distance between the center of Earth and the center of the Moon. astronomical unit au. Defined as 149 597 870 700 m. [16] Approximately the distance between the Earth and Sun. light-year ly ≈ 9 460 730 472 580.8 km. The distance that light travels in a vacuum ...
Sometimes hiro is used equal to 5 shaku [19] ( 50 / 33 m, ~1.5152 metres). The traditional units are still used for construction materials in Japan. For example, plywood is usually manufactured in 182 cm × 91 cm (about 72 in × 36 in ) sheets known in the trade as saburokuhan ( 3 × 6版 ) , or 3 × 6 shaku .
0.74 m 2.427 ft passus pace: 5 pedes 1.48 m 4.854 ft decempeda pertica: perch: 10 pedes 2.96 m 9.708 ft actus: path, track 120 pedes 35.5 m 116.496 ft 24 passus or 12 decembeda stadium: stade 625 pedes 185 m 607.14 ft 600 Greek feet or 125 passus or 1 ⁄ 8 mille [7] mille passus mille passuum mile: 5,000 pedes 1.48 km 4,854 ft
The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 / 299 792 458 of a second , where the second is defined by a hyperfine transition frequency of ...
Following the 30-stadia definition of Herodotus and Xenophon, the parasang would be equal to either 5.7 km (Olympic measure) or 5.3 km (Attic measure). [1] But in 1920, Kenneth Mason of the Royal Geographical Society deduced that the parasang used in Xenophon's Babylonian travel accounts was equal to only 2.4 miles (3.9 km). [13]
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kyndemil – the distance a torch will last, approx 16 km (9.9 mi). skogsmil, rast – distance between rests in the woods, approx. 5 km (3.1 mi). fjärdingsväg – 1 ⁄ 4 mil. stenkast – "stone's throw", about 50 m (164 ft), used to this day as an approximate measure. rev – 160 fot, for land measurement, was 100 fot after 1855.