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They arrived at a figure for the solar parallax of 9 ± 2 arcseconds, [Note 2] equivalent to an Earth–Sun distance of about 23,000 Earth radii. [28] [Note 3] They were also the first astronomers to have access to an accurate and reliable value for the radius of Earth, which had been measured by their colleague Jean Picard in 1669 as 6,365.6 ...
The location marker posts are installed at 100-meter intervals. [ 130 ] The hectometre ( SI symbol: hm ) is a unit of length in the metric system equal to 100 meters (10 2 m).
If he used al-Ma'mun's surveying cubit, it was 1,925 meters long or 1.04 nautical miles (1.93 km) [1] During the Umayyad period (661–750), the "Umayyad mile" was roughly equivalent to 2,285 metres (7,497 ft), or a little more than 2 kilometres (6,600 ft), or about 2 biblical miles , for every Umayyad mile.
0.0876 m 2 0.943 sq ft scrupulum or decempeda quadrata 100 pedes qu. 8.76 m 2 94.3 sq ft the square of the standard 10-foot measuring rod actus simplex 480 pedes qu. 42.1 m 2 453 sq ft 4 × 120 pedes [12] uncia 2,400 pedes qu. 210 m 2 2,260 sq ft clima 3,600 pedes qu. 315 m 2 3,390 sq ft 60 × 60 pedes [12]
The 182.2-smoot (1,017 ft 3 in; 310.1 m) mark is accompanied by the words "Halfway to Hell" and an arrow pointing towards MIT. The markings are recognized as milestones on the bridge, to the degree that during bridge renovations in the 1980s, the Cambridge, Massachusetts, police department requested that the markings be restored, since they ...
The hectometre, (SI symbol: hm [1]), spelt hectometer in American and Philippine English, is a unit of length in the International System of Units (SI), equal to one hundred metres [2] and to one tenth of a kilometre. The word comes from a combination of "metre" and the SI prefix "hecto-", meaning "hundred". [3] It is not commonly used in English.
[2] 1:285/1:300 is a popular scale for micro armour games, while modern games emphasizing tanks and other vehicles have been catered to by specialist figure manufacturers such as GHQ, Heroics and Ros and Baccus Miniatures. Sci-fi and fantasy games that use these scales include BattleTech, Ogre miniatures, [3] Epic [4] and Hammer's Slammers. [5]
1 dramme = 3.2 g 1 livre (also known as a pound [2]) (Venetian) = 450 g 1 mina = 1.5 kg 1 royal mine 1.5 kg 1 oka = 0.85331 royal mine = 1.280 kg [1] [2] [3] = 1 stater = 56.32 kg 1 talanton = 150 kg. One cantaro was equal to 44 oke, but the value varied from 112 to 128 lb depending on locality. [4] [3] One tseki was 176 oka in Istanbul and 136 ...