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20 mm / 50 m = 0.4 mrad, or 4 clicks with a 1 / 10 mrad adjustment scope. 50 mm / 1000 m = 0.05 mrad, or 1 click with a 0.05 mrad adjustment scope. In firearm optics, where 0.1 mrad per click is the most common mrad based adjustment value, another common rule of thumb is that an adjustment of 1 / 10 mrad changes ...
The nautical mile (nmi) was originally ... the scope needs to be adjusted 3 × 2 = 6 clicks down and 1.5 x 2 = 3 clicks right; ... 20 mm 2 cm 0.79 in 0.72 in 1′ 1.0′
The diving gear used by passengers on the Nautilus is presented as a combination of two existing systems: 1) the surface-supplied [12] hardhat suit, which was fed oxygen from the shore through tubes; 2) a later, self-contained apparatus designed by Benoit Rouquayrol and Auguste Denayrouze in 1865.
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The French lieue — at different times — existed in several variants, namely 10,000, 12,000, 13,200 and 14,400 French feet, about 3.25 to 4.68 km (2.02 to 2.91 miles). It was used along with the metric system for a while, but is long discontinued.
They then progressed to the "faster step" or "full pace" [3] and were required to complete 24 Roman miles (35.544 km or 22.086 modern miles) in five summer hours loaded with 20.5 kilograms (45 lb). Training also included some forced marches of 20–30 miles, often followed by the construction of basic defences for an overnight position.
The destinations listed can range from a short distance away, such as a few miles or kilometers, to long distances away, from several hundred or even thousands of miles or kilometers away. Unlike most road signs, mileage signs remain roughly consistent throughout the world, with the only differences being background colors on signs and the ...
In the United States the pace is an uncommon customary unit of length denoting a brisk single step and equal to 2 + 1 ⁄ 2 feet or 30.0 inches or 76.2 centimetres. [ 3 ] [ 4 ] The Ancient Roman pace ( Latin : passus ) was notionally the distance of a full stride from the position of one heel where it raised off of the ground to where it set ...