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  2. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    To help compare different orders of magnitude, this section lists lengths between 10 −3 m and 10 −2 m (1 mm and 1 cm). 1.0 mm1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly) 1.0 mm – side of a square of area 1 mm²; 1.0 mm – diameter of a pinhead; 1.5 mm – average length of a flea [27]

  3. Divisibility rule - Wikipedia

    en.wikipedia.org/wiki/Divisibility_rule

    To test for divisibility by D, where D ends in 1, 3, 7, or 9, the following method can be used. [12] Find any multiple of D ending in 9. (If D ends respectively in 1, 3, 7, or 9, then multiply by 9, 3, 7, or 1.) Then add 1 and divide by 10, denoting the result as m. Then a number N = 10t + q is divisible by D if and only if mq + t is divisible ...

  4. 7 mm caliber - Wikipedia

    en.wikipedia.org/wiki/7_mm_caliber

    26.92 (1.06) 7.5 FK BRNO [2] 2014: 7.8 mm (.307) rimless bottleneck: 27.0 (1.063)-10.8 (.425) 10.8 (.425)-35.0 (1.378) .30 AMP 7.62----- 7.62×42mm: 2011: 7.62: rimless bottleneck: 42.0----42.0 7.65mm Roth–Sauer [1] [page needed] 1901: 7.645 (.301) rimless straight: 12.95 (0.51) 8.51 (.335) 8.51 (.335)-8.43 (.332) 21.34 (0.84) 7.62×25mm ...

  5. Dividing a circle into areas - Wikipedia

    en.wikipedia.org/wiki/Dividing_a_circle_into_areas

    The number of points (n), chords (c) and regions (r G) for first 6 terms of Moser's circle problem. In geometry, the problem of dividing a circle into areas by means of an inscribed polygon with n sides in such a way as to maximise the number of areas created by the edges and diagonals, sometimes called Moser's circle problem (named after Leo Moser), has a solution by an inductive method.

  6. Paper size - Wikipedia

    en.wikipedia.org/wiki/Paper_size

    It has the height of Canadian P4 paper (215 mm × 280 mm, about 8 + 1 ⁄ 2 in × 11 in) and the width of international A4 paper (210 mm × 297 mm or 8.27 in × 11.69 in), i.e. it uses the smaller value among the two for each side. The table shows how this format can be generalized into an entire format series.

  7. Bat - Wikipedia

    en.wikipedia.org/wiki/Bat

    The smallest bat is Kitti's hog-nosed bat (Craseonycteris thonglongyai), which is 29–34 mm (1 + 181 + 38 in) long with a 150-millimetre (6 in) wingspan and weighs 2–2.6 g (1 ⁄ 16 – 3 ⁄ 32 oz). [126] It is also arguably the smallest extant species of mammal, next to the Etruscan shrew. [127]

  8. 3 ft 6 in gauge railways - Wikipedia

    en.wikipedia.org/wiki/3_ft_6_in_gauge_railways

    3621 km 3 ft 6 in (1,067 mm) gauge (858 km or 533 mi electrified). Some converted from 1,000 mm (3 ft 3 + 38 in) and 2 ft 6 in (762 mm) gauge. Congo, Republic of: The Congo–Ocean Railway, 502 kilometres (312 mi) long (operating). Costa Rica: Operation of the national railway network was suspended in 1995 after an earthquake.

  9. Kaoma, Zambia - Wikipedia

    en.wikipedia.org/wiki/Kaoma,_Zambia

    Kaoma is now divided into three ... (91.8) 36.7 (98.1) 39.4 (102.9) 39.6 (103.3) 39.2 ... Average precipitation mm (inches) 216.3 (8.52) 192.5 (7.58) ...