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  2. Rack unit - Wikipedia

    en.wikipedia.org/wiki/Rack_unit

    Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

  3. Average human height by country - Wikipedia

    en.wikipedia.org/wiki/Average_human_height_by...

    168.2 cm (5 ft 6 in) 155.3 cm (5 ft 1 in) 1.08: 18–69 (N= m:1,979 f:1,687) 97.2%: Measured: 2018 [11] Albania: 176.6 cm (5 ft 9 + 1 ⁄ 2 in) 166.8 cm (5 ft 5 + 1 ⁄ 2 in) 1.06: 18–41 (N= m:266(18–41) f:179(18–36), SD= m:7.36 cm (2.9 in) f:9.41 cm (3.7 in)) 52.7%: Measured: 2020 [12] Albania: 174 cm (5 ft 8 + 1 ⁄ 2 in) 161.8 cm (5 ft ...

  4. Aspect ratio (image) - Wikipedia

    en.wikipedia.org/wiki/Aspect_ratio_(image)

    Aspect ratio (image) The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are 1.85:1 and 2.40:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography.

  5. Body surface area - Wikipedia

    en.wikipedia.org/wiki/Body_surface_area

    The estimations in the above tables are based weight and height data from the U.S. NCHS National Health and Nutrition Examination Survey (2011-2014). [18] There was an average BSA of 1.73 m 2 for 3,000 cancer patients from 1990 to 1998 in a European Organisation for Research and Treatment of Cancer (EORTC) database. [19]

  6. Orders of magnitude (length) - Wikipedia

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

    The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres (⁠ 1 100 ⁠ m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.

  7. 19-inch rack - Wikipedia

    en.wikipedia.org/wiki/19-inch_rack

    The size denotes the width of the faceplate for the installed equipment. The rack unit is a measure of vertical spacing and is common to both the 19 and 23-inch racks. Hole spacing is either on 1-inch (25 mm) centers (Western Electric standard), or the same as for 19-inch (482.6 mm) racks (0.625 in or 15.9 mm spacing).

  8. Height in sports - Wikipedia

    en.wikipedia.org/wiki/Height_in_sports

    The average height of an NHL player is just over 6 ft 1 in (1.85 m) tall. Zdeno Chára, at 6 ft 9 in (2.06 m), is the tallest player ever to play in the NHL. In recent years, the height of goaltenders has increased as taller goaltenders can cover a larger portion of the goal when on their knees in the butterfly goaltending style.

  9. List of shortest players in NBA history - Wikipedia

    en.wikipedia.org/wiki/List_of_shortest_players...

    The shortest player ever in the old American Basketball Association (1967–76) was Penny Ann Early, a 5-foot-3-inch (160 cm) jockey who took part in one play in one game for the Kentucky Colonels as a publicity stunt in 1969. (The shortest signed ABA players were Jerry Dover and Monte Towe, both 5 feet 7 inches or 170 centimetres.)