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  2. 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).

  3. Hawaiian scale - Wikipedia

    en.wikipedia.org/wiki/Hawaiian_scale

    Thus, a "3-foot" wave is roughly six feet high (in actuality a height of ~1.8 m), i.e., head-high to a 6-foot (~180 cm) person; a "2-foot" wave is roughly four feet high (height of ~1.2 m), i.e., chest-high to such a person; and a "6- to 8-foot" wave would be 2 to approaching 3 times head-high to such a person (height of ~3.5 to 5 m). As wave ...

  4. Average human height by country - Wikipedia

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

    Conscripts, 19 (N= m:12,447, Median= m:178.0 cm (5 ft 10 in), SD= m:6.52 cm (2.6 in)) 1.5%: Measured: 2009 [189] Switzerland: 175.4 cm (5 ft 9 in) 164 cm (5 ft 4 + 1 ⁄ 2 in) 1.07: 20–74: 88.8%: Self-reported: 1987–1994 [187] Taiwan: 171.4 cm (5 ft 7 + 1 ⁄ 2 in) 159.9 cm (5 ft 3 in) 1.07: 17 (N= m:200 f:200) 0.0%: Measured: 2011 [190 ...

  5. Human height - Wikipedia

    en.wikipedia.org/wiki/Human_height

    Height measurement using a stadiometer. Human height or stature is the distance from the bottom of the feet to the top of the head in a human body, standing erect.It is measured using a stadiometer, [1] in centimetres when using the metric system or SI system, [2] [3] or feet and inches when using United States customary units or the imperial system.

  6. Display size - Wikipedia

    en.wikipedia.org/wiki/Display_size

    Common screen dimensions are listed in the table below (the most common diagonal dimensions in inches as of 2020 are bolded). If the display is not listed, then the following equations can be used. Note that D is the diagonal (in centimeters or inches), W is the width (in pixels), and H is the height (in pixels).

  7. 80-meter band - Wikipedia

    en.wikipedia.org/wiki/80-meter_band

    The 80 meter or 3.5 MHz band is a span of radio frequencies allocated for amateur use, from 3.5–4.0 MHz in North and South America (IARU and ITU Region 2); generally 3.5–3.8 MHz in Europe, Africa, and northern Asia (Region 1); and 3.5–3.9 MHz in south and east Asia and the eastern Pacific (Region 3).

  8. Shaku (unit) - Wikipedia

    en.wikipedia.org/wiki/Shaku_(unit)

    The shaku had been standardized as 30.3 cm (11.93 in) since 1891. [5] This means that there are about 3.3 shaku (10 ⁄ 33) to one meter. [6] [7]This definition was established by Meiji government law; until then, even though the unit was given the same name, its length varied depending on the era.

  9. Arm span - Wikipedia

    en.wikipedia.org/wiki/Arm_span

    Arm span or reach (sometimes referred to as wingspan, or spelled armspan) is the physical measurement of the length from one end of an individual's arms (measured at the fingertips) to the other when raised parallel to the ground at shoulder height at a 90° angle. The arm span measurement is usually very close to the person's height.