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  2. Human penis size - Wikipedia

    en.wikipedia.org/wiki/Human_penis_size

    As of 2015, a systematic review of 20 studies, of up to 15,521 men, who were measured by health professionals rather than themselves, concluded that the average length of an erect human penis is 13.12 cm (5.17 in), while the average circumference of an erect human penis is 11.66 cm (4.59 in). [2] A 1996 study of flaccid length found a mean of 8 ...

  3. List of disk drive form factors - Wikipedia

    en.wikipedia.org/wiki/List_of_disk_drive_form...

    32 mm. 24 mm. 5 mm. 8 GB [27][28] (2004) 1. 8. 8-, 5.25-, 3.5-, 2.5-, 1.8- and 1-inch HDDs, together with a ruler to show the length of platters and read-write heads. A newer 2.5-inch (63.5 mm) 6,495 MB HDD compared to an older 5.25-inch full-height 110 MB HDD. IBM's first hard drive, the IBM 350, used a stack of fifty 24-inch platters and was ...

  4. Yarn weight - Wikipedia

    en.wikipedia.org/wiki/Yarn_weight

    Yarn weight refers to the thickness of yarn used by knitters, weavers, ... 5.5 - 8 6.5 - 9 Craft, Rug 6 or Super Bulky Super Chunky Less than 100 5-6 wpi >8 >9

  5. Earth's crust - Wikipedia

    en.wikipedia.org/wiki/Earth's_crust

    Earth's crust is its thick outer shell of rock, referring to less than one percent of the planet's radius and volume. It is the top component of the lithosphere, a solidified division of Earth 's layers that includes the crust and the upper part of the mantle. [1] The lithosphere is broken into tectonic plates whose motion allows heat to escape ...

  6. American wire gauge - Wikipedia

    en.wikipedia.org/wiki/American_wire_gauge

    American wire gauge. American Wire Gauge (AWG) is a logarithmic stepped standardized wire gauge system used since 1857, predominantly in North America, for the diameters of round, solid, nonferrous, electrically conducting wire. Dimensions of the wires are given in ASTM standard B 258. [1] The cross-sectional area of each gauge is an important ...

  7. Plywood - Wikipedia

    en.wikipedia.org/wiki/Plywood

    Plies vary in thickness from 1.4 mm to 4.3 mm. The number of plies—which is always odd—depends on the thickness and grade of the sheet. Roofing can use the thinner 16-millimetre (58 in) plywood. Subfloors are at least 19 millimetres (3 ⁄ 4 in) thick, the thickness depending on the distance between floor joists.

  8. Wafer (electronics) - Wikipedia

    en.wikipedia.org/wiki/Wafer_(electronics)

    Wafer thickness is determined by the mechanical strength of the material used; the wafer must be thick enough to support its own weight without cracking during handling. The tabulated thicknesses relate to when that process was introduced, and are not necessarily correct currently, for example the IBM BiCMOS7WL process is on 8-inch wafers, but ...

  9. Book size - Wikipedia

    en.wikipedia.org/wiki/Book_size

    Traditional book sizes/formats used in English-speaking countries. Based on the 19-by-24-inch or 482.5-by-609.5-millimetre printing paper size, which equals two folio leaves, four quarto leaves, eight octavo leaves, etc. For comparison, common American letter size is shown in green. Books made by printing two pages of text on each side of a ...