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  2. Template:Convert/list of units/length - Wikipedia

    en.wikipedia.org/wiki/Template:Convert/list_of...

    1.0 dm (3.9 in) centimetre: cm cm US spelling: centimeter: 1.0 cm (0.39 in) cm in; millimetre: mm mm US spelling: millimeter: 1.0 mm (0.039 in) mm in; micrometre: μm (um, micrometre) μm US spelling: micrometer: 1.0 μm (3.9 × 10 −5 in) nanometre: nm nm US spelling: nanometer: 1.0 nm (3.9 × 10 −8 in) non-SI metric: ångström: Å ...

  3. Darcy (unit) - Wikipedia

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

    The darcy is referenced to a mixture of unit systems. A medium with a permeability of 1 darcy permits a flow of 1 cm 3 /s of a fluid with viscosity 1 cP (1 mPa·s) under a pressure gradient of 1 atm/cm acting across an area of 1 cm 2. Typical values of permeability range as high as 100,000 darcys for gravel, to less than 0.01 microdarcy for ...

  4. Orders of magnitude (length) - Wikipedia

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

    103: 1 millimeter ~5 mm Length of an average flea is 1–10 mm (usually <5 mm) [27] 2.54 mm One-tenth inch; distance between pins in DIP (dual-inline-package) electronic components 5.70 mm Diameter of the projectile in 5.56×45mm NATO ammunition 10 −2: 1 centimeter 20 mm Approximate width of an adult human finger: 54 mm × 86 mm

  5. Millimetre - Wikipedia

    en.wikipedia.org/wiki/Millimetre

    Different lengths as in respect to the electromagnetic spectrum, measured by the metre and its derived scales.The microwave is between 1 meter to 1 millimeter.. The millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a metre, which is the SI base unit of length.

  6. Centimetre - Wikipedia

    en.wikipedia.org/wiki/Centimetre

    Different lengths as in respect to the electromagnetic spectrum, measured by the metre and its derived scales.The microwave is in-between 1 meter to 1 millimeter.. A centimetre or centimeter (US/Philippine spelling), with SI symbol cm, is a unit of length in the International System of Units (SI) equal to one hundredth of a metre, centi being the SI prefix for a factor of ⁠ 1 / 100 ⁠. [1]

  7. Centimetre–gram–second system of units - Wikipedia

    en.wikipedia.org/wiki/Centimetre–gram–second...

    For example, according to the capacitance row of the table, if a capacitor has a capacitance of 1 F in SI, then it has a capacitance of (10 −9 c 2) cm in ESU; but it is incorrect to replace "1 F" with "(10 −9 c 2) cm" within an equation or formula. (This warning is a special aspect of electromagnetism units.

  8. Chinese units of measurement - Wikipedia

    en.wikipedia.org/wiki/Chinese_units_of_measurement

    3.2 mm 0.126 in cùn: 寸: 1 ⁄ 10: 32 mm 1.26 in Chinese inch chǐ: 尺: 1 0.32 m 12.6 in Chinese foot bù: 步: 5 1.6 m 5.2 ft Chinese pace zhàng: 丈: 10 3.2 m 3.50 yd Chinese yard yǐn: 引: 100 32 m 35.0 yd lǐ: 里: 1800 576 m 630 yd Chinese mile, this li is not the small li above, which has a different character and tone

  9. Three-dimensional space - Wikipedia

    en.wikipedia.org/wiki/Three-dimensional_space

    A sphere in 3-space (also called a 2-sphere because it is a 2-dimensional object) consists of the set of all points in 3-space at a fixed distance r from a central point P. The solid enclosed by the sphere is called a ball (or, more precisely a 3-ball). The volume of the ball is given by