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  2. Orders of magnitude (length) - Wikipedia

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

    10 kilometers is equal to: Distance marker on the Rhine: 36 (XXXVI) myriameters from Basel. The stated distance is 360 km (220 mi); the comma is the decimal separator in Germany. 10,000 meters; About 6.2 miles; 1 mil (the Scandinavian mile), now standardized as 10 km:

  3. Angstrom - Wikipedia

    en.wikipedia.org/wiki/Angstrom

    Portrait of Anders Ångström [15]. In 1868, Swedish physicist Anders Jonas Ångström created a chart of the spectrum of sunlight, in which he expressed the wavelengths of electromagnetic radiation in the electromagnetic spectrum in multiples of one ten-millionth of a millimetre (or 10 −7 mm.) [16] [17] Ångström's chart and table of wavelengths in the solar spectrum became widely used in ...

  4. Nanometre - Wikipedia

    en.wikipedia.org/wiki/Nanometre

    The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm), or nanometer (American spelling), is a unit of length in the International System of Units (SI), equal to one billionth (short scale) of a meter (0.000000001 m) and to 1000 picometres.

  5. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    The angstrom (symbol Å) is a unit of distance used in chemistry and atomic physics equal to 100 pm. The micron (μ) is a unit of distance equal to one micrometre (1 μm). The basic module (M) is a unit of distance equal to one hundred millimetres (100 mm). The myriametre (mym) is a unit of distance equal to ten kilometres (10 km).

  6. Millimetre - Wikipedia

    en.wikipedia.org/wiki/Millimetre

    mm: Named after: The metric prefix mille (Latin for "one thousand") and the metre: Conversions 1 mm in ..... is equal to ... micrometres 1 × 10 3 μm = 1000 μm centimetres 1 × 10 −1 cm = 0.1 cm metres 1 × 10 −3 m = 0.001 m kilometres 1 × 10 −6 km inches 0.039 370 in feet 0.003 2808 ft

  7. Unit of length - Wikipedia

    en.wikipedia.org/wiki/Unit_of_length

    Earth radius R 🜨 ≈ 6,371 km [9] Lunar distance LD ≈ 384 402 km. [10] Average distance between the center of Earth and the center of the Moon. astronomical unit au. Defined as 149 597 870 700 m. [11] Approximately the distance between the Earth and Sun. light-year ly ≈ 9 460 730 472 580.8 km. The distance that light travels in a vacuum ...

  8. Orders of magnitude (molar concentration) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(molar...

    10 −3 M mM millimolar 10 3 M kM kilomolar 10 −6 M μM micromolar 10 6 M MM megamolar 10 −9 M nM nanomolar 10 9 M GM gigamolar 10 −12 M pM picomolar

  9. Mean free path - Wikipedia

    en.wikipedia.org/wiki/Mean_free_path

    whose solution is known as Beer–Lambert law and has the form = /, where x is the distance traveled by the beam through the target, and I 0 is the beam intensity before it entered the target; â„“ is called the mean free path because it equals the mean distance traveled by a beam particle before being stopped.