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  2. Metre-stick - Wikipedia

    en.wikipedia.org/wiki/Metre-stick

    The folding carpenters' rulers used in Scandinavia are sometimes equipped with double measurements, metric and imperial on both sides, also functioning as a handy conversion table, accounting for its Scandinavian term: Tommestokk/tumstock (thumb (inch) stick), [4] a term with the same meaning that is also used in Dutch: duimstok. Metric only ...

  3. 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.

  4. Orders of magnitude (length) - Wikipedia

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

    2.100 Mmlength of proposed Iran-Pakistan-India gas pipe; 2.100 Mm – distance from Casablanca to Rome; 2.288 Mmlength of the official Alaska Highway when it was built in the 1940s [163] 3.069 Mmlength of Interstate 95 (from Houlton, Maine, to Miami, Florida) 3.846 Mmlength of U.S. Route 1 (from Fort Kent, Maine, to Key West ...

  5. Measurement - Wikipedia

    en.wikipedia.org/wiki/Measurement

    Four measuring devices having metric calibrations. Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events. [1] [2] In other words, measurement is a process of determining how large or small a physical quantity is as compared to a basic reference quantity of the same kind. [3]

  6. Metre - Wikipedia

    en.wikipedia.org/wiki/Metre

    The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of ⁠ 1 / 299 792 458 ⁠ of a second, where the second is defined by a hyperfine transition frequency of caesium.

  7. History of the metre - Wikipedia

    en.wikipedia.org/wiki/History_of_the_metre

    At that time, units of measurement were defined by primary standards, and unique artifacts made of different alloys with distinct coefficients of expansion were the legal basis of units of length. A wrought iron ruler, the Toise of Peru, also called Toise de l'Académie, was the French primary standard of the toise, and the metre was officially ...