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  2. Orders of magnitude (length) - Wikipedia

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

    1.435 m – standard gauge of railway track used by about 60% of railways in the world = 4 ft 8 1 ⁄ 2 in; 2.5 m – distance from the floor to the ceiling in an average residential house [119] 2.7 m – length of the Starr Bumble Bee II, the smallest plane; 2.77–3.44 m – wavelength of the broadcast radio FM band 87–108 MHz

  3. Picometre - Wikipedia

    en.wikipedia.org/wiki/Picometre

    The picometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the International System of Units (SI), equal to 1 × 10 −12 m, or one trillionth (⁠ 1 / 1 000 000 000 000 ⁠) of a metre, which is the SI base unit of length.

  4. Olympic-size swimming pool - Wikipedia

    en.wikipedia.org/wiki/Olympic-size_swimming_pool

    2 m (6 ft 7 in) minimum, 3 m (9 ft 10 in) recommended when using the pool for multi discipline. [3] Number of lanes: 10 Lane width: 2.5 m (8 ft 2 in) Water temperature: 25–28 °C (77–82 °F) Light intensity: minimum 1500 lux (140 footcandles) Volume: 2,500,000 L (2,500 m 3; 660,000 US gal), assuming a nominal depth of 2 m. About 2 acre-feet.

  5. Iambic pentameter - Wikipedia

    en.wikipedia.org/wiki/Iambic_pentameter

    Iambic pentameter (/ aɪ ˌ æ m b ɪ k p ɛ n ˈ t æ m ɪ t ər / eye-AM-bik pen-TAM-it-ər) is a type of metric line used in traditional English poetry and verse drama. The term describes the rhythm, or meter, established by the words in each line. Rhythm is measured in small groups of syllables called "feet".

  6. Metric system - Wikipedia

    en.wikipedia.org/wiki/Metric_system

    An SI derived unit is a named combination of base units such as hertz (cycles per second), newton (kg⋅m/s 2), and tesla (1 kg⋅s −2 ⋅A −1) and in the case of Celsius a shifted scale from Kelvin. Certain units have been officially accepted for use with the SI.

  7. Dactylic hexameter - Wikipedia

    en.wikipedia.org/wiki/Dactylic_hexameter

    Dactylic hexameter (also known as heroic hexameter and the meter of epic) is a form of meter or rhythmic scheme frequently used in Ancient Greek and Latin poetry. The scheme of the hexameter is usually as follows (writing – for a long syllable, u for a short, and u u for a position that may be a long or two shorts):

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    mail.aol.com

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  9. Quintuple meter - Wikipedia

    en.wikipedia.org/wiki/Quintuple_meter

    Simple quintuple meter can be written in 5 4 or 5 8 time, but may also be notated by using regularly alternating bars of triple and duple meters, for example 2 4 + 3 4.Compound quintuple meter, with each of its five beats divided into three parts, can similarly be notated using a time signature of 15