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  2. Tape correction (surveying) - Wikipedia

    en.wikipedia.org/wiki/Tape_correction_(surveying)

    This means that the tape changes length by 1.16 mm per 10 m tape per 10 °C change from the standard temperature of the tape. For a 30 meter long tape with standard temperature of 20 °C used at 40 °C, the change in length is 7 mm over the length of the tape.

  3. Audio tape specifications - Wikipedia

    en.wikipedia.org/wiki/Audio_tape_specifications

    The first commonly available increase in tape length resulted from a reduction in backing thickness from 1.5 to 1.0 mil (38 to 25 μm) resulting in a total thickness reduction from 42 to 35 μm (1.7 to 1.4 mils), which allowed 3,600 ft (1,100 m), 1,800 ft (550 m), and 900 ft (270 m) tapes to fit on ten-and-a-half-, seven-, and five-inch reels respectively.

  4. Tape measure - Wikipedia

    en.wikipedia.org/wiki/Tape_measure

    The first patented long tape measure in the United States was granted on 10 July 1860 to William H. Paine, and produced by George M. Eddy and Company. [12] This design lacked any measurement points on it. Instead, it functioned as a singular unit of measurement, with the entire length of the tape representing a fixed distance. [13]

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  6. Compact Cassette tape types and formulations - Wikipedia

    en.wikipedia.org/wiki/Compact_Cassette_tape...

    The magnetic layer of a ferric tape consists of around 30% synthetic binder and 70% magnetic powder — acicular (oblong, needle-like) particles of gamma ferric oxide (γ-Fe 2 O 3), with a length of 0.2 μm to 0.75 μm. [32] Each particle of such size contains a single magnetic domain. [33]

  7. Cassette tape - Wikipedia

    en.wikipedia.org/wiki/Cassette_tape

    Tape length usually is measured in minutes of total playing time. Many of the varieties of blank tape were C60 (30 minutes per side), C90 (45 minutes per side) and C120 (60 minutes per side). [1] Maxell makes 150-minute cassettes (UR-150) - 75 minutes per side.

  8. Diameter tape - Wikipedia

    en.wikipedia.org/wiki/Diameter_tape

    To measure the diameter of a tree, the diameter tape (diameter side facing user) is wrapped around the tree, in the plane perpendicular to the axis of the trunk at 4.5 feet (1.4 m) above ground (or 4.27 feet (1.30 m), depending on the location) . Where the number "0" aligns with the rest of the tape, the diameter can be read directly from the ...

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