• TeckFire@lemmy.world
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    10 months ago

    nHz is Nanohertz 1/1,000,000,000 Hz (Billionth)

    µHz is Microhertz 1/1,000,000 Hz (Millionth)

    mHZ is Millihertz 1/1,000 Hz (Thousandth)

    Hz is Hertz 1 Hz (Base Unit, one per second)

    kHz is Kilohertz 1,000 Hz (Thousand)

    MHz is Megahertz 1,000,000 Hz (Million)

    GHz is Gigahertz 1,000,000,000 Hz (Billion)

    THz is Terahertz 1,000,000,000,000 Hz (Trillion)

    I suppose there are probably more that I’m not aware of, but I hope this clears it up.

    • ඞmir
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      10 months ago

      No, that absolutely does not resolve the confusion between meter (m) and milli (m)

      • TeckFire@lemmy.world
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        10 months ago

        I feel like a dumbass

        I totally read your comment as “Megahertz or Millihertz”

        Now I realize it should just be Meters•Herts or m•Hz

      • psud@lemmy.world
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        10 months ago

        Standing alone ‘m’ is metre.

        With a decimal modifier ahead of it, ‘m’ is metre

        Immediately before a symbol it is milli (one thousandth)

        mm - the first m is before the metre symbol, it is the milli multiplier, the second m is after a multiplier, so it is the symbol for metre

        mHz - the m is before the symbol Hz (for Hertz) so it is the milli multiplier

        km - the m is after the K (kilo, thousand times) multiplier, so it is metre

        You probably spell metre ‘meter’, but a meter is a whole different word in English

      • Phil_in_here@lemmy.ca
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        10 months ago

        I think there’s something like 43/500ths of a Bigole Hertz to a regular Hertz; but that’s if you’re using English Bigoles. I think it’s 43.9/500ths for a US Bigole.

      • lolcatnip@reddthat.com
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        10 months ago

        I’m American and I’ve never seen any other unit used for frequency unless you count adjectives like “daily”.

      • psud@lemmy.world
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        10 months ago

        RPM (revolutions per minute) is an old rotational measure

        But the second is the same in both systems so I wouldn’t be surprised if America called revs per second “Hertz”