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Klaymore@sh.itjust.works to linuxmemes@lemmy.worldEnglish · 1 year ago

I bet the rest of the world has better paper

sh.itjust.works

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I bet the rest of the world has better paper

sh.itjust.works

Klaymore@sh.itjust.works to linuxmemes@lemmy.worldEnglish · 1 year ago
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  • Mubelotix
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    1 year ago

    Well yes, the rest of the world does have better paper. 21×29.7, the only ratio to conserve itself when halving the sheet

    • Tangent5280@lemmy.world
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      1 year ago

      Wait, is that true? Is there something special about that ratio in particular that lets it conserve ratio when dividing?

      • tryptaminev 🇵🇸 🇺🇦 🇪🇺@feddit.de
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        1 year ago

        ISO 216 Paper

        • itslilith@lemmy.blahaj.zone
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          1 year ago

          And IIRC, A0 is 1m²

          • the_seven_sins@feddit.de
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            1 year ago

            There also is B0, which is exactly 1 by the root of 2 meters.

          • Klear@sh.itjust.works
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            1 year ago

            Beautiful.

      • cygnus@lemmy.ca
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        1 year ago

        Yes it’s true. It’s the square root of 2, which is why it works.

        • Mubelotix
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          1 year ago

          Legend has it that Leonardo da Vinci came up with it

          • KISSmyOS@lemmy.world
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            1 year ago

            deleted by creator

      • joshfaulkner@lemmy.world
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        1 year ago

        Here’s a fun CGP Grey video on the matter: https://youtu.be/pUF5esTscZI?si=9czdx4u8jWruZoui

        • yukijoou@lemmy.blahaj.zone
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          1 year ago

          untrackered link: https://youtu.be/pUF5esTscZI

          • PipedLinkBot@feddit.rocksB
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            1 year ago

            Here is an alternative Piped link(s):

            https://piped.video/pUF5esTscZI

            Piped is a privacy-respecting open-source alternative frontend to YouTube.

            I’m open-source; check me out at GitHub.

        • PipedLinkBot@feddit.rocksB
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          1 year ago

          Here is an alternative Piped link(s):

          https://piped.video/pUF5esTscZI?si=9czdx4u8jWruZoui

          Piped is a privacy-respecting open-source alternative frontend to YouTube.

          I’m open-source; check me out at GitHub.

      • UndercoverUlrikHD@programming.dev
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        1 year ago

        Here you go, proof at ~2 min in.

        Edit: for those who don’t want to use YouTube anymore. If a is the long side and b is the short side of a rectangle. Halving the rectangle will make the long side b and the short side 1/2 a. If the ratio is preserved when halving, we get:

        a/b=b/(1/2 a)

        a2*=2*b2

        a2*/*b2=2

        a/b=sqrt(2)

        • PipedLinkBot@feddit.rocksB
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          1 year ago

          Here is an alternative Piped link(s):

          Here you go, proof at ~2 min in.

          Piped is a privacy-respecting open-source alternative frontend to YouTube.

          I’m open-source; check me out at GitHub.

      • BastingChemina@slrpnk.net
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        1 year ago

        Yes, this particular ratio allows the fact that you can fold a A3 paper in two and get two A4 sheet

      • SmokeyDope@lemmy.world
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        1 year ago

        Besides the Grey video heres an oldie but goodie Numberphile video about it

        • PipedLinkBot@feddit.rocksB
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          1 year ago

          Here is an alternative Piped link(s):

          Numberphile video

          Piped is a privacy-respecting open-source alternative frontend to YouTube.

          I’m open-source; check me out at GitHub.

      • Lifter@discuss.tchncs.de
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        1 year ago

        It’s called the Golden Ratio and has a lot of neat properties! Da Vinci and other nerds love(d) using it in art.

    • Zerush@lemmy.ml
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      Relation 1 to SQR 2, from A0 of 1m2 to A5 letter format (A4, A5 most used in the EU), every time the half of the next bigger format. Easy to remember.

      https://www.papersizes.org/a-paper-sizes.htm

    • uis@lemmy.world
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      I didn’t know there are part of the world which doesn’t put A4 in their printers

    • 30p87@feddit.de
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      1 year ago

      Our doubling.
      Which means you pretty much don’t have to think about scales at all.

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