Can you see it?

Comments

• ashenone@lemmy.ml ⁨1⁩ ⁨day⁩ ago

  Glad I made it to the end. Totally worth it

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  • Uebercomplicated@lemmy.ml ⁨1⁩ ⁨day⁩ ago

    This is an evil comment

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• Big_Boss_77@fedinsfw.app ⁨1⁩ ⁨day⁩ ago

  Reminds me of the conundrum of being unable to measure shoreline

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  • Akasazh@lemmy.world ⁨1⁩ ⁨day⁩ ago

    Alan Davies (of qi fame) once made a documentary where he tried to measure the length of a piece of string, the shoreline issue also comes up.

    www.bbc.co.uk/programmes/p00whwmc

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  • Naz@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

    0. Imagine an island (e.g: Bermuda, Hook Island, Sardinia, etc)

    1. Draw a square or rectangle approximating all of the land not currently touching water (e.g: All pixels must not contain water)

    2. Draw a larger red square encompassing the smaller red square or rectangle.

    3. Subtract any brown, green, or “land” pixels, and add them to the total count of Box_1.

    4. Remove green, blue and other “water” pixels from Box_2.

    5. Your final result will be a red outline precisely mapping the coastline of the island in question. You can now measure distance by taking pixels and multiplying by the scale of the zoom-distance (parralax).

    Image

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    • mushroomman_toad@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

      This measurement is a factor of pixel size. As resolution increases and pixel width approaches 0, the shoreline length approaches infinity.

      Though I guess you’d eventually run into the problem of clearly defining the shoreline once you’re distinguishing between water molecules and grains of sand. is the water between the sand molecules part of the ocean? How concave is the boundary on the stretches between sand grains?

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      • -> View More Comments
    • FishFace@piefed.social ⁨1⁩ ⁨day⁩ ago

      Over a very broad range of scales (like, from the scale of 10km down to the scale of 1mm) the number of boundary pixels of a natural shape like an island increases according to a power law as you increase the resolution.

      This means that your approach doesn’t give you an objective value because it depends so strongly on the resolution.

      This way of computing the length of a boundary leads to the concept of box-counting dimension. When you increase the resolution of the pixel grid, you’ll get a larger number of pixels on the boundary. Keep refining the grid many times. Graph the log of the total number of pixels against the log of the number of boundary pixels. The box counting dimension is the slope of that graph.

      Why would we call this “dimension”? Because if you do this to a line, the slope is 1, and if you do it to a square, the slope is 2.

      More information: https://en.wikipedia.org/wiki/Fractal_dimension?wprov=sfla1

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  • stupidcasey@lemmy.world ⁨1⁩ ⁨day⁩ ago

    Just get a small enough ruler either you’ll measure the shoreline or you’ll disprove calculus either way it’s not nothin’

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    • marcos@lemmy.world ⁨1⁩ ⁨day⁩ ago

      Well, if you get a small enough ruler you will already disprove quantum physics. No need to use it for anything.

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    • Klear@piefed.world ⁨1⁩ ⁨day⁩ ago

      At best you’ll disprove shoreline.

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• Aarkon@discuss.tchncs.de ⁨1⁩ ⁨day⁩ ago

  Fractal shorelines. Always a pleasure to behold.

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  • applebusch@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago

    hmm yes this beach is made of beach

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    • 0ops@piefed.zip ⁨1⁩ ⁨day⁩ ago

      Son of a beach

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• ivanafterall@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Does a nude woman jiggling down a beach not count as NSFW anymore!?

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• MeatPilot@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

  Image

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• Raiderkev@lemmy.world ⁨1⁩ ⁨day⁩ ago

  It took me a while, but the payoff when it finally gets there is great.

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• raspberriesareyummy@lemmy.world ⁨1⁩ ⁨day⁩ ago

  No I can’t see it. Anyone willing to enlighten me?

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  • Treczoks@lemmy.world ⁨1⁩ ⁨day⁩ ago

    Same here.-

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• Makeshift@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

  This successfully hurt my brain.

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• Imke@feddit.org ⁨1⁩ ⁨day⁩ ago

  You fucker

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• gandalf_der_12te@feddit.org ⁨1⁩ ⁨day⁩ ago

  infinite real estate! how practical :D

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• pineapplelover@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

  This made me research the coastline paradox

  www.youtube.com/watch?v=7dcDuVyzb8Y

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  • MathiasTCK@lemmy.world ⁨1⁩ ⁨day⁩ ago

    This made me research the coastline paradox

    en.wikipedia.org/wiki/Coastline_paradox

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• Admetus@sopuli.xyz ⁨1⁩ ⁨day⁩ ago

  Infuriating but pretty cool

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• Zier@fedia.io ⁨1⁩ ⁨day⁩ ago

  It's Fractal Beach, DUH!

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• SaltyIceteaMaker@lemmy.ml ⁨1⁩ ⁨day⁩ ago

  damn. only found out its a gif due to other comments, for me its just a static image

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• Arachnidbrilliant@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

  Alright…… I fell for that.

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• Phantaloons@piefed.zip ⁨22⁩ ⁨hours⁩ ago

  ENHAAAAAAAAAAA

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• Resonosity@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

  Thanks I hate it

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• melsaskca@lemmy.ca ⁨1⁩ ⁨day⁩ ago

  Those are turtles!

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• Misty@lemy.lol ⁨1⁩ ⁨day⁩ ago

  I’m still squinting to see…

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• helpImTrappedOnline@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Crime shows; Pull up the satilight view. Zoom in. There, what’s that spec? Enhance. There’s our guy, move out!

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• Glitterkoe@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Unexpected Dumpert.nl

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