Then picking the exact correct thing

  • @seaQueue@lemmy.world
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    502 months ago

    Here’s another: the human ear is phenomenal at determining where in 3d space a sound is coming from. Most animals can only determine direction and can’t really place a sound vertically. Watch what your cat or dog does when they’re looking for the source of a noise, it takes them a lot longer.

    • @terminhell@lemmy.world
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      52 months ago

      iirc it’s because human ears are slightly offset to each other vertically. The brain then calculates the time difference it takes each ear to hear it. Basically triangulation.

      • funkajunk
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        92 months ago

        Triangulation is 2 dimensional, the 3 dimensional equivalent would be “tetrahedralization”.

      • @davidgro@lemmy.world
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        32 months ago

        I’ve never liked this explanation because if that was all there was to it, it would still only localize to a slanted line in front of us.

        Say for example the right ear is higher (I tried finding which one normally is, but couldn’t find a good answer) in this case it would not be feasible without other clues to tell the difference between a sound being higher up and slightly to the left, or lower and slightly to the right. It’s not a significantly different situation from the ears being the same height.

        In reality there are other clues, largely based on the shape of our ears slightly changing the sound in learned ways based on the angle it comes from.

    • Caveman
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      12 months ago

      One blindspot is that the ear is not good at determining whether the sound comes directly in front or back of the head.

  • @RedditWanderer@lemmy.world
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    2 months ago

    Your tongue is also super tactile. We spend most of our toddler years discovering this.

    You can look at anything around you, anything, and your brain knows exactly what it would be like to lick it, even if you’ve never done it before. Taste, texture, residue etc… it’s quite freaky

    Oh and my thighs are really good at imagining my phone just buzzed.

  • @happydoors@lemm.ee
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    102 months ago

    Want to truly understand how good it is? Try getting a specific thing out of a pocket with a thick glove!

  • Comtief
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    22 months ago

    I disagree, if my pocket is busy I need to take things out to tell the difference between them. Also, my hands can’t tell the difference between my cards.

    • @CmdrShepard42@lemm.ee
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      42 months ago

      I wonder if this is an acquired skill. I’m reminded of working on cars and having to build “touch sight” where you “see” things hidden behind an engine block or other obstruction by feel alone.

    • @Agent641@lemmy.world
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      12 months ago

      Human balls are incredibly great at feeling immense pain at even the slightest slap with a riding crop.

    • @brokenlcd@feddit.it
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      62 months ago

      Euro coins have different knurling around the edge of the coin for accessibility reasons. It has the side effect of helping a lot when trying to find the right ones blindly in your pocket.

      • Cosmic Cleric
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        2 months ago

        Euro coins have different knurling around the edge of the coin for accessibility reasons. It has the side effect of helping a lot when trying to find the right ones blindly in your pocket.

        South America too, right?

        As an American, when I travel and see different shaped coins in different countries, some with holes in the middle even, just trips me out, seems so weird. We’re so used to standard round feels similar coins here.

        This comment is licensed under CC BY-NC-SA 4.0

    • @Zorque@lemmy.world
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      32 months ago

      A nickel is smaller and thicker, and has a smooth edge compared to the quarter. Can you not tell the difference?

      • Cosmic Cleric
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        12 months ago

        A nickel is smaller and thicker, and has a smooth edge compared to the quarter. Can you not tell the difference?

        When you’re jiggling around in your pocket for it and there’s other coins in there too, it becomes harder to do.

        I’m not saying there’s a 0% chance of figuring it out by touch alone, just that by touch identifying a coin (vs a not-coin) is a lot easier to do than by touch identifying what amount an individual coin is worth. (In the U.S. at least.)

        This comment is licensed under CC BY-NC-SA 4.0

        • @Zorque@lemmy.world
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          12 months ago

          When you’re jiggling around in your pocket for it and there’s other coins in there too, it becomes harder to do.

          Well, sure. Adding many variables usually makes anything harder to do. But that generally just means it takes a little more effort.

          Are your hands horribly mangled or something? Am I bringing up something hard for you to deal with?