• daannii@lemmy.worldEnglish
    1·
    3 分钟前

    I always thought it was a rotating, wide rubber belt. Maybe with fins. Idk

    Surely that would work better. ?

      • exu@feditown.comEnglish
        16·
        2 小时前

        wireless not wirefree

        Edit: apparently Voyager doesn’t do underscores for italic?

        • f4f4f4f4f4f4f4f4@sopuli.xyzEnglish
          1·
          2 小时前

          _ It works on my end (without leading and trailing spaces) _ -> It works on my end (without leading and trailing spaces)

          • exu@feditown.comEnglish
            2·
            2 小时前

            Looks like it’s specifically when an underscore follows a normal letter instead of whitespace. Not sure if that’s as intended by the markdown spec, incorrect in Voyager or unspecifed

            With underscores:

            normal_italics_ normal italics

            With asterisks:

            normalitalics normal italics

            • Passerby6497@lemmy.worldEnglish
              1·
              1 小时前

              Looks like it’s specifically when an underscore follows a normal letter instead of whitespace. Not sure if that’s as intended by the markdown spec, incorrect in Voyager or unspecifed

              That’s almost certainly intended behavior, otherwise any underscore would trigger formatting (much like the asterisk does instead of allowing snake_case_naming

        • cavitationfetishist2@quokk.auEnglish
          21·
          4 小时前

          There’s a bit in ‘deadpool and wolverine’ where they’re in the multidimensional junkyard and characters from marvel properties with aborted film projects also end up there. So like ‘blade’, and the various attempted ‘fantastic four’ movies.

            • toynbee@piefed.socialEnglish
              4·
              3 小时前

              I actually quite liked all of them to some degree. I even enjoyed the awful CGI rubber ninjas fight scene; I know the movement was unrealistic but I was young enough that I figured it was superhuman vampire flexibility. However, I agree that the first one was the best.

              Trinity was my second introduction to Ryan Reynolds, so that helped some. (I’m pretty sure I first saw him in Van Wilder.) Also Wesley Snipes saying “gootchie goo” to a baby was pretty hilarious, though reflecting on that I’m not sure they ever explained how he got that child back to its mother.

              Also, I think Natasha Lyonne was in that. I knew I recognized her when my wife started watching OitNB, but it took me forever to figure out why.

              • SpaceNoodle@lemmy.world
                2·
                3 小时前

                Well, I guess I’m about to watch Blade 3 again.

                The “rubber ninjas” instantly ruined the film for me. That scene is seared into my memory, and takes second place after the entirety of The Phantom Menace for film betrayal.

                • toynbee@piefed.socialEnglish
                  2·
                  3 小时前

                  Like I mentioned, I honestly kind of enjoyed it as I was able to explain away the lack of reality. What really bothered me was, I think right before it, Whistler comes out with some sort of big firearm, then just stands there while a ninja knocks it out of his hands and slaps him in the face.

                  Again, I explained it away to myself (vampire ninja has superspeed, standing still was just meant to demonstrate that) but, even if that was what was intended, it just wasn’t very well done.

  • NarrativeBear@lemmy.world
    82·
    5 小时前

    Its true there is a fan in the base of all bladeless fans, but the fan is smaller then traditional fan designs and moves the same if not more air then traditional fans.

    Air is pulled in through the base and forced through a thin slit. This fast stream of air creates an area of low pressure, drawing in and amplifying surrounding air behind the slits.

    Because air “sticks” to itself, when you get some air moving (by breathing out, for example), the initial bit of air that you move “drags” some air with it from beside and behind. This is what Dyson calls “air multiplier technology”.

    Dyson uses this property of air to claim that they only have to move a fraction of air (with the fan in the base) of all the air that blows past you.

    Here is a example of how this works, and how you can use one breath to fill a large bag.

    https://www.youtube.com/watch?v=rAAelB7nN14

    Here is a image of the multiplier effect, from the original intake of air at the bottom. You can see the air is multiplied from behind and infront of the fan.

    1000063718

    • ToxicWaste@lemmy.cafeEnglish
      72·
      4 小时前

      still a miss-labeling to call them bladeless fans, just because the blades are hidden. by that logic my beef raviolis are vegetarian (tbf: the catholic church made a similar claim during the medieval ages).

      Bernoulli Fan is not only more accurate, it also sounds much cooler.

      • agamemnonymous@sh.itjust.works
        27·
        3 小时前

        To play devil’s advocate, there are no exposed blades at the point of use. I’d wager people who buy “bladeless” fans are more concerned with aesthetics and avoiding a crying toddler than they are with semantic accuracy. We call Wi-Fi “wireless” even though the router is plugged in.

        • ToxicWaste@lemmy.cafeEnglish
          3·
          3 小时前

          at work we have expensive fans with a cheap metal mesh around them - to avoid a crying co-worker. at home i have a cheap tower fan with a weird plastic mesh - there are no visible blades on it except if i crank my neck into a really uncomfortable position and shine a flashlight into it. which one of the two can i call bladeless?

          luckily i already have a devils advocate and @arctanthrope@lemmy.world dropped the name of god. how well do i need to hide my fans blade to create a Ventilationbescheißerle?

      • arctanthrope@lemmy.world
        11·
        4 小时前

        there’s a type of German meat dumplings called Herrgottsbescheißerle, which literally means “little things that bullshit the Lord” for the same reason

      • CIA_chatbot@lemmy.world
        10·
        4 小时前

        Well, Beef comes from cows, and cows only eat vegetation, so beef raviolis are vegetarian. Now, I’m not a Rocket Biologist, but I think the math here is pretty conclusive.

      • Skullgrid@lemmy.world
        2·
        3 小时前

        (tbf: the catholic church made a similar claim during the medieval ages).

        Carpinchos (capybara) are fish.

      • ToiletFlushShowerScream@piefed.worldEnglish
        1·
        4 小时前

        You know … Bernoulli Fan - that’s way better idea than a room full of MBAs from expensive business schools and months of market research and focus groups with 2 way mirrors ever came up with. Well done

    • Valmond@lemmy.dbzer0.com
      2·
      2 小时前

      Smaller fans = more noise

      And why isn’t a regular fan getting the “surrounding air” to move too? Is there a subscription for that?

      It’s most probably dyson bullshit (the moved extra air is slowing the original air down, or it’s magic) marketing.

      Magnets!

    • hOrni@lemmy.world
      27·
      4 小时前

      A traditional fan also pulls air from around its blades using the same principal. A bladeless is just a gimmick it has no actual benefits.

      Here’s a video on the subject:

      https://www.youtube.com/watch?v=ySSo5PmZZJM

      It turns out, a bladeless fan is even less efficient than a traditional one. It works better, when you remove the casing.

      • Axolotl@feddit.it
        4·
        3 小时前

        it has no actual benefits.

        • no toddler will put their hands in to it
        • can look better for some people
        • Valmond@lemmy.dbzer0.com
          4·
          2 小时前

          Toddler hands don’t go through the protection of a classic fan, if it’s built like after 1965.

          Also we were not discussing esthetics but efficiency.

    • vogi@piefed.socialOPEnglish
      23·
      4 小时前

      unironically love Lemmy for the explainers you get on a shitpost. Only stumbled on this cause I was looking it up myself. Thanks for the write up :)

          • HerbGrower@slrpnk.net
            1·
            3 分钟前

            Just like their hoovers then.

            Used to have to use one and I just don’t understand the bagless appeal. I like having a bag to contain all this awful dust. Felt like I needed to wash every time I emptied it and they fill up so fast in comparison too.

    • danc4498@lemmy.worldEnglish
      13·
      4 小时前

      It’s the same reason I use a beef bouillon cube in place of real meat when I feed my vegan friends. It’s much smaller so it doesn’t count.

    • ChaoticNeutralCzech@feddit.orgEnglish
      7·
      5 小时前

      Fans are usually loud in proportion to their speed. Quiet ceiling fans have a big diameter and many blades. Doesn’t a small fan cause a lot of noise?

      • HikingVet@lemmy.ca
        4·
        4 小时前

        Honestly depends on speed, quality of bearings and motor, blade geometry and thickness as well as any possible enclosures.

        The biggest source of noise with fans is air cavitation.

    • expatriado@lemmy.world
      3·
      4 小时前

      i don’t think the point of the post is about being useless or inefficient, but about the misleading name

  • ChaoticNeutralCzech@feddit.orgEnglish
    8·
    5 小时前

    Ionic wind generators also exist. Cool to have a particle accelerator but not very strong and catches dust (that’s why they’re called “air purifiers”)