• Leviathan@lemmy.world
    link
    fedilink
    arrow-up
    15
    ·
    5 hours ago

    This person’s grasp of physics is like halfway there. Like one more module and they’d calm the fuck down.

  • qjkxbmwvz@startrek.website
    link
    fedilink
    arrow-up
    16
    ·
    6 hours ago

    I think large planes “look” like they can’t work because their “relative speed” is really low — that is, their speed relative to their length. We’re used to seeing birds cover tens of lengths per second, whereas a large airliner covers ~1ish per second at takeoff.

    Or not, but this always seemed like a plausible explanation as to why planes look impossible. (Though given that hovering birds don’t look funny, maybe this is a silly observation…).

    • SoleInvictus@lemmy.blahaj.zone
      link
      fedilink
      arrow-up
      9
      ·
      5 hours ago

      That’s a really thoughtful take, I’m glad you shared. I think it has merit. I think proximity is a factor too. The public rarely gets up close to a jet, but I can attest from personal experience they seem much faster when you’re closer during takeoff and landing.

  • Echo Dot@feddit.uk
    link
    fedilink
    arrow-up
    10
    ·
    8 hours ago

    My faith in humanity is so low that I 100% believe there are planes are not real truthers that’s out there.

  • Fleur_@aussie.zone
    link
    fedilink
    arrow-up
    45
    ·
    12 hours ago

    Be human.

    Have billions of tons of atmosphere directly above you

    Don’t explode

    Make it make sense

  • pyre@lemmy.world
    link
    fedilink
    arrow-up
    31
    ·
    12 hours ago

    i remember when i thought these jokes were funny. now i know tons of people actually think like this and it’s depressing rather than funny.

  • leftzero@lemmynsfw.com
    link
    fedilink
    arrow-up
    37
    arrow-down
    1
    ·
    edit-2
    16 hours ago

    It’s not pressure under the wings, it’s fucking Bernoulli sucking on top of them.

    (So, yes, sure, it is gay, but it’s not fake.)

  • BastingChemina@slrpnk.net
    link
    fedilink
    arrow-up
    28
    ·
    17 hours ago

    Next time you see a plane imaging two hooks in the middle of the wings, a crane lifting up the plane with these two hooks and shaking it.

    This give you a good approximation of what the forces in the plane are, and once you picture that you might think that there is no way the plane can hold up in this situation. Yet it does.

  • Sunsofold
    link
    fedilink
    English
    arrow-up
    12
    ·
    15 hours ago

    …fake and gay

    Hey now. Let’s not blame gay people for the common-sense-defying demon-wizard sorcery that engineers get up to when someone threatens to take away their calculators and caffeine.

  • BananaTrifleViolin@lemmy.world
    link
    fedilink
    English
    arrow-up
    149
    arrow-down
    1
    ·
    23 hours ago

    This perfectly encapsulates how anti vaxxers and others think. “Ive thought it through and it cantnbebright”. Its incredible how we can have access to vast amounts of information and yet live in an age of gleeful ignorance.

    • throwawayacc0430@sh.itjust.works
      link
      fedilink
      English
      arrow-up
      63
      arrow-down
      1
      ·
      20 hours ago

      >Town of 100 people
      >Everyone has $50
      >Everyone stores Money In Town Bank
      >Total bank balance of everyone: $5000
      >Bank lends $1000 to a farmer to buy new equipment
      >Merchant who sold the equipment deposits $1000 into bank.
      >There is now $6000 total deposited in the bank
      >1000 just came out of thin air
      Money is fake and gay

  • Archangel@lemm.ee
    link
    fedilink
    arrow-up
    88
    ·
    23 hours ago

    Also weird how giant steel tankers float on the ocean. Especially when they’re weighed down by all that cargo. It’s practically unbelievable. I throw a tiny rock in the ocean, and it sinks…but not those giant steel boats? /s

    • ByteJunk@lemmy.world
      link
      fedilink
      arrow-up
      17
      ·
      21 hours ago

      Well… When you put one of those huge tankers in the water, it will move a LOT of water out of the way.

      As long as the tanker weights less than the weight of all that water it displaced, it will float.

      As you keep loading up the tanker with more cargo, it will go deeper into the water right? But this means that it is pushing more water out of the way (the water that used to be where the boat now is), which balances out the weight because that creates more buoyancy.

      A rock, on the other hand, is heavier than the water that it displaces, so it sinks like a tanker whose front fell off.

      • Saleh@feddit.org
        link
        fedilink
        arrow-up
        9
        ·
        edit-2
        19 hours ago

        Since we are pedantic, what you say isn’t true.

        The tanker weights exactly as much as the weight of the water that it displaces. They are in balance. You describe it yourself. The tanker sinks deeper if it becomes heavier and swims more up as it becomes lighter.

        The measure of “boat swims” is not the weight of the displaced water. It is wether there is some boat wall left sticking out of the water to keep more water from entering and displacing the air that keeps the submerged volume in weight balance with the water.

        • ByteJunk@lemmy.world
          link
          fedilink
          arrow-up
          3
          ·
          9 hours ago

          Since we’re being extra pedantic, what I said was:

          As long as the tanker weights less than the weight of all that water it displaced, it will float.

          This is factually true, and you didn’t disprove it.

          As for “boat wall sticking out of the water”, that’s just grasping at straws man. If that boat is fully waterproof, like a submarine, the definition holds up. Or if you consider that water entering the boat adds to the boat weight, then again it will hold true as it will weigh more than the water it displaces.

        • Jumi@lemmy.world
          link
          fedilink
          arrow-up
          4
          ·
          18 hours ago

          So we have rising sea levels because there’s so many big ships in the ocean, got it.

      • starman2112@sh.itjust.works
        link
        fedilink
        arrow-up
        14
        ·
        21 hours ago

        As long as the tanker weights less than the weight of all that water it displaced, it will float.

        But steel is heavier than water

      • dwindling7373@feddit.it
        link
        fedilink
        English
        arrow-up
        9
        ·
        21 hours ago

        Metal is heavier than water. Virtually every containber is fille to the brim with products, now I don’t know you but most everything we buy is heavier than water.

        It’s clear they have some kind of extra propulsion in those, most likely magnetic anti gravitation.

  • NigelFrobisher@aussie.zone
    link
    fedilink
    arrow-up
    46
    arrow-down
    1
    ·
    21 hours ago

    The funniest thing is that the aerospace engineers who made this possible are just as much hopeless dysfunctional wrecks as the rest of us.

  • Thorry84@feddit.nl
    link
    fedilink
    arrow-up
    35
    ·
    22 hours ago

    Well I must admit, when the plane is resting on the ground, the wings droop down a lot. Then when airborne it’s the other way around, the wings curve upwards as the fuselage hangs from them. In my mind nothing that big made of metal should be able to flex that much.

    But since I’m not a conspiracy theorist, I have learned about material science, airplane design and engineering. And I have found out that it does indeed flex that much. It also isn’t that thick, since it’s only a skeleton wrapped with a very thin layer of metal. In fact if it didn’t flex as much, it would be weaker and not stronger.

    So the thing I really learnt is never to trust intuition when it comes to things like this.