• ab60753@lemmy.zip
    60·
    9 days ago

    Edit: accedentally used the wrong density. Should be the desity of the surounsing medium (air) at 1.23 kg/m3- density of helium making it slightly more fesable. I.e. i was wrong on almost an order of magnitude, but its still infeasable… thanks @exasperation, @noneofyourbuissness

    So… hear me out. Yes i know its just a comic… im just autistic. Soooo…

    Assuming the guy is average weight (70 kg) the total force of gravity on him is Fg=70×g N. The force of boyancy would be Fboyancy=dhelium×Vdisplacemwnt×g N.

    If thease are in equilibrium (the guy floats): Fboyancy=Fg

    dhelium×Vdisplacemwnt×g =70×g

    If dhelium is 0.178 kg/m3 then 70/0.178 = Vdisplacemwnt= 393.5 m3≈ 1.9 m3 per condom.

    Like i know condoms are super strechy (can hold about 40L air befor burating) but wow. Thats like a phone booth per condom.

    Did you need this info?.. no. Was i compelled to calculate this? … no … stay in school kids.

    • DagwoodIII@piefed.socialEnglish
      34·
      13 days ago

      Classic rookie mistake.

      Not every store has an unlimited supply of condoms, especially the extra large ones*.

      He brought 200 at her store, and emptied the shelves. He probably hit a dozen places and brought all they had on hand.

      *I shall modestly refrain from enumerating the many, many times I myself have needed to purchase a vast number of extra large condoms…

      • wolframhydroxide@sh.itjust.works
        6·
        12 days ago

        The other person who replied to you is deeply wrong. See my reply to them here for complete calculations. You can’t simply ignore the mass of the gas with which you’re replacing the air, despite their suggestion. If the mass of what’s inside the balloon doesn’t matter, you might as well fill it with lead. Hydrogen is something like 7% More efficient than helium for balloons. You have a good idea, and hydrogen balloons don’t just explode for no reason. They’re dangerous, but saying that they’re necessarily going to flameout is ridiculous

  • DagwoodIII@piefed.socialEnglish
    21·
    12 days ago

    Reminds me of a classic joke.

    College boy is buying supplies for a big party. The old woman cashier starts throwing him meaner and meaner looks as she rings up all the beer and liquor.

    “Will there be anything else…SIR?”

    “Why, yes. I will need fifty boxes of your finest condoms, MISS.”

    “Don’t you ‘miss’ me!”

    “In that case, make it sixty boxes.”

      • WhiteOakBayou@lemmy.world
        24·
        12 days ago

        She said “Don’t you ‘miss’ me.”

        Her intended meaning was "Don’t refer to me as “miss.”
        He understood it as “Don’t forget to have sex with me too.”
        As the audience, we are alerted to this humorous misunderstanding by his action of buying more condoms. He increased his order as to not “miss” doing sex on her as well.

        • tetris11@feddit.ukEnglish
          8·
          12 days ago

          Oh, I think I would have got that more if he said “fifty-one boxes”.

          I didnt realise he used 10 boxes per girl

  • DEJED@feddit.org
    7·
    12 days ago

    I mean… he was all out of condoms. It was the correct call to turn her down