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Stamets@lemmy.dbzer0.com to Science Memes@mander.xyzEnglish · 2 天前

Inspirational

lemmy.dbzer0.com

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Inspirational

lemmy.dbzer0.com

Stamets@lemmy.dbzer0.com to Science Memes@mander.xyzEnglish · 2 天前
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  • tyler@programming.dev
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    1 天前

    Did nobody else notice that they’re pointing the bow lower than 45° but the line is drawn slightly upwards up compensate?

    • OddMinus1@sh.itjust.works
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      15 小时前

      Also, the arrow has some serious gliding effect on its way down.

    • jol@discuss.tchncs.de
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      1 天前

      If you keep falling short, cheat. Or if you keep falling short, your rich parents will prop you up.

      So inspiring.

  • supersquirrel@sopuli.xyz
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    2 天前

    Also if you need your arrows to land all at the same time so you can fool the enemy into thinking you are many archers fire like this.

    • NeatNit@discuss.tchncs.de
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      2 天前

      bottom projectile traveling at mach 5

      • Tja@programming.dev
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        1 天前

        Bottom projectile is traveling at a normal speed, just fired last.

        • KoboldCoterie@pawb.social
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          1 天前

          Then the distance must be almost zero, as it exhibits no drop over that range.

          • Cawifre@lemmy.world
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            1 天前

            That might have something to do with this being a chart for powered missiles.

            • FishFace@piefed.social
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              19 小时前

              The diagram is about normal unpowered shells. They use different amounts of propellant to achieve different projectile speeds

            • KoboldCoterie@pawb.social
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              1 天前

              However, the comment was talking about arrows…

              • HowAbt2day@futurology.today
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                1 天前

                I’m over here with some popcorn as nerds debate the project motion of a hypersonic missile named “arrow” and shit.

              • ulterno@programming.dev
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                1 天前

                Go with a fantasy arrow made of light, for the last one.

          • Tja@programming.dev
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            1 天前

            I see a significant drop…

            • KoboldCoterie@pawb.social
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              1 天前

              Are we looking at the same image? DO I NEED TO GET A RULER?

        • FishFace@piefed.social
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          19 小时前

          That is not how this concept, time on target, works

          • Tja@programming.dev
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            16 小时前

            It works by firing at mach 5?

            • FishFace@piefed.social
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              8 小时前

              It’s easier to just refer to “multiple round simultaneous impact” than to try to explain succinctly, especially since I already got the term kinda wrong (time on target is more of an umbrella category/earlier version)

    • niktemadur@lemmy.world
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      1 天前

      I wanna see a reverse brachistochrone!

  • zxqwas@lemmy.world
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    2 天前

    In a frictionless vaccuum 45° would be max range.

    • SatansMaggotyCumFart@piefed.world
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      1 天前

      Yeah you actually want a bit less then that.

      • Ooops@feddit.org
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        1 天前

        Unless you use modern artillery. Then you want to aim even higher because at those ranges/heights it’s beneficial to reach less dense air layers quickly.

  • SpaceCowboy@lemmy.ca
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    1 天前

    The optimal launch angle would only be 45 in a vacuum. It’ll be lower if you’re on Earth where there’s air resistance.

    • ulterno@programming.dev
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      1 天前

      Yeah, that’s why try multiple times and aim higher every time until 45°
      Once you reach that, if you are still falling short, you know you have no chance, unless you increase the launch speed.

      Of course, you can try to properly calculate drag for each projectile and set that as the maximum, but it’s fine for a one-off, assuming you have enough arrows to try again.

  • innermeerkat@piefed.social
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    1 天前

    Instructions unclear and took an arrow in the knee

  • NigelFrobisher@aussie.zone
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    1 天前

    That’s only about 30 degrees.

  • niktemadur@lemmy.world
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    1 天前

    And if you still can’t reach it, ask your god or gods for help,
    as it’s beyond the reach of Mr Newton or even Herr Leibniz.

  • snoons@lemmy.ca
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    2 天前

    CAN WE GET MUCH HIGHER?!?

    • IninewCrow@lemmy.ca
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      2 天前

      Unless you can achieve a certain amount of force … then you can get a stable orbit around the planet

      • CannonFodder@lemmy.world
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        1 天前

        Not unless you have something to alter the trajectory in flight.

        • snoons@lemmy.ca
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          1 天前

          EEXXPLOSSIIOONSS??!

    • RedBauble@sh.itjust.works
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      1 天前

      CAN WE GET MUCH LIGHTER

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