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PugJesus@piefed.social to Science Memes@mander.xyzEnglish · 1 day ago

Every little bit counts

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Every little bit counts

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PugJesus@piefed.social to Science Memes@mander.xyzEnglish · 1 day ago
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  • TankovayaDiviziya@lemmy.world
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    1 day ago

    I’m too dumb for maths because I have dyscalculia, but i am always amazed by the engineering crowd on how they could improve efficiency by finding and tweaking just the little things.

    • tetris11@feddit.uk
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      • Artemis tanks were 10m wide and 30m tall.
      • Cylinder surface Area = (2.pi.r2) * (2.pi.r.h) [1]
        • 2 * pi * 5 * 30 ~ 1100m2 to paint
      • Paint paints about 10m2 per Litre paint
      • Need 1100 / 10 = 110 Litres of paint
      • 1L of paint weighs about 2kg
      • 110 Litres of paint weighs about 220kg

      1. curved area plus top and bottom circles ↩︎

    • icelimit@lemmy.ml
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      8 hours ago

      Til dyscalculia. I hope you weren’t born in asia

      • TankovayaDiviziya@lemmy.world
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        8 hours ago

        I am Asian 😂 I refuse to live up to the stereotype!

        • chiliedogg@lemmy.world
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          7 hours ago

          Or expectations!

          Or are you a doctor?

          • TankovayaDiviziya@lemmy.world
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            7 hours ago

            I won’t go too specific but my background is in biotech.

        • icelimit@lemmy.ml
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          7 hours ago

          So… you’re going to be a lawyer then?

          • TankovayaDiviziya@lemmy.world
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            7 hours ago

            I already work on STEM, without the E, but a little bit of M.

            • icelimit@lemmy.ml
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              6 hours ago

              How are you doing m without being m?

              • TankovayaDiviziya@lemmy.world
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                6 hours ago

                It’s regulatory requirement to use calculators in my field to make calculations, so that has been saving me.

    • neuromorph@lemmy.world
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      23 hours ago

      Its simple rocket math. Every lb of weight must consume fuel.

      Si.pky. 1 lb of weight needs 1 lb of fuel to escape orbit. But the fuel has weight also. So the effective fuel you need to lift the rocket and payload is exponential.

      The harder stuff is orbital mechanics. Getting things into orbit is easy. Having thwm go where you want is the hard part.

      • Town@lemmy.zip
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        22 hours ago

        The tyranny of the rocket equation. Generally, 1% of weight is payload, 85% is fuel.

        https://www.scientificamerican.com/blog/observations/escaping-the-tyranny-of-the-rocket-equation/

        • Lucky_777@lemmy.world
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          8 hours ago

          The sooner humans can move past rocket tech the better to be honest.

          • NewSocialWhoDis@lemmy.zip
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            7 hours ago

            Stop living in a gravity well and we wouldn’t have to expend energy to get out of it!!

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