• Alaskaball [comrade/them]
    ·
    3 years ago

    A pebble on the ground getting sucked up by the air vortex caused by the jet engine intake while it's taxing around the runway can destroy an engine, like fuck man machines are more fragile than we think they actually are.

    • GrouchyGrouse [he/him]
      ·
      3 years ago

      There's a kind of historical oddity that when weapons were primarily used in melee they were in an arms race to get stronger and more durable. Stone to bronze. Bronze to iron. Iron to steel.

      But the more capable these modern weapons are at killing the more fragile they become. Minutemen (nuclear) missiles cannot be perpetually fueled. They have to empty and refuel it in intervals because the fuel is too volatile to just hang out without trying to party.

      • Catherine_Steward [she/her]
        ·
        3 years ago

        Bronze to iron.

        Iron is actually less durable than bronze. The only reason it overtook bronze as the dominant weapon material is because it was far more abundant. A thousand dudes with iron spears are going to beat a hundred dudes with bronze spears.

        • Des [she/her, they/them]
          ·
          3 years ago

          copper and tin both also form under completely different geological conditions don't they? so they are never near each other

        • GrouchyGrouse [he/him]
          ·
          3 years ago

          I love being wrong in a way that informs me, thanks for the correction that is really interesting!

          • Catherine_Steward [she/her]
            ·
            3 years ago

            Just to be clear as well, it's not a big gap. Iron is harder than bronze, but more brittle. Bronze weapons/tools will bend with use, and then you bend them back into shape over your knee. Iron is harder to bend, but easier to break. Bronze has to be pushed pretty hard to break.

            Steel is springy and very difficult to bend out of shape, and also much harder. So it just completely outclasses both.

        • The_Jewish_Cuban [he/him]
          ·
          edit-2
          3 years ago

          Perpetual means never ending or changing, perpetually in this case is used to mean fueled forever.

          • TankieTanuki [he/him]
            ·
            3 years ago

            Permanently fueled? Perpetual makes me think of something that is constantly being fueled as it is depleted.

            • The_Jewish_Cuban [he/him]
              ·
              3 years ago

              Yeah I thought it was an odd word choice as well, but due to the additional context provided that was the only way to interpret it. To me when I hear the word it means to repeat a process or status that never changes or ends. "It's fuel must be perpetually replaced every X years". However based on the definition which may not exactly reflect it's modern usage it does make sense in that situation, even if it seems a little strange.

              • GrouchyGrouse [he/him]
                ·
                3 years ago

                Your good-faith interpretations were correct. I should have said "permanently" or perhaps even further clarifying it by saying they cannot be "ready to launch" at all times.