Bonus points if you can type it out as incomprehensibly as possible

  • RandyLahey [he/him]
    ·
    3 years ago

    also theres these boats now that are powered entirely by the wind but can actually go like twice as fast as the wind is going, you cant tell me that isnt sorcery

    • Frank [he/him, he/him]
      ·
      3 years ago

      It's hydrodynamics and it's fucking boss. I don't understand any of it, except in a very vague intuitive "That drawing makes sense" way.

      • riley
        ·
        edit-2
        1 year ago

        deleted by creator

        • Frank [he/him, he/him]
          ·
          3 years ago

          With the right sails you can sail as close as I think 20 or 30 degrees of the wind. So not quite straight in the wind, but not far off.

            • riley
              ·
              edit-2
              1 year ago

              deleted by creator

            • Frank [he/him, he/him]
              ·
              3 years ago

              Nope. the windmill on the deck is driving a turbine which is either driving a propeller directly or driving a generator that drives a propeller. The wind isn't pushing the ship, it's just spinning the wind mill, and the prop is pushing the ship.

            • sysgen [none/use name,they/them]
              ·
              3 years ago

              It's not, because you're reducing the kinetic energy of the wind, so it's fine. It's still wildly counterintuitive lmao

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

      the wind at a 90 degree angle to the boats direction of movement can still add momentum to the boat, but does not cancel out to a relative speed of zero as a wind directly behind would. the margins are slim so theres a shitload of drag mitigating features like hydrofoils that lift almost all of the boat out of the water.