Tesla's "Valvular Conduit"
myminifactory
This is #1,329,559 US, "Valvular Conduit," issued 1920, with a unique twist - specifically, a 90-degree turn. The resistance only flows one way, but this isn't about replacing valves; it's a proof-of-concept that adding more axes really boosts flow resistance (and, as expected, it does!). This kind of conduit works best with fluids that have an impulse, and the greater the impulse, the higher the resistance to backflow. Keep an eye out for more physics tricks in the next few days!
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