I have tried reading about them and I have understood how L1,2&3 are made. That was pretty easy to get. But L4 and L5 I am not able to. If anyone could give me a source to read or explain it to me. Thanks.
In: 4
They are not formed, they are a result of the geometry/math. If you wiggle those workout ropes, or a slinky on the floor, you will notice for some frequencies of input there are places where the rope/slinky just rotates in place. That is an emergent system mode, not a special formation of rope.
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