https://www.physicsforums.com/showpost.php?p=1876004&postcount=49 You must consider the two other curves even if they contradict the cable theory. The shapes change under the myelin I didn't took this case in example and I do not contest the fact that the signal is dampened with distance. They recorded every 0.1 mm (100 µm). A node is 1µm wide. This is source of error (and they explained it in the paper). You can give your values for the components of the circuit. We will be in agreement. ps: That is the second time the treads I started are closed without any advice and any rules violation from my own.