The discussion centers on the theoretical concept of a magnet-powered Newton's cradle operating in a perfect vacuum, inspired by the CGI representation from X-Men. Participants conclude that, despite the ideal conditions, the system would not run indefinitely due to energy losses from induced magnetic fields and inelastic collisions between the balls. Specifically, Lenz's Law explains how the motion of metallic objects in a magnetic field generates opposing forces, ultimately leading to energy dissipation. Thus, perpetual motion is unattainable in this scenario.
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rc1102 said:If we imagine a newtowns cradle now change it to be like the one from xmen without the strings, I know this was cgi but let's imagine it was placed in a perfect vacuum and was operated with permanent magnets that won't degrade.
Would this reamain running forever after the inital energy input