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Finsrud Perpetual Motion Machine Revealed?

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Uploaded on Aug 28, 2009

This is a working model of how I believe the Finsrud perpetual motion machine actually works. I was quite fascinated by Reidar Finsrud's Perpetuum Mobile, but much more fascinated by people's reactions to it. I suspect that the latter was one of the real motivations for its creation, especially given his reputation as a very clever and versatile artist. He clearly has a playful sense of humor. Finsrud actually says very little about the Perpetuum Mobile. I haven't found a specific quote where he actually claims it is a perpetual motion machine. He sort of talks around it and drops hints, but let's other people make the enthusiastic claims and speculations.

Obvious I could not resist participating! I recognized that the three cylindical magnets are electromagnets--which don't work as magnets unless they have electrical power supplied to them. How could I tell? One of the pictures shows the underside of one of these magnets. These electromagnets have a metal bar in the center, a coil wound around the core and protected by a seal of epoxy, and then an outer metal shell around the coil and the core. So the bottom will show a disk in the middle which is the end of the core, with a ring of epoxy of a different shade around that, and then an outer ring that is the edge of the shell. This is exactly what you see in the picture. In the video they clearly bob when the steel ball rolls past, so each one is powered on when the ball passes by. This led me to focus on the parts of the machine that could be used to turn the magnets on at the right time to give the ball a little boost as it approaches each magnet. That led to my demonstration.

However, this is not PROOF that Finsrud actually did it this way. I've only presented a PLAUSIBLE explanation and demonstrated it with a working model. Clearly there are usually a number of ways you can get the same effect, so you can't be sure you know how it was done unless the perpetrator actually shows you how it was done.

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