Magnetic Pendulum

A short pendulum with a magnetic bob is oscillating over a number of magnetic set up so that they all repel the bob. This makes for an interesting meandering motion.

Category:

Howto & Style

Tags:

• meccano
• erector
• pendulum
• oscillate
• magnet
• magnetic

[AdminOnDuty]

Intuitively I would say your pendulum nees a bit more mass to counter the magnetic force. The force should be just above the momentum at the farthest swing.

[paulidale]

The pendulum is providing some of the magnetic force. The weight is a magnet. The whole point is to watch it wobble around semi-chaotically and I think increasing the mass would detract from this.

[bLue27penguin]

can you tell me how to make this?...please, i just need it for the write-up of my project...please...

[paulidale]

There are no plans, however you should be able to make out the necessary details from the video. The placement of the magnets is really just a matter of trial and error until you end up with something interesting.

Also, don't use super-magnets, they stop the motion too quickly.

[nicbordeaux]

Chaotic movement can be produced in many mechanical (or mag) systems. You might get longer runtime by having the base magnets free to travel around in tracks, on a non-ferous base. FWIW :)

[absurdusdelirium]

Cool vid and what makes it extra cool is that you can hear budgies inthe background! x)

[8RR8R8]

search youtube for Finsrud --he made selfsustained closed system using magnets that runs and runs without external source (shh, it is the centrofugal force that is messing wiht the second dogma of thermodynamics)

[lordofgeeks]

Nice idea, I needed it for a demonstration.

Thank you !

[conoba]

Simple setup, chaotic result.

I only seen this experiment with three equidistant magnets so far.