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Author Topic: pendulm  (Read 4128 times)

Offline etechjoe

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pendulm
« on: February 15, 2006, 06:15:28 AM »
anyone ever try making a magnetic pendulum with say a mag on each peek to compensate the loss in swing ? looks simple and good on paper  or maybe i need a vacume chamber ...

Offline Omnibus

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Re: pendulm
« Reply #1 on: February 15, 2006, 06:23:29 AM »
Don't get it. Explain ...

Offline FreeEnergy

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Re: pendulm
« Reply #2 on: February 15, 2006, 08:36:42 AM »
draw a picture

Offline gyulasun

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Re: pendulum
« Reply #3 on: February 16, 2006, 12:00:59 AM »
anyone ever try making a magnetic pendulum with say a mag on each peek to compensate the loss in swing ? looks simple and good on paper? or maybe i need a vacume chamber ...

Hi,

Norman has built an interesting pendulum setup.

See his work at http://student.ccbcmd.edu/~norman/magwork.html

rgds
Gyula

Offline Elvis Oswald

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Re: pendulm
« Reply #4 on: February 16, 2006, 02:37:03 AM »
I watched the videos.  Looks like you would expect it to act... energy stored in the spring overcomes the attraction of the opposite pole of the stationary magnet and the repulsive force of the similiar pole.... and then it hesitates coming back because of the repulsive force... looks like it might stop there, except the spring must catch up and then it pushes past to come to rest at the opposite pole on the stationary magnet.

The last video shows magnets lying in the path with poles aligned to give more push to the pendulum.

Fun to play with... but practical application say's he'll need more energy in (electromagnets) than he'll get out with motion of the pendulum.  If he perfects this... he'll have a DC motor.  :D