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#1
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Simplest electric motor
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#2
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Simplest electric motor
Ignoramus5215 wrote:
http://www.metacafe.com/watch/971400...lectric_motor/  That was worth watching.Wes |
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#3
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Simplest electric motor
On Thu, 13 Dec 2007 21:56:59 -0500, Wes wrote:
Ignoramus5215 wrote: http://www.metacafe.com/watch/971400...lectric_motor/ That was worth watching.I wonder if they're anywhere near a large magnetic field. Back in the 1990s at least, we had a blower fan in GE's MRI scanners that was a normal DC motor with fixed field - but the field was the scanner's magnet itself. Strangest motor you ever saw, just a rotor, no stator. Only worked when the system was ramped up. Not sure if it was a prototype or went into production that way but damned clever, and a great puzzler for people who know just enough about how motors work. Dave Hinz |
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#4
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Simplest electric motor
On Thu, 13 Dec 2007 21:56:59 -0500, with neither quill nor qualm, Wes
quickly quoth: Ignoramus5215 wrote: http://www.metacafe.com/watch/971400...lectric_motor/ That was worth watching.I was in tears when it finished. Good laugh! -- I guess they don't make import crap like they used to. --Ernie L., Usenet's Wreck.Metal group |
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#5
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Simplest electric motor
Dave Hinz wrote:
On Thu, 13 Dec 2007 21:56:59 -0500, Wes wrote: Ignoramus5215 wrote: http://www.metacafe.com/watch/971400...lectric_motor/ That was worth watching.I wonder if they're anywhere near a large magnetic field. Back in the 1990s at least, we had a blower fan in GE's MRI scanners that was a normal DC motor with fixed field - but the field was the scanner's magnet itself. Strangest motor you ever saw, just a rotor, no stator. Only worked when the system was ramped up. Not sure if it was a prototype or went into production that way but damned clever, and a great puzzler for people who know just enough about how motors work. No need for one. It's a classic homopolar motor in a very clever implementation. |
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#6
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Simplest electric motor
Ignoramus5215 wrote:
http://www.metacafe.com/watch/971400...lectric_motor/ I have recently seen the same thing with a slight variation here http://www.supermagnete.de/eng/project1 . Must try it before I see my nephew at Christmas and make sure I have the goods along. |
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