-=> Mike Ross said to Greg Mayman
 -=> about "{at}%^{at}#$%^ VEROBOARD" on 03-21-04  21:20.....

 MR> Not really the same type of spinning motor we commonly think of. What
 MR> I meant was more fundamentally a device which converts electric energy
 MR> into a mechanical force. For example, the moving parts in a relay form
 MR> a linear motor, just like the solenoid in a pinball machine flipper.

Yeah, sure, I'll accept that.

But the spring that does the release, a motor? No way!

 MR> But the question was if this was a positive feedback? An analogy of
 MR> this action might be for example an electric arc where a certain
 MR> threshold voltage must be attained before the gas ionizes. Then once
 MR> it conducts the voltage required to maintain the arc is quite low.
 MR> There is no positive feedback to be found in this either. The idea of
 MR> a positive feedback requires energy be added to the system. In my
 MR> opinion we don't find it in the relay action. Where is energy added?

Exactly.
 
 MR> Your explanation is excellent. The same applies to the magnetizing
 MR> threshold in a audio tape oxide particle but there is no positive
 MR> feedback in that either.

Hmmm... agreed about the lack of positive feedback, but they are
rather different effects.

   ,-./\
  /     \ From Greg Mayman, in beautiful Adelaide, South Australia
  \_,-*_/    "Queen City of The South"    34:55 S  138:36 E
       v

... You are confused; but this is your normal state. Confusing, eh?
___ Blue Wave/386 v2.30

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