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mount a starter and alternator on plywood with a belt attached to each,...would that be perpetual motion ?


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Alternators don't put out more than 90 to 130 watts (average) and even then that number is skewed because the alternator will output at 14.4 volts (optimal) meaning the watts are actually lower than that reported at 12.

The starter is like 90% of the reason for the battery. The starter uses a huge amount of amperage to TURN AN ENGINE. If you don't know how hard this is then next time your serpentine/fan belt is off just TRY to turn that thing by hand. The starter is also why you use wet cell batteries. A dry cell that produces that many amps would be really big and have a lot of internal resistance.

no, the starter uses a higher amount of voltage to turn than the alternator puts out.

plywood or any other special metal the setup is mounted to has nothing to do with it...
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.Unless of course you had the special crystals put in place.
Kiteman7 years ago
It can be done.  Send me your credit card details, and I will PM you details on building the special overunity coupling that will make the whole thing work like a dream.

I built one from highly magnetised aluminium and it has cut my home electricity bills by over 90%.


seandogue7 years ago
no.


Re-design7 years ago
This would only work if you use a yet uninvented metal.  Plywood absorbs too much energy.  And it has to happen after that guy yesterday who wanted to reverse time figures it all out.  THEN it might be possible.
No, nothing's 100% efficient, so it'll stop, as energy leaves the system, there's friction and other losses like the resistance in the wires, also the way an alternator works means that it wouldn't work at all.
plumber_bob7 years ago
It sure sounds good on paper, don't it?

Lemonie, has it right, it won't work like you would hope.

But man if you could overcome those barriers, you'd be a hero!
 Here's an easier experiment.  Hang a weight from a string attached to the ceiling or something.  Pull the weight back and let it go.  Gravity will force the weight down.  At the bottom of the swing it will be going fastest, so it will be able to push UP against gravity and rise.  When it gets to the top of the swing, it stops, and gravity pushes it down again, and it swings back, stops and goes down again, etc.  Perpetual motion? 
lemonie7 years ago
No, but go ahead and try it if you're interested in finding out by experimentation.

L
aeray7 years ago
Yes. It really IS that easy.
kelseymh7 years ago
No.