Magnets?
Pages: [1], 2
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Other Help
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nectar
2010 Mar 8 • 228
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hi guys, i was searching about the magnetic induction of Faraday and i was thinking of making a permanent spining CD with magnets, like something like this:
Explanation:
what i wanted is like to make a super simple design that if i put that magnet it will start repeling the others so the CD with magnets will spin forever without stoping :D.
I love cows and monkeys including cookies :D
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(Edited 2010 Nov 24 at 14:52)
2010 Nov 24 at 14:51
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the_cloud_system
polly pushy pants
2008 Aug 1 • 2832
-6 ₧
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thats cool
I am on a journey that I hope I will never finish.
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Down Rodeo
Cap'n Moth of the Firehouse
2007 Oct 19 • 5327
57,583 ₧
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Rockbomb
Dog fucker
2009 Nov 13 • 1942
-190 ₧
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Also won't the magnet demagnetize each other if you keep them in each others presence?
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Down Rodeo
Cap'n Moth of the Firehouse
2007 Oct 19 • 5327
57,583 ₧
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phoenix_r
2009 May 13 • 625
17 ₧
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Perpetual motion?!
¡Science!
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eDan Co.
Mighty Typist
2007 Sep 24 • 2917
252 ₧
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If you put this device in a frictionless vacuum, the sum of forces applied to the disc will be 0. Look at your diagram: the magnet at 3 o'clock is doing nothing, the magnet at 1 o'clock is pushing CCW at a force of F(N), and the magnet at 5 o'clock is pulling CW at a force of F(N), etc etc etc with all magnets.
Basically the magnets do nothing. Maybe add mass to the disc, but nothing more.
May contain traces of invisible text.
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SRAW
Rocket Man
2007 Nov 6 • 2146
601 ₧
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Mythbusters have proven that perpectual motion machines can't exist.
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Down Rodeo
Cap'n Moth of the Firehouse
2007 Oct 19 • 5327
57,583 ₧
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I'm not sure that that's provable. On the other hand perpetual motion violates lots of different laws of physics.
Your machine wouldn't produce motion. It could store it rather inefficiently, but where's the point in that?
It would be instructive to look at your setup and one that is the same except with the magnets removed. The balance of forces will be the same (as Edan said, zero).
And, of course, if you used it to induct a current it would slow down. It's odd but you can view it as a kind of friction: the electrons individually can be pushed around but when there's lots it can be a surprising force. If you have a hand generator you can feel the difference by hooking up lights of different wattages.
I like how I've said the same thing over and over in this thread in marginally different ways.
Everyone stares when you walk in the room, they stare when you go....
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(Edited 2010 Dec 7 at 19:16)
2010 Dec 7 at 19:14
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eDan Co.
Mighty Typist
2007 Sep 24 • 2917
252 ₧
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SRAW said: Mythbusters have proven that perpectual motion machines can't exist.
Physicists knew that all along. Mythbusters showed it on TV, explaining it like you would to an eight-year-old.
May contain traces of invisible text.
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SRAW
Rocket Man
2007 Nov 6 • 2146
601 ₧
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I don't like how this jewish atheist thinks I didn't know that.
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aaronjer
*****'n Admin
2005 Mar 21 • 3812
1,227 ₧
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SRAW, most people here are going to assume the worst of you regardless of the context. It is an unfortunate side-effect of being disliked. Regardless... he only implied that you didn't already know that.
In general and out of this context: What's up with people thinking less of someone's abilities just because they don't like them? Almost everyone does that. It's stupid. People are stupid.
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superjer
superjer
2005 Mar 20 • 3762
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nectar: Is there any particular reason why the arrows in your diagram go counter-clockwise?
Couldn't they just as well go clockwise?
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eDan Co.
Mighty Typist
2007 Sep 24 • 2917
252 ₧
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aaronjer said: People are stupid.
With an average IQ of 100, yes, they are. 
May contain traces of invisible text.
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Mate de Vita
Kelli
2008 Oct 4 • 2414
159 ₧
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aaronjer said: In general and out of this context: What's up with people thinking less of someone's abilities just because they don't like them? Almost everyone does that. It's stupid. People are stupid.
You're judging this shit the wrong way. People don't like other people whose abilities they think less of.
...and that's the bottom line because Mate de Vita said so.
Who controls the past, controls the future. Who controls the present, controls the past.
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aaronjer
*****'n Admin
2005 Mar 21 • 3812
1,227 ₧
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That'd just be mean. There are plenty of incompetent people I don't mind.
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Kelli
2010 Jan 27 • 13
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It's true. AaronJer has played Civilization with me. On multiple occasions, at that. That's tolerance.
almost certainly not aaronjer. *possibly* sbanth.
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Mate de Vita
Kelli
2008 Oct 4 • 2414
159 ₧
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Kelli said: It's true. AaronJer has played Civilization with me. On multiple occasions, at that. That's tolerance.
Yeah, but you are aaronjer, so it doesn't count.
...and that's the bottom line because Mate de Vita said so.
Who controls the past, controls the future. Who controls the present, controls the past.
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(Edited 2010 Dec 10 at 11:43)
2010 Dec 10 at 11:43
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phoenix_r
2009 May 13 • 625
17 ₧
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Mate de Vita said: Kelli said: It's true. AaronJer has played Civilization with me. On multiple occasions, at that. That's tolerance.
Yeah, but you are aaronjer, so it doesn't count. Who isn't, these days?
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Mate de Vita
Kelli
2008 Oct 4 • 2414
159 ₧
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phoenix_r said: Mate de Vita said: Kelli said: It's true. AaronJer has played Civilization with me. On multiple occasions, at that. That's tolerance.
Yeah, but you are aaronjer, so it doesn't count. Who isn't, these days? I think aaronjer is defined as anyone other than himself.
So anyone who isn't aaronjer is in fact aaronjer.
...and that's the bottom line because Mate de Vita said so.
Who controls the past, controls the future. Who controls the present, controls the past.
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phoenix_r
2009 May 13 • 625
17 ₧
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Mate de Vita said: I think aaronjer is defined as anyone other than himself.
So anyone who isn't aaronjer is in fact aaronjer.
Isn't this a paradox?
1. !ato->ato
2. ato->!ato
3. goto 1
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aaronjer
*****'n Admin
2005 Mar 21 • 3812
1,227 ₧
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No, it's not a paradox, it's just wrong. We've been over this! 
But seriously. Trying to get Kelli to attack an enemy city with more than one unit at a time? Impossible. At least it's impossible without a complex system of puppetry to control every movement from afar.
And you'd better show up at Outback tonight! With your car that you may or may not be old enough to drive. I can't remember how old you are.
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(Edited 2010 Dec 10 at 18:45)
2010 Dec 10 at 18:41
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NatureJay
SJA: Commander of Ruthless Abuse
2005 Mar 22 • 1443
574 ₧
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How the fuck did this post last two weeks without an ICP reference?
100% natural, no antibiotics, and bloodgrass-fed
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Rockbomb
Dog fucker
2009 Nov 13 • 1942
-190 ₧
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NatureJay said: How the fuck did this post last two weeks without an ICP reference?
I was wondering the same thing, I've been waiting for it.
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the_cloud_system
polly pushy pants
2008 Aug 1 • 2832
-6 ₧
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I am on a journey that I hope I will never finish.
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