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Author Topic: Magnetic energy?  (Read 4565 times)

Offline JBWD

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Magnetic energy?
« on: 10/11/2011 03:47:49 »
Simple Question: How much energy is in a Magnet and can it be harness for our use?

During the last three months my colleagues and I have been looking into the intermolecular forces at work within a magnet that allows it to have properties unlike anything else in nature.

Our research has allowed us to see that (Highly efficient)motion is obtainable in a vaccumn quite easily, but are still having trouble bringing a way essentially harness this power.

This month we are planning on placing makeshift alternator that has been modified to be frictionless from magnets and are going to see if electric current can be obtained in a vaccumn. If this is possible this would essentially be free energy for as long as the magnets have charge.

Edit: Perpetual was miss-used in the context of being in a vaccumn.
« Last Edit: 11/11/2011 06:48:36 by JBWD »


 

Offline Bored chemist

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Re: Magnetic energy?
« Reply #1 on: 10/11/2011 06:56:38 »
"Our research has allowed us to see that propetual motion is obtainable in a vaccumn quite easily"
Thenn you need to do it again, but properly this time.
 

Offline Supercryptid

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Re: Magnetic energy?
« Reply #2 on: 11/11/2011 02:38:03 »
Actually, perpetual motion in a vacuum might not be impossible, so long as the energy remains in the system and is not extracted to do external work. That's the catch, of course.

I do have to wonder if a spinning object in a vacuum, even if there is no drag, would still eventually run down and stop (or asymptotically approach zero spin) due to emission of gravitational waves?
 

Offline syhprum

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Re: Magnetic energy?
« Reply #3 on: 11/11/2011 04:10:32 »
Would a rotating spherical homogeneous body produce any gravitational waves ?

The gyroscopes in the Gravity probe B space craft came very close to this ideal
« Last Edit: 11/11/2011 04:21:28 by syhprum »
 

Offline Geezer

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Re: Magnetic energy?
« Reply #4 on: 11/11/2011 05:35:22 »
Actually, perpetual motion in a vacuum might not be impossible, so long as the energy remains in the system and is not extracted to do external work.

It can still slow down, even if all the energy remains in the system. All it takes is the conversion of a small amount of kinetic energy into heat. It's not necessary to do any external work. 
 

Offline JBWD

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Re: Magnetic energy?
« Reply #5 on: 11/11/2011 06:44:44 »
Essentially, the gravitaional waves/pull are/is still acting on the system but is greatly reduced due to the magnetic repulsion. I should not have said exactly perpetual, but during the observations and to the rotation has only reduced by about 6 RMPs over the 3 months.

 

Offline Geezer

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Magnetic energy?
« Reply #6 on: 11/11/2011 07:10:00 »
Essentially, the gravitaional waves/pull are/is still acting on the system but is greatly reduced due to the magnetic repulsion.

Why would there be any connection between gravitational waves and magnetic repulsion? It would be very interesting if you have established some relationship.

Reading between the lines, it sounds as if you might be rotating an object in a vacuum supported by magnetic bearings. Is that about right?
 

Offline syhprum

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Magnetic energy?
« Reply #7 on: 11/11/2011 08:11:39 »
The gyroscopes of the Gravity B experiment had a half life for their rotational speed ( initialy 4200 RPM ) of 15,000 years JBWB et al will be hard pushed to improve on that !
« Last Edit: 11/11/2011 08:13:18 by syhprum »
 

Offline Bored chemist

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Magnetic energy?
« Reply #8 on: 12/11/2011 00:29:44 »
"Would a rotating spherical homogeneous body produce any gravitational waves ? "
Who cares?
The "research" the OP did was on things made of lumps called atoms, so it wasn't homogeneous.
 

Offline wolfekeeper

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Magnetic energy?
« Reply #9 on: 13/11/2011 03:13:04 »
Simple Question: How much energy is in a Magnet
According to:

http://en.wikipedia.org/wiki/Neodymium_magnet#Magnetic_properties

the energy density of a neodymium magnet is 440 kJ/m^3

For comparison, a cubic metre of kerosene is about 34 GJ/m^3.

As with kerosene, once you remove the energy from it, it is of no major use.

Quote
and can it be harness for our use?

Oh sure, neodymium magnets are routinely used in powerful electric motors; just not as a primary source of energy.
 

Offline yor_on

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Magnetic energy?
« Reply #10 on: 18/11/2011 17:20:23 »
This sounds like someone wanting to sell me something?
Get your energy here, sort of :)
 

Offline terrildactl

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Magnetic energy?
« Reply #11 on: 30/11/2011 15:18:01 »
We already have perpetual motion,the atomic clock, how much closer do we need to get. What is to be gained by making more ,friction is a constant, the electron is perpetual motion. Lets talk plasma rockets.
 

Offline wolfekeeper

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Magnetic energy?
« Reply #12 on: 30/11/2011 16:52:41 »
Atomic clocks aren't perpetual motion, they're sort of like complicated tuning forks.
 

Offline CliffordK

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Magnetic energy?
« Reply #13 on: 01/12/2011 21:54:20 »
One thing to keep in mind.

If this magnet motor only works in a perfect vacuum with super low friction bearings.  Then, scaling it up for practical power generation will be difficult. 

For example, it takes energy to turn your alternator, which would likely exceed that of your low friction bearings, and stop the movement of the motor.
 

Offline Geezer

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Magnetic energy?
« Reply #14 on: 01/12/2011 22:15:38 »
Some companies (one example below) are already using something not unlike this for practical purposes.

http://www.beaconpower.com/products/about-flywheels.asp
 

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Magnetic energy?
« Reply #14 on: 01/12/2011 22:15:38 »

 

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