THE REASON WHY IT IS IMPOSSIBLE TO OBTAIN FREE ENERGY BY MAGNET MOTORS

[defect530]

finally i found a video against free energy. so many crackpots out there.

[fatsomamacheese]

Permanent magnets will never give us the solution to the easter bunny. The easter bunny does not exist, is not real, is illusionary. Permanent magnets will not make the easter bunny real...

Get the point?

[captainpecan]

If a magnet motor is in fact not possible, this is not a valid reason as to why. I'm not saying a magnet cannot become degaussed, because it's proven that they can, especially with high heat, or impact. A magnet is not a battery. Energy put into a magnet simply aligns the domains, and causes an unbalanced state in nature. Nature continues to try and create balance again, which is where the energy used in applications comes from. When nature balances it, the magnet looses it's strength.

[noimw]

That is because car alternators do not contain magnets, unless they have been modified.

[redriver11]

Who ever thinks it is possible to get free energy please do some research.

oh yea before you post a comment to this check out Carnot

and if you still don't believe then i would love to start a discussion

imagine where a car would start with just the energy absorbed from the air surrounding it.

try to turn on the car when there is no gas? why doesn't it work? well maybe cause there is no energy, from chemical to be converted into mechanical energy.

[pinchiazguero]

what about the car that runs on water or air, does that lose its power too!!!

[knowledgemonger]

There is no car that runs on water. The car that runs on air uses compressed air.

Compressed air has the advantage over batteries that it can do many full cycles. The disadvantages are a lower amount of stored energy per unit volume and a lower efficiency. It is worth spending a little effort on developing because if the source of energy was solar or wind, it would be a good way to go. If you burn natural gas to make the compressed air it is a net loser.

[Desertphile]

There is no such thing as "magnetic energy."

[knowledgemonger]

Actually, there is energy in any magnetic field. Think of an electro magnet. Some electrical energy gets stored in the field. When you disconnect the leads, the energy is converted back into electrical form and causes the spark.

The only way to get energy from a magnetic field involves making the field go away. It is a one time thing and not a source of power. We can use magnetic fields to store energy for a short time.

[Desertphile]

"Actually, there is energy in any magnetic field."

Energy must be added, always, without exception. The electromagnetic force is static: it contains no energy, and it therefore cannot perform work.

[knowledgemonger]

The magnetic field does contain energy and yes it can perform work. It can do it exactly once.  Take a magnet and and iron object. Bring the iron object near the magnet. The magnet will perform work by pulling the iron object to the magnet.

If you want to repeat the act, you need to do work to pull the object away from the magnet.

[FearRonPaulCultists]

:: The magnetic field does contain energy and yes it can perform work. ::

No, and No.

[knowledgemonger]

Yes and yes. You need to go study a bit of physics if you don't see that.

[crippled82]

You mean magnetic potential energy?

[knowledgemonger]

Yes, you have a potential energy when there is a magnetic field out in space. If you bring in a material with a "mu" greater than that of free space, there will be work done.

Just after the big bang, there were lots of electrons running around loose. Now we have more complex situations at lower energy levels because the electrostatic and magnetic potential energies have been converted to other forms.

[FearRonPaulCultists]

Potential energy, yes: but one must add it to the magnetic field. Magnetic fields do not contain energy: they are made out of a static force.

I suggest you read some basic physics texts on the subject.

[knowledgemonger]

I have read both basic and advanced texts on the subject. You are wrong.

Take the case of an inductor. When there is current flowing in it, the is: E = 0.5 * I^2 * L

energy stored in the inductor. Where do you think the energy is stored? Hint: Magnetic fields contain energy.

[MakesMeAngry]

# You mean magnetic potential energy? #

Yes; that is the only form of energy magnetic fields have.

[knowledgemonger]

"potential energy" is energy. As I said a magnetic field does contain energy and as I said you can get it to do work exactly once.

[MakesMeAngry]

# The magnetic field does contain energy and yes it can perform work. #

No.

[knowledgemonger]

Yes as I correctly stated, a magnetic field does contain energy and yes, it can perform work. The point you seem to be missing is the "perform work once" part of my earlier statement.

[menotfree]

No, magnetic fields do not contain energy. Please consult a physicist on the subject. Desertphile made several videos explaining this to morons like you. You may also read Isaac Asimov's essays on the subject via the 'net.

[knowledgemonger]

Desertphile is wrong on this as any physicist you consult would tell you as would anyone with much knowledge of electronics.

An inductor carrying a current has energy in it equal to: E = 0.5 * I^2 * L

This energy is stored in the form of a magnetic field. The fact that an inductor stores energy proves that magnetic fields do contain energy. In fact you can't have a magnetic field without energy.

[Desertphile]

It is impossible to "extract" from permanent magnets "energy."

[gristolu]

a)when you convert the work of the magnetic field into an other energy, for example two magnets repulsing each other on a table crawl on it and generate heat because of friction,

[Desertphile]

"when you convert the work of the magnetic field into an other energy...."

Yes, "convert the work." Work being the operative word: to perform work, energy must be added--- only afterwards can a magnetic field perform work. There is no energy is magnetic fields that can be used to perform work: it must always be added.

[gristolu]

b)the enrgy needed to make the magnets move and generate heat by crawling on the table was the energy stored in the permanent magnets, it did not came out from nothing. thanks for the comments i'll like to reply on the magnetic energy one and the discharge thing one but i need someone to write in english for me

[Desertphile]

Magnets do not "discharge."

[knowledgemonger]

Take a small iron bar and magnetize it very strongly. Place it near a coil and suddenly apply a welding torch to the iron. With sensitive equipment, you can see a voltage on the coil as the magnet is destroyed.

The tiny amount of energy that was stored in the bar as a magnetic field partly shows up in the coil. The rest goes to making a little extra heat in the bar.

In all of this, you have moved energy from A to B to C but most certainly never created any.

[Desertphile]

"The tiny amount of energy that was stored in the bar as a magnetic field partly shows up in the coil."

That's nice.

Magnets do not "discharge."

[knowledgemonger]

Over time most magnets do get weaker. So by most peoples definition of the term, yes they do discharge. It is slow and not useful but it is a real effect.

[FearRonPaulCultists]

No, magnets do not get weaker over time unless they are heated.

[knowledgemonger]

Yes magnets do get weaker over time. I have made measurements that have proven it. To be more exact, I made the latter set of measurements.

If you go down to your local feed store you can buy a thing called a "cow magnet". Back around 1969 some bought some and measured their magnetic moment as being almost exactly 1nT at 100 feet. We are just about 40 years later and when I measure those same magnets now, they are far less than that. They have not been heated. The effect is well known.

[MakesMeAngry]

he or she is correct; magnets do not discharge. they get weaker due to heat; they do not contain energy, of course, that can be lost.

[knowledgemonger]

I have made the measurements and performed the test that disproves this claim.

As I said

"If you go down to your local feed store you can buy a thing called a "cow magnet". Back around 1969 some bought some and measured their magnetic moment as being almost exactly 1nT at 100 feet. We are just about 40 years later and when I measure those same magnets now, they are far less than that. They have not been heated. The effect is well known."

This is real measurements vs your claim.

[menotfree]

''I have made the measurements and performed the test that disproves this claim.''

So the world's physicists are wrong about the subject and you are right. Golly. Why don't you write a paper on the subject and get it published in a physics journal?

[knowledgemonger]

No, the worlds physicists know about the effect. It is you who are wrong twice on this subject. First by claiming that magnets do not degrade with time and second by claiming that physicists aren't well aware of this fact.

[menotfree]

''They have not been heated. The effect is well known.''

Unless you have a freezer that goes to absolute zero, they *HAVE* been heated.

Whatshername is 100% correct: magnets do not "lose energy" because they do not contain energy, and they do not "discharge." Loss of strength is due only to heat. See Asimov's essays on the subject, or consult a high school physics book.

[knowledgemonger]

So now you are changing your story and are trying weasle your way out. You have realized that magnets do slowly lose strength.

You are still wrong about magnets not containing energy. The reason that magnets lose strength is because they are going to a lower energy state. It is basic physics. A magnet contains more energy than the same material does when it is not a magnet. Like all systems they tend towards more disorder and lower energy.

[Giwohfi]

Retards like 'knowledgemonger' freak me out. Every physics on the planet says he's wrong, but that does not bother him any.

You are correct: magnets do not 'discharge'.

[knowledgemonger]

Name one single physicist who does not know that magnets do tend to degrade with time.

Like I pointed before out, I have made actual measurements with a real magnetometer on a real magnet that proved that over about 40 years it lost some of its strength.

Magnets do contain more energy than the same material would if it was not a magnet. It is normal in all physical systems for the system to tend towards a lower energy state. This is one of the basic rules in physics.