The nature of electric magnetic radiation,it's rest mass and potential to sl

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carl fischbach

Main Question or Discussion Point

[SOLVED] the nature of electric magnetic radiation,it's rest mass and potential to sl

Some people look at light as photons I look at
light simular to radio waves except at a higher
frequency,so if you analyse light from the point
of from radio waves you get a much better
picture as to whats going on.If you have wire
carrying DC current it has a magnetic field
around it,since this field is something it must
have mass although extremely small.When an AC
current is fluctuated at a low frequecy in an
antenna this magnetic field collaspes around the
the antenna, as the frequency increases the speed
at which the field expands and contracts
increases. At certian frequency the waves
propagate where the veloctity of the expanding
magnetic field is c and the contractive force
of the magnetic field is overcome. Since magnetic
fields have mass and light is made up of
magnetic fields,then light must have rest mass.
Therefore at c light waves have a value of
mass and can therfore be slowed down. Light
from a distant star can be slowed down by the
contractive force of the magnetic portion of light
acting on the expanding electromagnetic radiation
after it's covered vast distances. This should
show up as red shifting of a distant star.


Replying to the comment does a magnetic field have
mass, I assumed that since a magnetic exists it
would follow that it would have mass. The proof
that I can offer you is this, if you take a
superconducting air core toriodal inductor and charge it with a powerful magnetic field,then
energy x will have gone into the toriod,since no energy was dissipated in the toriod windings,the
energy must be stored in the toriod.Relying on
energy mass equivalency the toriod with the
magnetic field is going to have more mass than
the one without the field.So therefore it is safe
to assume that a magnetic field has mass.

Further correction, could it be possible that
a magnetic field is stored potential energy and
has no mass? I think it's time that science
investigates this situation, it will answer a
lot of questions.
 
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Answers and Replies

  • #2
chroot
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Uh yeah. Theory development, here you come!

- Warren
 
  • #3
Integral
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It is not clear where you came to the conclusion that the magnetic field has a mass.
 
  • #4
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waving goodbye to particles

okay... let's start from the top here, shall we?
first of all, it is true that at lower frequencies, light behaves more like a wave, and at higher frequencies, it behaves like a particle. judging from this, it looks as though light switches modalities around the visible range.
exactly.
now, since light obviously DOESN'T do this, we're left wondering why it looks this way. the nature of light leaves us thinking then that we are dealing with distinct quanta phasing in and out of matter/energy forms, and the faster that phasing occurs, the more it looks like a particle. the slower the phasing occurs, the more it looks like a wave. also, consider the debroglie wavelength of a photon. it's DARN small!

just wondering... what do you mean by "magnetic field collapse"?
 
  • #5
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once again, the rookie tries to make a point.

well, in the case of an antenna, it's usually a sine wave making that collapse by approaching the zero amplitude line. this means that collapse is symptomatic of a bilateral decay of the field, and is therefore merely the ground state of sinusoidal oscillation. this seems to fit with the fact that photons are all mass and no energy at that point in time, and therefore have zero on the energy output amplitude. when the waveform has maxima or minima, however, then you would have the complete energy form of the quanta.
carl fischbach wrote on 10-13-2003 01:39 AM:
thank you for your comments.
What I ment by "magnetic feld collaspse" is a
current carrying wire who's current is reducing
and the circular field around the wire is moving
inward or collaspsing.

thank you
Carl
 
  • #6
Integral
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You are tip toeing around the definitions of mass. Really all you are saying is that the field has energy. Do not equate energy equivlence to rest mass.


Petmar,
There are very knowledgeable people here who argue the existance of RF photons. Can you prove they do not exist or are you just assumining they do not exist?
 
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who says period of membership proves knowledgability? ;-)

Originally posted by Integral
Petmar,
There are very knowledgeable people here who argue the existance of RF photons. Can you prove they do not exist or are you just assumining they do not exist?
well, i was assuming that photons exist for all wavelengths, however, that depends on whether you're saying "photons" as particles, or "photons" as quanta with no discrete state to determine whether they really are matter, energy, or both.
 
  • #8
carl fischbach
The particle or wave properties of electromagnetic waves

RF or light paricles do not exist.Electromagnetic
waves remain electromagnetic waves at all
frequencies.Starting at the AM band electromagnetic
waves exhibit pure wave properties
and bend around corners as the frequency increases
the wave properties give over to particle properties
the pariticle properties are due to the
pinch off factor,where the wave pinches off when
encoutering a sharp edge,the factor increases as the
wavelength decreases.Microwaves which are
line of sight exhibit mostly particle properties.
X-rays which exhibit pure particle properties pinch
off on the nucleus and therefore produce perfect
X-ray images.
 
  • #9
selfAdjoint
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To me all this says is that they haven't figured out a good experiment to exhibit the RF particle properties. It's silly to say that quanta don't exist, since they are part of the one theory of electromagnetic radiation that covers all of the spectrum. It's just that they aren't observed. The fact that RF radiation in its wave nature exhibits all the phenomena of wave-nature is no surprise, X-rays do too if sufficiantly encouraged.

Notice that the Lamb shift, the defining experiment for QED, was done with microwaves, far longer than visual waves. And that effect is always calculated with photons. Superaccurately too.
 
  • #10
Nereid
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2 slit experiment?

What is the longest wavelength EM radiation which has been used to show particle behaviour?

IIRC, TES and superconducting tunnel junction detectors can both detect single photons of up to ~0.1mm wavelength.
 
  • #11
carl fischbach
I stand corrected

Individual packets of light or photons make perfect sense if you look at then as a short
burst of electromagnetic radition emitted when an
electron of an atom changes orbital,but to say that there
made up of something other than electric and
magnetic fields is false,to say that there
rest mass is different from RF radiation rest mass is false. Also I don't buy into the fact that
photons would exist for AM band RF radiation.
 
  • #12
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well, i still don't get part of it...

so, is that right, then, about the nodes of the waves possibly being the points where matter-like interactions would be seen the most, etc?
 
  • #13
Nereid
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carl: Also I don't buy into the fact that photons would exist for AM band RF radiation
What specific observational/experimental data can you point to which leads you to conclude that AM RF is different from the rest of the EM spectrum, from TeV gammas to ELF radio?
 

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