
Magnets
have fascinated me since I was a child, and I expect many of us can say the same
thing. I, however cannot tell you much more than you probably already
know about the common magnet. They are fun to play with and I have a few around my place. You
know of their north and south poles and how they react to each other.
Magnetism goes along hand in hand with electromagnetic. I will get into that a
bit in the next topic page on Electricity. In the subject of electromagnetism I have
been, pretty well dipped, having a background in electrical, and electronics.
Historically there were magnetic Lodestones. This makes the magnet real.
Also, with what we know today... magnetism is an important part of our Universe,
as well as for technology. For the theory of electromagnetism; in
1831, Faraday's experiment of Inducing Current into a wire loop with some of it
coiled, by only moving a magnet close to it__ pretty well started it all off.
From there, it was also found that by moving a wire loop through a stationary
magnetic field, also induces current into the loop. Thus, we now have
electro-magnetism.
~~~~~~~~
...Site
updating 06-05-2011...
If we use iron filings and sprinkle them around a single bar magnet; they form a
pattern of lines. These lines converge at one end of the bar, and spread out as they
circle about the bar, and then converge on the other end. If the bar magnet
is suspended, the lines will spread out as three dimensional, from end to end.
If the magnet is enclosed in a vacuum chamber, eliminating any influence from
air, the lines are basically still the same. The iron filings form into lines
because they gain magnetism, and when side by side running sort of parallel,
their like charges repel to separate them into lines. The same effect is
very noticeable when a person or animal's body has an electro-static charge;
their hair will spread out away from their body trying to get as far away from
any like charged hair next to itself. Running a comb through your hair on
a dry low humidity day gives a little of this effect, when your hair won't lay down.
What we can surmise, from the iron filings externally around and about the magnet,
is that this external area or region has some phenomena existing, that is not a
hard chunk of the metal bar magnet. We can imagine that some invisible
rays are being continually radiated; charging the space surrounding the magnet
possibly... Or, instead, by doing some more recent musing about this situation... what
if we first think about the inner Space within the atoms of the bar magnet.
If this space is filled with invisible, idle, almost mass-less particles, as
quarks or photons... do you suppose they would have some attributes that are
associated with the magnetism of the magnet? Could they be aligning
themselves in some magnetic specific motions, and or directions for example? And, since there
are no walls on the Space of the atom... this Space of the inner atoms is
probably touching the intermediate Space in and about the outside of the magnet.
Would it seem reasonable for these external idle intermediate idle particles to
also be set into some same attributes like inside the magnet atoms?
This would mean that there would be no radiated beams, rays, or particle
radiation required. It
would be idle particles in close proximity to each other interacting internally
and externally. This has similarities like a sponge; holding a lot of water, but if
we put it in a bucket of water... it would seem reasonable the water in the
sponge, and in the bucket would interface with each other, and the temperatures would
even out without any physical radiation.
Now that I have set up this train of thought... lets go for two bar magnets in a
vacuum... suspended in fixed positions, with 'unlike' ends a short
distance apart. Again with the iron filings. This time they do
similar to the single bar magnet but longer lines, and the region between the two
interfacing ends, has
iron filings aligning in semi-parallel lines between these two unlike ends.
We all know that unlike magnet ends come together. I need
also to point out that there are a lot of iron filing lines out and about, and
they converge towards the head ends of the magnets, and come closer together as
they converge into the ends of
the magnets; but, there may be a thinning out of these lines, like blank regions very
near the ends. This is due to these regions being the stronger areas of
magnetism; which would seem like there should be many lines... But, it is like
having a lot of people trying to push a dozen elephants side by side down a
narrow alley; they will not fit! There is a high density of forces, but the iron filings
repel each other side by side, and will not fit close together near the ends.
The lines emanating from the two unlike ends in close proximity, go from one
magnet to the other. If the two magnets are allowed to come together they
become as one longer magnet. If you put your hand between them... you can
feel the pressure squeezing your hand. It is obvious that there is
pressure involved, and the directions of its motion. Without knowing
exactly how the magnetic force actions work... we cannot say for sure what is
happening, but I can definitely state: there is pressure involved.
If we reverse one magnet 180 degrees, we have 'like' ends facing each
other a short distance apart. Again we know what they are trying to do...
repel each other. Repelling is pushing, or exerting pressure resistance
against any motion trying to shove both magnets together. Both magnets have lines of iron filings surrounding them
as before, but the lines of like polarity on the near ends, are
trying to bend away from each other. We know that like magnetic polarities
push away from each other, but exactly how; is not known, but again there is
pressure, and it is measurable.
The summation of the actions of the magnets, is that, mutually the magnets act for or against
each other's regions surrounding each. The the magnets hold each other
together as one when unlike ends come together, but there is a lot of pseudo
'action at a distance' seeming to happen externally without the magnets touching
physically. It is not a function of air since we made a vacuum to
experiment within. Since all bodies of matter are 99.999... % Space it
would appear, to me at least, there is some "goings on" in this inner atom Space
arena... I see no reason why inner, intermediate, and outer Space wouldn't
all interact with each other. We talk about fields, charges, and etc.. but
seem to ignore that Space is all pervasive. There is no good logic to
think that Space surrounding a physical body, is not intimately in contact with
the Space within the atoms of the same body. It is like matter is
super-imposed upon Space, and goes along with at least some actions of Space, or
Space conditions.
Herein this above update I have related some things that are at this point pure
fantasy... But, there is nothing wrong with fantasy if related as such.
And, these items I have written, were thoughts triggered from looking at some
photos in a physics book I recently was looking through again... So I put
them here for me to wonder about, and possibly you. It seems a reasonable
possibility from the iron filings... the phenomena of magnetism is involved with
the space surrounding it and any space within itself. But, yes it is true,
I really do not know what gives magnets their motivation.
I would like to mention that these two bar magnets are common matter, and as
well as their having properties of magnetism, they have measurable mass, and
will offer pressure resistance, and their magnetic strength as well as inertial
strength can be measured with pressure sensing devices. Exactly how the
magnetic force actions work, is still a mystery, as with gravitation. I
say again, no matter how magnets work, there is physical pressure action being
exerted; when magnets accelerate together or accelerate apart. As far as I
can tell... you cannot have actions of magnetism without physical pressure
brought to bear.
~~~~~~~
We use
the principle of the electro-magnet in things like solenoid valves and audio sound
speakers. When a solenoid valve is energized there is a coil of wire that
makes a magnetic field that draws a metal core up into the coil actuating the
valve. Solenoid valves are use by millions, in industry. In our
lives you will find them inside clothes washing machines, and refrigerator
drinking water systems, for example. This same type of action happens in an
audio loudspeaker. A varying current, alternating at an audio
frequency, of electricity is passed through a coil that moves the plunger which
also has attached a circular movable diaphragm. This diaphragm pulsates
the air to give us sound waves. In reverse, a diaphragm spoken into, is
hooked to a magnet that can move back and forth through a coil of wire, and will
induce audio varying current in the wire. This last sentence describes early
types of microphones. (There are also other types of microphones.)
However, just about all speakers still use the principle stated. This
means speakers in your radios, televisions, hearing aids, stereos, music
amplifiers, computers, phones, headsets, and movie sound speakers would almost
disappear if you took away electromagnetism. Give a thought to what life
for us, without speakers, would be like!
Most
all credit cards with the strip on the back are magnetic. Now, many motels
and hotels use magnetic swipe cards for door keys. Company and governments
use swipe ID cards for authorized entry clearance identification. Now we
have magnetic Passport swipe cards.
Lastly
here I need to mention that motors and generators have what is called a stator.
These stators are the stationary electromagnetic windings inside, and sometimes
actually physical permanent magnets mounted to the motor housings. Think
about how many electric motors we have, and use. Most every vehicle has an
electric starter motor. We gave up the hand crank cars quite awhile ago.
Tape decks & cassette drives, and CD & DVD drives, without motors would be a
problem. Drills, lathes, routers, rotary saws, conveyor belts, blowers,
appliances,
compressors, elevators, are just a few items using mostly electric motors... and
just imagine how many more are out there. They require magnetism to run!
And,
permanent magnets are for holding cupboard doors closed. Magnets are used
to actuate switches. There are plastic/magnetized flexible signs and cards
that can be put on vehicle doors, or refrigerator doors. There is an
abundance of toys that use magnets.
If
magnetism was taken away from us... it would be a disaster!
At least for modern mankind.
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