Riddle: why does the magnetic move the aluminum plates, yet has no attraction to the magnet? On a personal note: I have a new lab and look forward to sharing…
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Nov
09
Bizarre Magnetic Inner-Action With Aluminium
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samdomding says:
November 9, 2014 at 6:58 pm (UTC 0)
One reason why they use this principle in Electric Meters where an
aluminium disc is used instead of a ferrous metal disc, so eddy currents
generated by the use of electricity generates a magnetic field in a single
loop coil which then starts to rotate the aluminium disc to register the
electric usage, if they were to use a ferrous disc, then people would be
able to stall the disc using a powerful magnet and get away with free
energy!
samdomding says:
November 9, 2014 at 7:20 pm (UTC 0)
Another way to explain thos phenomenon is that a moving magent above an
aluminium plate induces electric current as the flux lines of magent
interact with the atomic structure of aluminium, a current is induced, it
may be known as Eddy current, it is no different to a copper wire being
moved in a magnetic field and it will generate electric current, so now as
the current in a disc dissipates within itself, i.e. the current flows
across the surface of the disc, unlike in a copper wire, where the current
cannot dissipate (flow) unless its both ends are joined together, in a disc
both ends are almost joined as the disc is very thin, so this dissipation
of current causes an opposing magnetic field, which makes the disc move as
you move the magnet. (my own theory unproven of course)
MeleaBianchini says:
November 9, 2014 at 7:51 pm (UTC 0)
By the way what happened with newman’s motor?
mtn silviu says:
November 9, 2014 at 8:45 pm (UTC 0)
youtube.com/watch?v=keMpUaoA3Tg its the Lentz’s law ,the same it happends
with the copper
MeleaBianchini says:
November 9, 2014 at 8:57 pm (UTC 0)
Tis is lenz’s law demonstration
SonsOfTesla.Com says:
November 9, 2014 at 9:37 pm (UTC 0)
which produces greater eddy currents? copper or aluminium? Would a block of
copper behave the same way?
Madkite says:
November 9, 2014 at 10:28 pm (UTC 0)
This would be entirely expected by any electrical engineer. If you had a
superconductor it would say locked without slipping at all. There is no
mystery as to how it works.
bongcouver says:
November 9, 2014 at 11:02 pm (UTC 0)
I believe it’s induced eddy currents in the aluminum. Faraday’s and
Ampere’s laws working together. “Nature abhors a change in flux.”
James Roney Stators says:
November 9, 2014 at 11:21 pm (UTC 0)
Interesting. Thanks for the heads up! Cheers!
autarchex says:
November 9, 2014 at 11:55 pm (UTC 0)
Moving magnetic fields will induce eddy currents in aluminum. The eddy
current opposes the magnet’s field, resulting in a force on the aluminum
plate. Copper, or any other conductor, will behave similarly. Eventually it
will also make the plate warm – the energy you put into the system (with
your arm), minus what went into moving the plate, will be dissipated as
heat in the aluminum. I’ve seen this used to heat water: use wind to spin
magnets over a copper plate with water channels in it.
rpaull3 says:
November 9, 2014 at 11:57 pm (UTC 0)
I heard they were thinking about using this concept for recovering falling
things from space. like as a sort of braking system.
James Roney Stators says:
November 10, 2014 at 12:29 am (UTC 0)
Nope. No mystery here. But my video makes for a catchy title to get people
to stop and think. Cheers!
bongcouver says:
November 10, 2014 at 12:43 am (UTC 0)
nope. that was me. I’m a dumb animal sometimes
Edward Mitchell says:
November 10, 2014 at 1:26 am (UTC 0)
I think this has to do with Aluminum having just one unpaired electron in
it’s outer orbit, it’s just a hypothesis as it needs to be testing by
trying this on other elements in the same group but I think that is the
primary reason for this attraction. For an experiment it would be good to
use an AC magnet as that will pick up an aluminum bar and can be used on
those other elements in the same group on the periodic table of the
elements with safety as some are toxic to us.
Vicryl007 says:
November 10, 2014 at 2:13 am (UTC 0)
Bah,, that’s no magnet,, its just a block of aluminum. The magnet is under
the table and you’re sliding it back and forth to move the metal disk and
plate
James Roney Stators says:
November 10, 2014 at 2:34 am (UTC 0)
Yes. I’ve noticed that over the last 50 years as I’ve worked in my fare
share of TV’s.
Bart Murphy says:
November 10, 2014 at 2:54 am (UTC 0)
It is eddie currents. I work with super conducting magnets all capable of
producing a 9T field. I have a similar demo that is used for tours of the
facility. In my demo, I use a 2″ neodymium spherical magnet and drop it
through a schedule 80 ofhc copper pipe. If you are trying to work it out,
think if the rate of motion across the plate as the frequency.
Cminecraft says:
November 10, 2014 at 3:47 am (UTC 0)
wheres newman motor!
Edward Mitchell says:
November 10, 2014 at 4:33 am (UTC 0)
Ever since my early days I have wondered about this as the oxygen atoms are
attracted to a permanent magnet thus it seem logical that one unpaired
electron will attracted to moving magnetic fields. I just need time to be
able to test these hypotheses as the water for fuel technology controls
just about all of my time now days. Once this technology is over I will
have free time to explore all of my other long held ideas that need
testing. Hopefully a new theory will be introduced soon.
Dennis Peacock says:
November 10, 2014 at 5:08 am (UTC 0)
you have to move the magnet to produce a current, no free energy there
X Creslex X says:
November 10, 2014 at 5:11 am (UTC 0)
Still hes motor, dint go anywhere…
meex88hiphop says:
November 10, 2014 at 5:45 am (UTC 0)
just like with copper. BUT aluminum is used to shield the magnets, likt in
old crt TV-s, there are aluminum shields arround magnets on speakers
CiFiLLC says:
November 10, 2014 at 6:45 am (UTC 0)
ok so if you added a block of aluminium to the end of the stator that might
give you enough momentum to make the wheel go faster. reason being that it
reflects the magnets at the zero end of the stator put some aluminium there
to push the magnets on the wheel harder than just with the stator alone.
rpaull3 says:
November 10, 2014 at 6:50 am (UTC 0)
and modern hard drive plates are glass with a coating!
James Roney Stators says:
November 10, 2014 at 7:37 am (UTC 0)
Regardless, it’s non-magnetic. But thanks for the heads up, though. Cheers!