Bizarre Magnetic Inner-Action With Aluminium

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…
Video Rating: 4 / 5

    JVZoo Product Feed


No ping yet

  1. samdomding says:

    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

  2. samdomding says:

    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)

  3. MeleaBianchini says:

    By the way what happened with newman’s motor?

  4. mtn silviu says:

    youtube.com/watch?v=keMpUaoA3Tg its the Lentz’s law ,the same it happends
    with the copper

  5. MeleaBianchini says:

    Tis is lenz’s law demonstration

  6. SonsOfTesla.Com says:

    which produces greater eddy currents? copper or aluminium? Would a block of
    copper behave the same way?

  7. Madkite says:

    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.

  8. bongcouver says:

    I believe it’s induced eddy currents in the aluminum. Faraday’s and
    Ampere’s laws working together. “Nature abhors a change in flux.”

  9. James Roney Stators says:

    Interesting. Thanks for the heads up! Cheers!

  10. autarchex says:

    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.

  11. rpaull3 says:

    I heard they were thinking about using this concept for recovering falling
    things from space. like as a sort of braking system.

  12. James Roney Stators says:

    Nope. No mystery here. But my video makes for a catchy title to get people
    to stop and think. Cheers!

  13. bongcouver says:

    nope. that was me. I’m a dumb animal sometimes

  14. Edward Mitchell says:

    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.

  15. Vicryl007 says:

    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

  16. James Roney Stators says:

    Yes. I’ve noticed that over the last 50 years as I’ve worked in my fare
    share of TV’s.

  17. Bart Murphy says:

    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.

  18. Cminecraft says:

    wheres newman motor!

  19. Edward Mitchell says:

    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.

  20. Dennis Peacock says:

    you have to move the magnet to produce a current, no free energy there

  21. X Creslex X says:

    Still hes motor, dint go anywhere…

  22. meex88hiphop says:

    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

  23. CiFiLLC says:

    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.

  24. rpaull3 says:

    and modern hard drive plates are glass with a coating!

  25. James Roney Stators says:

    Regardless, it’s non-magnetic. But thanks for the heads up, though. Cheers!

Leave a Reply

Your email address will not be published.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>