Need to Get some random things for a project

Discussion in 'General Off-Topic Chat' started by imgod22222, May 17, 2007.

  1. imgod22222
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    imgod22222 GBAtemp's Original No-faced Member

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    Does anyone know of any 'local shops' that sell those little round strong magnets (the ones like a cm in diameter, and are REALLY strong)

    and maybe a disc of magnetic metal and is aluminum magnetic?
     
  2. FAST6191

    FAST6191 Techromancer

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    neodymium magnets are what you want, your best bet is a tool shop (magnetic pickup tools and some sailing supplies), gadget shop or science kit. Disc, I suggest a steel washer and make a coil around it, pass a DC voltage over the coil and bam an electromagnet (be sensible and do not chew on the live ends and all that).
    The washer (assuming you are not using AC) will become magnetic as well: search for hysteresis loop (remanance is what you will end up with):
    [​IMG]

    Aluminium is not magnetic (like most iron, cobalt and nickel alloys that is), it makes for a reasonable electromagnet though.
     
  3. ndela007

    ndela007 GBAtemp Regular

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    sometimes if you get lucky you can find some decent magnets in the back of radio shacks or find a hobby store.

    Also my friend got some decent magnets from steve spangler science. Forgot if we can hotlink to store or not, but a search on google will pull it up.
     
  4. imgod22222
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    imgod22222 GBAtemp's Original No-faced Member

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    [​IMG] who said i was making an electromagnet? Thanks alot, FAST!

    Believe it or not this is for history class. [​IMG] He wants us to be 'creative' but i guess an electromagnet is creative [​IMG]

    And thnx, i was talking about neodymium magnets.

    Our project (group) is still in the planning phase, and if you can't tell, we're procrastinators, so we don't really know what we're gonna do yet :'(
     
  5. fischju_original

    fischju_original I used to be a jerk before i got banned

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    There is an army surplus store near here with tons of them for cheap
     
  6. Xeijin

    Xeijin GBAtemp Fan

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