Ferrofluid

Check out these amazing video clips of ferrofluid, a solution containing nanoscale particles that respond to a magnetic field.

You can buy this from a number of places online, but Dan from Dan’s Data (above) recommends Educational Innovations, “who sell all sorts of things that science teachers need. Or don’t need, but want anyway, because if you’re going to have to deal with annoying teenagers all day for not enough money, you might as well play with some cool toys by way of compensation.” Makes me want to be a teacher all over again.

Update: Sachiko Kodama does interesting things with ferrofluid, and has lots of video on her website:

3 Replies to “Ferrofluid”

  1. Dear Sir / Madam ,

    Here are my ferrofluids’ requirements :

    Carrier Liquid = water
    % of magnetites = @ 20 — 30 %
    Viscosity = @ less than 20 Cps.
    Saturation Magnetisation = any ( say @ 100 guass & more )
    Coercivity = highest possible ( say @ 300 Oerstads or more )
    Particle size of magnetite = NANO PREFERRED

    Please list ALL YOUR FERRO FLUIDS WITH DIFFERENT PRICE RANGES .

    QUANTITY REQUIRED = SAY 10 LITERS PER MONTH .

    SAMPLES ARE MOST WELCOME FOR MY TESTS.

    These ferrofluids will be used in making SOLID INKS OF SPECIAL PROPERTIES.

    Please feel free to ask any question you have.

    Please send available literatures ASAP.

    Best regards,
    JN.

  2. haha hello there chaps. how do you do? care for some fish and chips? how about some tea and crumpets? no? well fine then. we’ll just be on our merry way. tra-la-la-la-la.

Leave a Reply

Your email address will not be published. Required fields are marked *