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Trust our friends Lenore and Windell at Evil Mad Scientist Laboratories to take something most of us take for granted and explore it thoroughly. In their recent column Start Seeing Magnetic Fields, they explore a bunch of different ways of visualizing the fields, ranging from the classic iron filings method to “magnetic field viewing film” to using a magnetoresistive sensor from SparkFun. Check it out!

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John Baichtal

My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal nerdage.net


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  1. BuzzBadpants says:

    I’m personally a fan of using old CRT monitors to visualize magnetic fields. Of course, it completely ruins the monitor, but who the hell uses CRTs anymore anyways? You can probably find one in a junk bin at work or something.