Have you ever wanted to visualize magnetic fields better?You can get a good sense of the strength and direction of a strong field by loosely holding a magnet in your closed fist, but I wasn't happy with the resolution or clarity of this method: It's too hard to discern torques from translational fo...By: GordonKirkwood
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from Instructables: exploring http://www.instructables.com/id/Laser-Magnetic-Field-Mapping/
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