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This is a video on how to make a light box to illuminate your home made Ferrocell. For information on how to make the actual Ferrocell...see link below. Remember to Upvote if you enjoyed my post 👍 Be

A Ferrocell is a simple device that allows you to view a Magnetic Field in a way you've never seen before. Ferrocells can be purchased online, but are very expensive, typically a couple of hundred dollars.