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by camkego
42 days ago
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If you look at the start of that episode, there is another crazy thing in there, a device which allows you to "see" the bits on a credit card track. Apparently something called "magnetic viewing film" can allow you to see the bits on the magnetic stripes of credit cards. I had never heard about this before. Link to video time: https://archive.org/details/bbc-connections-1978/Connections... |
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