Magnetic Recording P5

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Iron in our Electrical World Part 5: Magnetic recording of data on hard drives, video and audio tapes. See how data is magnetically recorded into iron alloy materials. Final conclusion and credits for the 19 minute video. This is part 5 of 5. See the other parts on our youtube channel.
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I heard that hard disk platters were so flat that if you put two of them up against each other they would stick together.

infinitecanadian