Electromagnet Hard Drive Erasure

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Torture test of a Seagate hard drive using magnets, including my grossly overpowered electromagnet made from a microwave oven transformer (MOT). I try to quantify the difference in magnetic strength between the different magnets. I then inflict a series of escalating traumas upon the hard drive, following each assault by a scripted routine of tests that generates a wealth of data about the drive's status. When will this hard drive fail? And how? Can you really erase data from a hard drive using a magnet?


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