Ever wonder how today’s hard drives are manufactured? I think it’s amazing that we can buy hard drives that store more than a terabyte for about a hundred dollars. When you watch this video, you’ll see how this miracle in manufacture is done.
All operations are performed in a clean room environment, because clearances and tolerances are measured in fractions of microns. (A micron is about 0.00004 inch. A human hair ranges from about 20 to 150 microns in diameter.) In operation, the read/write head of a modern hard drive flies a few nanometers above the platter surface. A fingerprint on a platter could cause a head crash.
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