Fourteen months ago, at "Market Day at Birka", I purchased a Empress Maria Theresa thaler (a silver trade coin that has been in continuous striking since 1780) for use in interpretation at Kings Landing. Immediately after purchase, it went M.I.A
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This is what is hanging over my shop door and it could release without warning at any time. It ranges from 12" to 18" thick and is made of compressed snow that has been soaked with rain and then re-frozen. I estimate that this overhang may weigh well over a ton
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A lot of folks don't know that disk drive heads are positioned using the equivalent of an audio speaker coil (with a feedback loop to determine position). Audio coil, eh?