Comment on Machine Thinking - Origins of Precision

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jadero@mander.xyz ⁨11⁩ ⁨months⁩ ago

I find it interesting that our current definition of the inch is based on an industrial standard that had been in use for decades. And that that standard was, in effect, created by one man.

tldr: Carl Edvard Johansson was a Swedish manufacturer of gauge blocks who built his one-inch blocks by ignoring the differences between the UK standard inch and the US standard inch. Those standards were only a few millionths of an “inch” (pick one!) apart anyway, so throwing away most of the decimal places must have seemed like a good idea.

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