3 ms·

> Not everything changes though - gold plating thickness is measured by the micro-inch Considering how much manufacturing and science etc. has fully migrated t

• tadfisher 2y ago
  Like in machining, there's a long history of measuring everything in "thou" (micro-inch sounds proleptic to me, and you'll see "mil" used in the EDA space). All the tooling uses it, standardized components use it (I can drop a 74-series TTL chip from the 1970s in a modern board), and everyone learns it when they start using EDA. Recently there has been a shift to metric in EDA software, so you'll see often see multiples of 2.54mm, and packages are switching to metric for the fine-pitch stuff. Often you'll have spacing in both units in the same design.
  • DiggyJohnson 2y ago
    Not every day these days do I encounter a new word: proleptic. 1 the anticipation and answering of possible objections in rhetorical speech. 2 the representation of a thing as existing before it actually does or did so, as in he was a dead man when he entered. Compare with analepsis: the destruction of the Vendôme Column and his part in it are foreshadowed in moments of haunting prolepsis.