never saw a [d'Arsonval™] "meter" and know How to READ ONE
(Like man, in magically presented 'science' courses, have these seen the word 'interpolation' at all ..for one thing.)

(I base this take on a few--not statistically-significant--examples) in past few years, so I quite appreciate that Out There may well exist..
..a wannabe Dick Feynman, y'know. Gonna be a tough slog for That one.