Interesting spelling for "Ampèrian". In French, it's spelled "ampérien" with an acute accent, not "ampèrien" which would look and sound wrong even though it's derived from "Ampère".
https://en.wikipedia.org/wiki/Andr%C3%A9-Marie_Amp%C3%A8re
https://fr.wiktionary.org/wiki/amp%C3%A9rien
#spelling #english #anglais #français #french #accents #physics