First of all, no one would understand you, but how someone already pointed out, make a spool with copper and spin it. For bonus points, put a iron slab inside the spool
Edit: as someone pointed out you kinda need a magnet
eh language barriers are generally overstated i think, people with completely unrelated languages develop pidgins within the decade, and if you're dropped into a place where they speak some complete gibberish like french you'll still just naturally figure it out given a year or so of being forced to endure it.
maybe, but frankly i think it's at least equally likely that they just see you as a blessing from the heavens and frankly get a little too enthusiastic about your knowledge.
English has changed a lot (no I've not read a lot of poetry in languages other than my own), some others may have changed less. Maybe Aramaic, Hebrew, Arabic. Greek has changed but some people know ancient Greek