Say that you suddenly wake up in the year 1875. You end up talking to someone and you want to convince them that you’re from the future. How do you do that?
Say that you suddenly wake up in the year 1875. You end up talking to someone and you want to convince them that you’re from the future. How do you do that?
I was thinking maybe gramophone or earlier precursors. But looking at those things they’re mechanically coupled not electrically, so not really the same thing.