Chinyorwa: Muzana ramakore rechitanhatu BC, muzivi wechiGreek Thales weMiletus akaedza nematanda eamber uye izvi zvakaedzwa zvaive zvidzidzo zvekutanga mukugadzirwa kwesimba remagetsi. Nepo nzira iyi, yava kuzivikanwa seye triboelectric mhedzisiro, inogona kusimudza zvinhu zvakareruka uye kugadzira sparks, haina kunyatsoshanda. Yakanga isati yasvika pakugadzirwa kwepombi ye voltaic muzana ramakore regumi nemasere kuti sosi inoshanda yemagetsi yakawanikwa. Pombi ye voltaic, uye chizvarwa chayo chazvino, bhatiri remagetsi, inochengeta simba nemakemikari uye rinoita kuti riwanikwe pane zvinodiwa nenzira yesimba remagetsi. Bhatiri isimba rakasiyana-siyana uye rakajairika simba rinonyanya kukodzera kune akawanda mashandisirwo, asi simba rayo rekuchengetedza rakapera, uye kana richinge rabhadharwa rinofanira kuraswa kana kubhadhariswazve.
churu chema voltaic