Amabhethri asungulwa kanjani?
UVolta wasungula ibhethri lokuqala cishe ngo-1800. Yayisebenza ngokugcina nokukhulula amandla abangelwa ukusabela kwamakhemikhali. Kusukela ngalesisikhathi amabhethri aye athuthuka kuphela ngokuhamba kwesikhathi. Cishe ngasekupheleni kwekhulu le-19 amabhethri ayewumthombo oyinhloko kagesi wezinhlelo zikagesi. Ngokuthuthuka okuqhubekayo kwamabhethri esikhathini esizayo ayesetshenziswa emikhiqizweni eminingi kagesi efana nomakhalekhukhwini, amakhompyutha nama-TV.