antique illustration of scientific discoveries, electricity and magnetism: bunsen battery - 本生燈 幅插畫檔、美工圖案、卡通及圖標電池, 歷史
the bunsen cell is a zinc-carbon primary cell (colloquially called a "battery") composed of a zinc anode in dilute sulfuric acid separated by a porous pot from a carbon cathode in nitric or chromic acid. - 本生燈 幅插畫檔、美工圖案、卡通及圖標復古風格, 電池