This page discusses Luigi Galvani's 18th-century discovery of electrical effects in frog legs, leading to advancements in nerve conduction research. It describes a voltaic cell, an electrochemical dev...This page discusses Luigi Galvani's 18th-century discovery of electrical effects in frog legs, leading to advancements in nerve conduction research. It describes a voltaic cell, an electrochemical device that generates electrical energy via spontaneous redox reactions, including its two half-cells: the anode, which undergoes oxidation (losing zinc), and the cathode, which undergoes reduction (gaining copper).