In the early days of electrical research a common method of detecting electric current was by means of a frog's leg galvanoscope for which a good supply of live frogs was kept to hand by the researcher ready to have their legs prepared for the galvanoscope.
A common method of detecting electric current was by means of a frog's leg galvanoscope for which a good supply of live frogs was kept to hand by the researcher ready to have their legs prepared for the galvanoscope. This was in the early days of electrical research.