Voltaic Crown of Cups
branch of study: electrodynamics
inventor: Alessandro Volta, 1799
The Crown of Cups is a modification of the Voltaic Pile. A rectangular plate of copper and zinc are connected by a wire soldered to both plates and thus an "electric element" is defined. One of the plates is plunged into salt water in one cup, its opposite goes into the next cup. Here a second element is used (with the same plate beginning as in the first cup) to make a connection to the third cup and so forth. Hence in every cup of the crown you will find both elements except for the first and the last cup.