In 1799, Alessandro Volta, professor of experimental physics at the University of Pavia managed to make a ‘pile’ of discs, that worked indefinitely, it was the first electric battery. Underneath you can find a piece of Volta’s recipe for making a pile.
The recipe for making the battery by Alessandro Volta
“… I provide a few dozen small round plates or discs of copper, brass or preferably Silver, an inch in diameter more or less (coins, for example), and an equal number of plates of tin, or, what is better, of zinc, of nearly the same size and shape. I say ‘nearly’ because great precisioni s not necessari, and the size is general, as well as the shape of the metal pieces, is merely arbitrary: care only must be taken that they may be capable of being conveniently arranged one above the other, in the form of a column. I prepare also a pretty large number of circular pieces of paste-board, or any other spongy matter capable of absorbing and retaining a great deal of water or misture, with wich they must be well impregnanted in order to censure success to the experiments….
Having all these pieces ready in good state, that i sto say, the metallic discs very clean and dry, and the non metallic ones well moistened with common water or, what is much better, salt water, and slightly wiped that the misture may not drop off, I have nothing to do but to arrange them…”
Nessun commento:
Posta un commento