Aparatul este un gen de pila de combustie. Asa se numeste celula galvanica in care, in timpul unei reactii chimice, se formeaza electricitate.
Pana nu de mult, pilele de combustie se foloseau in constructia submarinelor si a satelitilor. Acum, oamenii de stiinta din intreaga lume se intrec in conceperea unui nou model de pile de combustie, care sa aiba o utilizare generala. Concernele auto aloca sume imense de bani pentru construirea unor automobile ale caror motoare sa fie puse in functiune de electricitatea creata in reactia dintre hidrogen si oxigen, in astfel de pile. Din tevile de esapament ale unor asemenea automobile nu mai ies noxe, ci abur.
Japonezii, la randul lor, construiesc pile de combustie alimentate cu alcool pentru instalatiile electronice.
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