The photovoltaic effect is the generation of voltage and electric current in a material upon exposure to light. It is a physical and chemical phenomenon.
invented by Moritz Von Jacobi
An electric motor is an electrical machine that converts electrical energy into…
invented by Carl Gassner
A zinc–carbon battery is a dry cell primary battery that provides direct…
invented by Elisha Otis
An elevator (North American English)[1] or lift (Commonwealth English)[2] is a…
invented by Nicolas appert
Canning is a method of food preservation in which food is processed and sealed…
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Inventions that changed the world
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