Story about battery

Car battery also called "electric volts heap" is a man named Tak Alexandria calendar of the Italian people volts invention. To commemorate his contribution, people put voltage measurement units called volts. Such as our flashlight's battery voltage is 1.5 volts, we home lamp voltage is 220 volts.   volts are researchers at the University of Pavia Italian physicist electricity.   have one day, saw a volts Galvani of a paper, saying that the storage of animal muscle in the electricity, you can put the muscle with a metal contact electric leads. Read this thesis, volts very excited, we decided to do this experiment. He repeated much live frog experiments, and finally found that the actual situation is not as add Galvani said, but two different kinds of metal contact resulting from current, only to make frog legs and the muscle contraction charge.   discovery in order to prove that they are correct, volts decide better understand the source of electricity.   One day, he come up with a tin film and a silver coin, these two metals on her tongue up, and then ask the assistant to the metal wires connecting them, he felt a mouthful of sour abuse.   Then, he will film the exchange of silver and tin position, when the assistant metal wire connected to the moment, are a mouthful of salty volts.   These experiments proved that the two metals under certain conditions will be able to generate electricity. Volts want, as long as the current leads can this can be a great role.   volts through repeated experiments, and finally invented by later generations called "volt electric heap" battery, which is in between copper and zinc plates on cardboard folder and the use of saline-soaked piece of cloth, a layer of a layer stack of batteries. Such batteries are still used today.