Long before we had any specific knowledge about electricity, people knew that fish that could generate electricity would give out electric shocks. According to ancient Egyptian books written in 2750 BC, these fish are called "the lightning messengers of the Nile" and are the protectors of all other fish. About 2500 years later, the Greeks, Romans, Arab naturalists and Arab medical scientists recorded this kind of fish that can generate electricity again.

1832, Frenchman Pixii made the world's first experimental generator. /kloc-in 0/850, Swan, England made filament bulbs out of paper carbon. 1866, Siemens of Germany manufactured a suitable generator.

1879101October 2 1 day, Edison in the United States (and joseph swan in Britain) studied the carbon filament light bulb. After more than a thousand experiments, Edison's carbon filament incandescent bulb has been put into practice, so it is said that he invented the electric light.

Jack kilby independently invented the integrated circuit in 1958, and robert noyce independently invented the integrated circuit in 1959. Nowadays, a large number of transistors, diodes, resistors, capacitors and other electronic components can be assembled in a single integrated circuit.

The real application of electricity was from the end of 18 to the end of 19, and it didn't really enter the homes of ordinary people until the second1century of the 20th century.

Extended data electrification phenomenon

Triboelectrification is a physical phenomenon that objects are charged by friction. The step of triboelectrification is to use two different insulators to rub each other, so that the outermost electrons can get enough energy to transfer. After triboelectrification, these two insulators must have equal and opposite charges.

Electrostatic adsorption means that when an object with static electricity approaches a tiny object without static electricity, the free charge on the surface of the tiny object is transferred, which induces the opposite electrical property to the object with static electricity and is attracted and attached by the object with static electricity. Using the principle of electrostatic attraction of light and small objects, the effect of industrial dust collection can be achieved.

Electrostatic induction is a phenomenon that the charge in a conductor redistributes under the action of an external electric field, which was discovered by British scientist John Canton and Swedish scientist john carr Wilke at 1753 and 1762 respectively.

Electrostatic shielding means that for the grounded cavity conductor, the external electric field will not affect the objects in the cavity, and the electric field of the charged body in the cavity will not affect the objects outside the cavity.

Electrostatic shielding is widely used, such as the metal mesh cover on the outside of electronic instruments and the metal skin wrapped on the outside of cables to prevent the external electric field from affecting the inside. It should be noted that if the external electric field is an alternating electric field, the condition of electrostatic shielding no longer holds. See electromagnetic shielding.

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