electrical properties of amber discovered in ancient China and India, and in old Greek legends describe experiments philosopher Thales of Miletus with amber, which he rubbed woolen cloth.After this procedure, the stone acquires property to attract light objects: a feather, a piece of paper, etc."Electron" is translated from the Greek as "amber", he later gave his name to all the processes of electrification.
Prior to the XVII century on the properties of amber and no one remembered the problems of electrification one close not engaged.Only in 1600 the Englishman, the practitioner William Gilbert published a voluminous work dedicated to the magnets and the properties of magnetism, where he gave a description of the properties of objects found i
n nature, and conditionally divided them into those that are electrified, and those that can not be electrifying.
In the middle of XVII century the German scientist O. Gericke created a machine with which demonstrated the properties of electrification.Over time, this machine is improved Hauksbee Englishman, German scientists Bose and Winkler.Experiments with these machines have helped to make a number of discoveries and physics from France Du Fairies and scientists from England Gray and Wheeler.
English physicist in 1729 found that some bodies have the ability to pass electricity through themselves, while others do not have a conductivity.In the same year, mathematician and philosopher Mushenbrek from Leiden showed that jar, pasted over with metal foil, has the ability to store electricity charges.Further work on the Leyden jar test allowed scientists to prove the existence of B. Franklin in the nature of charges to the positive and negative directions.
Russian scientists MVLomonosov, G. Richman, Aepinus, Kraft also worked on the problems of electric charges, but basically they studied the properties of static electricity.While the notion of an electric current as a continuous flow of charged particles did not exist.
Science, studying electricity, began to develop more successfully only if there was a possibility of its use on an industrial scale.Experiences of Italian scientists Luigi Galvani and A. Volta made it possible to build the world's first device that could generate an electric current.
Russian scientist from St. Petersburg Academy of Sciences VVPetrov was first created in 1802, the world's largest battery produces an electric current.Seriously discussed the use of electric current in the coverage or for melting metals.From that moment it was possible to talk about electrical engineering, as an independent branch of science and technology.