Education, The science
The invention of electricity: history, application, reception
One of the most important milestones in the history of the planet is the invention of electricity. It is this discovery that helps to develop our civilization to this day. Electricity is one of the most environmentally friendly types of energy. Who owns the discovery of this phenomenon? How is electricity received and used? Is it possible to create a galvanic cell on its own?
History of the invention of electricity briefly
Electricity was discovered as far back as the 7th century BC by the ancient Greek philosopher Thales. He found out that amber wool rubbed with wool can attract smaller objects.
However, large-scale experiments with electricity begin in the era of the revival in Europe. In 1650 the Magdeburg burgomaster von Guericke built an electrostatic installation. In 1729, Stephen Gray was given the experience of transmitting electric power over a distance. In 1747, Benjamin Franklin published an essay where all known facts about electricity were collected and new theories put forward. In 1785 the law of Coulomb was discovered.
The year 1800 was a turning point: the Italian Volt invents the first DC power source. In 1820 the Danish scientist Oersted discovered the electromagnetic interaction of objects. A year later, Amper found that the magnetic field is created by an electric current, but not static charges.
Such great researchers as Gauss, Joule, Lenz, Om have made an invaluable contribution to the invention of electricity. The year 1830 also became important, because Gauss developed the theory of the electrostatic field. The phenomenon of electromagnetic induction and the development of a motor running on a current belongs to Michael Faraday.
At the end of the 19th century, experiments with electricity were conducted by many scientists, including Pierre Curie, Lachinov, Hertz, Thomson, Rutherford. At the beginning of the 20th century a theory of quantum electrodynamics appeared.
Electricity in nature
The discovery and invention of electricity has happened for a very long time. However, earlier it was believed that in nature it simply does not exist. But the American Franklin found out that such a phenomenon, like lightning, is purely electrical in nature. For a long time his point of view was rejected by the scientific community.
Electricity is of great importance in nature. Many scientists believe that due to the lightning discharges, the synthesis of amino acids was realized, as a result of which life on Earth was born. Without the nerve impulses, the functioning of the organism of any animal is impossible. There are varieties of marine organisms that use electricity as a means of defense, attack, orientation in space and the search for food.
Getting electricity
The invention of electricity has had an impact on scientific and technological progress. To generate electricity, power plants have been created for many decades. Electricity is created with the help of energy generators, and then it is transmitted via power lines. The principle of creating a current is to translate mechanical energy into electrical energy. Power plants are divided into the following types:
- Atomic;
- Wind;
- Hydropower;
- Tidal and excellent;
- Solar;
- Thermal.
Applying electricity
The invention of electricity by right is the greatest discovery, because without it, modern life becomes impossible. It is available in almost every home and is used for lighting, information exchange, cooking, heating, and the operation of household appliances. Electricity is also necessary for the movement of trams, trolleybuses, subways, electric trains. The work of a computer, a cell phone is also impossible without electricity.
Curious experience
It turns out that the galvanic cell can be manufactured independently, and this is done quite simply. This method became known in the early 20th century.
First you need to cut a lemon in the middle with a sharp knife. It is extremely undesirable to remove or tear off partitions between the lobules. After this, you need to connect to each lobule, in turn, a small piece of wire, about 2 centimeters in size. Cells should alternate between copper and zinc wires. Then the ends of the protruding wires should be connected in series with a metal wire of smaller diameter. This way you can get the battery. How to check if it works? To do this, you can measure the voltage with a voltmeter.
One of the most important discoveries in the history of mankind was the invention of electricity. The date of discovery is not known exactly. However, experiments were started by the ancient Greek scholar Thales. The active study of electricity began during the Renaissance. Without it, the activity of any living organism is impossible. Today, without this invention, we practically can not imagine our life. People have long learned to receive, transfer and use electricity.
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