Ersteds biography briefly
Proceedings on electricity, acoustics, molecular physics. Opened the magnetic effect of electric current. Already at twelve years, Hans was forced to stand behind the paternal pharmacy stand. He decides to enter the University of Copenhagen and is taken for everything - medicine, physics, astronomy, philosophy, poetry. Hans Christian Ersted photography Gold Medal of the University of the Year was awarded to him for the essays "Borders of Poetry and Prose." His next work concerned the properties of alkalis, and the dissertation, for which he received the title of Doctor of Philosophy, was dedicated to medicine.
Hans is traveling towards the university for an internship in France, Germany, Holland. In the year, Ersted becomes a professor of Copenhagen University. In the year, in France, his work "study the identity of chemical and electric forces." In it, he first expresses the idea of the connection of electricity and magnetism. His considerations were simple: electricity gives rise to light - spark, sound - crackle, finally, it can produce heat - wire that closes the clamps of the current source, heats up.
The lecture was accompanied by demonstrations. On the laboratory table were a current source, a wire closing its clamps, and a compass. At the time, when Ersted closed the circuit, the compass's arrow shuddered and turned. When the chain is opened, the arrow returned back. This was the first experimental confirmation of the connection of electricity and magnetism.
It must be said that the deviation of the compass needle in lecture experience was very small. In July, Ersted repeated the experiment using more powerful batteries of current sources. Now the effect has become much stronger. The force acting between the magnet and the wire was directed not by the line connecting them, but perpendicular to it. The magnetic arrow never pointed to the wire, but has always been directed by tangent to the circles, this wire with girdle.
The magnetic power lines surround the conductor with current, or the electric current is a whirlwind of the magnetic field. This is the content of the first basic law of electrodynamics, and this is the essence of the discovery of the scientist. Memoire Ersted was published on July 21. A few days later, the memoir appeared in Geneva, where at that time he was a visit to Arago.
The first acquaintance with Ersted's experience proved to him that the unraveling of the task was found that he and many others fought. At the first meeting of the Academy, at which Arago was present immediately upon his return, on September 4, he makes an oral message about Ersted's experiments. The records made in the Academic Journal with the lazy hand of the protocolist indicate that the academics asked Arago already at the next meeting, September 22, to show everyone present the experience of Ersted, as they say, "in full size." After the opening of honors, they fell on Ersteda.
He was elected a member of many authoritative scientific societies. In the year, Ersted was one of the first to express the idea that light is electromagnetic phenomena. In years, regardless of J. Fourier, he overcepted the thermoelectric effect and built the first thermo -element. Ersted experimentally studied the compressibility and elasticity of liquids and gases, invented a piezometer.
The scientist conducted research on acoustics, in particular, he tried to detect the occurrence of electrical phenomena due to air. The best days.