Honored the day of birth Hans Christian Ørsted

Hans Christian Ørsted (14 Agustus1777 in Rudkøbing - 9 Maret1851 in Copenhagen) was a Danish physicist and chemistry, who was affected by Immanuel Kant thinking. In 1820 he found relations between electricity and magnetisme in the very simple experiment. He showed that the wire that was passed through the electric current could refuse the needle of the Compass magnet. Ørsted did not offer the explanation that was satisfactory for this phenomenon. He then did not try to produce this phenomenon in the mathematical framework.

Ørsted not the first person that found that electricity and that magnetisme connected. He was eighteen years beforehand preceded by Gian Domenico Romagnosi, an intelligent the Italian law. The note was about the discovery Romagnosi published in 1802 in the Italian newspaper, but not teperhatikan by the scientific community. Ørsted in 1825 gave the important contribution for chemistry by producing aluminum for the first time. The oersted unit magnetisme was named according to his name.

Piece preparing for an eventide lecture on 21 April 1820, Ørsted built up an experiment which furnished manifest that startled him. As he was setting up his materials, he observed a grasp needle obviated from magnetic north when the electric current from the battery he was using was switched on and off. This deflection convinced him that magnetic fields radiate from all sides of a wire carrying an electric current, just as light and high temperature do, and that it confirmed a direct relationship 'tween electricity and magnetics. The first someone to observe this phenomenon was actually Gian Domenico Romagnosi in 1802.[2] Romagnosi's account of an electrostatic charge from a voltaic pile deflecting a magnetic needle, released in an Italian newspaper, personified largely overtopped by the contemporary scientific community.

At the time of discovery, Ørsted did not suggest any satisfactory explanation of the phenomenon, nor did he try to represent the phenomenon in a mathematical framework. Three months subsequently he began many intensive probes. Soon thereafter he published hullos findings, proving that an galvanising latest produces a magnetic field as it flows through a wire.

His findings resulted in intensive research throughout the scientific community in electrodynamics. The findings influenced French physicist André-Marie Ampère's developments of a single mathematical formula to represent the charismatic personnels between current-carrying music director*. Ørsted's discovery besides represented a major step toward a unified concept of energy.