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1600 – William Gilbert publishes De Magnete, Magneticisque Corporibus, et de Magno Magnete Tellure ("On the Magnet and Magnetic bodies, and on that Great Magnet the Earth"), Europe's then current standard on electricity and magnetism. He experimented with and noted the different character of electrical and magnetic forces.
The magnetic monopole [222] in the quantum theory of magnetic charge started with a paper by the physicist Paul A.M. Dirac in 1931. [223] The detection of magnetic monopoles is an open problem in experimental physics.
RCA developed for the first apparatus for recording video signals on magnetic tapes. 22 km magnetic tape are needed per hour. By 1956, succeeds the company Ampex through the use of multiple tracks, the tape speed to more practicable 38.1 cm / s lower. The European Broadcasting Union is founded "Euro Vision".
The timeline of historic inventions is a chronological list of particularly significant technological ... The Toroidal chamber with axial magnetic fields (the ...
Magnetic poles (or states of polarization at individual points) attract or repel one another in a manner similar to positive and negative charges and always exist as pairs: every north pole is yoked to a south pole. [8] An electric current inside a wire creates a corresponding circumferential magnetic field outside the wire.
This timeline includes developments in subfields of condensed matter physics such as theoretical crystallography, solid-state physics, soft matter physics, mesoscopic physics, material physics, low-temperature physics, microscopic theories of magnetism in matter and optical properties of matter and metamaterials.
Michael Faraday developed the concept of lines of force to describe electric and magnetic phenomena. [13] In 1831, he writes [13] By magnetic curves, I mean the lines of magnetic forces, however modified by the juxtaposition of poles, which would be depicted by iron filings; or those to ·which a very small magnetic needle would form a tangent."
This is a timeline of states of matter and phase transitions, ... 1895 – Pierre Curie discovers that induced magnetization is proportional to magnetic field ...
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