The multiple-coil magnet was invented by
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Coil — Winding redirects here. For other uses, see Winding (disambiguation). For other uses, see Coil (disambiguation). A coil is a series of loops. A coiled coil is a structure in which the coil itself is in turn also looping. Contents 1… … Wikipedia
Electromagnetic coil — An electromagnetic coil (or simply a coil ) is formed when a conductor (usually a solid copper wire) is wound around a core or form to create an inductor or electromagnet. One loop of wire is usually referred to as a turn , and a coil consists of … Wikipedia
Magnet — This article is about objects and devices that produce magnetic fields. For a description of magnetic materials, see magnetism. For other uses, see Magnet (disambiguation) … Wikipedia
Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor … Wikipedia
Search coil — A search coil is a device for measuring eye movements using coils that are embedded into a tightly fitting contact lens or a rubber ring that adheres to the eye. In animal studies, the search coil may be surgically implanted into the sclera of… … Wikipedia
Joseph Henry — Infobox Scientist birth date = birth date|1797|12|17 birth place = Albany, New York, USA death date = death date and age|1878|5|13|1797|12|17 death place = Washington, D. C., USA nationality = United States field = Physics work institutions =… … Wikipedia
Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… … Wikipedia
Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For … Wikipedia
Woofer — This article is about a loudspeaker driver. For individuals trained in remote first aid, see Wilderness First Responder. Woofer is the term commonly used for a loudspeaker driver designed to produce low frequency sounds, typically from around 40… … Wikipedia
Calutron — A Calutron was a mass spectrometer used for separating the isotopes of uranium developed by Ernest O. Lawrence [ cite web|url=http://www.lbl.gov/Science Articles/Research Review/Magazine/1981/81fepi2.htm |title=Lawrence and His Laborator… … Wikipedia
