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The magnetic properties of glass-coated wires also differ greatly from the properties of amorphous wires and cold-drawn wires due to the difference of the internal stresses that are occurring in the wire. When choosing a metal for the wire Fe-rich compositions of metals typically hold an advantage over Co-rich compositions since Co is more ...
Typically, lightning discharges 30,000 amperes at up to 100 million volts, and emits light, radio waves, and X-rays. [17] Plasma temperatures in lightning might approach 30,000 kelvin (29,727 °C) (53,540 °F), and electron densities may exceed 10 24 m −3. Plasmas are very good conductors and electric potentials play an important role.
An early example of a material similar to monomolecular wire deliberately used as a weapon and cutting tool is "borazon-tungsten filament" in G. Randall Garrett's "Thin Edge". (Analog, Dec 1963) [ 4 ] The main character uses a strand from an asteroid towing-cable to cut jail bars and to booby-trap the door of his room.
Magnet wire [1] or enameled wire is a copper or aluminium wire coated with a very thin layer of insulation. It is used in the construction of transformers , inductors , motors , generators , speakers , headphones , hard disk head actuators , electromagnets , electric guitar pickups, and other applications that require tight coils of insulated wire.
Yttrium barium copper oxide (YBCO) is a family of crystalline chemical compounds that display high-temperature superconductivity; it includes the first material ever discovered to become superconducting above the boiling point of liquid nitrogen [77 K (−196.2 °C; −321.1 °F)] at about 93 K (−180.2 °C; −292.3 °F).
Often the tubes are heated to react the mix of powders. Once reacted the tubes are sometimes flattened to form a tape-like conductor. The resulting wire is not as flexible as conventional metal wire, but is sufficient for many applications. There are in situ and ex situ variants of the process, as well a 'double core' method that combines both ...
The conductor consists of seven strands of steel (centre, high tensile strength), surrounded by four outer layers of aluminium (high conductivity). Sample diameter 40 mm. A wire is a flexible, round bar of metal. Wires are commonly formed by drawing the metal through a hole in a die or draw plate.
Concertina wire or Dannert wire [1] is a type of barbed wire or razor wire that is formed in large coils which can be expanded like a concertina. In conjunction with plain barbed wire (and/or razor wire/tape ) and steel pickets , it is most often used to form military-style wire obstacles .