Superconductor - Revision history

Jmdonev: 1 revision imported

2020-04-28T15:32:33Z

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energy>Jmdonev at 17:31, 25 February 2020

2020-02-25T17:31:57Z

← Older revision		Revision as of 17:31, 25 February 2020
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	[[Category:Done ~~2015~~-09-05]]		[[Category:Done 2020-02-29]]
	[[File:Meissner effect.png\|thumbnail\|right\|Figure 1. A diagram of the Meissner effect. A phenomenon where magnetic field waves go around a superconductor, if it is cooled below its critical temperature.]]		[[File:Meissner effect.png\|thumbnail\|right\|Figure 1. A diagram of the Meissner effect. A phenomenon where magnetic field waves go around a superconductor, if it is cooled below its critical temperature.<ref>Piotr Jaworski, PioM EN DE PL; POLAND/Poznań / Public domain from https://commons.wikimedia.org/wiki/File:EfektMeisnera.svg accessed February 25th, 2020.</ref>]]
	<onlyinclude>A '''superconductor''' is a material that has absolutely no electrical [[resistance]] (0 [[Ohm\|Ω]]) and interesting interactions with [[magnetic field]]s.</onlyinclude> Because of this, it can transmit [[electricity]] without producing any waste heat. This material must be cooled below the critical [[temperature]], which is usually very cold. For most materials the critical temperature is a few [[Kelvin]] (a few degrees above [[absolute zero]]). Some materials have a critical temperature as high as 125K or so (-148[[Celsius\|°C]], much colder than even cold parts of Canada!). While these materials may have uses in [[energy storage]] (see for example [[superconducting magnetic energy storage]]), it's unlikely that they will be used for transmitting [[electricity]] over long distances on the [[electrical grid]] anytime soon, due to the difficulty of cooling thousands of kilometers of [[electrical transmission\|transmission line]]s.		<onlyinclude>A '''superconductor''' is a material that has absolutely no electrical [[resistance]] (0 [[Ohm\|Ω]]) and interesting interactions with [[magnetic field]]s.</onlyinclude> Because of this, it can transmit [[electricity]] without producing any waste heat. This material must be cooled below the critical [[temperature]], which is usually very cold. For most materials the critical temperature is a few [[Kelvin]] (a few degrees above [[absolute zero]]). Some materials have a critical temperature as high as 125K or so (-148[[Celsius\|°C]], much colder than even cold parts of Canada!). While these materials may have uses in [[energy storage]] (see for example [[superconducting magnetic energy storage]]), it's unlikely that they will be used for transmitting [[electricity]] over long distances on the [[electrical grid]] anytime soon, due to the difficulty of cooling thousands of kilometers of [[electrical transmission\|transmission line]]s.

	Oddly, superconductors above their critical temperatures are often not even [[conductor]]s.		Oddly, superconductors above their critical temperatures are often not even [[conductor]]s.

			Figure 2 shows the difference between how much cable is required for 12,500 [[ampere]]s (an enormous amount of current). As shown in the figure, superconductors are capable of carrying quite a bit more current than normal conductors.

			[[File:CERN-cables-p1030764.jpg\|700px\|center\|thumb\|Figure 2. Both cables are rated for 12,500 amps. The bottom cable is a [[superconductor]].<ref>By Rama - Own work, CC BY-SA 2.0 fr, https://commons.wikimedia.org/w/index.php?curid=601147 accessed May 9th, 2018.</ref>]]

			==For Further Reading==
	For more information on this fascinating subject please see [http://hyperphysics.phy-astr.gsu.edu/hbase/solids/scond.html#c1 hyperphysics], specifically the articles on [http://hyperphysics.phy-astr.gsu.edu/hbase/solids/hitc.html#c1 high temperature superconductors].		For more information on this fascinating subject please see [http://hyperphysics.phy-astr.gsu.edu/hbase/solids/scond.html#c1 hyperphysics], specifically the articles on [http://hyperphysics.phy-astr.gsu.edu/hbase/solids/hitc.html#c1 high temperature superconductors].
			*[[Resistivity]]
			*[[Electrical conductivity]]
			*[[Electric current]]
			* Or explore a [[Special:Random\| random page!]]

			==References==
			{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-09-03T18:23:06Z

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Jmdonev at 00:06, 29 August 2015

2015-08-29T00:06:23Z

← Older revision		Revision as of 00:06, 29 August 2015
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	[[Category:Done 2015-01-15 ]]		[[Category:Done 2015-09-05]]
	[[File:Meissner effect.png\|thumbnail\|right\|A diagram of the Meissner effect. A phenomenon where magnetic field waves go around a superconductor, if it is cooled below its critical temperature.]]		[[File:Meissner effect.png\|thumbnail\|right\|Figure 1. A diagram of the Meissner effect. A phenomenon where magnetic field waves go around a superconductor, if it is cooled below its critical temperature.]]
	<onlyinclude>A superconductor is a material that has absolutely no electrical [[resistance]] (0 [[Ohm\|Ω]]) and interesting interactions with [[magnetic field]]s.</onlyinclude> Because of this, it can transmit [[electricity]] without producing any waste heat. This material must be cooled below the critical [[temperature]], which is usually very cold. For most materials the critical temperature is a few [[Kelvin]] (a few degrees above [[absolute zero]]). Some materials have a critical temperature as high as 125K or so (-148[[Celsius\|°C]], much colder than even cold parts of Canada!). While these materials may have uses in [[energy storage]] (see for example [[superconducting magnetic energy storage]]), it's unlikely that they will be used for transmitting [[electricity]] over long distances on the [[electrical grid]] anytime soon, due to the difficulty of cooling thousands of kilometers of [[transmission line]]s.		<onlyinclude>A '''superconductor''' is a material that has absolutely no electrical [[resistance]] (0 [[Ohm\|Ω]]) and interesting interactions with [[magnetic field]]s.</onlyinclude> Because of this, it can transmit [[electricity]] without producing any waste heat. This material must be cooled below the critical [[temperature]], which is usually very cold. For most materials the critical temperature is a few [[Kelvin]] (a few degrees above [[absolute zero]]). Some materials have a critical temperature as high as 125K or so (-148[[Celsius\|°C]], much colder than even cold parts of Canada!). While these materials may have uses in [[energy storage]] (see for example [[superconducting magnetic energy storage]]), it's unlikely that they will be used for transmitting [[electricity]] over long distances on the [[electrical grid]] anytime soon, due to the difficulty of cooling thousands of kilometers of [[electrical transmission\|transmission line]]s.

	Oddly, superconductors above their critical temperatures are often not even [[conductor]]s.		Oddly, superconductors above their critical temperatures are often not even [[conductor]]s.

J.williams: 1 revision imported

2015-08-26T21:31:41Z

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J.williams at 17:00, 12 August 2015

2015-08-12T17:00:08Z

New page

[[Category:Done 2015-01-15 ]]
[[File:Meissner effect.png|thumbnail|right|A diagram of the Meissner effect. A phenomenon where magnetic field waves go around a superconductor, if it is cooled below its critical temperature.]]
<onlyinclude>A superconductor is a material that has absolutely no electrical [[resistance]] (0 [[Ohm|Ω]]) and interesting interactions with [[magnetic field]]s.</onlyinclude> Because of this, it can transmit [[electricity]] without producing any waste heat. This material must be cooled below the critical [[temperature]], which is usually very cold. For most materials the critical temperature is a few [[Kelvin]] (a few degrees above [[absolute zero]]). Some materials have a critical temperature as high as 125K or so (-148[[Celsius|°C]], much colder than even cold parts of Canada!). While these materials may have uses in [[energy storage]] (see for example [[superconducting magnetic energy storage]]), it's unlikely that they will be used for transmitting [[electricity]] over long distances on the [[electrical grid]] anytime soon, due to the difficulty of cooling thousands of kilometers of [[transmission line]]s.

Oddly, superconductors above their critical temperatures are often not even [[conductor]]s.

For more information on this fascinating subject please see [http://hyperphysics.phy-astr.gsu.edu/hbase/solids/scond.html#c1 hyperphysics], specifically the articles on [http://hyperphysics.phy-astr.gsu.edu/hbase/solids/hitc.html#c1 high temperature superconductors].
[[Category:Uploaded]]