Data integration - Revision history

128.176.12.223: /* Definitions */ inverted negation to be consistent with last sentence: unstable schemata->LAV

2014-11-05T11:07:21Z

Definitions: inverted negation to be consistent with last sentence: unstable schemata->LAV

← Older revision		Revision as of 13:07, 5 November 2014
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	~~The individual who wrote the article~~ is ~~called Jayson Hirano~~ and he completely digs that ~~title~~. ~~Office supervising~~ is ~~exactly where her primary earnings arrives from~~ but she~~'s already applied for an additional 1. Some time ago he selected to live in North Carolina and he~~ doesn't ~~strategy on changing it~~. ~~What me and my~~ family ~~adore is bungee leaping~~ but I'~~ve been taking on new things lately~~.<br><br>Feel free to surf to my ~~webpage :: free [http~~:~~//hknews.classicmall.com.hk/groups/some-simple-tips-for-personal-development-progress/ psychic readers] [http~~:~~//srncomm.com/blog/2014/08/25/relieve-that-stress-find-a-new-hobby/ tarot readings]~~ ([http://~~www.herandkingscounty~~.com/~~content~~/~~information-and-facts-you-must-know-about-hobbies http://www.herandkingscounty.com/content~~/~~information-and-facts-you-must-know-about-hobbies~~])		Andrew Berryhill is what his spouse enjoys to contact him and he completely digs that name. It's not a common thing but what she likes performing is to play domino but she doesn't have the time recently. Her family life in Alaska but her husband desires them to move. I am an invoicing officer and I'll be promoted soon.<br><br>Feel free to surf to my page :: online reader ([http://conniecolin.com/xe/community/24580 get redirected here])

en>Donner60: Reverted 1 edit by 64.138.4.66 (talk) to last revision by Donner60. (TW)

2014-02-25T07:28:42Z

Reverted 1 edit by 64.138.4.66 (talk) to last revision by Donner60. (TW)

← Older revision		Revision as of 09:28, 25 February 2014
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	~~{{Refimprove\|date=December 2009}}~~		The individual who wrote the article is called Jayson Hirano and he completely digs that title. Office supervising is exactly where her primary earnings arrives from but she's already applied for an additional 1. Some time ago he selected to live in North Carolina and he doesn't strategy on changing it. What me and my family adore is bungee leaping but I've been taking on new things lately.<br><br>Feel free to surf to my webpage :: free [http://hknews.classicmall.com.hk/groups/some-simple-tips-for-personal-development-progress/ psychic readers] [http://srncomm.com/blog/2014/08/25/relieve-that-stress-find-a-new-hobby/ tarot readings] ([http://www.herandkingscounty.com/content/information-and-facts-you-must-know-about-hobbies http://www.herandkingscounty.com/content/information-and-facts-you-must-know-about-hobbies])
	~~Because [[energy]] is defined via [[Mechanical work\|work]],~~ the ~~[[SI]] unit for '''energy'''~~ is ~~the same as the unit of work – the [[joule]] (J), named in honor of [[James Prescott Joule]]~~ and ~~his experiments on the [[mechanical equivalent of heat]]~~. ~~In slightly more fundamental terms, 1 joule~~ is ~~equal to 1 [[newton (unit)\|newton]]-[[metre]] and, in terms of [[SI base unit]]~~s

	~~:<math>~~1~~\ \mathrm{J} = 1\ \mathrm{kg} \left( \frac{\mathrm{m}}{\mathrm{s}} \right ) ^ 2 = 1\ \frac{\mathrm{kg} \cdot \mathrm{m}^2}{\mathrm{s}^2}</math>~~

	~~An energy unit that is used~~ in ~~[[atomic physics]], [[particle physics]]~~ and ~~[[high energy physics]] is the [[electronvolt]] (eV)~~. ~~One eV ~~ is ~~equivalent to [[1 E-19 J\|1.60217653×10<sup>−19</sup> J]]~~. ~~In [[spectroscopy]] the unit cm~~<~~sup~~>−1<~~/sup~~> ~~= 0.000123986 eV is used~~ to ~~represent energy since energy is inversely proportional~~ to ~~wavelength from the equation <math> E = h \nu = h c~~/~~\lambda <~~/~~math>~~.

	~~In discussions of energy production and consumption, the units [[barrel of oil equivalent]] and [[ton of oil equivalent]] are often used~~.

	~~When discussing amounts of energy released in [[explosion]]s or [[bolide]] [[impact event]]s, the [[TNT equivalent]] unit is often used. 1 ton of TNT equivalent is equal to 4~~.~~2 × 10<sup>9</sup> joules. Therefore, 1 kt TNT is 4.2 × 10<sup>12<~~/~~sup> joules, and 1 Mt TNT is 4.2 × 10<sup>15<~~/~~sup> joules.~~

	~~Note that [[torque]], the "rotational force" or "angular force" which causes a change in rotational motion is typically expressed in newton~~-~~metres. This is not a~~ simple ~~coincidence: a torque of 1 newton~~-~~metre applied on 1 [[radian]] requires exactly 1 newton~~-~~metre = 1 joule of energy.~~

	~~==Other units of energy==~~
	~~In [[cgs~~]~~] units, one~~ [~~[erg]] is 1 [[gram\|g]] [[centimetre\|cm]]<sup>2<~~/~~sup> [[second\|s]]<sup>−2<~~/~~sup>, equal to 1~~.~~0×10<sup>−7<~~/~~sup> J.~~

	~~===US units===~~
	~~The [[imperial units\|imperial]]~~/~~[[United States customary units\|U.S. units]] for both energy and work include the [[foot~~-~~pound force]] (1.3558 J), the [[British thermal unit]] (Btu) which has various values in the region of 1055 J, and the [[horsepower]]~~-~~hour (2.6845 MJ).~~

	~~===Electricity===~~
	~~The energy unit used for everyday [[electricity]], particularly for utility bills, is the [[kilowatt~~-~~hour]] (kWh), and one kWh is equivalent to 3.6×10<sup>6</sup> J  (3600 kJ or 3.6 MJ). Electricity usage is often given in units of kilowatt~~-~~hours per year (kWh/yr). This is actually~~ a ~~measurement of average [[Electric power\|power]] consumption, i.e., the average rate at which energy is transferred.~~

	~~===Natural gas===~~
	~~Natural gas in the US is sold in [[Therm]]s or 100 cubic feet. One Therm is equal to about 105.5 [[Joule\|megajoules]]. In the rest of the world, natural gas is sold in [[Joule\|gigajoules]].~~

	~~===Food industry===~~
	The [[calorie]] equals the amount of [[thermal energy]] necessary to raise the [[temperature]] of one [[gram]] of [[water]] by 1 [[Celsius]] degree, at a [[pressure]] of 1 [[atmospheric pressure\|atm]]. For thermochemistry a calorie of 4.184 J is used, but other calories have also been defined, such as the International Steam Table calorie of 4.1868 J. [[Food energy]] is measured in large calories or kilocalories, often simply written capitalized as "Calories" (= 10<sup>3</~~sup> calories).~~

	~~===Atom physics and chemistry===~~
	~~In physics and chemistry, it is still common to measure energy on the atomic scale in the non-SI, but convenient, units [[electronvolt]]s (eV). The [[Hartree]~~] (~~the~~ [~~[atomic unit]] of energy) is commonly used in calculations. Historically [[Rydberg]] units have been used.~~

	~~===Spectroscopy===~~
	In [[spectroscopy]] and related fields it is common to measure energy levels in units of [[Wavenumber\|reciprocal centimetres]]. These units (cm<sup>−1</sup>) are strictly speaking not energy units but units proportional to energies, with <math>\ hc\sim 2\cdot 10^{-23}\ J\ cm</math> being the proportionality constant.<ref name=nist_recip_cm>{{cite web\|url=http://~~cccbdb~~.~~nist~~.~~gov~~/~~wavenumber.asp \|title=CCCBDB What's a cm~~-~~1? \|publisher=Cccbdb.nist.gov \|date= \|accessdate=2013~~-11-~~13}}</ref>~~

	~~===Explosions===~~
	A gram of [[trinitrotoluene\|TNT]] releases 980–1100 [[calorie]]s upon explosion. To define the '''tonne of TNT''', this was arbitrarily standardized by letting 1000 thermochemical calories = 1 gram TNT = 4184 [[Joule\|J]] (exactly).<ref>[http://~~physics~~.~~nist~~.~~gov~~/~~Pubs~~/~~SP811/appenB8.html NIST Guide for the Use of the International System of Units (SI): Appendix B8—Factors for Units Listed Alphabetically]</ref>~~

	~~== See also ==~~
	~~{{Portal\|Energy}}~~
	* [[Energy consumption]]
	* [[Conversion of units of temperature]]
	* [[Conversion of units#Energy, work, or amount of heat]]
	* [[Orders of magnitude (energy)]]

	~~== References==~~
	~~{{reflist}}~~

	~~{{Footer energy}}~~

	~~[[Category:Units of energy\| ]]~~
	~~[[Category:Conversion of units of measurement]]~~

193.48.71.237: /* See also */

2014-01-13T13:58:55Z

See also

← Older revision		Revision as of 15:58, 13 January 2014
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	~~The title~~ of the ~~author~~ is ~~Figures but it'~~s ~~not~~ the ~~most masucline name out there~~. ~~For~~ a ~~while I've been~~ in ~~South Dakota and my parents reside close by~~. He is ~~truly fond~~ of ~~performing ceramics but he~~ is ~~having difficulties~~ to ~~discover time~~ for it. He used to ~~be unemployed but now he~~ is a ~~meter reader~~.<br><br>~~Here~~ is ~~my weblog~~ - ~~std testing at home~~; [http://~~wixothek~~.~~com~~/~~user~~/~~MBuckmast similar resource site~~],		{{Refimprove\|date=December 2009}}
			Because [[energy]] is defined via [[Mechanical work\|work]], the [[SI]] unit for '''energy''' is the same as the unit of work – the [[joule]] (J), named in honor of [[James Prescott Joule]] and his experiments on the [[mechanical equivalent of heat]]. In slightly more fundamental terms, 1 joule is equal to 1 [[newton (unit)\|newton]]-[[metre]] and, in terms of [[SI base unit]]s

			:<math>1\ \mathrm{J} = 1\ \mathrm{kg} \left( \frac{\mathrm{m}}{\mathrm{s}} \right ) ^ 2 = 1\ \frac{\mathrm{kg} \cdot \mathrm{m}^2}{\mathrm{s}^2}</math>

			An energy unit that is used in [[atomic physics]], [[particle physics]] and [[high energy physics]] is the [[electronvolt]] (eV). One eV  is equivalent to [[1 E-19 J\|1.60217653×10<sup>−19</sup> J]]. In [[spectroscopy]] the unit cm<sup>−1</sup> = 0.000123986 eV is used to represent energy since energy is inversely proportional to wavelength from the equation <math> E = h \nu = h c/\lambda </math>.

			In discussions of energy production and consumption, the units [[barrel of oil equivalent]] and [[ton of oil equivalent]] are often used.

			When discussing amounts of energy released in [[explosion]]s or [[bolide]] [[impact event]]s, the [[TNT equivalent]] unit is often used. 1 ton of TNT equivalent is equal to 4.2 × 10<sup>9</sup> joules. Therefore, 1 kt TNT is 4.2 × 10<sup>12</sup> joules, and 1 Mt TNT is 4.2 × 10<sup>15</sup> joules.

			Note that [[torque]], the "rotational force" or "angular force" which causes a change in rotational motion is typically expressed in newton-metres. This is not a simple coincidence: a torque of 1 newton-metre applied on 1 [[radian]] requires exactly 1 newton-metre = 1 joule of energy.

			==Other units of energy==
			In [[cgs]] units, one [[erg]] is 1 [[gram\|g]] [[centimetre\|cm]]<sup>2</sup> [[second\|s]]<sup>−2</sup>, equal to 1.0×10<sup>−7</sup> J.

			===US units===
			The [[imperial units\|imperial]]/[[United States customary units\|U.S. units]] for both energy and work include the [[foot-pound force]] (1.3558 J), the [[British thermal unit]] (Btu) which has various values in the region of 1055 J, and the [[horsepower]]-hour (2.6845 MJ).

			===Electricity===
			The energy unit used for everyday [[electricity]], particularly for utility bills, is the [[kilowatt-hour]] (kWh), and one kWh is equivalent to 3.6×10<sup>6</sup> J  (3600 kJ or 3.6 MJ). Electricity usage is often given in units of kilowatt-hours per year (kWh/yr). This is actually a measurement of average [[Electric power\|power]] consumption, i.e., the average rate at which energy is transferred.

			===Natural gas===
			Natural gas in the US is sold in [[Therm]]s or 100 cubic feet. One Therm is equal to about 105.5 [[Joule\|megajoules]]. In the rest of the world, natural gas is sold in [[Joule\|gigajoules]].

			===Food industry===
			The [[calorie]] equals the amount of [[thermal energy]] necessary to raise the [[temperature]] of one [[gram]] of [[water]] by 1 [[Celsius]] degree, at a [[pressure]] of 1 [[atmospheric pressure\|atm]]. For thermochemistry a calorie of 4.184 J is used, but other calories have also been defined, such as the International Steam Table calorie of 4.1868 J. [[Food energy]] is measured in large calories or kilocalories, often simply written capitalized as "Calories" (= 10<sup>3</sup> calories).

			===Atom physics and chemistry===
			In physics and chemistry, it is still common to measure energy on the atomic scale in the non-SI, but convenient, units [[electronvolt]]s (eV). The [[Hartree]] (the [[atomic unit]] of energy) is commonly used in calculations. Historically [[Rydberg]] units have been used.

			===Spectroscopy===
			In [[spectroscopy]] and related fields it is common to measure energy levels in units of [[Wavenumber\|reciprocal centimetres]]. These units (cm<sup>−1</sup>) are strictly speaking not energy units but units proportional to energies, with <math>\ hc\sim 2\cdot 10^{-23}\ J\ cm</math> being the proportionality constant.<ref name=nist_recip_cm>{{cite web\|url=http://cccbdb.nist.gov/wavenumber.asp \|title=CCCBDB What's a cm-1? \|publisher=Cccbdb.nist.gov \|date= \|accessdate=2013-11-13}}</ref>

			===Explosions===
			A gram of [[trinitrotoluene\|TNT]] releases 980–1100 [[calorie]]s upon explosion. To define the '''tonne of TNT''', this was arbitrarily standardized by letting 1000 thermochemical calories = 1 gram TNT = 4184 [[Joule\|J]] (exactly).<ref>[http://physics.nist.gov/Pubs/SP811/appenB8.html NIST Guide for the Use of the International System of Units (SI): Appendix B8—Factors for Units Listed Alphabetically]</ref>

			== See also ==
			{{Portal\|Energy}}
			* [[Energy consumption]]
			* [[Conversion of units of temperature]]
			* [[Conversion of units#Energy, work, or amount of heat]]
			* [[Orders of magnitude (energy)]]

			== References==
			{{reflist}}

			{{Footer energy}}

			[[Category:Units of energy\| ]]
			[[Category:Conversion of units of measurement]]

109.76.89.193: /* History */

2012-06-25T18:22:33Z

History

New page

The title of the author is Figures but it's not the most masucline name out there. For a while I've been in South Dakota and my parents reside close by. He is truly fond of performing ceramics but he is having difficulties to discover time for it. He used to be unemployed but now he is a meter reader.<br><br>Here is my weblog - std testing at home; [http://wixothek.com/user/MBuckmast similar resource site],