Kilogram - Revision history

Jmdonev: 1 revision imported

2026-06-04T17:16:59Z

1 revision imported

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Energy>Jmdonev at 22:37, 22 May 2026

2026-05-22T22:37:36Z

← Older revision		Revision as of 22:37, 22 May 2026
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	[[category:units]]		[[category:units]]
	[[Category:Done ~~2021~~-10-29]]		[[Category:Done 2026-06-01]]
	[[Category:Translated to Spanish]]		[[Category:Translated to Spanish]]
	[[es:Kilogramo]]		[[es:Kilogramo]]
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	<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>		<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>

	For a fascinating video on the origin of the kilogram and the impact of the ~~new~~ definition of a kilogram see Veritasium's video below.		For a fascinating video on the origin of the kilogram and the impact of the current definition of a kilogram see Veritasium's video below.
	==Conversions==		==Conversions==
	<html><br /> <iframe src="https://energyeducation.ca/simulations/converter/converter.php?defaultMeasure=Mass&defaultFrom=kilogram&defaultTo=pound" scrolling="no" width="750" height="200"> </iframe><br /> </html>		<html><br /> <iframe src="https://energyeducation.ca/simulations/converter/converter.php?defaultMeasure=Mass&defaultFrom=kilogram&defaultTo=pound" scrolling="no" width="750" height="200"> </iframe><br /> </html>

Jmdonev: 1 revision imported

2021-12-20T20:21:50Z

1 revision imported

← Older revision	Revision as of 20:21, 20 December 2021
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energy>Jmdonev at 19:53, 20 December 2021

2021-12-20T19:53:54Z

← Older revision		Revision as of 19:53, 20 December 2021
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	[[Category:Translated to Spanish]]		[[Category:Translated to Spanish]]
	[[es:Kilogramo]]		[[es:Kilogramo]]
	<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> The prefix "Kilo" is used for both the name and symbol of kilogram and is equal to 1000 or 10<sup>3</sup> [[gram]]s. Originally the gram was going to be the base unit, but due to historical reasons regarding an artifact used to define the kilogram, the kilogram was chosen as the SI base unit for mass. As of 2018, the kilogram (kg) is now defined by taking the fixed numerical value of [[Planck's constant]] ''h'' to be 6.62607015 × 10<sup>−34</sup> kg m<sup>2</sup> s<sup>−1</sup>. This decision was made in order to ensure the long-term stability of the unit of [[mass]].<ref>Bureau International des Poids et Mesures, "''Mise en pratique'' for the definition of the kilogram (2020)," [Online], Available: https://www.bipm.org/en/search?p_p_id=search_portlet&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=%2Fdownload%2Fpublication&p_p_cacheability=cacheLevelPage&_search_portlet_dlFileId=41489972&p_p_lifecycle=1&_search_portlet_javax.portlet.action=search&_search_portlet_formDate=1622783457642&_search_portlet_query=kilogram&_search_portlet_source=BIPM</ref>		<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units in the International System of Units (SI). It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> The prefix "Kilo" is used for both the name and symbol of kilogram and is equal to 1000 or 10<sup>3</sup> [[gram]]s. Originally the gram was going to be the base unit, but due to historical reasons regarding an artifact used to define the kilogram, the kilogram was chosen as the SI base unit for mass. As of 2018, the kilogram (kg) is now defined by taking the fixed numerical value of [[Planck's constant]] ''h'' to be 6.62607015 × 10<sup>−34</sup> kg m<sup>2</sup> s<sup>−1</sup>. This decision was made in order to ensure the long-term stability of the unit of [[mass]].<ref>Bureau International des Poids et Mesures, "''Mise en pratique'' for the definition of the kilogram (2020)," [Online], Available: https://www.bipm.org/en/search?p_p_id=search_portlet&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=%2Fdownload%2Fpublication&p_p_cacheability=cacheLevelPage&_search_portlet_dlFileId=41489972&p_p_lifecycle=1&_search_portlet_javax.portlet.action=search&_search_portlet_formDate=1622783457642&_search_portlet_query=kilogram&_search_portlet_source=BIPM</ref>
	<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>		<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>

Jmdonev: 1 revision imported

2021-10-18T16:14:38Z

1 revision imported

← Older revision	Revision as of 16:14, 18 October 2021
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energy>Jmdonev at 19:46, 15 October 2021

2021-10-15T19:46:11Z

← Older revision		Revision as of 19:46, 15 October 2021
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	[[category:units]]		[[category:units]]
	[[Category:~~Jason edit~~]]		[[Category:Done 2021-10-29]]
	[[Category:Translated to Spanish]]		[[Category:Translated to Spanish]]
	[[es:Kilogramo]]		[[es:Kilogramo]]
	~~'''Dayna, how does this read to you? I had vague thoughts of adding a video, perhaps this one? https://www.youtube.com/watch?v=c_e1wITe_ig - Jason'''~~

	'''Jason, I like that video! It's a bit long but I think that's okay. Some of the links on the page didn't work so I found some other articles from the same site. I also changed up the wording so it may need editing. - Dayna'''


	<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> The prefix "Kilo" is used for both the name and symbol of kilogram and is equal to 1000 or 10<sup>3</sup> [[gram]]s. Originally the gram was going to be the base unit, but due to historical reasons regarding an artifact used to define the kilogram, the kilogram was chosen as the SI base unit for mass. As of 2018, the kilogram (kg) is now defined by taking the fixed numerical value of [[Planck's constant]] ''h'' to be 6.62607015 × 10<sup>−34</sup> kg m<sup>2</sup> s<sup>−1</sup>. This decision was made in order to ensure the long-term stability of the unit of [[mass]].<ref>Bureau International des Poids et Mesures, "''Mise en pratique'' for the definition of the kilogram (2020)," [Online], Available: https://www.bipm.org/en/search?p_p_id=search_portlet&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=%2Fdownload%2Fpublication&p_p_cacheability=cacheLevelPage&_search_portlet_dlFileId=41489972&p_p_lifecycle=1&_search_portlet_javax.portlet.action=search&_search_portlet_formDate=1622783457642&_search_portlet_query=kilogram&_search_portlet_source=BIPM</ref>		<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> The prefix "Kilo" is used for both the name and symbol of kilogram and is equal to 1000 or 10<sup>3</sup> [[gram]]s. Originally the gram was going to be the base unit, but due to historical reasons regarding an artifact used to define the kilogram, the kilogram was chosen as the SI base unit for mass. As of 2018, the kilogram (kg) is now defined by taking the fixed numerical value of [[Planck's constant]] ''h'' to be 6.62607015 × 10<sup>−34</sup> kg m<sup>2</sup> s<sup>−1</sup>. This decision was made in order to ensure the long-term stability of the unit of [[mass]].<ref>Bureau International des Poids et Mesures, "''Mise en pratique'' for the definition of the kilogram (2020)," [Online], Available: https://www.bipm.org/en/search?p_p_id=search_portlet&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=%2Fdownload%2Fpublication&p_p_cacheability=cacheLevelPage&_search_portlet_dlFileId=41489972&p_p_lifecycle=1&_search_portlet_javax.portlet.action=search&_search_portlet_formDate=1622783457642&_search_portlet_query=kilogram&_search_portlet_source=BIPM</ref>
	<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>		<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>

Jmdonev: 1 revision imported

2021-09-27T00:02:48Z

1 revision imported

← Older revision	Revision as of 00:02, 27 September 2021
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energy>Luisa at 22:20, 9 September 2021

2021-09-09T22:20:24Z

← Older revision		Revision as of 22:20, 9 September 2021
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	[[category:units]]		[[category:units]]
	[[Category:~~Done 2018-06-15~~]]		[[Category:Jason edit]]
	~~<translate>~~		[[Category:Translated to Spanish]]
	~~<!--T:1-->~~		[[es:Kilogramo]]
	~~<onlyinclude>A '''kilogram''' is the~~ [[SI]] [[~~units\|unit~~]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> Originally the gram was going to be the base unit, but due to a historical quirk regarding an artifact used to define the kilogram,<ref>Bureau International des Poids et Mesures, '~~'"kilogram": a historical quirk~~'' ~~[Online]~~, ~~Available: http://www.bipm.org/en/measurement-units/history-si/name-kg.html</ref> the kilogram was chosen as the SI base unit for mass. The kilogram is currently the only base unit~~ to ~~rely on~~ a ~~physical artifact for its definition~~, ~~which is more problematic than it sounds. For a fascinating essay on the metrology outlook on~~ this ~~problem please see [http~~://www.~~nist~~.~~gov~~/~~pml/si~~-~~redef/kg_redefinition.cfm NIST~~'~~s website].~~		'''Dayna, how does this read to you? I had vague thoughts of adding a video, perhaps this one? https://www.youtube.com/watch?v=c_e1wITe_ig - Jason'''

	==~~Conversions~~== <~~!--T~~:2-->		'''Jason, I like that video! It's a bit long but I think that's okay. Some of the links on the page didn't work so I found some other articles from the same site. I also changed up the wording so it may need editing. - Dayna'''


			<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> The prefix "Kilo" is used for both the name and symbol of kilogram and is equal to 1000 or 10<sup>3</sup> [[gram]]s. Originally the gram was going to be the base unit, but due to historical reasons regarding an artifact used to define the kilogram, the kilogram was chosen as the SI base unit for mass. As of 2018, the kilogram (kg) is now defined by taking the fixed numerical value of [[Planck's constant]] ''h'' to be 6.62607015 × 10<sup>−34</sup> kg m<sup>2</sup> s<sup>−1</sup>. This decision was made in order to ensure the long-term stability of the unit of [[mass]].<ref>Bureau International des Poids et Mesures, "''Mise en pratique'' for the definition of the kilogram (2020)," [Online], Available: https://www.bipm.org/en/search?p_p_id=search_portlet&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=%2Fdownload%2Fpublication&p_p_cacheability=cacheLevelPage&_search_portlet_dlFileId=41489972&p_p_lifecycle=1&_search_portlet_javax.portlet.action=search&_search_portlet_formDate=1622783457642&_search_portlet_query=kilogram&_search_portlet_source=BIPM</ref>
			<ref>Bureau International des Poids et Mesures, "Appendix 4. Historical notes on the development of the International System of Units and its base units," [Online], Available: https://www.bipm.org/en/publications/si-brochure.</ref>

			For a fascinating video on the origin of the kilogram and the impact of the new definition of a kilogram see Veritasium's video below.
			==Conversions==
	<html><br /> <iframe src="https://energyeducation.ca/simulations/converter/converter.php?defaultMeasure=Mass&defaultFrom=kilogram&defaultTo=pound" scrolling="no" width="750" height="200"> </iframe><br /> </html>		<html><br /> <iframe src="https://energyeducation.ca/simulations/converter/converter.php?defaultMeasure=Mass&defaultFrom=kilogram&defaultTo=pound" scrolling="no" width="750" height="200"> </iframe><br /> </html>

	==~~For~~ Further Reading==		==Video: The kg is dead, long live the kg==
	*[[~~Energy~~]]		<html>
	*[[~~Kinetic energy~~]]		<iframe width="800" height="500" src="https://www.youtube.com/embed/c_e1wITe_ig" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
	*[[~~Energy for transportation by country~~]]		</html>
	*[[~~Energy conversion technology~~]]
			==Further Reading==
			*[[Mass]]
			*[[Weight]]
			*[[Planck's constant]]
			*[[Mass-energy equivalence]]
	*Or explore a [[Special:Random\|random page]]		*Or explore a [[Special:Random\|random page]]
			==References==
	==References== ~~<!--T:3-->~~
	{{reflist}}		{{reflist}}
	~~</translate>~~
	~~<languages />~~


	[[Category:Uploaded]]		[[Category:Uploaded]]

Jmdonev: 1 revision imported

2018-06-25T14:30:35Z

1 revision imported

← Older revision	Revision as of 14:30, 25 June 2018
(No difference)

Jmdonev at 19:45, 24 June 2018

2018-06-24T19:45:11Z

← Older revision		Revision as of 19:45, 24 June 2018
Line 1:		Line 1:
	[[category:units]]		[[category:units]]
	[[Category:Done ~~2015~~-09-05]]		[[Category:Done 2018-06-15]]
			<translate>
			<!--T:1-->
	<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> Originally the gram was going to be the base unit, but due to a historical quirk regarding an artifact used to define the kilogram,<ref>Bureau International des Poids et Mesures, ''"kilogram": a historical quirk'' [Online], Available: http://www.bipm.org/en/measurement-units/history-si/name-kg.html</ref> the kilogram was chosen as the SI base unit for mass. The kilogram is currently the only base unit to rely on a physical artifact for its definition, which is more problematic than it sounds. For a fascinating essay on the metrology outlook on this problem please see [http://www.nist.gov/pml/si-redef/kg_redefinition.cfm NIST's website].		<onlyinclude>A '''kilogram''' is the [[SI]] [[units\|unit]] of [[mass]] and one of the 7 base units. It is the only SI unit with a [[prefixes\|prefix]].</onlyinclude> Originally the gram was going to be the base unit, but due to a historical quirk regarding an artifact used to define the kilogram,<ref>Bureau International des Poids et Mesures, ''"kilogram": a historical quirk'' [Online], Available: http://www.bipm.org/en/measurement-units/history-si/name-kg.html</ref> the kilogram was chosen as the SI base unit for mass. The kilogram is currently the only base unit to rely on a physical artifact for its definition, which is more problematic than it sounds. For a fascinating essay on the metrology outlook on this problem please see [http://www.nist.gov/pml/si-redef/kg_redefinition.cfm NIST's website].

	==Conversions==		==Conversions== <!--T:2-->
	<html><br /> <iframe src="~~http~~://energyeducation.ca/simulations/converter/converter.php?defaultMeasure=Mass&defaultFrom=kilogram&defaultTo=pound" scrolling="no" width="750" height="200"> </iframe><br /> </html>		<html><br /> <iframe src="https://energyeducation.ca/simulations/converter/converter.php?defaultMeasure=Mass&defaultFrom=kilogram&defaultTo=pound" scrolling="no" width="750" height="200"> </iframe><br /> </html>

	==References==		==For Further Reading==
			*[[Energy]]
			*[[Kinetic energy]]
			*[[Energy for transportation by country]]
			*[[Energy conversion technology]]
			*Or explore a [[Special:Random\|random page]]

			==References== <!--T:3-->
	{{reflist}}		{{reflist}}
			</translate>
			<languages />


	[[Category:Uploaded]]		[[Category:Uploaded]]