Template:Selected anniversaries/February 1 - Revision history

Admin at 21:13, 4 February 2026

2026-02-04T21:13:00Z

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	\|\|2000: Samut Prakan radiation accident: the part of the radiation therapy unit containing the radiation source was acquired by two scrap collectors, who claimed to have bought it from some strangers as scrap metal for resale. They took it home, planning to dismantle it later. On 1 February, the two, together with another two associates, attempted to dismantle the metal part (a 97-kilogram, 42-by-20-centimetre lead cylinder held in a stainless steel casing), which was the unit's source drawer. Using a hammer and chisel, they only managed to crack the welded seam. Two of the men then took the metal piece, along with other scrap metal, to a scrapyard on Soi Wat Mahawong in Phra Pradaeng District, Samut Prakan Province. There they asked a worker at the scrapyard to cut open the cylinder using an oxyacetylene torch. As the cylinder was cut open, two smaller cylindrical metal pieces, which had held the source capsule, fell out. The worker retrieved the two pieces and kept them in the scrapyard, but was unaware of the source capsule itself. The lead cylinder was returned to the scrap collectors for them to complete the disassembly. https://en.wikipedia.org/wiki/Samut_Prakan_radiation_accident Pic.		\|\|2000: Samut Prakan radiation accident: the part of the radiation therapy unit containing the radiation source was acquired by two scrap collectors, who claimed to have bought it from some strangers as scrap metal for resale. They took it home, planning to dismantle it later. On 1 February, the two, together with another two associates, attempted to dismantle the metal part (a 97-kilogram, 42-by-20-centimetre lead cylinder held in a stainless steel casing), which was the unit's source drawer. Using a hammer and chisel, they only managed to crack the welded seam. Two of the men then took the metal piece, along with other scrap metal, to a scrapyard on Soi Wat Mahawong in Phra Pradaeng District, Samut Prakan Province. There they asked a worker at the scrapyard to cut open the cylinder using an oxyacetylene torch. As the cylinder was cut open, two smaller cylindrical metal pieces, which had held the source capsule, fell out. The worker retrieved the two pieces and kept them in the scrapyard, but was unaware of the source capsule itself. The lead cylinder was returned to the scrap collectors for them to complete the disassembly. https://en.wikipedia.org/wiki/Samut_Prakan_radiation_accident Pic.

			</gallery>

	~~</gallery>~~		{{Categories: February 1}}

Admin at 13:12, 28 January 2022

2022-01-28T13:12:41Z

← Older revision		Revision as of 07:12, 28 January 2022
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	\|\|1986: Ida Rhodes dies ... mathematician, pioneer in computer programming. Pic.		\|\|1986: Ida Rhodes dies ... mathematician, pioneer in computer programming. Pic.

			File:Small.jpg\|link=Small\|1988: Premiere of '''''[[Small]]''''', a 1988 American fantasy comedy film about Josh Baskin (Tom Hanks), an film star who makes a wish to be "a kid again" and is then reverted to childhood overnight.

	\|\|1992: The Chief Judicial Magistrate of Bhopal court declares Warren Anderson, ex-CEO of Union Carbide, a fugitive under Indian law for failing to appear in the Bhopal disaster case.		\|\|1992: The Chief Judicial Magistrate of Bhopal court declares Warren Anderson, ex-CEO of Union Carbide, a fugitive under Indian law for failing to appear in the Bhopal disaster case.

Admin at 18:11, 21 January 2022

2022-01-21T18:11:32Z

← Older revision		Revision as of 12:11, 21 January 2022
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	\|\|1940: George de Bothezat dies ... engineer, businessman, and pioneer of helicopter flight. Pic.		\|\|1940: George de Bothezat dies ... engineer, businessman, and pioneer of helicopter flight. Pic.

	File:Vandal Savage Field Report Peenemunde.jpg\|link=Field Report Number One (Peenemunde)\|1944: Pultizer Prize awarded to ''[[Field Report Number One (Peenemunde)\|Field Report Number One]]'' (Peenemunde edition).

	\|\|1952: Roger Yonchien Tsien born ... biochemist and academic. He was awarded the 2008 Nobel Prize in Chemistry for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Pic.		\|\|1952: Roger Yonchien Tsien born ... biochemist and academic. He was awarded the 2008 Nobel Prize in Chemistry for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Pic.

Admin at 01:45, 20 January 2022

2022-01-20T01:45:15Z

Admin at 01:42, 20 January 2022

2022-01-20T01:42:36Z

← Older revision		Revision as of 19:42, 19 January 2022
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	File:Werner Heisenberg.jpg\|link=Werner Heisenberg (nonfiction)\|1976: Physicist and academic [[Werner Heisenberg (nonfiction)\|Werner Heisenberg]] dies. He introduced the [[Uncertainty principle (nonfiction)\|uncertainty principle]] -- in quantum mechanics, any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of physical properties of a particle can be known.		File:Werner Heisenberg.jpg\|link=Werner Heisenberg (nonfiction)\|1976: Physicist and academic [[Werner Heisenberg (nonfiction)\|Werner Heisenberg]] dies. He introduced the [[Uncertainty principle (nonfiction)\|uncertainty principle]] -- in quantum mechanics, any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of physical properties of a particle can be known.

	File:Bertram Kostant.jpg\|link=Bertram Kostant (nonfiction)\|1976: Mathematician [[Bertram Kostant (nonfiction)\|Bertram Kostant]] uses geometric quantization to detect and record the electroquantum afterlife of [[Werner Heisenberg (nonfiction)\|Werner Heisenberg]].

	\|\|1981: Donald Wills Douglas, Sr. dies ... engineer and businessman, founded the Douglas Aircraft Company. Pic.		\|\|1981: Donald Wills Douglas, Sr. dies ... engineer and businessman, founded the Douglas Aircraft Company. Pic.
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	\|\|2000: Samut Prakan radiation accident: the part of the radiation therapy unit containing the radiation source was acquired by two scrap collectors, who claimed to have bought it from some strangers as scrap metal for resale. They took it home, planning to dismantle it later. On 1 February, the two, together with another two associates, attempted to dismantle the metal part (a 97-kilogram, 42-by-20-centimetre lead cylinder held in a stainless steel casing), which was the unit's source drawer. Using a hammer and chisel, they only managed to crack the welded seam. Two of the men then took the metal piece, along with other scrap metal, to a scrapyard on Soi Wat Mahawong in Phra Pradaeng District, Samut Prakan Province. There they asked a worker at the scrapyard to cut open the cylinder using an oxyacetylene torch. As the cylinder was cut open, two smaller cylindrical metal pieces, which had held the source capsule, fell out. The worker retrieved the two pieces and kept them in the scrapyard, but was unaware of the source capsule itself. The lead cylinder was returned to the scrap collectors for them to complete the disassembly. https://en.wikipedia.org/wiki/Samut_Prakan_radiation_accident Pic.		\|\|2000: Samut Prakan radiation accident: the part of the radiation therapy unit containing the radiation source was acquired by two scrap collectors, who claimed to have bought it from some strangers as scrap metal for resale. They took it home, planning to dismantle it later. On 1 February, the two, together with another two associates, attempted to dismantle the metal part (a 97-kilogram, 42-by-20-centimetre lead cylinder held in a stainless steel casing), which was the unit's source drawer. Using a hammer and chisel, they only managed to crack the welded seam. Two of the men then took the metal piece, along with other scrap metal, to a scrapyard on Soi Wat Mahawong in Phra Pradaeng District, Samut Prakan Province. There they asked a worker at the scrapyard to cut open the cylinder using an oxyacetylene torch. As the cylinder was cut open, two smaller cylindrical metal pieces, which had held the source capsule, fell out. The worker retrieved the two pieces and kept them in the scrapyard, but was unaware of the source capsule itself. The lead cylinder was returned to the scrap collectors for them to complete the disassembly. https://en.wikipedia.org/wiki/Samut_Prakan_radiation_accident Pic.

	File:Blue Green Spiral.jpg\|link=Blue Green Spiral (nonfiction)\|2017: Chromatographic analysis of ''[[Blue Green Spiral (nonfiction)\|Blue Green Spiral]]'' reveals previously unknown [[Color (nonfiction)\|color]] "midway between [[Blue (nonfiction)\|blue]] and [[Green (nonfiction)\|green]]."

	</gallery>		</gallery>

Admin at 12:54, 9 January 2020

2020-01-09T12:54:46Z

← Older revision		Revision as of 06:54, 9 January 2020
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	\|\|1916: George W. Mackey born ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.		\|\|1916: George W. Mackey born ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.

			\|\|1923: Computer scientist Jerre Noe born. In the 1950s, he led the technical team for the ERMA project, the Bank of America's first venture into computerized banking. Pic search: https://www.google.com/search?q=Jerre+Noe

	\|link=Sam Edwards (nonfiction)\|1928: Physicist and academic [[Sam Edwards (nonfiction)\|Sam Edwards]] born. Pic.		\|link=Sam Edwards (nonfiction)\|1928: Physicist and academic [[Sam Edwards (nonfiction)\|Sam Edwards]] born. Pic.

Admin at 12:22, 13 August 2019

2019-08-13T12:22:43Z

← Older revision		Revision as of 06:22, 13 August 2019
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	\|\|1902: Jovan Karamata born ... mathematician. He is remembered for contributions to analysis, in particular, the Tauberian theory and the theory of slowly varying functions. Pic.		\|\|1902: Jovan Karamata born ... mathematician. He is remembered for contributions to analysis, in particular, the Tauberian theory and the theory of slowly varying functions. Pic.

	File:George Gabriel Stokes.jpg\|link=Sir George Stokes, 1st Baronet (nonfiction)\|1903: Physicist and mathematician [[Sir George Stokes, 1st Baronet (nonfiction)\|Sir George Stokes, 1st Baronet]] dies. He made ~~seminal~~ contributions to fluid dynamics (including the Navier–Stokes equations) and to physical optics.		File:George Gabriel Stokes.jpg\|link=Sir George Stokes, 1st Baronet (nonfiction)\|1903: Physicist and mathematician [[Sir George Stokes, 1st Baronet (nonfiction)\|Sir George Stokes, 1st Baronet]] dies. He made pioneering contributions to fluid dynamics (including the Navier–Stokes equations) and to physical optics.

	\|\|1905: Emilio G. Segrè born ... physicist and academic, Nobel Prize laureate. Pic.		\|\|1905: Emilio G. Segrè born ... physicist and academic, Nobel Prize laureate. Pic.

Admin at 13:54, 11 June 2019

2019-06-11T13:54:40Z

← Older revision		Revision as of 07:54, 11 June 2019
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	\|\|1952: Roger Yonchien Tsien born ... biochemist and academic. He was awarded the 2008 Nobel Prize in Chemistry for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Pic.		\|\|1952: Roger Yonchien Tsien born ... biochemist and academic. He was awarded the 2008 Nobel Prize in Chemistry for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Pic.

			\|\|1954: Edwin Howard Armstrong dies ... engineer, invented FM radio and the superheterodyne receiver system. Pic.

	\|\|1958: Clinton Davisson dies ... physicist and academic, Nobel Prize laureate ... discovery of electron diffraction in the famous Davisson-Germer experiment. Pic.		\|\|1958: Clinton Davisson dies ... physicist and academic, Nobel Prize laureate ... discovery of electron diffraction in the famous Davisson-Germer experiment. Pic.

Admin at 14:00, 14 May 2019

2019-05-14T14:00:19Z

← Older revision		Revision as of 08:00, 14 May 2019
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	\|\|1981: Donald Wills Douglas, Sr. dies ... engineer and businessman, founded the Douglas Aircraft Company. Pic.		\|\|1981: Donald Wills Douglas, Sr. dies ... engineer and businessman, founded the Douglas Aircraft Company. Pic.

			\|\|1986: Ida Rhodes dies ... mathematician, pioneer in computer programming. Pic.

	\|\|1992: The Chief Judicial Magistrate of Bhopal court declares Warren Anderson, ex-CEO of Union Carbide, a fugitive under Indian law for failing to appear in the Bhopal disaster case.		\|\|1992: The Chief Judicial Magistrate of Bhopal court declares Warren Anderson, ex-CEO of Union Carbide, a fugitive under Indian law for failing to appear in the Bhopal disaster case.

Admin at 13:35, 1 April 2019

2019-04-01T13:35:29Z

← Older revision		Revision as of 07:35, 1 April 2019
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	\|\|1561: Mathematician and academic Henry Briggs born ... notable for changing the original logarithms invented by John Napier into common (base 10) logarithms, which are sometimes known as Briggsian logarithms in his honor. DOB unknown. Pic search (none?): https://www.google.com/search?q=henry+briggs+mathematician		\|\|1561: Mathematician and academic Henry Briggs born ... notable for changing the original logarithms invented by John Napier into common (base 10) logarithms, which are sometimes known as Briggsian logarithms in his honor. DOB unknown. Pic search (none?): https://www.google.com/search?q=henry+briggs+mathematician

			\|\|1659: Jacob Roggeveen born ... explorer who was sent to find Terra Australis, but instead came across Easter Island (called Easter Island because he landed there on Easter Day). Jacob Roggeveen also encountered Bora Bora and Maupiti of the Society Islands and Samoa. Pic search yes: https://www.google.com/search?q=jacob+roggeveen

	\|\|1698: Mathematician Colin Maclaurin born. He will make important contributions to geometry and algebra. The Maclaurin series, a special case of the Taylor series, will be named after him. Pic.		\|\|1698: Mathematician Colin Maclaurin born. He will make important contributions to geometry and algebra. The Maclaurin series, a special case of the Taylor series, will be named after him. Pic.

← Older revision		Revision as of 07:12, 28 January 2022
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	\|\|1986: Ida Rhodes dies ... mathematician, pioneer in computer programming. Pic.		\|\|1986: Ida Rhodes dies ... mathematician, pioneer in computer programming. Pic.

			File:Small.jpg\|link=Small\|1988: Premiere of '''''[[Small]]''''', a 1988 American fantasy comedy film about Josh Baskin (Tom Hanks), an film star who makes a wish to be "a kid again" and is then reverted to childhood overnight.

	\|\|1992: The Chief Judicial Magistrate of Bhopal court declares Warren Anderson, ex-CEO of Union Carbide, a fugitive under Indian law for failing to appear in the Bhopal disaster case.		\|\|1992: The Chief Judicial Magistrate of Bhopal court declares Warren Anderson, ex-CEO of Union Carbide, a fugitive under Indian law for failing to appear in the Bhopal disaster case.

← Older revision		Revision as of 12:11, 21 January 2022
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	\|\|1940: George de Bothezat dies ... engineer, businessman, and pioneer of helicopter flight. Pic.		\|\|1940: George de Bothezat dies ... engineer, businessman, and pioneer of helicopter flight. Pic.

	File:Vandal Savage Field Report Peenemunde.jpg\|link=Field Report Number One (Peenemunde)\|1944: Pultizer Prize awarded to ''[[Field Report Number One (Peenemunde)\|Field Report Number One]]'' (Peenemunde edition).

	\|\|1952: Roger Yonchien Tsien born ... biochemist and academic. He was awarded the 2008 Nobel Prize in Chemistry for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Pic.		\|\|1952: Roger Yonchien Tsien born ... biochemist and academic. He was awarded the 2008 Nobel Prize in Chemistry for his discovery and development of the green fluorescent protein, in collaboration with organic chemist Osamu Shimomura and neurobiologist Martin Chalfie. Pic.

← Older revision		Revision as of 06:54, 9 January 2020
Line 41:		Line 41:

	\|\|1916: George W. Mackey born ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.		\|\|1916: George W. Mackey born ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.

			\|\|1923: Computer scientist Jerre Noe born. In the 1950s, he led the technical team for the ERMA project, the Bank of America's first venture into computerized banking. Pic search: https://www.google.com/search?q=Jerre+Noe

	\|link=Sam Edwards (nonfiction)\|1928: Physicist and academic [[Sam Edwards (nonfiction)\|Sam Edwards]] born. Pic.		\|link=Sam Edwards (nonfiction)\|1928: Physicist and academic [[Sam Edwards (nonfiction)\|Sam Edwards]] born. Pic.

← Older revision		Revision as of 06:22, 13 August 2019
Line 26:		Line 26:
	\|\|1902: Jovan Karamata born ... mathematician. He is remembered for contributions to analysis, in particular, the Tauberian theory and the theory of slowly varying functions. Pic.		\|\|1902: Jovan Karamata born ... mathematician. He is remembered for contributions to analysis, in particular, the Tauberian theory and the theory of slowly varying functions. Pic.

	File:George Gabriel Stokes.jpg\|link=Sir George Stokes, 1st Baronet (nonfiction)\|1903: Physicist and mathematician [[Sir George Stokes, 1st Baronet (nonfiction)\|Sir George Stokes, 1st Baronet]] dies. He made ~~seminal~~ contributions to fluid dynamics (including the Navier–Stokes equations) and to physical optics.		File:George Gabriel Stokes.jpg\|link=Sir George Stokes, 1st Baronet (nonfiction)\|1903: Physicist and mathematician [[Sir George Stokes, 1st Baronet (nonfiction)\|Sir George Stokes, 1st Baronet]] dies. He made pioneering contributions to fluid dynamics (including the Navier–Stokes equations) and to physical optics.

	\|\|1905: Emilio G. Segrè born ... physicist and academic, Nobel Prize laureate. Pic.		\|\|1905: Emilio G. Segrè born ... physicist and academic, Nobel Prize laureate. Pic.

← Older revision		Revision as of 19:45, 19 January 2022
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	File:Johannes Trithemius.jpg\|link=Johannes Trithemius (nonfiction)\|1462: Polymath [[Johannes Trithemius (nonfiction)\|Johannes Trithemius]] born. He will be remembered as a lexicographer, chronicler, cryptographer, and occultist.		File:Johannes Trithemius.jpg\|link=Johannes Trithemius (nonfiction)\|1462: Polymath [[Johannes Trithemius (nonfiction)\|Johannes Trithemius]] born. He will be remembered as a lexicographer, chronicler, cryptographer, and occultist.

	\|\|1561: Mathematician and academic Henry Briggs born ... notable for changing the original logarithms invented by John Napier into common (base 10) logarithms, which are sometimes known as Briggsian logarithms in his honor. DOB unknown. Pic search (none?)~~: https://www~~.~~google.com/search?q=henry+briggs+mathematician~~		\|\|1561: Mathematician and academic Henry Briggs born ... notable for changing the original logarithms invented by John Napier into common (base 10) logarithms, which are sometimes known as Briggsian logarithms in his honor. DOB unknown. Pic search (none?).

	\|\|1659: Jacob Roggeveen born ... explorer who was sent to find Terra Australis, but instead came across Easter Island (called Easter Island because he landed there on Easter Day). Jacob Roggeveen also encountered Bora Bora and Maupiti of the Society Islands and Samoa. Pic search ~~yes: https://www~~.~~google.com/search?q=jacob+roggeveen~~		\|\|1659: Jacob Roggeveen born ... explorer who was sent to find Terra Australis, but instead came across Easter Island (called Easter Island because he landed there on Easter Day). Jacob Roggeveen also encountered Bora Bora and Maupiti of the Society Islands and Samoa. Pic search.

	\|\|1698: Mathematician Colin Maclaurin born. He will make important contributions to geometry and algebra. The Maclaurin series, a special case of the Taylor series, will be named after him. Pic.		\|\|1698: Mathematician Colin Maclaurin born. He will make important contributions to geometry and algebra. The Maclaurin series, a special case of the Taylor series, will be named after him. Pic.

	File:Charles Camus - Cours de mathématique.jpg\|link=Charles Étienne Louis Camus (nonfiction)\|1767: Mathematician and crime-fighter [[Charles Étienne Louis Camus (nonfiction)\|Charles Étienne Louis Camus]] publishes updated edition of ''Cours de mathématiques'' with new section on the detection and prevention of [[crimes against mathematical constants]].

	\|\|1801: Jean-Baptiste Boussingault born ... chemist and academic ... made significant contributions to agricultural science, petroleum science and metallurgy. Pic.		\|\|1801: Jean-Baptiste Boussingault born ... chemist and academic ... made significant contributions to agricultural science, petroleum science and metallurgy. Pic.

	\|\|1840: William Allen Whitworth born ... mathematician and a priest in the Church of England. Author of "Choice and Chance". Pic search (book cover)~~: https://www~~.~~google.com/search?q=William+Allen+Whitworth~~		\|\|1840: William Allen Whitworth born ... mathematician and a priest in the Church of England. Author of "Choice and Chance". Pic search (book cover).

	\|\|1847: Eduardo Torroja Caballé born ... mathematician. Pic.		\|\|1847: Eduardo Torroja Caballé born ... mathematician. Pic.
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	\|\|1916: George W. Mackey born ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.		\|\|1916: George W. Mackey born ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.

	\|\|1923: Computer scientist Jerre Noe born. In the 1950s, he led the technical team for the ERMA project, the Bank of America's first venture into computerized banking. Pic search~~: https://www~~.~~google.com/search?q=Jerre+Noe~~		\|\|1923: Computer scientist Jerre Noe born. In the 1950s, he led the technical team for the ERMA project, the Bank of America's first venture into computerized banking. Pic search.

	\|link=Sam Edwards (nonfiction)\|1928: Physicist and academic [[Sam Edwards (nonfiction)\|Sam Edwards]] born. Pic.		\|link=Sam Edwards (nonfiction)\|1928: Physicist and academic [[Sam Edwards (nonfiction)\|Sam Edwards]] born. Pic.

	File:Imre Lakatos.jpg\|link=Imre Lakatos (nonfiction)\|1934: Mathematician, philosopher, and crime-fighter [[Imre Lakatos (nonfiction)\|Imre Lakatos]] uses his thesis of the fallibility of mathematics and its 'methodology of proofs and refutations' in its pre-axiomatic stages of development to detect and prevent [[crimes against mathematical constants]].

	\|\|1940: George de Bothezat dies ... engineer, businessman, and pioneer of helicopter flight. Pic.		\|\|1940: George de Bothezat dies ... engineer, businessman, and pioneer of helicopter flight. Pic.
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	\|\|1964: William Howard Livens dies ... engineer, a soldier in the British Army and an inventor particularly known for the design of chemical warfare and flame warfare weapons. Resourceful and clever, Livens’ successful creations were characterised by being very practical and easy to produce in large numbers. Livens is best known for inventing the Livens Projector, a simple mortar-like weapon that could throw large drums filled with inflammable or toxic chemicals. Pic.		\|\|1964: William Howard Livens dies ... engineer, a soldier in the British Army and an inventor particularly known for the design of chemical warfare and flame warfare weapons. Resourceful and clever, Livens’ successful creations were characterised by being very practical and easy to produce in large numbers. Livens is best known for inventing the Livens Projector, a simple mortar-like weapon that could throw large drums filled with inflammable or toxic chemicals. Pic.

	\|\|1970: Alfréd Rényi dies ... mathematician and academic. Pic search ~~yes: https://www~~.~~google.com/search?q=alfréd+rényi&oq=Alfréd+Rényi~~		\|\|1970: Alfréd Rényi dies ... mathematician and academic. Pic search.

	File:Werner Heisenberg.jpg\|link=Werner Heisenberg (nonfiction)\|1976: Physicist and academic [[Werner Heisenberg (nonfiction)\|Werner Heisenberg]] dies. He introduced the [[Uncertainty principle (nonfiction)\|uncertainty principle]] -- in quantum mechanics, any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of physical properties of a particle can be known.		File:Werner Heisenberg.jpg\|link=Werner Heisenberg (nonfiction)\|1976: Physicist and academic [[Werner Heisenberg (nonfiction)\|Werner Heisenberg]] dies. He introduced the [[Uncertainty principle (nonfiction)\|uncertainty principle]] -- in quantum mechanics, any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of physical properties of a particle can be known.