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{{Short description|This topic describes the inventions and discoveries of people of danish origin}} |
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{{Short description|This topic describes the inventions and discoveries of people of danish origin}} |
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{{Incomplete list|date=May 2025}} |
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{{Incomplete list|date=May 2025}} |
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This is a list of Danish inventions and discoveries. The following incomplete list comprises people from Danish and of Danish origin. |
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This is a '''list of Danish inventions and discoveries'''. The following incomplete list comprises people from Danish and of Danish origin. |
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The following is a list of inventions or discoveries generally believed to be Danish: |
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The following is a list of inventions or discoveries generally believed to be Danish: |
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==Arts== |
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==Arts== |
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*[[Lego]] — a line of plastic construction toys manufactured by the [[The Lego Group|Lego Group]], a privately held company based in Billund, Denmark. It was founded by Ole Kirk Christiansen, a carpenter from Billund, Denmark, who began making wooden toys in 1932.[{{Cite web |last=Thorø |first=Marianne |date=2018-12-06 |title=LEGO-løverne har forladt Billund |url=https://billundonline.dk/lego-loeverne-har-forladt-billund/ |access-date=2023-11-28 |website=Billundonline.dk - Nyheden når den er ny - fra hele Billund kommune |language=da-DK}}] By 1930, Christiansen employed a small workforce to maintain his growing business.[{{Cite book |last=Herman |first=Sarah |url=https://www.amazon.co.uk/Building-History-Group-Sarah-Herman-ebook/dp/B00E8HPN12 |title=Building a History: The Lego Group |publisher=Pen & Sword Books Ltd |year=2012 |location=Barnsley, South Yorkshire |access-date=15 January 2021 |archive-date=27 February 2023 |archive-url=https://web.archive.org/web/20230227104629/https://www.amazon.co.uk/Building-History-Group-Sarah-Herman-ebook/dp/B00E8HPN12 |url-status=live }}] |
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*[[Lego]] — a line of plastic construction toys manufactured by the [[The Lego Group|Lego Group]], a privately held company based in Billund, Denmark. It was founded by Ole Kirk Christiansen, a carpenter from Billund, Denmark, who began making wooden toys in 1932.[{{Cite web |last=Thorø |first=Marianne |date=2018-12-06 |title=LEGO-løverne har forladt Billund |url=https://billundonline.dk/lego-loeverne-har-forladt-billund/ |access-date=2023-11-28 |website=Billundonline.dk - Nyheden når den er ny - fra hele Billund kommune |language=da-DK}}] By 1930, Christiansen employed a small workforce to maintain his growing business.[{{Cite book |last=Herman |first=Sarah |url=https://www.amazon.co.uk/Building-History-Group-Sarah-Herman-ebook/dp/B00E8HPN12 |title=Building a History: The Lego Group |publisher=Pen & Sword Books Ltd |year=2012 |location=Barnsley, South Yorkshire |access-date=15 January 2021 |archive-date=27 February 2023 |archive-url=https://web.archive.org/web/20230227104629/https://www.amazon.co.uk/Building-History-Group-Sarah-Herman-ebook/dp/B00E8HPN12 |url-status=live }}] |
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==Astronomy== |
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==Astronomy== |
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*[[Tychonic system]] — a model of the universe published by [[Tycho Brahe]] in 1588, which describes the Earth as the centre of the universe, with the planets revolving around the Sun, which in turn revolves around the Earth.["The Tychonic system is, in fact, precisely equivalent mathematically to Copernicus' system." (p. 202) and "[T]he Tychonic system is transformed to the Copernican system simply by holding the sun fixed instead of the earth. The relative motions of the planets are the same in both systems ..." (p. 204), Kuhn, Thomas S.] , ''The Copernican Revolution'' (Harvard University Press, 1957). |
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*[[Tychonic system]] — a model of the universe published by [[Tycho Brahe]] in 1588, which describes the Earth as the centre of the universe, with the planets revolving around the Sun, which in turn revolves around the Earth.["The Tychonic system is, in fact, precisely equivalent mathematically to Copernicus' system." (p. 202) and "[T]he Tychonic system is transformed to the Copernican system simply by holding the sun fixed instead of the earth. The relative motions of the planets are the same in both systems ..." (p. 204), Kuhn, Thomas S., ''The Copernican Revolution'' (Harvard University Press, 1957).] |
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==Biology== |
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==Biology== |
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*[[Gram stain]] — a method of [[staining]] used to classify [[bacteria]] species which was developed by Danish [[bacteriologist]] [[Hans Christian Gram]] .[{{cite web |title=Gram Stain: MedlinePlus Medical Test |url=https://medlineplus.gov/lab-tests/gram-stain/#:~:text=What%20is%20it%20used%20for,used%20to%20diagnose%20fungal%20infections. |website=medlineplus.gov |language=en}}][{{cite journal |last=Colco |first=R. |title=Gram Staining |journal=[[Current Protocols in Microbiology]] |date=2005 |volume=Appendix 3 |issue=1 |pages=Appendix 3C |doi=10.1002/9780471729259.mca03cs00 |pmid=18770544 |isbn=978-0-471-72925-9 |s2cid=32452815 }}] |
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*[[Gram stain]] — a method of [[staining]] used to classify [[bacteria]] species which was developed by Danish [[bacteriologist]] [[Hans Christian Gram]] .[{{cite web |title=Gram Stain: MedlinePlus Medical Test |url=https://medlineplus.gov/lab-tests/gram-stain/#:~:text=What%20is%20it%20used%20for,used%20to%20diagnose%20fungal%20infections. |website=medlineplus.gov |language=en}}][{{cite journal |last=Colco |first=R. |title=Gram Staining |journal=[[Current Protocols in Microbiology]] |date=2005 |volume=Appendix 3 |issue=1 |pages=Appendix 3C |doi=10.1002/9780471729259.mca03cs00 |pmid=18770544 |isbn=978-0-471-72925-9 |s2cid=32452815 }}] |
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*[[Parotid duct]] — first described by [[Nicolas Steno]]. |
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*[[Parotid duct]] — first described by [[Nicolas Steno]]. |
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==Chemistry== |
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==Chemistry== |
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*[[pH]]- The pH scale was invented in 1909 by Danish chemist [[Søren Peter Lauritz Sørensen]] at the Carlsberg Laboratory. He developed it as a convenient method for measuring the acidity or basicity of substances.[{{cite journal |last1=Sørensen |first1=S. P. L. |year=1909 |title=Über die Messung und die Bedeutung der Wasserstoffionenkonzentration bei enzymatischen Prozessen |url=https://core.ac.uk/download/pdf/14517358.pdf |url-status=live |journal=Biochemische Zeitschrift |volume=21 |pages=131–304 |archive-url=https://web.archive.org/web/20210415205740/https://core.ac.uk/download/pdf/14517358.pdf |archive-date=15 April 2021 |access-date=22 March 2021 |quote=Original German: Für die Zahl ''p'' schlage ich den Namen Wasserstoffionenexponent und die Schreibweise ''p''H• vor. Unter dem Wasserstoffionexponenten (''p''H•) einer Lösung wird dann der Briggsche Logarithmus des reziproken Wertes des auf Wasserstoffionen bezogenen Normalitätsfaktors der Lösung verstanden.}} Two other publications appeared in 1909, one in French and one in Danish.] |
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*[[pH]]- The pH scale was invented in 1909 by Danish chemist [[Søren Peter Lauritz Sørensen]] at the Carlsberg Laboratory. He developed it as a convenient method for measuring the acidity or basicity of substances.[{{cite journal |last1=Sørensen |first1=S. P. L. |year=1909 |title=Über die Messung und die Bedeutung der Wasserstoffionenkonzentration bei enzymatischen Prozessen |url=https://core.ac.uk/download/pdf/14517358.pdf |url-status=live |journal=Biochemische Zeitschrift |volume=21 |pages=131–304 |archive-url=https://web.archive.org/web/20210415205740/https://core.ac.uk/download/pdf/14517358.pdf |archive-date=15 April 2021 |access-date=22 March 2021 |quote=Original German: Für die Zahl ''p'' schlage ich den Namen Wasserstoffionenexponent und die Schreibweise ''p''H• vor. Unter dem Wasserstoffionexponenten (''p''H•) einer Lösung wird dann der Briggsche Logarithmus des reziproken Wertes des auf Wasserstoffionen bezogenen Normalitätsfaktors der Lösung verstanden.}} Two other publications appeared in 1909, one in French and one in Danish.] |
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==Physics== |
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==Physics== |
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===Natural physics=== |
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===Natural physics=== |
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*[[Speed of light]] — [[Ole Christensen Rømer]] was a Danish astronomer , first demonstrated that light travels at a finite speed.[{{Cite journal |last=van Helden |first=Albert |date=1983 |title=Roemer's Speed of Light |url=https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1983JHA....14..137V&db_key=AST&page_ind=0&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES |journal=Journal for the History of Astronomy |language=en |volume=14 |issue=2 |pages=137–141 |doi= 10.1177/002182868301400206|bibcode=1983JHA....14..137V |issn=}}] |
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*[[Speed of light]] — [[Ole Christensen Rømer]] was a Danish astronomer, first demonstrated that light travels at a finite speed.[{{Cite journal |last=van Helden |first=Albert |date=1983 |title=Roemer's Speed of Light |url=https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1983JHA....14..137V&db_key=AST&page_ind=0&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES |journal=Journal for the History of Astronomy |language=en |volume=14 |issue=2 |pages=137–141 |doi= 10.1177/002182868301400206|bibcode=1983JHA....14..137V |issn=}}] |
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===Electrical physics=== |
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===Electrical physics=== |
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==Technology== |
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==Technology== |
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*[[Thermometer]] The modern thermometer, showing the temperature between two fixed points,{{clarify|date=May 2025}} was invented by Ole Rømer. |
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*[[Thermometer]] The modern thermometer, showing the temperature between two fixed points,{{clarify|date=May 2025}} was invented by Ole Rømer. |
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===Computer Science=== |
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===Computer Science=== |
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*[[C++]] — a high-level, programming language created by Danish computer scientist [[Bjarne Stroustrup]].[{{Cite book |last=Stroustrup |first=Bjarne |author-link=Bjarne Stroustrup |title=The C++ Programming Language |year=1997 |edition=Third |chapter=1 |publisher=Addison-Wesley |isbn=0-201-88954-4 |oclc=59193992 |url=https://archive.org/details/cprogramminglang00stro_0 }}] |
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*[[C++]] — a high-level, programming language created by Danish computer scientist [[Bjarne Stroustrup]].[{{Cite book |last=Stroustrup |first=Bjarne |author-link=Bjarne Stroustrup |title=The C++ Programming Language |year=1997 |edition=Third |chapter=1 |publisher=Addison-Wesley |isbn=0-201-88954-4 |oclc=59193992 |url=https://archive.org/details/cprogramminglang00stro_0 }}] |
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{{reflist}} |
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{{reflist}} |
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{{Inventions}} |
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{{Inventions}} |
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[[Category:Lists of inventions or discoveries]] |
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[[Category:Lists of inventions or discoveries]] |
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