Template:Are You Sure/April 9: Difference between revisions

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• ... that mathematician and astronomer '''[[Joseph-Louis Lagrange (nonfiction)|Joseph-Louis Lagrange]]''' made significant contributions to the fields of [[Mathematical analysis (nonfiction)|analysis]], [[Number theory (nonfiction)|number theory]], and both classical and celestial mechanics, and that Lagrange's treatise "Theorie des fonctions analytiques" laid some of the foundations of [[Group theory (nonfiction)|group theory]]?
• ... that physicist and academic '''[[Thomas Johann Seebeck (nonfiction)|Thomas Johann Seebeck]]''' (9 April 1770 – 10 December 1831) discovered the thermoelectric effect?


• ... that '''[[The Duringlife (nonfiction)|the Duringlife]]''' is a humorous term for life coined by [[Karl Jones (nonfiction)|Karl Jones]]?
• ... that '''[[Édouard-Léon Scott de Martinville (nonfiction)|Édouard-Léon Scott de Martinville]]''' (25 April 1817 – 26 April 1879) made the oldest known recording of an audible human voice, a visual recording of audio data; and that it was first be played back in 2008?
 
• ... that mathematician and electrical engineer '''[[Charles Proteus Steinmetz (nonfiction)|Charles Proteus Steinmetz]]''' promoted the development of alternating current, formulating mathematical theories which will advanced the expansion of the electric power industry in the United States?

Revision as of 14:26, 8 April 2021

• ... that physicist and academic Thomas Johann Seebeck (9 April 1770 – 10 December 1831) discovered the thermoelectric effect?

• ... that Édouard-Léon Scott de Martinville (25 April 1817 – 26 April 1879) made the oldest known recording of an audible human voice, a visual recording of audio data; and that it was first be played back in 2008?

• ... that mathematician and electrical engineer Charles Proteus Steinmetz promoted the development of alternating current, formulating mathematical theories which will advanced the expansion of the electric power industry in the United States?

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