Template:Are You Sure/September 21: Difference between revisions

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[[File:Ehrenfest_Lorentz_Bohr_Kamerlingh_Onnes.jpg|thumb|175px|link=Heike Kamerlingh Onnes (nonfiction)|Cryogenics Laboratory in Leiden, 1919. Left to right: [[Paul Ehrenfest (nonfiction)|Paul Ehrenfest]], [[Hendrik Lorentz (nonfiction)|Hendrik Lorentz]], [[Niels Bohr (nonfiction)|Niels Bohr]], and [[Heike Kamerlingh Onnes (nonfiction)|Heike Kamerlingh Onnes]] (discoverer of superconductivity).]]
[[File:Components of a Nomogram.png|thumb|175px|link=Nomogram (nonfiction)|A '''nomogram''' (from Greek νόμος ''nomos'', "law" and γραμμή ''grammē'', "line"), also called a '''nomograph''', '''alignment chart''' or '''abaque''', is a graphical calculating device, a two-dimensional diagram designed to allow the approximate graphical computation of a [[Function (nonfiction)|mathematical function]]. The field of '''nomography''' was invented in 1884 by the French engineer [[Philbert Maurice d’Ocagne (nonfiction)|Philbert Maurice d’Ocagne]] (1862-1938) and used extensively for many years to provide engineers with fast graphical calculations of complicated formulas to a practical precision.]]


• ... that physicist and chemist [[Heike Kamerlingh Onnes (nonfiction)|Heike Kamerlingh Onnes]] was awarded the 1913 Nobel Prize in Physics for "his investigations on the properties of matter at low temperatures which led, ''inter alia'', to the production of liquid helium"?
• ... that mathematician [[Shoshichi Kobayashi (nonfiction)|Shoshichi Kobayashi]] studied Riemannian and complex manifolds, transformation groups of geometric structures, and Lie algebras?
 
• ... that in 1660, [[Vincenzo Viviani (nonfiction)|Vincenzo Viviani]] and Giovanni Alfonso Borelli conducted an experiment to determine the speed of sound. Timing the difference between the seeing the flash and hearing the sound of a cannon shot at a distance, they calculated a value of 350 meters per second (m/s), considerably better than the previous value of 478 m/s obtained by Pierre Gassendi?


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Revision as of 01:38, 22 September 2020

A nomogram (from Greek νόμος nomos, "law" and γραμμή grammē, "line"), also called a nomograph, alignment chart or abaque, is a graphical calculating device, a two-dimensional diagram designed to allow the approximate graphical computation of a mathematical function. The field of nomography was invented in 1884 by the French engineer Philbert Maurice d’Ocagne (1862-1938) and used extensively for many years to provide engineers with fast graphical calculations of complicated formulas to a practical precision.

• ... that mathematician Shoshichi Kobayashi studied Riemannian and complex manifolds, transformation groups of geometric structures, and Lie algebras?


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