Results 41 to 50 of about 13,441 (190)
Studia Historiae Scientiarum, 2023 In this note we publish a short letter from Leonhard Euler’s son, Johann Albrecht Euler, the Secretary of the Imperial Academy in St. Petersburg, to Marcin Poczobutt-Odlanicki, the Vilnius astronomer.
Veronika Girininkaitė +2 more
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Means or end? On the Valuation of Logic Diagrams [PDF]
, 2016 From the beginning of the 16th century to the end of the 18th century, there were not less than ten philosophers who focused extensively on Venn’s ostensible analytical diagrams, as noted by modern historians of logic (Venn, Gardner, Baron, Coumet et al.)
Lemanski, Jens
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Nicolas-Auguste Tissot: A link between cartography and quasiconformal theory
, 2016 Nicolas-Auguste Tissot (1824--1897) published a series of papers on cartography in which he introduced a tool which became known later on, among geographers, under the name of the "Tissot indicatrix." This tool was broadly used during the twentieth ...
Papadopoulos, Athanase
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Formula for the Chandler Period (Free Wobble of Planetary Bodies)
Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.Abstract If the rotational equilibrium of a planetary body is disturbed, the rotation pole responds with a cyclical motion. The duration of one cycle is referred to as the Chandler period, and, when viewed from space, the body wobbles. Because planets are not rigid, the wobble period differs from the Euler period by the factor 1−kX/kf $\left(1-{k}_ ...
V. Patočka, M. Walterová
wiley +1 more source
Genesis of d'Alembert's paradox and analytical elaboration of the drag problem
, 2008 We show that the issue of the drag exerted by an incompressible fluid on a body in uniform motion has played a major role in the early development of fluid dynamics.
Frisch, Uriel +2 more
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Physikalische Blätter, 1985 AbstractLeonhard Euler, der am 4. April 1707 als Sohn des Pastors Paul Euler in Riehen bei Basel (Schweiz) geboren wurde und am 7. September 1783 als Mitglied der Akademie der Wissenschaften in St. Petersburg (Rußland) starb, war der fruchtbarste und vielseitigste Mathematiker aller Zeiten.
openaire +1 more source
A Dynamic Systems Model for an Economic Evaluation of Sales Forecasting Methods
Tehnički Glasnik, 2023 Sales forecasts are essential for a smooth workflow and cost optimization. Usually, they are assessed using statistical error measures, which might be misleading in a business context.
Lara Kuhlmann, Markus Pauly
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From Logical Calculus to Logical Formality—What Kant Did with Euler’s Circles [PDF]
, 2017 John Venn has the “uneasy suspicion” that the stagnation in mathematical logic between J. H. Lambert and George Boole was due to Kant’s “disastrous effect on logical method,” namely the “strictest preservation [of logic] from mathematical encroachment ...
Lu-Adler, Huaping
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Hybrid AdvancesAlCrN and AlCrVYN thin films were deposited by physical vapor deposition using dcMS, HiPIMS and hybrid dcMS/HiPIMS processes. Although all the thin films were produced using the same time-average power and show only slight differences in the chemical ...
Wolfgang Tillmann +5 more
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Siete puentes, un camino: Königsberg [PDF]
, 2004 En este trabajo se presenta el problema de los puentes de Konigsberg, resuelto por Leonhard Euler, en 1735, como herramienta didáctica que se puede utilizar para introducir a los alumnos en el estudio de la Combinatoria.
Alfonso Pérez, María +4 more
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