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Snell's law (also known as the Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.
Descartes on Polyhedra: A Study of the "De solidorum elementis" is a book in the history of mathematics, concerning the work of René Descartes on polyhedra.Central to the book is the disputed priority for Euler's polyhedral formula between Leonhard Euler, who published an explicit version of the formula, and Descartes, whose De solidorum elementis includes a result from which the formula is ...
Method of normals. In calculus, the method of normals was a technique invented by Descartes for finding normal and tangent lines to curves. It represented one of the earliest methods for constructing tangents to curves. The method hinges on the observation that the radius of a circle is always normal to the circle itself.
Service. Descartes at Sebastopol, during the first day's attack by the allied fleet and armies of France and England on 17 October 1854. She took part in the Crimean War, and was used to ferry wounded from Italy. On 17 October 1855, she took part in the Battle of Kinburn . She was eventually broken up in Brest in July 1867.
978-0-399-13894-2. Descartes' Error: Emotion, Reason, and the Human Brain is a 1994 book by neuroscientist António Damásio describing the physiology of rational thought and decision, and how the faculties could have evolved through Darwinian natural selection. [1] Damásio refers to René Descartes ' separation of the mind from the body (the ...
Descartes. -class cruiser. The Descartes class comprised two protected cruisers of the French Navy built in the early 1890s; the two ships were Descartes and Pascal. They were ordered as part of a naval construction program directed at France's rivals, Italy and Germany, particularly after Italy made progress in modernizing its own fleet.
René Descartes. The causal adequacy principle ( CAP ), or causal reality principle, is a philosophical claim made by René Descartes that the cause of an object must contain at least as much reality as the object itself, whether formally or eminently.
Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences ( French: Discours de la Méthode pour bien conduire sa raison, et chercher la vérité dans les sciences) is a philosophical and autobiographical treatise published by René Descartes in 1637. It is best known as the source of the famous quotation ...