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Letters on the English (or Letters Concerning the English Nation; French: Lettres philosophiques) are a series of essays written by Voltaire based on his experiences living in Great Britain between 1726 and 1729. The book was published first in English in 1733 and then in French the following year, where it was seen as an attack on the French ...
The curve was first proposed and studied by René Descartes in 1638. [1] Its claim to fame lies in an incident in the development of calculus.Descartes challenged Pierre de Fermat to find the tangent line to the curve at an arbitrary point since Fermat had recently discovered a method for finding tangent lines.
The Imaginary Invalid, The Hypochondriac, or The Would-Be Invalid (French title Le Malade imaginaire, [lə malad imaʒinɛːʁ]) is a three-act comédie-ballet by the French playwright Molière with dance sequences and musical interludes (H.495, H.495 a, H.495 b) by Marc-Antoine Charpentier.
Cartesian anxiety is a philosophical concept for the conflict that a subject experiences of failing to have—in reality—either a fixed and stable foundation for knowledge of what is and is not real, or an inescapable and incomprehensible groundlessness of reality. [1]
In geometry, Descartes' theorem states that for every four kissing, or mutually tangent, circles, the radii of the circles satisfy a certain quadratic equation. By solving this equation, one can construct a fourth circle tangent to three given, mutually tangent circles.
Apollo 16 (April 16–27, 1972) was the tenth crewed mission in the United States Apollo space program, administered by NASA, and the fifth and penultimate to land on the Moon.
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology), which ...
Descartes is often regarded as the first thinker to emphasize the use of reason to develop the natural sciences. [4] For him, philosophy was a thinking system that embodied all knowledge, as he related in a letter to a French translator: [5]