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eVa's rete mirabile. Design of logarithmic spiral gear by closed complex function in to DXF format - Application Center. Design of logarithmic spiral gear by closed complex function in to DXF format Laczik B. laczik@goliat.eik.bme.hu Budapest University of Technology and Economics, HUNGARY The present worksheet deals with the complex algebraic representation of the gear tooth contact principles. The formulae deduced with the help of Maple software environment are closed form solution equations of the contact gear profile to a given rack profile. The worksheet make the final result of gear contour in DXF formatum directly.

Profile generation method The rolling straight line of the rack is rolling without slipping on the rolling curve of the gear with radius and the rack 1 tooth element is enveloping the 2 tooth of the gear. The slip less rolling of the pitch line of the rack on the centrode of the gear can be constructed from the three following motion elements: to the position II. Gear centrode arc CD and the length of the rolling strait AB the following equation holds : AB = CD. Design of logarithmic spiral gear by closed complex function in to DXF format - Application Center. Identité classe. Analogue physique. Individuel et collectif. Breaking the Illusion of Limitation. Virtual Math Museum Start Page. Symboldictionary.net. Cartographies des connaissances scientifiques. Norse rituals. Norse pagan worship is the traditional religious rituals practiced by Norse pagans in Scandinavia in pre-Christian times.

Norse rituals

Norse paganism was a folk religion (as opposed to an organised religion), and its main purpose was the survival and regeneration of society. Therefore, the cult was decentralized and tied to the village and the family, although evidence exists of great national religious festivals. The leaders managed the cult on behalf of society; on a local level, the leader would have been the head of the family, and nationwide, the leader was the king.

Pre-Christian Scandinavians had no word for religion in a modern sense. The closest counterpart is the word sidr, meaning custom. Christian mythology. Christian mythology is the body of myths associated with Christianity.

Christian mythology

Within contemporary Christianity, the appropriateness of describing Christian narratives as “myth” is a matter of disagreement. George Every claims that the existence of "myths in the Bible would now be admitted by nearly everyone", including "probably all Roman Catholics and a majority of Protestants".[1] As examples of biblical myths, Every cites the creation account in Genesis 1 and 2 and the story of Eve's temptation.[1] A number of modern Christian writers, such as C.S. Lewis, have described elements of Christianity, particularly the story of Christ, as "true myth". Can I Stream.It?: Search Netflix, Hulu, Google Play, iTunes, and more, for movies to stream instantly, rent, and buy. Le design de la visibilité. Notes Ce texte a bénéficié des travaux entrepris dans AUTOGRAPH (ANR) et dans le groupe de recherche sur le web 2.0 d’Orange Labs.

Le design de la visibilité

Les multiples discussions du mercredi matin avec N. Pissard, dont les intuitions sont à l’origine de cette typologie, C. Aguiton, J. -S. Dans le numéro 153, Réseaux proposera un ensemble d’études de cas portant sur Flickr, Wikipedia, MySpace, les blogs politiques, Second Life et les wikis d’entreprise. GROSS et ACQUISTI, 2005. Welcome to Principia Cybernetica Web. American Society for Cybernetics - Index. Management Cybernetics: science of effective organization. Universe of the Vedas. PII: S0997-7546(98)80010-1 - EurJMechB_v17.pdf. Photos - Vortex Based Math. Algorithmic Mathematical Art ₃ M C Escher M C Escher (1898 〜 1972) is a Dutch artist whose works are predominated by mathematical themes, many of which are purely algorithmic.

Algorithmic Mathematical Art ₃

Although, Escher is a traditional artist; his algorithmic arts are done manually, not by a program from computer, nor with a explicit algorithmic specification. It is easy to go from algorithms to visual images, but given a algorithmic artwork, it is difficult to extract the algorithm in the form of a precise runnable program. The following two works by M C Escher illustrates this: To generate this work algorithmically, one needs to encode the knot process. (M C Escher's artworks are copyrighted by M.C. Landau–Kolmogorov inequality.

In mathematics, the Landau–Kolmogorov inequality, named after Edmund Landau and Andrey Kolmogorov, is the following family of interpolation inequalities between different derivatives of a function f defined on a subset T of the real numbers:[1] On the real line[edit] For k = 1, n = 2, T=R the inequality was first proved by Edmund Landau[2] with the sharp constant C(2, 1, R) = 2.

Landau–Kolmogorov inequality

Following contributions by Jacques Hadamard and Georgiy Shilov, Andrey Kolmogorov found the sharp constants and arbitrary n, k:[3] where an are the Favard constants. On the half-line[edit] Géométrie - Table des matières. Ligne droite Le chemin le plus court d'un point à un autre est la ligne droite, à condition que les deux points soient bien en face l'un de l'autre.

Géométrie - Table des matières

La création par la pensée. Durant des décennies, on a associé les pouvoirs de l'esprit à l’ésotérisme.

La création par la pensée

Cependant, la mécanique quantique, modèle théorique et pratique aujourd'hui dominant dans le monde de la science, a démontré la corrélation existant entre la pensée et la réalité. D’étonnantes expériences ont été menées dans les laboratoires les plus avancés et viennent corroborer ce fait. L'étude sur le cerveau a avancé considérablement au cours des dernières décennies grâce à la tomographie. Cisco WebEx. Join.me. Economic Manuscripts: Theories of Surplus-Value by Karl Marx 1863. .Paul Krugman Blog. Economic Manuscripts: Capital, Vol.3, Table of Contents. OECD/ITF: JTRC Discussion Papers. Mosaïque 7 milliards d'Autres [FR] Scientists Begin to Unravel Gigantic Space Ribbon.

This 3-D diagram shows the ribbon (grey) wrapping around our bubble-like heliosphere like a belt.

Scientists Begin to Unravel Gigantic Space Ribbon

Grey lines show the interstellar magnetic field lines astronomers believe creates this mysterious ribbon. Credit: Adler Planetarium/IBEX Team In 2009 astronomers using NASA’s Interstellar Boundary Explorer (IBEX) spacecraft accidentally came across a giant ribbon-like formation snaking its way across the boundary between our solar system and interstellar space. Ever since, its true nature has remained a riddle astronomers have been unable to solve. But now, they believe they are a step closer to explaining this bizarre structure. The solar system—the sun and all its planets—is surrounded by a protective magnetic bubble-like boundary called the heliosphere, which acts as a frontline against incoming cosmic rays and interstellar clouds. The Starburst Foundation. Cosmology of the Vedas. Temple of the Vedic Planetarium - Presentation 2012. The Matrix Of Illusion. Traité de géométrie descriptive, comprenant les applications de cette ... - Jean-Nicolas-Pierre Hachette, M. Hachette.

Faire de l’archiviste le maillon fort de l’open data. Simon Chignard a publié hier, sur son blog donneesouvertes.info, un billet très intéressant.

Faire de l’archiviste le maillon fort de l’open data

Il s’y interroge sur la nature des données mises à disposition par les administrations sur les différents portails open data. Il constate notamment, pour résumer, un problème dans la qualité des jeux de données. Vécu des signes. Impossible d’y échapper.

vécu des signes

Cet homme en noir sur fond rouge qui emporte, l’air de rien, la barre blanche du sens interdit. Ou cette flèche blanche sur fond bleu indiquant la droite, qui prend la forme d’une ancre massive au bout de laquelle un malheureux paquebot est entraîné vers les fonds marins. Ou encore cette tour Eiffel qui se tord pour indiquer une direction. Dans les rues de Paris, mais aussi à Rome, Barcelone ou Berlin, de curieux panneaux de signalisation ont fait leur apparition. Google Hangout. Le pardon sous l'angle de la philosophie. Jusqu’où l’homme est-il capable de pardonner ? Existe-t-il une frontière infranchissable permettant de distinguer le pardonnable de l’impardonnable ? Pouvoir prochain (Pascal)

La guerre des théologiens – Contre la casuistique – La polémique – La violence et la vérité – Cavalier seul Quand Pascal publie la première Provinciale , il ne compte pas en écrire d’autres. Le succès révèle combien son style est propre à intéresser les plus indifférents aux matières théologiques en les conduisant « agréablement à la connaissance de la vérité » (Nicole).

La première Provinciale unit des éléments qui paraissent incompatibles : un problème d’actualité, une narration comique et la structure d’un roman policier (avant la naissance du genre), qui donnent à l’ensemble une solide charpente logique. Waiting for the End (Official HD) Tumblr.