postulate
91Euklidische Geometrie — Die euklidische Geometrie ist zunächst die uns vertraute, anschauliche Geometrie der Ebene oder des dreidimensionalen Raums. Der Begriff hat jedoch sehr verschiedene Aspekte und lässt Verallgemeinerungen zu. Inhaltsverzeichnis 1 Die Geometrie des …
92Postulat — Als Postulat (von lat.: postulatum = „Gefordertes, Erbetenes, vor Gericht beanspruchtes oder Behauptetes“[1]) wird ein Grundsatz für eine Diskussion, eine Theorie oder ein formales System bezeichnet, der keine neuen Terme einführt, aber nicht aus …
93Hyperbolic geometry — Lines through a given point P and asymptotic to line R. A triangle immersed in a saddle shape plane (a hyperbolic paraboloid), as well as two diverging ultraparall …
94Euclid's Elements — (Greek: polytonic|Στοιχεῖα) is a mathematical and geometric treatise consisting of 13 books written by the Greek mathematician Euclid in Alexandria circa 300 BC. It comprises a collection of definitions, postulates (axioms), propositions… …
95Birkhoff's axioms — In 1932, G. D. Birkhoff created a set of four postulates of Euclidean geometry sometimes referred to as Birkhoff s axioms. These postulates are all based on basic geometry that can be confirmed experimentally with a scale and protractor. Since… …
96Difference and Repetition —   …
97Relational quantum mechanics — This article is intended for those already familiar with quantum mechanics and its attendant interpretational difficulties. Readers who are new to the subject may first want to read the introduction to quantum mechanics. Relational quantum… …
98Many-worlds interpretation — The quantum mechanical Schrödinger s cat paradox according to the many worlds interpretation. In this interpretation every event is a branch point; the cat is both alive and dead, even before the box is opened, but the alive and dead cats are in… …
99Special relativity — (SR) (also known as the special theory of relativity or STR) is the physical theory of measurement in inertial frames of reference proposed in 1905 by Albert Einstein (after considerable contributions of Hendrik Lorentz and Henri Poincaré) in the …
100Introduction to special relativity — In physics, special relativity is a fundamental theory about space and time, developed by Albert Einstein in 1905 [ On the Electrodynamics of Moving Bodies . (fourmilab.ch web site): [http://www.fourmilab.ch/etexts/einstein/specrel/www/… …
