resistance in the third reich
Isaac Newton was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a "natural philosopher"), widely recognised as one of the greatest mathematicians and physicists and among the most influential scientists of all time. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus.
In the Principia, Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint until it was superseded by the theory of relativity. Newton used his mathematical description of gravity to derive Kepler's laws of planetary motion, account for tides, the trajectories of comets, the precession of the equinoxes and other phenomena, eradicating doubt about the Solar System's heliocentricity. He demonstrated that the motion of objects on Earth and celestial bodies could be accounted for by the same principles. Newton's inference that the Earth is an oblate spheroid was later confirmed by the geodetic measurements of Maupertuis, La Condamine, and others, convincing most European scientists of the superiority of Newtonian mechanics over earlier systems.
igmund Freud, born Sigismund Schlomo Freud, was an Austrian psychologist, psychiatrist and neurologist, the founder of psychoanalysis.
He graduated from the medical faculty of the University of Vienna, was engaged in self-education and numerous, cutting-edge for his time studies of the human psyche. The resulting psychoanalysis he created was both a theory of the human psyche, a therapy to alleviate its ills, and a tool for interpreting culture and society. Freud's psychoanalysis had a significant impact on psychology, medicine, sociology, anthropology, literature and art in the twentieth century.
Despite the sometimes harsh criticism of virtually all of his ideas and teachings, which continues almost a century after his death, Freud remains one of the most influential intellectual figures of our time.
