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Research Questions and Rules - Presentation
Transcript of Research Questions and Rules - Presentation
Part II. General Relativity How does gravity and motion of the planets were viewed historically before newton? What life and times of Issac newton, including his personal life also including scientific contributions to the theory of gravity ? What role does the equivalent of the inertial an gravitational properties of mass play in the development of general relativity? Before newton , philosophers and scientist viewed it as dots or motes upon great crystal spheres centered about the the earth; Aristotle basically felt that gravity affected the motion of the planets; kelpers had a three laws of planetary motion, sun is elliptical in shape being the focusing on imaginary line drawn from center to planet sweep out equal areas i equal intervals of time, the ratio or square of periods of two planets to ratio of cubes of Cave rage distances from the sun. The role it assume that intertial and gravitational mass is the same. He lived and died in [1642-1727], born Christmas day, denied attention, he had emotional collapse occasionally vindictive. He was an English physicist, Mathematician, Astronomer, Natural Philosopher, Alchemist, and the theologists. He described universal gravitation and the three laws of motion. What contribution of theory Cavendish to the universal law of gravitation? He experimented and measured the universal constant of gravitation. How does gravity correspond o the bending of the space-time fabric/ Space is not like air, its is the ''location''. Mass can bend the fabric o space. Mass will bend the fabric of the space or object,''mass'' must displace it. What is the schwarzschild radius Gravitational radius attracts between the particles of a body must cause it to undergo irreversible gravitational collapse what are black holes, and are they real? A black hole is a region of space time where gravity prevents anything, including light, from escaping.Astrophysicists generally agree that black holes exist.There is good observational evidence from X-ray observations and from the Hubble Space Telescope that there are massive black holes (with masses more than a million times that of the Sun) exist in the centers of some galaxies How does gravity bend light? What is Gravitational lensing? The light passes through a transparent to the natural light, that's a bit slower inside the material. What are worm s,hole and are they real? connect two points in space time, which means that they would in principle allow travel in time, as well as in space.None has ever been observed, and their existence is wholly hypothetical. Why is it called the general theory of relativity and not the general hypothesis of relativity? A hypothesis is a educated guess for a general explanation based on past observations.o qualify, it must lead to predictions of new observations which differ from the expectations of prevailing theories. If said predictions come to pass, the hypothesis "graduates" into a theory. The central idea of General Relativity is that there are many different ways of assigning space time coordinates to events, all of which ways can be described by the same laws of physics.