“Israel’s space industry can deliver these capabilities. “Our requirements from ULTRASAT, such as a wide field of view, advanced ultraviolet sensitivity, and real-time data control and transfer are at the forefront of technological developments. “Groundbreaking science calls for cutting-edge technology,” said Uri Oron, director of the Israel Space Agency in the Ministry of Innovation, Science, and Technology. The ULTRASAT is being constructed by the Israeli Aerospace Industry, and the telescope is being built by Israeli defense-electronics company Elbit. Yet, as we have seen, Einstein resisted the temptation to account for the null result in terms of particles of light and simple, familiar Newtonian ideas, and introduced as his second postulate something that was more or less obvious when thought of in terms of waves in an ether." Banesh Hoffmann, Relativity and Its Roots, p.Sign up for our free weekly newsletter Subscribe And if we take light to consist of particles and assume that these particles obey Newton's laws, they will conform to Newtonian relativity and thus automatically account for the null result of the Michelson-Morley experiment without recourse to contracting lengths, local time, or Lorentz transformations. "Moreover, if light consists of particles, as Einstein had suggested in his paper submitted just thirteen weeks before this one, the second principle seems absurd: A stone thrown from a speeding train can do far more damage than one thrown from a train at rest the speed of the particle is not independent of the motion of the object emitting it. In his corpuscular theory Newton visualized light "corpuscles" being thrown off from hot bodies at a nominal speed of c with respect to the emitting object, and obeying the usual laws of Newtonian mechanics, and we then expect light to be moving towards us with a speed that is offset by the speed of the distant emitter (c ± v)."īanesh Hoffmann, Einstein's co-author, admits that, originally ("without recourse to contracting lengths, local time, or Lorentz transformations"), the Michelson-Morley experiment was compatible with Newton's variable speed of light, c'=c±v, and incompatible with the constant speed of light, c'=c: Wikipedia: "Emission theory, also called emitter theory or ballistic theory of light, was a competing theory for the special theory of relativity, explaining the results of the Michelson–Morley experiment of 1887.The name most often associated with emission theory is Isaac Newton. The reason is that the speed of light is VARIABLE AS PER NEWTON, as originally (prior to the introduction of the length-contraction fudge factor) proved by the Michelson-Morley experiment: Spacetime and gravitational waves (ripples in spacetime) don't exist - LIGO's "discoveries" are fakes. This process not only occurs under the surface of stars, but also in fusion reactors on Earth. The team based part of their equations on the propagation of electromagnetic waves in plasma. Under certain simplifying assumptions about the physical properties of matter, they could calculate how gravitational waves and matter affect each other. To calculate how this primordial plasma would have affected these ancient gravitational waves, Garg and his supervisor Ilya Dodin (opens in new tab) carefully analyzed the equations of Einstein's theory of relativity, which describes how the geometry of space changes as matter moves through it. However, when the universe was in its infancy, huge amounts of matter moved around, generating gravitational waves that had to propagate through a primordial plasma, which would have interacted with the waves, altering their shape and trajectory. These cosmic cataclysms generate the most powerful gravitational waves, and they travel from the collision region to Earth in a vacuum, meaning that to describe them, physicists need only model the physics of these ripples in empty space. Until now, physicists have used detectors such as the Laser Interferometer Gravitational Wave Observatory (LIGO) to hunt gravitational waves born in the collisions of black holes. An illustration showing waves of space-time rippling away from two colliding neutron stars (Image credit: NASA) A matter of great gravityĪccording to Einstein's theory of general relativity, massive bodies interact gravitationally by deforming space around them, generating ripples in space-time called gravitational waves that travel at the speed of light.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |