The Elegant Universe – Einstein’s Relativity
Einstein’s General Theory of Relativity explained.
Lecture 1 | Modern Physics: Special Relativity (Stanford)
Lecture 1 of Leonard Susskind’s Modern Physics course concentrating on Special Relativity. Recorded April 14, 2008 at Stanford University. This Stanford Continuing Studies course is the third of a six-quarter sequence of classes exploring the essential theoretical foundations of modern physics. The topics covered in this course focus on classical mechanics. Leonard Susskind is the Felix Bloch Professor of Physics at Stanford University. Complete Playlist for the Course: www.youtube.com Stanford Continuing Studies: continuingstudies.stanford.edu About Leonard Susskind: www.stanford.edu Stanford University Channel on YouTube: www.youtube.com
Is it possible to predict movements in the Stock Market ?
Visualization of Einstein’s special relativity
This video demonstrates the effects of Einstein’s special relativity on objects that move at high velocities. More particularly, it visualizes the Lorentz transformation. The video shows a 3-dimensional view containing 2 dimensions of space and one dimension of time. This view is used to demonstrate the difference between classical physics and Einstein’s relativity, and why the latter was necessary to understand experimental results. Visit our sponsors: www.therockerspaniels.com
What wondrous new changes await us in 2012 ?
New Camera Is Faster Than Light
Scientists at MIT have developed a virtual camera that can photograph light in motion. The camera shoots one trillion frames per second so it is technically, “faster than the speed of light.” This is the dawning of a whole new era in technology. We’ve always assumed that nothing could move faster than light. After all , light is moving at approximately 671 million miles per hour. Now that we can examine light more closely we can begin a new age of technological development. This is a major breakthrough.
Verified Predictions of General Relativity
Developed by Einstein in 1915, the general theory of relativity is the modern theory of gravity. This is a very complicated mathematical theory which in a nutshell says that space and time, collectively known as spacetime, is curved by the presence of matter and energy, and that the motion of matter and energy is influenced by this curvature.
When Einstein devised his theory, he had three experiments in mind to test its predictions. One was the gravitational bending of starlight around the sun. According to general relativity, the path of starlight which grazes the surface of the sun should bend by 1.75 arcseconds. This effect can be measured during a total eclipse. In 1919, Sir Arthur Eddington measured precisely this bending during an expedition in which he observed a total eclipse. This discovery made Einstein an immediate worldwide celebrity.
The second prediction is the precession of planetary orbits about the sun. According to general relativity, the perihelion of the orbit of mercury should precess about the sun by 43 arcseconds per century. This effect was in fact observed prior to Einstein’s theory and unexplained until predicted by the theory.
The third experimentally verified prediction is the slowing down of time due to gravity. This effect causes light to be redshifted in the presence of a strong gravitational field, i.e. near the surface of a massive star. This effect is observed in the spectra of massive stars. Taken to its extreme, this effect predicts the existence of black holes, i.e. objects which are so massive that nothing, not even light, can escape from their gravity. Black holes have been observed indirectly and now their existence is practically undisputed.
10 steps to becoming a millionaire
