Brainy Quote of the Day

Thursday, March 19, 2015

General Relativity...

Image Source: MIT Open Course Ware - General Relativity
Topics: Black Holes, Einstein, Special Relativity, GPS, Gravity, General Relativity, Spacetime, Wormholes

The 100th anniversary of the General Theory of Relativity also happens to have coincided with Einstein's birthday and the American Nerd-inspired Pi Day last Saturday (I say American, because it works when you use the dating sequence 3-14-15, and breaks down if you use military or European dating formats: e.g. 14 March 15; 14.3.15). Star Trek abused the word "warp" ad nauseum to get their astronauts from one side of the galaxy to the other in record time to solve galactic issues before the ending credits. Space is still vast, and getting to even our own solar system's planets in a human lifetime will take something more than conventional chemical rockets and Newtonian momentum, hence NASA's concentration on breakthrough propulsion technologies up to and inclusive of warp drive. Quoting one of the articles whose link I give below:

In 1905, Albert Einstein determined that the laws of physics are the same for all non-accelerating observers, and that the speed of light in a vacuum was independent of the motion of all observers. This was the theory of special relativity. It introduced a new framework for all of physics and proposed new concepts of space and time.

Einstein then spent ten years trying to include acceleration in the theory and published his theory of general relativity in 1915. In it, he determined that massive objects cause a distortion in space-time, which is felt as gravity. [1]

It is our current, best description in modern physics of gravity, and along with its effects, our Global Positioning Systems in our cars and smart phones; the evolution of stars into Brown Dwarfs; White Dwarfs, Black Holes and the theoretical possibility of Wormholes. It has outlived Einstein and proven its usefulness time and again.

1. Space.com: Einstein's Theory of General Relativity, Nola Taylor Redd
2. Einstein-Online: General Relativity
3. Princeton University Press: Relativity: The Special and the General Theory
100th Anniversary edition, Edited by Hanoch Gutfreund & Jürgen Renn
4. Physics Central: Einstein's Relativity and Everyday Life, Clifford M. Will (think GPS)

1 comment:

  1. On the centenary of Einstein's theory.
    Unified field THEORY
    Read my Unified theory of electromagnetic and gravitational fields, Author of the Chaykin on www.chaykins.ru
    In this paper, based on the uniform super fluid substance (vacuum liquid) is identical with the equations of the electromagnetic field and gravitational field.
    These differential equations are corrected by the author equations of electrodynamics Maxwell:
    1. Excluded vortex electric field, the electric field is always potentially.
    2. Time-varying magnetic field is interpreted as a density charge displacement and added to the real density of the charges.
    For the successful application of modified equations of electrodynamics to gravity, enough gravitational mass to be considered as a gravitational charge, having the same dimensionality as the electric charge.
    For that weight multiply on the gravitational constant of Newton in degree 1/2.
    Gravity currents are conventional mechanical pulses multiplied by this factor also leads to a vortex gravitational fieldes, as in electrodynamics and with the same consequences

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