Tag: theory of relativity
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Introduction to special theory of relativity.
Special Theory of Relativity: Galilean Transformations,. Newtonian Relativity. This was a lecture delivered to physics-elective class of a 3 year non-physics degree students on 10th April 2017. This is also a good exposition to honors students and anyone at an introductory level of the special theory of relativity, with requisite mathematical background. Let us consider…
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Waves, particles and Einstein !
Waves are something that have no mass and move at the maximum speed, mass m = 0. speed c = 1. So whats their momentum? p = m.v = 0? Right? No. For pure waves; momentum does not come from mass. It comes only from motion. (pure wave; they do not have mass) For matter…
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How to add speeds; Galileo and Einstein won’t agree.
How to calculate the speed of anything, when their speed becomes closer to the speed-of-light. This article was originally a comment in the linked article; Why Nothing Moves Faster Than Light. — In order to correct the comment I have made earlier ” unless something is completely mass-less in its rest-frame ” I also add the following. This…
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Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity by Steven Weinberg .. review
A highly sofisticated and an elegant text book on general Relativity and its application. I would say a super book. I have read this book and solved for now a few daunting problems in Physics by applications of the content in this book. My research is available on my website but for context I recommend…
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What is Theory of Relativity?
I have read so many complicated description of whats theory of relativity that I tend to think such complicacy serves two purposes; Misleading: it takes us away from the real concepts. Complicated: It does not make the concepts easy at all to grasp. Ineffective: It ill-prepares even very good students — as their precious time is wasted and…