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Review: Feynman Lectures On GravitationGebruikersrecensie - Robert - Goodreads
I didn't have a clue what was going on in this book for the most part: I'm much better equiped to tackle it these days and should re-read it. Volledige recensie lezen
Review: Feynman Lectures On GravitationGebruikersrecensie - Skymeson Rolnick - Goodreads
Great book by Feynman. Its his actual lectures as recorded by graduate students. It captures the Feynmanesk way of thinking although a lot of his ideas were not correct. Volledige recensie lezen
Overige edities - Alles weergeven
acceleration amplitude antimatter assume behavior Bryce DeWitt calculate charge classical components compute consider construct correct corresponding cosmological coupling covariant curvature tensor deduce defined density derivatives described diagrams distance divergence earth effects Einstein electrodynamics electromagnetic electron example exchange expression Feyn Feynman field equation field theory Figure finite formula function galaxies gauge invariance geometrical gravitational constant gravitational field gravitational forces gravitational waves graviton integral interaction involving Lagrangian lectures Mach's Principle mass massless spin-2 matter measured metric tensor momentum nebulae neutrino Newtonian nucleon objects observer obtain one-loop orbits particles perturbative photons physical polarization possible potential principle of equivalence problem proportional quantity quantized quantum gravity quantum mechanics quantum theory radiation radius region relativistic result scalar Schwarzschild simply solutions space spherical spin star stress-energy tensor string theory superstars supersymmetry surface symmetric temperature theory of gravitation transformation universe vector velocity Venutian waves wormhole zero
Pagina 14 - ... world, the rest of the world is at the same time observing us, and that often we agree on what we see in each other. Does this then mean that my observations become real only when I observe an observer observing something as it happens? This is a horrible viewpoint. Do you seriously entertain the thought that without the observer there is no reality? Which observer? Any observer? Is a fly an observer? Is a star an observer? Was there no reality in the universe before 109 BC when life began?
Pagina xxvi - ... seriously discussed that I get into arguments outside the formal sessions (say, at lunch) whenever anyone asks me a question or starts to tell me about his "work." The "work" is always: (1) completely un-understandable, (2) vague and indefinite, (3) something correct that is obvious and self-evident, but worked out by a long and difficult analysis, and presented as an important discovery, or (4) a claim based on the stupidity of the author that some obvious and correct fact, accepted and checked...
Pagina xxvii - activity in the field" these days, but this "activity" is mainly in showing that the previous "activity" of somebody else resulted in an error or in nothing useful or in something promising. It is like a lot of worms trying to get out of a bottle by crawling all over each other. It is not that the subject is hard; it is that the good men are occupied elsewhere. Remind me not to come to any more gravity conferences!
Pagina xxvi - I am not getting anything out of the meeting. I am learning nothing. Because there are no experiments this field is not an active one, so few of the best men are doing work in it.
Pagina 224 - Experimental Gravitation: Proceedings of the International School of Physics "Enrico Fermi,
Pagina xxvii - ... worked out by a long and difficult analysis, and presented as an important discovery, or (4) a claim based on the stupidity of the author that some obvious and correct fact, accepted and checked for years, is, in fact, false (these are the worst: no argument will convince the idiot), (5) an attempt to do something probably impossible, but certainly of no utility, which, it is finally revealed at the end, fails (dessert arrives and is eaten), or (6) just plain wrong. There is a great deal of "activity...
Pagina 225 - Jennison, RC and Das Gupta, MK (1953). Fine structure of the extra-terrestrial radio source Cygnus 1, Nature, 172, 996-997.
Pagina 34 - B polynomials in w' of degree not so high as F : and then use G = 0 to make the coefficients of the various powers of w' polynomials in w of degree not so high as G. When this transformation is made, then r is the sum of two terms, each of which is the product of two polynomials in w and w ; hence r is itself a polynomial in w and w'.
Pagina 63 - Finally, the theory of the precession of the perihelion of the orbit of the planet Mercury...
Pagina 12 - The right hand side includes all that cannot be described so far in the Unified Field Theory, of course, not for a fleeting moment, have I had any doubt that such a formulation is just a temporary answer, undertaken to give General Relativity some closed expression.
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