• The Foundation of Future, Einstein-Free Physics

    From Pentcho Valev@21:1/5 to All on Tue Dec 29 12:34:11 2020
    The texts below unwittingly lay the foundation of future, Einstein-free physics. Speed and frequency of light vary proportionally, wavelength (speed/frequency) is constant. This constancy, generalized over all possible scenarios, will be the fundamental
    axiom of the new physics:

    University of Illinois at Urbana-Champaign: "Consider a falling object. ITS SPEED INCREASES AS IT IS FALLING. Hence, if we were to associate a frequency with that object the frequency should increase accordingly as it falls to earth. Because of the
    equivalence between gravitational and inertial mass, WE SHOULD OBSERVE THE SAME EFFECT FOR LIGHT. So lets shine a light beam from the top of a very tall building. If we can measure the frequency shift as the light beam descends the building, we should be
    able to discern how gravity affects a falling light beam. This was done by Pound and Rebka in 1960. They shone a light from the top of the Jefferson tower at Harvard and measured the frequency shift. The frequency shift was tiny but in agreement with the
    theoretical prediction. Consider a light beam that is travelling away from a gravitational field. Its frequency should shift to lower values. This is known as the gravitational red shift of light." https://courses.physics.illinois.edu/phys419/sp2011/

    Albert Einstein Institute: "One of the three classical tests for general relativity is the gravitational redshift of light or other forms of electromagnetic radiation. However, in contrast to the other two tests - the gravitational deflection of light
    and the relativistic perihelion shift -, you do not need general relativity to derive the correct prediction for the gravitational redshift. A combination of Newtonian gravity, a particle theory of light, and the weak equivalence principle (gravitating
    mass equals inertial mass) suffices. [...] The gravitational redshift was first measured on earth in 1960-65 by Pound, Rebka, and Snider at Harvard University..." http://www.einstein-online.info/spotlights/redshift_white_dwarfs.html

    "To see why a deflection of light would be expected, consider Figure 2-17, which shows a beam of light entering an accelerating compartment. Successive positions of the compartment are shown at equal time intervals. Because the compartment is
    accelerating, the distance it moves in each time interval increases with time. The path of the beam of light, as observed from inside the compartment, is therefore a parabola. But according to the equivalence principle, there is no way to distinguish
    between an accelerating compartment and one with uniform velocity in a uniform gravitational field. We conclude, therefore, that A BEAM OF LIGHT WILL ACCELERATE IN A GRAVITATIONAL FIELD AS DO OBJECTS WITH REST MASS. For example, near the surface of Earth
    light will fall with acceleration 9.8 m/s^2." http://web.pdx.edu/~pmoeck/books/Tipler_Llewellyn.pdf

    See more here: https://twitter.com/pentcho_valev

    Pentcho Valev

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  • From AndreK@21:1/5 to Pentcho Valev on Mon Feb 8 23:27:58 2021
    On 29.12.2020 21:34, Pentcho Valev wrote:
    A combination of Newtonian gravity, a particle theory of light, and the weak equivalence principle (gravitating mass equals inertial mass) suffices.

    There are a few cases where the old physics, preservation of energy and momentum are enough to describe the result of an experiment. The same
    result is derived by the more general relativity.

    But if it gets more complicated the calculus of relativity is required.
    Geo navigation systems require accurate and synchronized clocks. The
    atomic clocks of the satellite are successfully corrected for
    relativistic effects. Engineers get money for that and people can use
    geo navigation.

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