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What is the Action of Gravity on Light Rays?

WELCOME to this Gravimotion's Website Page.
Gravimotion is a logical (not philosophical) alternative to theoretical physics.
Gravimotion's main feature is to make sense!

Please forgive, when awkward, the English of this page. English is not the author's native language.

The question should be reworded in three questions as follows:

  1. How does gravity affect the path of light rays?
    Einstein answered mathematically that question with extreme precision.
  2. How does gravity modify the intensity of light?
    According to scientists it seems that long distances rather than gravity modify the intensity of light.
  3. How does gravity affect the frequency of light?
    This question is the object of this web page.

And here is how gravity affects the frequency of light.

In the graph below the blue circle represents a huge heavy quasar, which emits from its surface light rays at relatively high frequency F1, blue in color.
In that graph the gravity field, or Einstein's space-time curvature surrounding the quasar, is illustrated with an imaginary, yet now familiar to all, grid of stretched lines.

On this illustration a light ray trough gravity is redshifted

Next we choose the distance Dqe between the emitter of the blue light and the observer on Earth to be constant.
In other words there is no relative motion between the quasar and Earth that would modify the frequency F1.

In this situation the space-time-curvature (or gravity) surrounding the quasar shifts the frequency F1 toward the red as explained in the next section.
Note that the frequency shift due to Earth's own gravity is not taken in consideration as being negligible with respect to that of the quasar.
Also should light of red frequency be emitted on Earth an observer on the quasar would see a blue frequency shift!
As such this frequency shift is also specifically labeled as either gravitational redshift or gravitational blueshift.

And here is why gravity shifts frequency.

  • First here is an intuitive explanation of frequency shift induced by gravity.
    While escaping it, light has to fight the gravitation field or force of gravity.
    Just as a stone thrown from the ground up into the sky looses speed or energy, light waves emitted from the surface and away from it must loose energy.
    And light rays happen to loose energy not through lower speeds but through lower frequencies or a shift toward the red frequency, which is lower than the blue frequency.
  • And here are a few enlightening details about the frequency of light while traveling through space.
    On the above graph the shift in frequency occurs while the light travels through the quasar’s gravity field only.
    By contrast when and where the light travels far away from any source of gravity its frequency remains unchanged.
    This reminds Newton's first law, in which the words unchanged frequency would have taken the place of uniform motion. Motion of matter and translation of light are in harmony through their respective energies and not through their respective speeds as chosen by Einstein!
  • Now let us justify the frequency shift induced by gravity using scientific arguments.
    In accordance with the Doppler effect, just as an emergency vehicle siren pitch changes while moving by, light frequency is modified by the relative motion of its source with respect to the observer.
    While at it electromagnetic waves is the scientific name given to light rays, and the later occupies only a very small spectrum of the former.
    1. Whether accelerated or not and through the Doppler effect, motion has the property to modify the frequencies of electromagnetic waves.
    2. A gravitational field at rest is equivalent to an accelerated motion.1
      By the way the word gravimotion that fuses motion into gravitation embodies this equivalence.
    3. Putting items 1 and 2 together, the frequency of an electromagnetic wave traveling through a still gravitational field is modified through the Doppler effect that that field's accelerated motion equivalence produces.

The implications of such an interpretation are far reaching

A still gravity field producing a red shift as illustrated above, puts into question the alleged expansion of the universe!
And the dark matter necessary for that expansion is in jeopardy along with it.
And in question along with the alleged expansion of the universe is evidently the concept of bigbang, which goes hand in hand with it.

Warning

The above interpretation, in which gravity produces a frequency shift in such a way that it puts into question the expansion of the universe is definitely not in line with physics' teachings.
Here is why:
  1. The establishment of bigbang "theory"
    In the early 1900's, and after the Einstein's general relativity, Georges Lemaître came up with the Big Bang theory.
  2. The "reality" of bigbang
    Approximately at the same time, Hubble, an astronomer, discovered that far away galaxies produce a red-shift.
    Even though Hubble was not affirmative himself about it, physicists declared the Universe was expanding, and that fitted perfectly the big band theory!
    If we go back in time, if we reverse the expansion, physically discovered in the sky by Hubble, we rejoin "physically" the "theoretical" bigbang.
    From "theory" bigbang becomes fact verified "experimentally".
  3. As a side effect the expansion of the universe becomes fact
    Because bigbang truly occured in the past, the expansion of the universe becomes also a "fact".
So in physics (and we laypersons read that over and over in the scientific yet for everybody press) the red shift observed from distant galaxies is the sign of an expanding universe because it fits bigbang and vice versa.

The possible interpretations of the red frequency shift

Yet in reality any of the following phenomenon could cause the observed red frequency shift:
  • Relative motion (which by the way could be interpreted as contraction rather than expansion)
  • Shrinking of celestial bodies
  • Electromagnetic effects
  • Last but not least, gravitational redshift

Gravimotion's interpretation is pure elegance

Interpreting this frequency shift as being induced by gravity is pure elegance though.
  • Contingencies attached to physics' alleged universe expansion that are gravity's adverse effect and the invention of dark matter all vanish into thin air in this gravitational red shift.
  • Most impressive, in that interpretation, gravity's adverse effect is turned into an ally!
And that matches Nature's harmony in all its splendor.
Experimental observation becomes crystal clear again, things make sense.

Gravity induced frequency shift comes naturally to mind within gravimotion's thinking environment, in which gravitation is metamorphosed into motion.
For a glimpse at gravimotion, and how it makes sense while not questioning physics mathematics, visit the site: http://alternates-to-physics.info/
Or read all about the gravimotion mechanism... Click and get the book advertised on the right...
Footnote:
Eisntein in person wrote all about this equivalence!
Click and read Einstein's own words; read up to the fourth paragraph included.
Note that Einstein, in his thought experiment, identifies accelerated motion to gravitational field, not the other way around.
And doing so Einstein implies that "accelerated relative motion" is elusive, that gravitational fields only are real!
As a matter of fact Einstein claimed that a roofer falling of the roof is not accelerated, because he feels no force!
Yet and on the contrary, one sees accelerated motion when an object is in free fall and one doesn't see any gravitational field!
As such, elemental observation suggests instead that motion is real and that gravitational fields are a construct of the human mind!
And in spite of his own interpretation, Einstein's chest, which is pulled by a rope, is physically in motion and definitely not a gravitational field!
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