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Veritasium -- How Special Relativity Makes Magnets Work.

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aetherist:

--- Quote from: SiliconWizard on April 14, 2022, 05:42:43 pm ---Wow. ::)
Also, this guy backs this up: https://www.infinite-energy.com/index.html

--- End quote ---
Low Energy Nuclear Reactions & Cold Fusion might have a future. Hot fusion duznt.

aetherist:

--- Quote from: YurkshireLad on April 14, 2022, 07:24:27 pm ---
--- Quote ---It appears that the red shift can be accounted for in a more reasonable manner by assuming that each train of light waves during its journey through space will undergo a slight expansion
--- End quote ---
So he just made it up then.
--- End quote ---
Krafft had a brilliant idea here. I dont know why he mentioned a train of light, he should have said that each photon would be stretched.

Einstein's slowing of light near mass, compresses a photon during approach to mass, & stretches a photon during departure, ie it has a nett zero effect on redshift (but gives a small redshift near Earth)(if going away from the Sun).

hamster_nz:

--- Quote from: aetherist on April 14, 2022, 07:52:48 pm ---Einstein's slowing of light near mass...

--- End quote ---

I expected you to pick your words more carefully...

aetherist:

--- Quote from: hamster_nz on April 15, 2022, 12:43:44 am ---
--- Quote from: aetherist on April 14, 2022, 07:52:48 pm ---Einstein's slowing of light near mass...
--- End quote ---
I expected you to pick your words more carefully...
--- End quote ---
I am not sure of Einstein's exact wordage, ie the English translation. But in essence it was that light slows near mass. I dont think that he said photons. Or em radiation.

https://en.wikipedia.org/wiki/Shapiro_time_delay
Wikileaks................ The Shapiro time delay effect, or gravitational time delay effect, is one of the four classic solar-system tests of general relativity. Radar signals passing near a massive object take slightly longer to travel to a target and longer to return than they would if the mass of the object were not present. The time delay is caused by spacetime dilation, which increases the time it takes light to travel a given distance from the perspective of an outside observer. In a 1964 article entitled Fourth Test of General Relativity, astrophysicist Irwin Shapiro wrote:[1]

Because, according to the general theory, the speed of a light wave depends on the strength of the gravitational potential along its path, these time delays should thereby be increased by almost 2×10−4 sec when the radar pulses pass near the sun. Such a change, equivalent to 60 km in distance, could now be measured over the required path length to within about 5 to 10% with presently obtainable equipment.

Throughout this article discussing the time delay, Shapiro uses c as the speed of light and calculates the time delay of the passage of light waves or rays over finite coordinate distance according to a Schwarzschild solution to the Einstein field equations.


Einstein’s repudiation of his own theory of relativity after 1920 ------ Peter Sujak

In Einstein’s 1913 paper [1, V4, D13, p.153] ‘Outline of the generalized theory’ we can read –

“I have shown in previous papers that the equivalence hypotheses leads to the consequence that in a static gravitational field the velocity of light c depends on the gravitational potential. This led me to the view that special theory of relativity provides only an approximation to reality; it should apply only in the limit case where differences in the gravitational potential in the spacetime region under consideration are not too great”.

As the gravitational potential is changing in space from a star to a star, from a galaxy to a galaxy so according to the 1913 paper velocity of light in vacuum is no longer the constant and is changing (standard supposition of physicist before 1905). This means in fact an abolition of the first principle of STR which is based on firm proclamation that the velocity of light is the ultimate and constant velocity in the vacuum of the void space, that no carrying substance of the light propagation exists and that nothing can influence on the ultimate velocity of the light in the vacuum.

hamster_nz:

--- Quote from: aetherist on April 15, 2022, 06:27:46 am ---
--- Quote from: hamster_nz on April 15, 2022, 12:43:44 am ---
--- Quote from: aetherist on April 14, 2022, 07:52:48 pm ---Einstein's slowing of light near mass...
--- End quote ---
I expected you to pick your words more carefully...
--- End quote ---
I am not sure of Einstein's exact wordage, ie the English translation. But in essence it was that light slows near mass. I dont think that he said photons. Or em radiation.

--- End quote ---

I was more thinking about "slowing" rather than the "light". I just thought you would have used "light takes longer to travel" as the speed of light in vacuum is a constant.

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