1

New Theories / Re: What exactly is gravity?

« on: 28/05/2021 18:01:39 »

In fact, as I was studying or gathering information about Gravity, it happened to go by the thinking of great Greek philosophers. 

In their observation:
01   Movement of celestial bodies is not affected by Gravity.
02   Celestial bodies are following nondescending trajectories.
03   Aristotle also opined that these bodies are following natural motion unaffected by external
        force.
04   Some of these philosophers held that a body moving at constant speed requires a
        continuous force acting on it and that force must be applied by contact rather than
        interaction at a distance.

This is the foundation for modern gravitational theory.  Newton argued that the movements of celestial bodies and the free fall of objects on Earth are determined by the same force.

What ever said by Newton is 100% correct and valid.  Gravity  is a force and it is giving you weight on Earth.  Same force is giving movement to the celestial bodies.

In space to measure mass we have to use inertial balance.  If we attach an object to the spring of the inertial balance, the object vibrates and his vibration is measured as mass. What is causing this vibration.  If there is no flow of Gravity, there is no vibrations at all.  Vibrations generated by a Mass is different and it works differently.

Einstein thought experiment, gravity in space ship, in deep space, clearly gives us an idea that gravity is a field present on Earth and it can be packed and moved.  So, it clearly tells us that Gravity is a field  present on Earth like a water pond.  If you go deeper and deeper into the pond, it gives you weight.  If you are on the surface, you are in free fall. 

Suppose, if there is flow of water, rivers, canals, in such case, there is a force of water and even if you are at rest, it forces you to move along with it.   Similarly, gravity field is moving like water in the river, in the space, causing celestial bodies to move. 

As assumed by Newton, same force giving you weight on Earth is moving the celestial bodies.  Here Inverse square law is different, for the present, I am not going deep into that one.

Light coming from distant galaxies is often bent by the presence of massive galaxies (or galaxy clusters) between the distant galaxy and us. This can produce rings, arcs are multiple images.
It clearly tells us, movement of gravity within galaxies.  We have already discussed, unless there is a change in the elevator, up, down there is no light bending at all.  Light taking rings, arcs clearly tells us that there is movement of gravity field.  What else proof is needed.

From this, it is clear that celestial bodies are not moving naturally, inertia of motion.  But it is due  to movement or force of gravity that they are moving or inertia.

Another important point, in my view, yet to be discussed is, why celestial bodies are in non-descending trajectories.  Ok, for better visualization, assume that you are in a river and water is flowing fast, it takes you along with it.  In case for any reason, it slows down, slowly you will start moving down.  It all depends on the density of  the Gravity field in space.  If the density start weakening, slowly, planetary bodies start descending.  If the density weakens further and further, planetary bodies descends further.  Finally, planetary bodies, descends and goes out of control and turns out as asteroids.

  Yours
Psreddy

2

New Theories / Re: What exactly is gravity?

« on: 25/05/2021 18:09:38 »

01  It is true that as long as the elevator is on the ground, light beam moves out from one hole to the other in the opposite direction.

Not so. If the elevator is on the ground it is in a gravitational field and light will bend.

02  Unless there is a change, up or down, there is no change or something is changing and it is scientifically proved only.

No, there doesn’t need to be a change, just a static gravitational field.

Based on this information that:
It is only when the elevator accelerates forward that light beam is moving down.  It is true that,
basing on these information that Einstein predicted bending of light by Gravity.  So as per the above information I had predicted that Gravity is moving down within the elevator and bending light.  Further it is also clear that it is only when the elevator accelerates, clearly indicates that unless Gravity field changes or moves there is no change in the movement of light.

This is a misrepresentation of Einstein’s thought experiment and of actual experiments.

I had written above hypothesis based on Einstein thought experiments only.  Those information is collected from the books only.

Once again, I reiterate that I never misrepresented the facts. 

Yes you have misrepresented, because Einstein never said that in his thought experiments.
Show the pages from the books or this will be locked.

Please go through Forbes, this is why Einstein knew that gravity must bend light:
https://www.forbes.com/sites/startswithabang/2019/04/26/this-is-why-einstein-knew-that-gravity-must-bend-light/?sh=478b1e522ef6

3

New Theories / Re: What exactly is gravity?

« on: 25/05/2021 14:59:29 »

false-equivalence-race-hounds.png (54.27 kB . 300x300 - viewed 4044 times)


P.S. - In terms of Favouritism, 1 & 2 are Equal...
But that Does Not mean they are absolutely the Same.
✌️
(Equivalence)

What ever it may, thanks for comparing with Great man.  I am after all a drop of water. 

4

New Theories / Re: What exactly is gravity?

« on: 25/05/2021 14:56:08 »

It is known and proved fact that Sun is rotating on its axis. 

Agreed

Ok, when Sun is rotating:
"Mass tells space time how to curve and curved space time in turn tells mass how to move".

That has nothing to do with the sun rotating

So, naturally curved space or Gravity field of Sun is also moving.  What  else proof is needed.  Light bending clearly indicates this.

You are misrepresenting the equivalence principle and Newton.
Provide proof that the gravitational field of the sun is moving and this is responsible for light bending, or we will lock this topic.

See, I had presented mine hypothesis.  For that present theories on Gravity, Inverse square law or curved space time, are also hypothesis only.  Of course, it is not good to compare with those theories, but I had presented mine idea. 

For that:
01  It is true that as long as the elevator is on the ground, light beam moves out from one hole to the other in the opposite direction.
02  Unless there is a change, up or down, there is no change or something is changing and it is scientifically proved only.
03   If the elevator accelerates forward, light beam bends according to acceleration.

Further ;  "mass tells space time how to curve and curved space tells mass how to move".

Based on this information that:
It is only when the elevator accelerates forward that light beam is moving down.  It is true that,
basing on these information that Einstein predicted bending of light by Gravity.  So as per the above information I had predicted that Gravity is moving down within the elevator and bending light.  Further it is also clear that it is only when the elevator accelerates, clearly indicates that unless Gravity field changes or moves there is no change in the movement of light.

In fact, as per Einstein, mass of the Sun tells space time how to curve and in turn this curved space time once again tells mass how to move. 

I had written above hypothesis based on Einstein thought experiments only.  Those information is collected from the books only.

Once again, I reiterate that I never misrepresented the facts.  It is hypothesis only based on other theories, practically, for me it is impossible to prove it.

Ok, if you are not satisfied, you can take any action as you like.

Thanking you,

Yours
Psreddy

 

5

New Theories / Re: What exactly is gravity?

« on: 23/05/2021 19:27:16 »

As long as the elevator is at rest or stationary on the ground, light beam moves out from  one hole to other hole.

In the thought experiment the elevator is on the ground and so it is in a gravitational field. The light will not go out of the other hole, it will hit the wall below the hole.
You do not need a changing gravitational field to bend light.
In the experiment where the gravity of the sun bends starlight the sun’s gravitational field does not change.

Once again I reiterate that these are Einstein  thought experiments only.  It is known and proved fact that Sun is rotating on its axis. 

Ok, when Sun is rotating:
"Mass tells space time how to curve and curved space time in turn tells mass how to move".

So, naturally curved space or Gravity field of Sun is also moving.  What  else proof is needed.  Light bending clearly indicates this.

6

New Theories / Re: What exactly is gravity?

« on: 23/05/2021 19:12:04 »

Ok, if the space ship accelerates from ISS and if there is gravity due to acceleration, I am sure that I will accept that mine hypothesis is wrong.  What is there.

You accept that in the ISS the astronauts are in freefall and feel no gravitational force, this will be the same in a spaceship alongside.
If that spaceship accelerates at 9.8m/s² the astronauts will feel a force pushing them towards the back of the ship and that force will be the same as that due to gravity on earth. It is not gravity (which is due to the attraction between masses) but it is equivalent to gravity.
This has been proven by astronauts travelling to and from the ISS.

Equivalent to gravity or something is not gravity.  As said by Newton, same medium is present on Earth as well as in space.  It is the density of this medium that matters.

7

New Theories / Re: What exactly is gravity?

« on: 23/05/2021 18:37:58 »

There is no strong nuclear force or weak gravity force, there is only one force.

How can that be the case when they behave so differently?

What ever you are saying is truth.  But I am talking about future.  In my view, not only Gravity, several other theories will be re-written in future.  It may take lot of time, still I am fully confident that it will be proved that only "one force" exists.

8

New Theories / Re: What exactly is gravity?

« on: 23/05/2021 18:24:08 »

Please remember, these are not mine thought experiments, but Einstein’s only. 

Now if you allow a light beam from outside, through a hole of elevator and observe where it struck, it all depends on the acceleration and velocity of the  elevator though source is relative.  In other words, unless there is a change in elevator, up, down nothing change can be deducted.
1.   If there were no relative motion or relative acceleration the light beam would appear to
         travel straight across.
2.   If there were relative velocity the light beam would move in a straight line, but would be
         displaced from going directly across.
3.   If there were relative acceleration, the light beam would follow a curved path, relative to
        acceleration.

By these thought experiments that Einstein came to an idea that Gravity bends light.  But it is surprise to see:
01   As long as the elevator is at rest or stationary on the ground, light beam moves out from
        one hole to other hole.
02   It is only after movement or change in the elevator, acceleration or velocity that light is
        bending.
03   But, it is not clear how Einstein came to a conclusion that gravity bends light.

I would like to propose:
From the Einstein thought experiments itself it is clear that light is bending only after change or movement in the elevator.  It is true that as long as the elevator is on the ground, light beam moves straight, from one hole to the other hole. 

As the elevator attains acceleration, what is causing or affecting light beam to bend.  This is not happening in normal course when it is on the ground.  Well, scientifically it is proved that something is changing when the elevator is accelerating. 

It is also proved that even in closed elevator Mr. X’s weight continues to be 75 kgs only as that of on Earth.  It is also scientifically proved that some thing is changing in the closed elevator when it moves, which I propose it as “Gravity field”.   As the elevator accelerates forward, gravity field density is increasing at the bottom.  Gravity while moving downwards is bending the light. 

Basically, Gravity is not bending light, it is the light beam flowing or moving according to the flow or movement of Gravity.  It is an indication of change in the Gravity field. 
 
It is proved that starlight passing near a significant mass, such as the Sun, were bent by gravity.

If the Gravity field of Sun is at rest or stationary, starlight is not bent, moves out straight.  Since Gravity is moving, path of the light is changed. 

Light bending is only an indication of movement or change of Gravity field.

Yours
Psreddy

9

New Theories / Re: What exactly is gravity?

« on: 23/05/2021 15:22:51 »

All the above posts about "What is Gravity", make me wonder whether a similar question could be asked, such as:

What is the "Strong Nuclear Force".

This "force", as far as I understand it, makes protons in the nucleus of an atom gather together.  Despite the protons' mutual positive charges.  Which ought electrically to repel them from each other, and make them fly apart.

This "Strong " force seems to be accepted as a "Fundamental Force of Nature".  Without needing an
explanation.

If this is so, can't the "Gravitational"  force , which makes atoms gather together, also be accepted as a "Fundamental Force of Nature".   Without needing an explanation?

Why can't we  treat "Gravity" like the "Strong Force" -  ie, as just the way things are in the Universe?

What you are saying is 100% correct.  There is no strong nuclear force or weak gravity force, there is only one force.  The truth will come out if science develops.  Let us wait for the same.

10

New Theories / Re: What exactly is gravity?

« on: 23/05/2021 15:08:57 »

Forget light for a moment and consider a tennis ball.
Spaceman in no gravitational field (or freefall) feels weightless. If they push a tennis ball away from them it will go in a straight line to the opposite wall (as would light).
Now the spaceship starts to accelerate, the ‘bottom’ wall of the ship moves up and pushes against the feet of spaceman so he has to use leg muscles to stand; if he now pushes the tennis ball away it will fall towards his feet, exactly the same as if he were standing on earth in a gravitational field. Acceleration and gravity are equivalent.

Here, Einstein's idea's are moving around Newton's inverse square law.  The space ship is far away from the mass, deep in space, still there is gravity, how?.  Finally, he came to know a conclusion that it may be due to acceleration.  This is one  of the incorrect ideas of Einstein.

Now a days, science developed a lot.  We are sending our space ships to Moon and also coming back to Earth.  For that our space ships are going to ISS regularly.  Initially, at the time of departure from Earth, things inside the cabin of the space ship behaves differently, and it is not due to acceleration 9.81 m/s.  In case, if the space ship accelerates less then 9.81 m/s, in such case, there is a chance for the space time of the cabin to inter act with the outside space time and thus gravity coming down.  If the space ship accelerates more than 9.81 m/s gravity field inside the space ship remains intact.   

Now, let us assume that space ship started from the ISS, inside the cabin, if you push the tennis ball it will not fall to the the ground but move straight.  Cabin of the spaceship is locked in a non-gravity, doesn't mean that there is no gravity but it is acting differently or weak gravity.  The crew inside the cabin need not use muscle power to stand. 

In my view, Gravity is a field present on Earth. A part of this field is packed in the cabin.  However it is surprise to see, this field in a small area such as cabin giving same results.  Gravity never increases due to acceleration and there are no instances or proof as such.

Ok, if the space ship accelerates from ISS and if there is gravity due to acceleration, I am sure that I will accept that mine hypothesis is wrong.  What is there.

11

New Theories / Re: What exactly is gravity?

« on: 21/05/2021 17:20:47 »

You are continuously saying that there is no gravity or simple inside the elevator.  Please remember it is not mine idea, but Einstein thought experiment only.  I think you are contradicting Einstein thought experiment.

No, Einstein did not say that there is gravity inside of an accelerating elevator. What he said is that you can't tell whether the force you feel inside of the elevator is due to it accelerating upwards or from gravity (assuming you have no way to make observations outside of the elevator). He did not say that these two things are identical. Again, you are misunderstanding the equivalence principle.

but how it bends light, only when the elevator accelerates.

I already answered that.

Ok, then how Einstein deducted that Gravity bends light.

12

New Theories / Re: What exactly is gravity?

« on: 21/05/2021 17:18:24 »

When the elevator accelerates forward, frame of the elevator, literally, lifts the gravity field and gravity concentration at the bottom increases. 

So, Finally we can draw a conclusion that Gravity is a field present on Earth.

No, the gravity field is not lifted nor does the gravity concentration increase, you can demonstrate that in a rocket where the field strength decreases with height.
What you are describing here does not show that a gravity field exists on earth.

Let's modify slightly the scenario and place the source of light and a sesnor in a stationary frame (e.g. on the 1st floor), while removing the side walls in that elevator - so that the light will pass through the elevator, which accelerates upwards and reach the stationary sensor on the opposite side:

The whole point of Galileo’s ship and Einstein’s elevator experiments is that they are closed systems without information from outside. It doesn’t matter whether the source or sensor are outside, you are using a different reference frame to the elevator.
The elevator needs to be either in a gravitational field and not moving or in no gravitational field and accelerating; in both cases the light beam will bend. Unfortunately, @pasala is mixing the 2 cases and causing himself confusion.

Unfortunately, it is yourself confusing members. 
You are saying, Light beam will bend:
"The elevator needs to be either in a gravitational field and not moving or in no gravitational field and accelerating; in both cases the light beam will bend".

You are proposing that in a gravitational field, if the elevator is at rest then only light beam will bend.  If that is true, what is there need for Einstein thought experiments.  Einstein thought experiments propose that if the elevator attains acceleration, equal to acceleration light beam will bend, in case, if it attains velocity, equal to  velocity light beam will bend in opposite direction.

Further you have also proposed that in no gravitational field, acceleration bends light.  I don't think there is any such proposal by Einstein.  I think you are equating acceleration to gravity.  Ok, if that is true, if a space ship accelerates from Moon or from a space station, do acceleration equates gravity.

Well, Galileo's equivalence is different and it is in between, closed room of a ship to Earth.  Please go through it.  No where, much focus is laid on this equivalence.  What Galileo says, in a closed room of a ship, if the sailing is smooth, he could not differentiate whether he is in a ship sailing or on Earth.  It clearly tells us that Earth is closed. 

This is the core idea behind relativity, and is the same reason why we don’t feel our planet’s movement around the sun, or our solar system’s movement through the galaxy.

Yet we don't accept that Earth is a closed one.  If we say that doors and windows are not appearing, it is our incapacity and inefficiency to identify it.

Einstein equivalence is simply a comparison, saying that there is also equivalence. 

13

New Theories / Re: What exactly is gravity?

« on: 21/05/2021 16:30:59 »

When the elevator accelerates forward, frame of the elevator, literally, lifts the gravity field and gravity concentration at the bottom increases.

There is no gravity in the elevator (at least not beyond the extraordinarily weak field produced by the elevator's mass). You are misunderstanding the equivalence principle.

You are continuously saying that there is no gravity or simple inside the elevator.  Please remember it is not mine idea, but Einstein thought experiment only.  I think you are contradicting Einstein thought experiment.

As said by Einstein, if gravity is bending light, how and where it is coming.  In normal course  when the elevator is at rest on the ground there is strong gravity.  But it is not bending light.  It  is only after acceleration, please remember it is also as per Einstein, that gravity is bending light. 

It is surprise to see, how Einstein deducted that Gravity is bending light.  There is Gravity, when the elevator is at rest on the ground and also when it accelerates, but how it bends light, only when the elevator accelerates. As per Einstein, Gravity is bending light, if it is so, what changes are taking place in gravity when the elevator accelerates. 

When the elevator accelerates forward, I am proposing that there are changes in the gravity field within elevator and it is bending light and  it is  just filling gap of Einstein thought experiment.

14

New Theories / Re: What exactly is gravity?

« on: 20/05/2021 17:06:15 »

Ok, when the elevator accelerates forward, basic question is what makes the light ray to accelerate downwards.

The fact that you are accelerating upwards is what makes the light ray look like it is accelerating downwards. It really is just that simple.

Based on these thought experiments, Einstein deducted that Gravity bends light.  Whether it  is simple or big, as per Einstein there is bending of light. 

What I am saying, if it is gravity, Einstein did not take up this one, to bend light it must move down, isn't it?.  When the elevator accelerates forward, frame of the elevator, literally, lifts the gravity field and gravity concentration at the bottom increases. 

So, Finally we can draw a conclusion that Gravity is a field present on Earth.

15

New Theories / Re: What exactly is gravity?

« on: 20/05/2021 16:38:07 »

I know, that it doesn't have too much with the gravity, but since we're talking about a scenario with the elevator, I wonder what would happen if we would modify it and place the sensor inside the moving elevator, while keeping the source of light in stationary frame. Let's say, that light is being emitted by the stationary source in the moment, when it is at the same level, as the sensor placed inside the elevator moving upwards - will the light reach that sensor or not? If it won't reach it, then the motion of elevator will become absolute/definitive, what will violate the relative nature of relative motion. If it will reach the sensor, then path of light will become curved upwards in the frame of stationary source. Which option is the valid one?

Actually, I had taken Einstein's thought experiment and it is not mine.  Ok, when the elevator accelerates forward, basic question is what makes the light ray to accelerate downwards.  Einstein indirectly conveyed that gravity is bending light.  In my view, since it is giving additional weight or pushing you back, it is gravity only.   By this we can draw a conclusion that Gravity is a field present on Earth.

Ok, you are talking different thing.  You are saying that, light source is relative to elevator and you also proposes to place a sensor inside the elevator and also says that the sensor is moving up.  As the elevator accelerates forward, by doing so, you want to measure the relativity.  It is a different idea.

Actually, I don't want to go deep into your point, since main subject, what exactly is gravity will be diverted. 

Really I am working very hard, going by Einstein thought experiments only, to prove or say what exactly is gravity.  If any body having idea on this may share their ideas.

16

New Theories / Re: What exactly is gravity?

« on: 19/05/2021 16:19:15 »

Mr ZerO,
As said by you, even myself at the end, felt that I must have dealt issues / theories one after one in detail. 

Ok, let us discuss about Einstein thought experiment which is base for all our discussion.
01   Let us take an Elevator, having holes on opposite sides.
02    Now, if you send a light ray from one hole, it will move out through the other one.

If the elevator accelerates forward, things will be different:
01   Here, source of light is relative to the elevator.
02   Though source of light is relative, light accelerates downwards according to the acceleration of elevator.

Here there are several important things to be discussed.  As long as the elevator is at rest on the ground, light ray moves out through the other hole.  When the elevator accelerates, what makes the light to bend and to accelerate downwards.   Here, we should not forget that we are doing all these things in a strong gravity field.  As long as the elevator is at rest on the ground, even in strong gravity field, light ray is moving straight. 

In fact, for this bending of light we are taking Gravity as reason.  So, to bend the light ray, inside the elevator, there must be change in the gravity field.  Ok in case if there is no change in gravity field what is bending light?.

This is another important point, I had already discussed at length.  When we lift the elevator, literally, we are lifting the frame only.  In turn, frame drags the contents there in including gravity field.  In turn gravity field density at the bottom start increasing, pushing you backward. 

This is the reason, if we accelerate the car forward, engine drags the frame and in turn frame drags the contents, including gravity field and in turn density of gravity field at the end increases giving you additional weight, pushing you backward.

01   Ok, in case of elevator, when it accelerates forward, what is bending light downwards. 
02   Please remember that this is Einstein’s thought experiment only.  At present we are of the
        opinion that gravity is bending light.
03   If it is Gravity, we are already in strong gravity.
04   Unless there is change in the Gravity field there is no scope for bending of light.
05   Finally, one must accept that it is the Gravity field moving downwards and bending light.
06    One must accept that Gravity is a field present on the Earth.
07   When the elevator accelerates, density of gravity field increasing at the bottom shows that,
        its density itself is the gravity. 
08   It also shows one of the important quality of moving from high to low.
09   From the space ship example, it is surprise to see, even in small area such as cabin gravity
        field can be packed and moved, Einstein equivalence clearly tells us that this gravity in
        small area is giving same results.

Unless there is a change in the position of elevator, up, down, left or right no effect can be noticed.  It is also scientifically proved that when the elevator accelerates forward something is changing.

Please remember that this is Einstein’s thought experiment only.  When we accept that Gravity is bending light, inside the elevator, one  must also accept that Gravity is moving downward.

Next we will discuss about gravitational lensing of light.

Yours
Psreddy

17

New Theories / Re: What exactly is gravity?

« on: 17/05/2021 17:24:13 »

Well, it is true that in any region distant from massive cosmic objects such as stars, space-time is uncurved.  Ok, If one were to probe spacetime in that region by sending out a ray of light or a test body, both the ray and the body would travel in perfectly straight lines.

However, all masses curves or distorts space time around them and light ray will follow geodesics   

Ok, let us study it with simple thought experiment of Einstein.
01   Let us take an elevator, having holes in opposite direction.
02   If you send a ray of light through one hole it will move out through the other hole.

Here there are several important points:
01   The elevator is in the strong gravity field and there is gravity inside elevator also.
02    Mr. X’s weight, who is inside the elevator continues to be 75 Kgs only.
03   When the ray of light is sent through one hole it moves out through the other hole.
04   It tells us, in normal course, irrespective of gravity, light travels in straight line.
05   Ok, suppose let us imagine that all the planets are in at rest or stationary, even if space time is curved near to the masses, light never bends.  There is no gravitational lensing at all.
06   Further we can also deduct that, space time where light is travelling, may be curved or uncurved, doesn’t matter, it moves in straight line.
07   It clearly tells us that, space time which we are taking as empty, may not be empty as well.
08   At present we are taking, if we place any mass, anywhere, in response it will curve the space time around it.
09   For me it is a big doubt, unless there is something, how a mass curves or distort space time.
10   Mass only alters or curves existing gravity field and mass has no capacity to create any gravity field.
11   If mass has the capacity to curve or create gravity by itself without outside support, planets need not be in a solar system. 

However things will change, If the elevator accelerates forward. 
01   Though the source of light is relative to elevator, light start bending or accelerating in opposite direction.
02   Here, it is true that light ray is moving in straight line as long as the elevator is at rest or stationary on the ground.  We should not forget that this is happening in a strong gravity.
03   If the elevator accelerates forward, the light ray accelerates downwards. Here also we can draw several important conclusions.
      a)   When the elevator accelerates forward, what makes light to bend. 
     b)   Here, at present we are taking it as Gravity bending light.
     c)   If we take it for gravity, it gives us best clue that as the elevator accelerates forward,
                gravity field is moving downwards.
     d)   Gravity field while moving downwards, density increases and gives additional weight.
     e)   What else proof is needed to prove that gravity is a field present on Earth
      f)   What else proof is needed to prove that it is the density of the gravity increasing at the
                bottom.
      g)   What else proof is needed to prove that this field is having important quality of moving
                from high to low, as it adjusts.
04   So, in normal course, if gravity is at rest or stationary, there is no bending of light at all.
05   As the elevator moves forward, gravity field is moving in opposite direction.  For this I had already given lengthy explanation, we are lifting frame only and in turn frame drags the contents including gravity.
06   So, light bending is an indication that gravity field is not at rest or stationary and is moving.

So, it is clear that light ray moves in straight line whether space time is curved or uncurved.  Ok, suppose if the Sun is at rest or stationary, curved space time  also will be at rest or stationary only.  Light coming from the other stars will not follow geodesics and will move out in straight line.

From the elevator example it is clear that unless there is a change, up, down, light is not taking any curves or bending.  Even in strong gravity field, if there is no change or movement light ray moves in straight line. 

Well, it is true that Sun is not at rest or stationary.  Sun is moving against its axis.  If Sun is moving, curved space time cannot be at rest or stationary, it is also moving.  Light ray coming from far reaching stars, if Sun is at rest, will not follow any geodesics, moves out in straight line.  Since curved space is moving, light ray is bent.

Yours
Psreddy

18

New Theories / Re: What exactly is gravity?

« on: 17/05/2021 06:12:53 »

In my view, Newton’s inverse square law is not correct. 

An inverse square law is the only way you can get a stable orbit.
So it's pretty clear that any deviations from it must be tiny.

As of now, inverse square law is the only way out for us.  Einstein's GR is incomplete, he could not say what is curved space time is, what it consists of, how it comes into existence, and how it is responsible for gravity.  For that  there is no perfect answer for "what exactly is gravity". 

What I am saying is, as there is no choice we have to go for inverse square law.

General relativity has passed every test that has been devised for it.  It incorporates the inverse square law. Are you clairvoyant? You seem to be in touch with the ghost of Einstein. Say hi from me and tell him he did a fantastic job.

It appears, you are doing very good job.  Keep it up.

19

New Theories / Re: What exactly is gravity?

« on: 17/05/2021 06:10:40 »

In my view, Newton’s inverse square law is not correct. 

As of now, inverse square law is the only way out for us.
What I am saying is, as there is no choice we have to go for inverse square law.

If it incorrect then we have a choice, we can go for what is correct.

Einstein's GR is incomplete, he could not say what is curved space time is, what it consists of, how it comes into existence, and how it is responsible for gravity. 

Just because you don’t understand what curved space time is and how it is responsible for gravity doesn’t mean others don’t understand it.
Rather than reject what you don’t understand you should make an effort to understand it.

Really, I accept that I don't know:
01  What exactly this curved space time consists of
02  In what way or how it is paving way for gravity

I am trying very hard to get the information, since it is the base to say, how gravity is keeping the planets in particular place and to maintain perfect line and length.

When you are saying that I don't, you must be having knowledge.  Please, it is my humble request as well, tell me what this curved space time consists, when it is responsible for gravity how it paves way for gravity.

You can make me to shut with perfect explanation as well.

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New Theories / Re: What exactly is gravity?

« on: 16/05/2021 18:16:54 »

In my view, Newton’s inverse square law is not correct. 

An inverse square law is the only way you can get a stable orbit.
So it's pretty clear that any deviations from it must be tiny.

As of now, inverse square law is the only way out for us.  Einstein's GR is incomplete, he could not say what is curved space time is, what it consists of, how it comes into existence, and how it is responsible for gravity.  For that  there is no perfect answer for "what exactly is gravity". 

What I am saying is, as there is no choice we have to go for inverse square law.