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Frequency tells us the state of matter independent of what any reference thinks it sees.

any chances that what we "see" as light speed, or speed of light to be no "speed" at all? What if by geometry, photon could be, avoiding time influence, and the traveling thing is the particle photon taking a ride on a geometrical wave of probability? Could be that space is at C while light is just taking a ride along with it? Or there's anything that undoubtedly, states: Light speed is a speed because...?

Undoubtedly, it is clear that Gravity is not due to masses

Quote from: pasala on 09/08/2020 17:41:33Undoubtedly, it is clear that Gravity is not due to massesNot clear at all, actually.

It is a field present on the surfaces of the masses, definitely, not all the masses.

What is the basic difference in between, space time curved by Sun and other planets.

Quote from: pasala on 15/08/2020 16:09:29What is the basic difference in between, space time curved by Sun and other planets. The Sun has far, far more mass than the planets. That's why the planets orbit it and not the other way around.

Is it mass alone, not the curved space time.

01 It is true that you are in a gravity field.

No. It's just that you can't distinguish acceleration in an elevator from being stationary on a planet's surface. They are not literally 100% the same thing. In order to feel "gravity" in an elevator in free space, you have to be accelerating. You don't have to move at all to feel gravity on the surface of a planet.

The curvature of space is directly proportional to the mass.

I think you are in out of mood.

I am talking about free fall in a gravity field and the free fall in space. But you are talking about acceleration and gravity.

Let us Imagine that you are in a closed elevator and it is accelerating downwards. 01 It is true that you are in a gravity field.02 You are moving along with the elevator, in other words you are in a free fall.03 Though you are in a strong gravity field, you are escaping gravity.04 Here, all other objects moving along with you are also in free fall.

What this space fabric consists of.

What this space fabric consists of.One doesn't have to consider space-time as being made of anything other than space and time in order for relativity to work.

Quote from: Kryptid on 16/08/2020 06:40:58 What this space fabric consists of.One doesn't have to consider space-time as being made of anything other than space and time in order for relativity to work.When we talk of anything, it must be specific or otherwise the theory is incomplete or insufficient. "Matter tells space time how to curve and curved space time tells how to move". Matter tells what to curve or how this curved space time interacts with matter and tells it to move. In general relativity, gravity is described in terms of the curvature of space time. For example, imagine a sheet of rubber with grid lines like graph paper, suspended horizontally so that it forms a flat surface. With no weight on it, the grid has straight lines and right angles, corresponding to the "flat space" of Euclidean geometry..If you place a ball on the surface, the rubber sheet stretches around it. The curvature of the grid increases as it gets closer to the ball. This corresponds to the curvature of space-time near a massive object. If the bowling ball is placed at the centre of the rubber sheet, it will curve or distort the sheet. If we roll a marble piece in this curved path, it will go round the bowling ball.This description is ok for non-Euclidean geometry. Well, it is true that curved space time is nothing but Gravity. We know that Gravity is keeping the planets in orbit around the sun and also is keeping the moon in orbit around Earth. The gravitational pull of the moon pulls the seas towards it, causing the ocean tides. Einstein also proposed number of effects, time dilation, light bending i.e.,Without complete description of what is working like space fabric, being curved by mass, theory will not go further, ends at the one stage or the other. This is what happening and we are taking Newton’s inverse square law as base.This is the reason, still “what exactly is gravity” a mysterious one.YoursPsreddy

Then why things fall? It would also be answered by the same answer that explain, not what gravity is, also not what gravity isn't. It would be answered by explanation that excludes it's very existence from the board.