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Quote from: Thebox on 07/03/2017 20:12:04An impossibility, positive v positive = expansion not contraction.It's not an impossibility, it's general relativity. Check out the stress-energy-momentum tensor that "that describes the density and flux of energy and momentum in spacetime". It's the energy-density gradient that makes light curve and matter fall down. Also see the Einstein digital papers: "the energy of the gravitational field shall act gravitatively in the same way as any other kind of energy".

An impossibility, positive v positive = expansion not contraction.

Quote from: JohnDuffield on 07/03/2017 21:29:37Quote from: Thebox on 07/03/2017 20:12:04An impossibility, positive v positive = expansion not contraction.It's not an impossibility, it's general relativity. Check out the stress-energy-momentum tensor that "that describes the density and flux of energy and momentum in spacetime". It's the energy-density gradient that makes light curve and matter fall down. Also see the Einstein digital papers: "the energy of the gravitational field shall act gravitatively in the same way as any other kind of energy". This is simply not true and Mr. Duffield knows it. Of course, this kind of false statement is exactly what the moderators of this forum seem to appreciate.The stress-energy tensor is on one side of the Einstein Field Equation, on the other side is the spacetime curvature. It is the spacetime curvature that determines the movement of bodies through spacetime, not any gradient.

Spacetime curve is a 2d explanation of a 3d spacetime gradient.

Quote from: GoC on 08/03/2017 15:48:16Spacetime curve is a 2d explanation of a 3d spacetime gradient. Odd that it's represented by 4D tensors. Or maybe you're wrong.

Quote from: PhysBang on 11/03/2017 16:22:34Quote from: GoC on 08/03/2017 15:48:16Spacetime curve is a 2d explanation of a 3d spacetime gradient. Odd that it's represented by 4D tensors. Or maybe you're wrong.The universe is 3d and motion. Of that statement it is unlikely that I am incorrect.Energy is of space and not mass. Space energy moves electrons. There is a dilation of energy to the center of mass. Energy of a frame is measured by a clock. A BH has no energy but it does have kinetic properties. Your tenser is just a gradient dilation of fundamental energy. Light cannot reach a black hole because it is bent around a BH. Space energy is dilated to the max around a BH. Mass is the kinetic form of energy. There is always a ratio between PE and KE measured by a clock.

Quote from: GoC on 13/03/2017 17:27:33Quote from: PhysBang on 11/03/2017 16:22:34Quote from: GoC on 08/03/2017 15:48:16Spacetime curve is a 2d explanation of a 3d spacetime gradient. Odd that it's represented by 4D tensors. Or maybe you're wrong.The universe is 3d and motion. Of that statement it is unlikely that I am incorrect.Energy is of space and not mass. Space energy moves electrons. There is a dilation of energy to the center of mass. Energy of a frame is measured by a clock. A BH has no energy but it does have kinetic properties. Your tenser is just a gradient dilation of fundamental energy. Light cannot reach a black hole because it is bent around a BH. Space energy is dilated to the max around a BH. Mass is the kinetic form of energy. There is always a ratio between PE and KE measured by a clock.You really don't understand physics.

You are assuming to know what I was taught.

Is there really such a thing as true "kinetic energy"? I mean according to "Relativity Theory", nothing really moves. It just depends on how you look at it.For example, when you look at the Sun from a place on Earth, the Sun looks like it's moving across the sky. That movement must give it kinetic energy.But when you look at the Solar System from outside, the Sun stays still, and it's the Earth that's moving, so the Earth must have kinetic energy.It seems therefore that both the Sun and the Earth have kinetic energy. But how do you measure it?

The earth moves around the Sun, the sun moves through the Galaxy and the galaxy moves through the Universe. We can only measure relative positions and never by a true fixed position because nothing is fixed. Normal mass is a ratio of KE and PE while time is related to PE available in space. BH's are completely KE and no PE. The furthest position from mass is total PE.

Time is a verb not a noun.

Available energy is the available speed of time.

Motion is caused by energy.