« on: 06/06/2016 15:43:11 »
When dark energy pushes the Galaxy clusteror or even when are solar system moves around black hole do we humans carry kinetic or potential energy do to that movement?
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Quote from: DDoes this mean when objects(particles) fuse gravitons are created.I would rather say that when masses are accelerated, gravitons are created, and carry away some of the energy of the masses. This is visible in the fact that orbiting neutron stars and black holes gradually approach each other, losing gravitational potential energy.
This is analogous to the way that when electric charges are accelerated they radiate electromagnetic waves (eg in a radio or TV transmitter), and carry away some of the energy of the electric charges. This is visible in the fact that you have to continue to pump electrical energy into your radio transmitter.QuoteAnd the bigger and heavier the object gets, the more gravitons are created.I had the impression that it is when you have an asymmetrical supernova that you are expected to get the most gravitons, since this causes the mass of the star to be most strongly accelerated after the supernova. So a symmetrical supernova of the same mass would produce a much smaller burst of gravitons.
Merging black holes are probably the most extreme case - when they are almost touching, the gravitational acceleration is maximum, and graviton radiation peaks. However, once they have finished merging (the "ringdown" phase), the mass is almost the same, but graviton emission stops.
Similar, a spherical rotating neutron star would not produce gravitons, but one which is slowly cooling and shrinking, and has built up a "mountain chain" perhaps 1cm high would radiate gravitons, because it is asymmetric.
So it is not the amount of mass that matters, but how strongly these masses are accelerated.QuoteSo the black Hole is literally made out of gravitons except the center?Gravitons are believed to travel at the speed of light, and the recently detected black hole merger lends support to Einstein's theory.
But even light within a black hole cannot escape the center of a black hole. So I expect that any gravitons trapped inside a black hole will also end up at the center.QuoteAnd every time when physicist accelerate and collide particles to make heavier particles they are also creating gravitons but unable to detect them?Particle physicists like to accelerate charged particles (eg electrons and protons) because they are easier to manipulate than uncharged particles (eg neutrons).
The electric field of these particles is far stronger than their gravitational field (by about 40 orders of magnitude). So when they are bent on their course around the LHC, they produce "synchrotron radiation" which makes it dangerous to be in the tunnel. They would also produce gravitational waves, but their mass is so small that the gravitational waves are immeasurably small.
Similarly, when these particles collide, their electric fields, strong & weak nuclear forces produce spectacular fireworks, but their gravitational interactions are negligible, because their mass is so small.
In fact, the huge mass of the Earth orbiting the Sun only produces about 200W of gravitational waves, far less than the hundreds of Megawatts that pour into CERN for accelerating charged particles.
You don't even need gravitational waves to accelerate objects - it has been done in our own solar system, where gravitational wave emissions are miniscule.
Many interplanetary space probes use a gravitational slingshot to give them the velocity they need to reach the outer solar system (or the inner solar system, which, counter-intuitively, is just as difficult to reach despite it being closer to the center of the Sun's gravitational pull).
If you were close to a pair of orbiting black holes, where there is a significant emission of gravitational waves, you may be able to "surf" the gravitational waves to gain velocity; but it might be much easier to plot a course between the black holes that would give you a very significant acceleration.
However, if there is no time in your void then you cannot enter it, nothing can.My own speculation:
- what happens to light at the boundary, if it can't be absorbed must it be reflected? The perfect mirror?
- if it truly contains no spacetime then there is nothing to keep the boundaries apart and it is nothing more than a point.
Haven't a clue!
A 'true' void would't have any dimensions as it is truly nothing, so it would't have any boundaries, nor could it be a single point, as that is one dimension two many. I do not think we could define a void with our geometric view of space & volume and nor is there any point, a true void could't possibly exist, since it is by definition nothing.
Many of the current theories are summarized here: https://en.wikipedia.org/wiki/Ultimate_fate_of_the_universe, with links to more details, if you are interested.
Would quantum world exist outside of the big bang expansion?As Robbie the robot computer might say: "Insufficient Data".
Quote from: DNo matter how far dark energy separate Entangled particles they will be always connected. Maybe in the future the quantum entanglement might be one way to fight dark energy and keep does separated galaxies and planets connected. Assuming that dark energy don't increase to such level when it can rip apart even the smallest particles.I'm sorry but that doesn't really mean anything at all. E.g. No matter how far dark energy separate Entangled particles has no meaning. What exactly did you think you were saying when you wrote that? First of all its bad grammar, i.e. "how far dark energy separate" is grammatically wrong and as a result I don't know what it means. Dark energy and quantum entanglement are totally unrelated concepts. Particles which are entangled are not connected. That's a misconception. There is no reason to assume that anything having to do with entanglement can work against dark energy. Also, once again, you made another grammatical error here, i.e. "and keep does separated galaxies" is quite wrong and as such quite meaningless. And in any case dark energy does not have anything to do with planets or solar systems or anything within galaxies. It's influence is only at the cosmological level meaning that it only effects how galaxies interact with each other. It'd be impossible for dark energy to rip particles apart. It's strength is way to small and there's nothing that we know that could increase it. However we don't know much about dark energy so that could be wrong.