SergUpstart

I didn't find any waveforms there. Waveforms of gravitational waves similar to sine waves? After all, if gravitational waves are not harmonic oscillations, then the requirement for the presence of mass in gravity can be removed. In short, the question is formulated as follows: is the nature of gravitational waves related to self-oscillations? It is an elastic wave?

My assumption that gravity slows down the speed of propagation of electromagnetic waves, but does not slow down the propagation of gravitational waves can be easily refuted experimentally, if the effect of gravitational lensing for gravitational waves is detected, i.e. the gravity of massive bodies such as the Sun or Jupiter will equally bend the trajectories of both photons and gravitational waves.

I see another problem with graviton. The virtual graviton must move faster than the speed of light so that the gravity of black holes can go beyond the event horizon.

I heard that the discovery of the Higgs boson means that all the fundamental particles of the Standard model have been detected. Graviton has not yet been detected. So does the Standard model provide for the existence of a graviton?

Maybe the question of whether gravity is a force can be solved like this. Is centrifugal force a force? Working in Cartesian coordinates, we work in a non-inertial frame of reference in which gravity is a force.

Based on SR, a fast-moving object with a rest mass will become a black hole for an external observer, even if the relativistic increase in mass is not taken into account. It should only become a black hole by relativistically reducing its size when it becomes smaller than the Schwarzschild radius for its invariant mass. It can be explained by the action of a spin field (analogous to a magnetic field for gravity). If two moving charged particles interact, the Coulomb force decreases by a factor of K, where K=1/sqrt(1-v^2/c^2), due to the fact that the Coulomb force is partially compensated by the Lorentz force. In the gravitational interaction formula, this factor K will enter once in the numerator, due to the relativistic increase in mass, the second time in the denominator, due to the action of the spin field, and as a result, it will decrease F=G*m1*m2*K/r^2K=G*m1*m2/r^2

Another question. We found out that a relativistic mass is an inert mass, but is a relativistic mass a gravitational mass?

Then the main question is, does the relativistic mass satisfy the classical definition of mass as a measure of resistance to changes in inertia?

That's right. But relativistic mass is also a characteristic of inertial properties

Who is arguing with this p=mc = (hf/c^2)*c = hf/c = h/cT = h/lambda And the energy of a photon, which is equa E=hf, is also not related to its mass in your opinion??

The mass of the photon m=hf/c^2. If the mass of the photon is zero, then the pulse of the photon is zero, do you think that the solar sail is impossible?

You will not deny that electric and magnetic fields have mass.(Mass-characteristic of inertial properties)

Gravitational waves are experimentally detected. Waves are an oscillatory process, oscilations are impossible without inertia, and mass is a measure of inertia. For wave propagation, an elastic medium with inertia is necessary. Therefore, if you believe that gravity is not a force field, but a curvature of space-time, you must give this space-time physical properties, elasticity and inertia, or density. This is an unsolved problem in General relativity.

If gravity is not a force, but a curvature of space-time, then in order for gravitational waves to exist, space-time must have elasticity and density, that is, space-time must have physical properties

So after all, the force field is not space-time.

The same phenomenon can be described in different ways

The speed of propagation of electromagnetic waves is slowed down in the material environment. There is no absolute emptiness Natura abhorret vacuum. I consider the gravitational field as a material medium in which the velocity of electromagnetic propagation varies depending on the strength of the gravitational field.

If gravity slows down the speed of propagation of both electromagnetic and gravitational waves in the same way, then how does gravity go beyond the event horizon of black holes? Even in the movie interstellar the hero transmits information from a black hole using gravitational waves ))))

If c g w ≈ 1,7 then the Betelgeuse outbreak will be observed in 400 years

On each continent, several LIGO observation sites are needed. Burst of heavy, electrical neutral, particles or a "gravitational wave" would have come to Earth and would have been detected with a delay between observation sites. From the delays in the measurements, the propagation speed can be deduced. I guess that's not enough. At distances of the order of the earth's diameter in the conditions of earth and solar gravity, the measured phase difference between gravitational and electromagnetic waves will be within the statistical error.

also provide confirmation for Einstein’s general theory of relativity, which predicts that gravitational waves should travel at the speed of light. In my opinion, the speed of gravity and the speed of light coincide in the extreme case when there is no gravity. Gravity reduces the speed of light but does not reduce the speed of propagation of itself.

Astronomers have recorded gravitational waves from the Betelgeuse star (ZN, ua) If we see a flash after some time, it will mean that the speed of gravity propagation is higher than the speed of light. Recently, I proposed a system of equations on this forum, which implies that the speed of gravity is higher than the speed of light. Url deleted

American physicists have shown that phonons that move against the background of a solid or an ideal liquid carry a small negative mass. To do this, the scientists considered the effective theory of the point particle and found corrections to the energy-momentum tensor of phonons. According to scientists, the predicted effect can already be confirmed with the help of Bose condensates or seismic waves. The paper is published in Physical Review Letters and is in the public domain, briefly reported by Physics. Usually physicists believe that sound waves do not carry mass. Of course, waves carry momentum and energy, which, according to General relativity, are equivalent to a small amount of mass, but beyond this effect, nothing should be. At least, that's what the linear models of sound waves say, which agree well with the experiment. However, last year, theoretical physicists Alberto Nicolis (Alberto Nicolis) and Riccardo Penco (Riccardo Penco) suddenly discovered that this is not the case. Using an effective theory for a point particle, scientists have shown that in superfluid helium at zero temperature, phonons-the quanta of sound vibrations-interact effectively with the gravitational field, and the strength of this interaction depends only on the energy of the quasiparticles and the equation of state of the liquid. Moreover, the effective mass of phonons turned out to be negative — in other words, sound waves deviate towards a weaker gravitational field. https://yandex.ru/turbo?text=https%3A%2F%2Fnplus1.ru%2Fnews%2F2019%2F03%2F05%2Fphonon-mass

What do you think about zero-energy Universe model? From Wikipedia, the free encyclopedia Jump to navigationJump to search The zero-energy universe hypothesis proposes that the total amount of energy in the universe is exactly zero: its amount of positive energy in the form of matter is exactly canceled out by its negative energy in the form of gravity.[1][2] Some physicists, such as Lawrence Krauss or Alexander Vilenkin, call this state "a universe from nothingness" but, in fact, the zero-energy universe model requires both matter field with positive energy and gravitational field with negative energy to exist.[3]

Just if the mass of the gravitational field is positive it means that the gravitational field strengthens itself, and the negative mass of the gravitational field means that it does not strengthen itself, but weakens