# Search Results

Results tagged with Search options user 955
19 results

Gravity is an attractive force that affects and is effected by all mass and - in general relativity - energy, pressure and stress. Prefer newtonian-gravity or general-relativity if sensible.

What you are trying to do is recast gravity as a noninertial Force. For this "idea" to work out, you need one or more of the following: a fine tuned rescaling factor that shrinks stuff inside … gravity wells at a speed proportional to the outward volumetric velocity mass is traveling outwards, OR a geometric formalism to explain why stuff does not change in volume over time (maybe you are …
answered Jul 23 '12 by lurscher
there will be a infinitesimal increase in the mass given by the relativistic expression of angular velocity and inertia, but it will be completely undetectable at the velocities you can rotate a mater …
answered Sep 5 '12 by lurscher
The method of images works on the electrostatic case because the axis of symmetry of the mirror charges induces an equipotential line that is equivalent to the infinite conductor surface. In gravitati …
answered Jan 31 '15 by lurscher
empty space 2) A has an associated gravity, with associated space-time curvature 3) now system B, will approach the region where A is found, and measure space-time curvature, but will not interact … and B states "gravity is quantum" potential outcome: A and B are statistically correlated (entangled), supporting that B coupled with a linear superposition of gravitational fields "gravity is …
answered Mar 15 '11 by lurscher
The assertion is simply wrong. The existence of negative mass by itself would not invalidate the equivalence principle, however negative mass next to a positive mass would shield $r^{-2}$ asymptotic g …
answered Jul 4 '17 by lurscher
Did Gravity Probe B provide any bounds on Einstein-Cartan torsion? is a non-zero torsion value at odds with the results regarding frame-dragging and geodetic effects? …
asked Oct 8 '11 by lurscher
You can always create discontinuous waves (which are solutions that exists even in the total absence of sources (be them gravitational or electromagnetic) You can always write a discontinuous functio …
answered Jun 8 '11 by lurscher
If you take a piece of paper, it does not matter how you twist the paper, its intrinsic curvature is zero. (only extrinsic curvature may be non-zero) If you take that piece of paper and make a cylind …
answered Nov 13 '11 by lurscher
The first-order approximation to the radiation power from the quadrupole term is given by $$P = - \frac{128}{5 c^5} G M^2 R^4 \Omega^6$$ where $\Omega$ is the angular speed and $M$ and $R$ are the …
answered Jul 30 '12 by lurscher
As has been shown experimentally organic diamagnetism works 'almost' as a way to counter (or enhance) gravity. There are a bit caveats that affect it though: diamagnetism is not perfectly uniform …
answered Jun 24 '13 by lurscher
As a brainstorming answer, lets calculate the binding energy in another way: suppose we have N electron in the sphere, the electrostatic energy to bring a new electron into the sphere is $Ne/R$. If w …
answered Mar 10 '11 by lurscher
Is it possible that universe is not expanding but instead being dragged into singularity? Yes. That possibility is called the Big Rip. 'dragged into a singularity' can happen even while 'expanding', …
answered Jun 22 '15 by lurscher
I'm looking for existing papers studying a variation to Einstein equation that does not rely on the annoying matter conservation identity: $$T_{\mu \nu; \nu} = 0$$ And instead tries to equate the …