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Posted on 04/07/2014 9:17:43 AM PDT by BenLurkin
There’s no end to it. Gravity appears to be madly greedy and long armed. Members of the Virgo Super cluster are connected to each other, and they’re dozens of millions of light-years apart. Objects in the Pisces-Cetus Super cluster complex are even connected to each other by our invisible and obnoxiously possessive friend. And they are hundreds of millions of light years apart…
In fact, you’re so popular that you are gravitationally pulled towards even most distant object in the observable Universe. And they, in turn, are linked to you. As a result, without the outward expansion and acceleration of the Universe, everything would fall inward to a common center of gravity. Newton thought that gravity was instantaneous and if the Sun disappeared, the Earth would immediately fly away. Einstein realized that gravity is distortions of spacetime caused by mass. And as it turns out, gravity moves at the speed of light.
(Excerpt) Read more at universetoday.com ...
“In the case of black holes I begin to wonder if there is a speed of gravity.”
Well, there are really two different things going on here. There is a “speed of gravity”, that is equivalent to the speed of light, but this just means that any change in gravity would propagate at the speed of light. When it comes to gravity from black holes trapping light, it is able to do this because even the speed of light is lower than the escape velocity to get out of a black hole’s gravity well.
The ether is another idea that was abandoned because it failed to meet experimental testing. The Michelson-Morley experiment put the nails in that coffin, and paved the way for relativity.
Al Gore used to promote global warming by stating that ‘just like gravity, global warming is settled science.’
Which is deeply embarrassing to climate scientists who promote AGW, and hillarious to real scientists.
I just love biscuits and gravity.
He ain’t heavy it’s gravity ping.
ZPE push ... see Haisch, Rueda, Puthoff on the ZPF as origin of inertial mass and thus gravitational mass.
Magnetism = crystalized gravity.
Would you like to show us where Haisch, Rueda are mistaken in their proof for F = ma can be rewritten to show the zero point field is actually the source for inertia? I’ll link you to the Physics Journal articles again, if you wish.
Whoops, thanks ct!
Here's a taste of Haisch, et al:
"...But inspite of these two limitations, our analysis yielded a remarkable and unexpected result: that Newton`s equation of motion, f=ma, regarded since 1687 as a postulate of physics could be derived from Maxwell`s laws of electrodynamics as applied to the ZPF. This implication is not an innate property of matter, rather it is an electromagnetically-derived force (or quantum vacuum derived force in a future more general derivation).... (4) Relativistic rest mass: the relationship of the mass of a body and the total energy available by perfect annihilation of the mass in the body, that is expressed in the E=mc^2 relation of special relativity.
... One can imagine a universe, for example, in which inertial mass m_{i}, and passive gravitational mass m_{g} were different.... but then objects would not fall with the same acceleration in a gravitational field and there would be no principle of equivalence to serve as the foundation of general relativity.
... In other words, if one begins with Maxwell`s equations as applied to the ZPF, one finds from the laws of electrodynamics that f_{r}=-m_{zp}a and thus if one assumes that the electromagnetic parameter m_{zp} really is the physical basis of mass, Newton`s third law of equal and opposite forces f=-f_{r} results in a derivation of f=ma from the electrodynamics of the ZPF. That being the case, one can, in principle dispense with the concept of inertial mass altogether. Matter consisting of charged particles (quarks and electrons) interacts with the electromagnetic ZPF and this yields a reaction force whenever acceleration takes place and that`s the cause of inertia."
Quote: “Google “gravity push vs pull”. There is a strong case that gravity doesn’t actually pull. Rather, it is actually a “push” force.”
I believe that Mr. Einstein proved it was a push, no?
I believe that Mr. Einstein proved it was a push, no?
I do remember reading that “push” accounts for some odd gravitaional properties that are not explained by the pull theory.
At this moment, the mass of the entire Earth is pulling down on me, yet I can temporarily move my entire mass away from it by exerting less than 1 calorie of energy.
Another is that because of gravity, the universe and our reality are nothing like what they appear. For example, the Earth does not have a simple elliptical orbit around the Sun. If you could actually look at it, the Earth traces a wobbly orbit around the Sun. Why? Because the Earth is locked with our moon, which is relatively large. The Earth and moon actually orbit each other, with the center of mass being what orbits the Sun.
“Yes, but this is the same as the ether that was put to bed in name only.”
Not really. The concept as it existed is defunct, it failed experimental verification.
There are other concepts nowadays that you could say are similar to an “ether”, such as the cosmic background radiation or the Higgs field, but these are similar only in extent. Neither actually shares the properties proposed for the luminiferous ether, which would be a prerequisite to making any theory requiring an ether to work.
There is no gravity, the universe just sucks.
“Hovercat”
I’m saving that one! Thanks!
The concept as it existed is defunct, it failed experimental verification.
i.e. same name. Different concept.
Kinda like dog bitch vs the other kind. :)
You never linked me to such an article in the first place, you must have me mistaken for someone else.
Besides, you can do a great many things with mathematics, which may or may not end up reflecting the reality of the world around us, which is why physics requires experimental verification. Push gravity theories have consistently failed experimental verification, so rambling on about math can’t save them.
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