Warped

What cosmological information is expected/obtained from gravitational wave astronomy?

errr, pardon the interruption. The term used in Physics is "spacetime'" not "space-time" Search "Einstein's Field Equations"

Newcomer, Velocity is defined as speed AND direction, if the direction or speed or both changes then the velocity is changed by definition. Also acceleration is a change of velocity, i.e. if either the speed or direction changes (the velocity changes) then acceleration occurs by definition. Also, the term Einstein created is "spacetime" - one word, rather than "space-time" A couple of simplistic examples of Einsteinian Gravity I use:... You are walking on the sidewalk in your neighborhood and you see that the path ahead is blocked by bunch of garbage cans. So, you automatically change direction and go around the cans and proceed on in the direction you were going. Or, you are traveling on a highway and it starts to go uphill, so you change direction and go uphill following the upward curve. So, as a mass encounters a "warp" in spacetime it changes velocity (or accelerates) to follow the curvature caused by the warp. Sources: I use my cell phone since it is an on-line encyclopedia (Wikipedia). Also, the "Learning Company" has excellent video courses on the subject (www.thegreatcourses.com). For a deeper, more rigorous discussion on the topic, search "Einstein's Field equations"

I'm not sure I understand that. Einstein's theory of gravity is part and parcel of his General Theory of Relativity so how would quantumizing his theory of gravity be different from that which it is a part of in the first place? Several references/discussions regarding gravity use the phrase "caused by the 'warping' of spacetime. Warp = curve

I also agree that the spacetime warp IS gravity. But my point is that it does not involve a "Force" in the classical sense (i.e no force carrying particle is involved, like the hypothsized "graviton" ) therefore gravity CANNOT be quantized which makes the search for a "theory of everything" a waste of time and effort..sort of like pissing up a rope. If all of this is in fact the case then a different theory of gravity may be needed to proceed on the quest. (a little background here: I have no credentials. But I have just completed 19 video lecture courses* consisting of 465 lectures given by phd physicists and phd college professors on the topics of Astronomy, Quantum Mechanics, Gravity, General Relativity, Dark Matter -Dark Energy, Particle Physics, et cetera, ad nauseam....for a total of 233 hours. That plus a BS in Math. So, I have acquired only a minimum level of familiarity with the subject matter at college freshman level to bolster my posting. I apologize for my verbosity. * The Great Courses, published by The Learning Company.

Silvestru, thank you for your reply. As your reference states, the Graviton is only hypothisized. In the current state of Physics there is no particle of gravity since an object of mass follows the contours of the warp and is not "pulled"and thus no chance of success trying to apply quantum physics to gravity...yet.

Recently a perplexing line of thought came to me that I cannot get rid of. There must be a fault in it somewhere but I can’t find it. -Given: The effects of Einsteinian gravity are caused by a warping of spacetime, changing the geometry of space. -Thus: The fact that space can be warped is an intrinsic characteristic of space itself. -An object of mass approaching a larger mass has its momentum changed by encountering the warp caused by the larger mass, and proceeds to follow the topography of the contours of the larger warp, thus only appearing to being pulled. -This occurs without any force. No force, no force carrier. -Therefore, gravity cannot be quantized, there are no quanta involved in space itself.