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verdigris
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I've heard that some physicists think space-time is like a liquid.
So why aren't we dissolving in it?
So why aren't we dissolving in it?
verdigris said:The point I was trying to make was this:when a real liquid like water gets between atoms,in particular ions,heat energy can be released (hydration energy).Since space exists between atoms,does it just exist there for free,or is some kind of energy released when it gets there?
ZapperZ said:Please make exact citation of where you "heard" this from. If you can't find a legitimate reference, please re-read the PF Guidelines that you have agreed to, especially on over-speculative post.
Zz.
Mute said:It's obviously not a scientific journal, but the December 2005 issue of Scientific American's leading story is called "Echoes of Black Holes: What is spactime? Experimental models hint that it could be a kind of fluid". The article is by Theodore A. Jacobson and Renaud Parentani, professors at the university of Maryland and Paris, respectively. On the contents page the blurb about the article adds "Does the behaviour of sound waves suggest that spacetime is a kind of fluid?" In the article itself, light is compared to sound, and black holes are compared to Laval nozzles, etc. I didn't reread it, but I think it was more making analogies than claiming spacetime is literally a kind of fluid.
One of the papers mentioned after the article is by Parentani:
"What did we learn from Studying Acoustic Black Holes?"
http://arxiv.org/abs/gr-qc/0204079"
verdigris said:I've heard that some physicists think space-time is like a liquid.
So why aren't we dissolving in it?
mhill said:I heard about this.. also that Einstein-Cartan version of General relativity is just a continuum model generalization of the dislocation theory (metallurgy)
PhilosophyofPhysics said:The idea of a type of aether usually always attracks the mystical types. These are usually the ones that come up with crackpot metaphysical theories on how quantum physics, consciousness, spirit, and energy are all unified under one underlying theory of everything.
Space-time is the concept that combines the three dimensions of space (length, width, and height) with the dimension of time. It is often visualized as a four-dimensional continuum, where events occur in a specific location at a specific time.
According to Einstein's theory of general relativity, space-time is curved by the presence of mass and energy. This curvature affects the movement of objects by altering the trajectory of their motion. Objects will follow the curvature of space-time, causing them to move in a curved path instead of a straight line.
Yes, space-time can be manipulated or changed by the presence of mass and energy. This is known as the warping of space-time. The amount of warping depends on the mass and energy present in a particular location. For example, a massive object like a planet will warp space-time more than a smaller object like a rock.
The theory of relativity, specifically the theory of general relativity, is the scientific framework that explains the concept of space-time. In this theory, space and time are not absolute, but are intertwined and affected by the presence of mass and energy. It also explains the phenomenon of time dilation, where time appears to slow down for objects in motion.
Exploring the fluid nature of space-time could have significant implications for our understanding of the universe and the laws of physics. It could potentially lead to new technologies and advancements in space travel, as well as shed light on some of the biggest mysteries of the universe, such as dark matter and dark energy. It could also challenge our current understanding of gravity and the nature of time itself.