Relativity

FAQ article development, feel free to ask questions or make suggestions. (I'm still working on the Einstein field equation section. Probably keep that portion seperate to minimize length) This question is amongst one of the most commonly asked questions in relativity. Numerous articles both in pop media and peer reviewed articles refer to terms such as space time fabric, space time curvature. This leads the new learners with a common misconception that space has some mysterious fabric or material like property. To answer this properly we need to describe a few principles. A) gravity influences mass B) energy is a property of particles, or physical configura…

Lets ignore the warp bubble for the second question. How could I have 2 regions of space that bend space and in between the two warped space regions be flat? If you are having trouble understanding the second question let me make a diagram. "u=u" The diagram isn't perfect. The u represents the bending of space and the = represents the flat space. I don't have an understanding of general relativity so this might make it harder to get a comprehensive answer

Why is time bound to space? If space bent like a wormhole does time change? obviously not, but why not. I am just a sophmore in oklahoma lol but just wanting to know how this works. I have never taken any classes on this subject.

Can someone please help me with Lorentz Transformations?? I think it is this x’ = gamma (x –vt) t’ = gamma(t- vx-c squared) gamma =1/sqrt 1-vsqaured/c squared I am unsure if this is the actual formula as I have seen it posted here. Can you also be simple?? All I really need to see is an example using some simple "numbers" only. I am very thankful of you respond, thanks!

Two V shaped bodies are moving towards one another. One is moving up and the other is moving down. The two V’s are in relative constant linear motion. When two bodies are in relative constant linear motion, the one body could be at rest while the other body is in motion, or the other body could be at rest while the one body is in motion. The moving body length contracts. The moving body length contracts in its direction of motion. In the one inertial frame of reference the other moving V length contracts and becomes obtuse while the one resting V remains a right angle. And in the other inertial frame of reference the one moving V length contrac…

''TSOLKAS'S PROBLEM'' FOUR QUESTIONS ON THE ADVANCE OF MERCURY'S PERIHELION QUESTIONS 1. At what distance (in Km) does the Sun's center of mass lie from the center of mass of our solar system? 2. What kind of movement does the Sun perform around the center of mass of our solar system (circular, elliptical, etc) and what are the particulars of this orbit? 3. How much time (period, in years) does the Sun need to make a complete revolution around the center of mass of our solar system? 4. To what extent (expressed in ° degrees) does the Sun's movement (around the center of mass of our …

Articles about ATPS Theory have been published in "Electronic Journal Of Theoretical Physics", see: http://www.ejtp.com Theory of Relativity is deeply routed into the universe. It is a scientific picture of the universe that is very close to the universe itself. ATPS does not touches routs of the Theory of Relativity, it makes some changes that gives Theory Of Relativity more clearness, elegance and beauty. ATPS develops the concept of “space-time” into the concept of “a-temporal space in which time run as a material change”. ATPS takes away time its “mystical” nature, makes it tangible, real, observable. ATPS shows why “light speed” is a maximum speed possible i…

Hi; I was recently something on the science channel about Einstein's life. It talked about the General Theory of Relativity in a way I had never heard before; now, I've seen that program before but I didn't catch that part I guess... It said that Genearl Relativity in effect made the force of gravity an illusion; I have known about the comparison between gravity and a rubber sheet (gravity/spacetime, one of those..) for a long time, but I never knew that gravity is now an illusion; the cause of an object moving through warped spacetime. I might've left something out or said that wrong because I don't recall the exact deatails. So my question is (other than "d…

Einstein was wrong about the existence of "Eather" as it's known in official texts. He agreed that it was not tangible; it couldn't be observed and it couldn't be measured by any instrument. He was obviously justifying his space-time theory of space although he never explained how EM waves (light for example) is produced or even what is the propagation mechanism employed by space. I have a layman proposition that I'm suggesting you for comments. I'm not in the mood for engaging into an empty heated arguing with fellow members, just a pleasant conversation about your personal feelings about it. My argument is very simple really, I believe that there is no space-time f…

There is a new book out called Einstein's Mistakes, by Hans C. Ohanian. Ohanian is a really good relativist and an excellant textbook author. I just got a copy of this book. So far is prettty good. Its nice to have a good source like this so one can have a ready reference to Einstein's mistakes, especially since so many people like to think they've proven Einstein wrong. At least this book gives an authoritative collection of his real mistakes and not the claims of his mistakes. Good reading so far. Pete

As a measure of a distance between objects does the term ,"event separation " mean exactly the same thing as "the spacetime interval"? (as the terms are commonly used) Do physical objects only exist in the framework of the events that went into making them up and changing them?

A photon of wave-length = Planck length, has a mass-energy equivalent to the Planck-mass / energy... so, even at the smallest something can be, its energy density still doesn't dominate gravitationally... if that were not true... then wouldn't high-energy phenomena have already "twisted and contorted the fabric of space-time into donuts" and ripped out "holes to hyper-space" (for want of worthier words) ? is another way of saying "Gravity is weak", to say instead, "the fabric of space-time is strong" (and pretty impervious to (individual) particles) ? Can you construe, the "Hierarchy Problem" of particle physics, i.e. that the Planck mass-energy scale is ~17 …

Now" And the Big Bang The universe only exists "now". Its future is yet to come and its past is but history reflected as a collection of successive previous "nows". The "now” at the time of the big bang would have to have a history of previous "nows" or would have had to spontaneously come into existence. Such history could reflect a steady-state or a collapsing. I find the latter more palatable. With this we could envision a universe collapsing into the Big Bang, expanding and then collapsing again into a Big Bang in a cycle having no beginning and no end.

So i was thinking, i know depeding on the point of view, time will go faster/slow down - and such. example: if you are on earth, and you go in a spaceship and travel the speed of light (assuming you could) towards a star. Your POV is different than that of Earth. Well, what about a POV that can see the star, spaceship, and earth? What does it loook like to them? Do they see it how it "actually is" Object S going c, towards star, away from earth - with no time slowing down for the spaceship?

When a photon Wave Function ("Wave Packet") encounters a partially-silvered mirror, it bifurcates, into two Wave Functions -- one "transmitted" wave, and one "reflected" wave. More generally, quantum waves always split, when encountering spatially sharp potential barriers. Now, considering the case of a fundamental point-like particle (e.g., electron), this "splitting" of Wave Functions, is qualitatively similar, to the "spreading" of Wave Functions -- which amounts to the successive splittings, in every direction, of the original delta-function-like, point-like particle, position eigenstate. What then is similar, between (1) a photon wave encountering a partially-s…

According to relativity, gravity is a curvature of space rather than a "force" proper. Also according to relativity objects travel in a straight line and the effect of gravity is that the object moves in a straight line in a curved space. So I was just ruminating over this notion and hit a conundrum. Let's say you have two bodies in space. The first object is the Earth (but we've stopped its rotation) and the other is a bowling ball. In this thought experiment I want to see what happens when there is no initial relative motion between the two bodies. So at T=0 we set it up so the two bodies are moving through space in perfect synchrony. Relative to one another there i…

I'm just asking about the proper form of the name of Einstein's theory.

Hey guys, Recently I've heard a layman explanation to what Hawking used to "solve" the grandfather-paradox. I am not too versed in this, but the way I understood it, Hawking solves the paradox by saying that nature will "disallow" the travelling to the past in such sense to create the opportunity of the paradox. That got me thinking. Is it valid to say that on Nature? Doesn't that assumption (that nature will "prevent" -- or rather, laws of nature will accumulate to somehow prevent time travel) puts nature with a consciousness? I mean.. if time travel is theoretically valid through relativity (and it is my understanding that if "exotic matter" is used, it …

Baby Bang experiment could open door to new dimension Monday September 11, 2006 Deep underground on the Franco-Swiss border, someone will throw a switch next year to start one of the most ambitious experiments in history, probing the secrets of the universe and possibly finding new dimensions. The Large Hadron Collider - a 27km-long circular particle accelerator at the CERN experimental facility near Geneva, will smash protons into one another at unimaginable speeds trying to replicate in miniature the events of the Big Bang. "These beams will have the kinetic energy of an aircraft carrier slammed into the size of a zero on a 20p piece," Brian Cox of Manch…

Does this mean that there is a common moment of Now (the present) i.e time is ticking everywhere where space is.

QUESTION: Given that proton-LINAC's use static magnetic systems to propel a proton to higher speeds, what theoretical difference would a non-static magnetic system provide in terms of acceleration or power usage or efficiency ? The question here is not on the difference between electrostatics or electromagnets or whichever form of field is applied to accelerate the proton. The question is about the ability to actually move the cavities at the required speed (matching that of the proton), instead of using fixed pulsing of the magnets to re-create new cavities at wanted times. I think the principle is about the proton moving into the cavity or …

I finally figured out why faster-than-light speed travel isn't possible. Go me.

According to the relativity theory the moving object mass should be changed. When we measure the mass at the 273 K and at the 0 K, the two measured mass may have very small difference. Because the electron movement at 0K is very slow. Is this right? If so, which one is the correct mass?

OK, I have a question here. If getting close to the speed of light distorts how time is percieved(slows time down), then what about not moving at all, compaired to how we perceive time. We are moving. Exactly how fast can be up for debate. Studies have shown the milky way is moving at 370 miles per second(Relative to other galaxies). The solar system, is also moving within that system, and the earth is moving there within. I see that it could be also possible that all of the galaxies we know of are moving at a rate, relative to something else we are not aware of, and therefore cannot calculate that speed. So my question is, ... if we are moving so fast, how wo…