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  • Does mass compress space-time? - Physics Stack Exchange
    Hi CuriousOne, I do agree with your static compression statement Mine is obviously a very simplified thought experiment Mass pans and rotates, distorting and warping space-time Sometimes simplifications have the opposite effect :-) Ultimately I am positing whether the presence of mass energy can warp space-time into a gravity field with a centre of effect, and can each unit distance from
  • How can mass bend spacetime, if theres nothing to bend?
    The Michelson-Morley experiment proved there was no aether, nothing that light moves through in space Yet in GR, mass bends spacetime so that light travels in arcs around large masses How can spa
  • How can space time be bent? - Physics Stack Exchange
    How can both of them be true at the same time? As discussed above, they are not really true "at the same time " Special relativity can be thought of as a special case of general relativity Though both can be thought of as "true" in their realm of applicability This as analogous to how Newtonian dynamics is a special case of relativistic dynamics
  • Does gravity CAUSE the bending of spacetime, or IS gravity the bending . . .
    The space-time paths (or worldines) of the elevator and the ground underneath it are not straight lines, and so they intersect at some point That intersection is the point in space-time at which the elevator hits the ground One way to think of this is to consider two ants walking along lines of longitude on a globe
  • If there is no speed limit on space-time compression, why do . . .
    From what I've read about spacetime and general relativity it seems there is no limit on how quickly space-time can be compressed or expanded Why then gravitational waves are limited to light spee
  • thermodynamics - Compression vs. Friction - what happens when space . . .
    When reading about what happens when cosmic debris enters the earth's atmosphere, some sources say friction, others say compression For example: On space com it says: Meteor showers occur when du
  • How do Doppler Effect and Time Dilation differ?
    Above, I have drawn a diagram showing Doppler Effect (here we are using space-time but in a non-relativistic sense Time and distance are the same for A and B) Edit: I am adding a relativistic s
  • What happens to the temperature when an ideal gas is compressed?
    In an ideal gas there is no temperature change upon compression or expansion The only gases that come close to being ideal at room temperature are Helium, Hydrogen and Neon They actually slightly cool on compression and heat on expansion at room temperature This can be reversed at very low temperatures
  • special relativity - Where does length contraction occur towards . . .
    3 Length contraction happens because time in one frame is out of synch with time in another When you consider the length of a passing object, you are effectively asking where the two ends of the object are 'now', where 'now' means a given time in your frame
  • temperature - Why do spaceships heat up when entering earth but not . . .
    Recently I read up on spacecrafts entering earth using a heat shield However, when exiting the Earth's atmosphere, it does not heat up, so it does not need a heat shield at that point of time yet





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