network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 10 months |
| seen | Apr 3 at 20:40 | |
| stats | profile views | 44 |
|
Jun 27 |
comment |
When does centripetal force cause constant circular motion? Oh, I see. Simple enough. |
|
Feb 4 |
comment |
Is time fundamentally different from space? That is a good argument, and one that I was hoping I would get. But how does the generalized form of that equation look like? Or, at least, how does it look if you introduce another dimension? |
|
Feb 4 |
comment |
Is time fundamentally different from space? @VineetMenon I rewrote the question. |
|
Feb 4 |
comment |
Is time fundamentally different from space? @VineetMenon Could you please post an answer explaining why time is fundamentally different from other dimensions? My current understanding (as a non-physicist) is that "spatial" and "temporal" dimensions are the same things, but they have different names because we experience them differently. I guess you could say that the distinction is that movement is restricted in the fourth dimension, but do we know that to be a characteristic of the dimension, or is it a limitation of our technology? |
|
Feb 4 |
comment |
Is time fundamentally different from space? I did not know there was a Theoretical Physics board here on SE. If you think this question is better suited there, please move it. theoreticalphysics.stackexchange.com |
|
Feb 4 |
comment |
Is time fundamentally different from space? +1 "Flatland" seems very interesting. Thanks for pointing it out. |
|
Feb 4 |
comment |
Is time fundamentally different from space? "With respect to the brain scan: this way of visualisation is chosen for simplicity" -- I know, but that is besides the point for this question. :) I picked that image because it illustartes how 2D scans in rapid succession look like a substance that evolves over time. |
|
Feb 4 |
comment |
Is time fundamentally different from space? "you can in principle move freely forward and backward, while in time, your motion is fixed" -- But is that a characteristic of the dimension, or a limitation of our technology and/ or dimensional nature? Afaik, there's no evidence that time travel in the past is impossible, so there's nothing that can be said for certain about that for now. |
|
Nov 28 |
comment |
What are some scenarios where FTL information transfer would violate causality? @JustinL. A way you could think about this is perceiving a 2D plane (a paper) from different angles in 3D; if 'all is right', your perception will distort, but you'll never see an impossible shape. The same way with perceiving a 3D body in 4D; depending on how you move in 4D, your perception of the 3D body might change, but you shouldn't ever see something that is impossible. |
