Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with spacetime
Search options not deleted
user 154517
Within relativity (both special and general), changes of reference frames can change both the notions of space and of time, with one depending on the other as well. As a consequence, it is necessary to treat both concepts in a unified manner. Hence the term spacetime.
-6
votes
2
answers
188
views
What is the velocity of a photon through the three spatial dimensions? What is its velocity ...
Two questions here:
What is the velocity of a photon through the three spatial dimensions?
What is its velocity relative to x4?
- 107
2
votes
2
answers
66
views
Consider a cylindrical mass in empty space. In general relativity, do the space-time dimensi...
Consider a cylindrical mass in empty space oriented along the x1 direction. In general relativity, do the space-time dimensions (x1, x2, x3, x4) curve about the mass in a completely symmetrical manne …
- 107
1
vote
2
answers
143
views
In general relativity, is it proper to say that mass curves the three spatial dimensions and... [duplicate]
In general relativity, is it proper to say that mass curves the three spatial dimensions (x1, x2, x3) and also that mass curves the fourth dimension x4?
- 107
4
votes
1
answer
2k
views
What is the velocity of a photon through space-time? What is the 4-velocity of a photon?
What is the velocity of a photon through space-time? What is the 4-velocity of a photon?
- 107
0
votes
1
answer
99
views
As a gravitational wave passes by a region, do the space-time dimensions undulate and move i...
As a gravitational wave passes by a region, do the space-time dimensions undulate and move in a wavelike fashion? Does LIGO measure the movement of the space-time dimensions as a gravitational wave p …
- 107
-5
votes
4
answers
351
views
In Einstein's General Relativity, do the space-time dimensions curve?
In Einstein's General Relativity, do the space-time dimensions curve according to the positions of stars, planets, and masses?
- 107