Timeline for How does EM radiation depend on the reference frame?
Current License: CC BY-SA 3.0
16 events
| when toggle format | what | by | license | comment | |
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| May 20, 2016 at 18:18 | history | edited | user36790 | CC BY-SA 3.0 |
edited title
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| Oct 20, 2014 at 17:17 | vote | accept | mechalynx | ||
| S Oct 19, 2014 at 15:19 | history | suggested | yess | CC BY-SA 3.0 |
improve formatting
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| Oct 19, 2014 at 15:04 | review | Suggested edits | |||
| S Oct 19, 2014 at 15:19 | |||||
| Oct 18, 2014 at 16:38 | answer | added | yess | timeline score: 3 | |
| Oct 18, 2014 at 16:02 | comment | added | Kyle Kanos | I'm do not believe yours is a duplicate of either of those. | |
| Oct 18, 2014 at 15:48 | comment | added | mechalynx | @KyleKanos Thanks, those do seem to answer the question. Should I flag this as a duplicate of those or that the answers are already there? I feel that this still serves as a different take on the same question and may be useful. | |
| Oct 18, 2014 at 15:27 | comment | added | Kyle Kanos | For more on JohnRennie's last comment, see this Physics.SE post and this Physics.SE post. | |
| Oct 18, 2014 at 15:20 | comment | added | mechalynx | @JohnRennie Is there nothing we would expect to happen if it did accelerate while falling in a gravitational field, but doesn't? | |
| Oct 18, 2014 at 15:18 | comment | added | John Rennie | If you take off in a rocket you know you're accelerating because you can feel the g forces. However if you leap out of the ISS and fall to Earth then you will feel no acceleration even though as viewed from Earth you are accelerating. So we have two cases where you are accelerating but they are fundamentally different. The question is whether an electron accelerates when falling an a gravitational field and I'm not sure anyone knows the answer. | |
| Oct 18, 2014 at 15:15 | comment | added | mechalynx | @JohnRennie I didn't know acceleration is treated differently in special vs general relativity. I'm not sure it would change the outcome of the question either. | |
| Oct 18, 2014 at 15:13 | comment | added | John Rennie | The spacecraft can do what it likes. If the charge isn't accelerating it won't radiate. In special relativity acceleration is absolute so there is no ambiguity about whether the spaceship or the charge is doing the accelerating. In general relativity the question is rather harder. | |
| Oct 18, 2014 at 15:12 | comment | added | mechalynx | @JohnRennie but what if a spacecraft is accelerating then? Also, doesn't a point on a rotating sphere have a non-constant velocity compared to a similar point on another one, also rotating? | |
| Oct 18, 2014 at 15:06 | comment | added | John Rennie | Only accelerating charges radiate. Charges moving at constant velocity do not radiate. | |
| Oct 18, 2014 at 15:02 | review | First posts | |||
| Oct 18, 2014 at 15:06 | |||||
| Oct 18, 2014 at 14:59 | history | asked | mechalynx | CC BY-SA 3.0 |