Timeline for Rigorous derivation of relativistic energy-momentum relation
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
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| Oct 12, 2018 at 10:50 | comment | added | juanrga | @user No one is moving part of the operator $d/dt$ over $v$, what is being moved is the differential in the denominator in the fraction $dX/dt$ because the action of the operator is identical to the fraction of differentials $(d/dt) v = dv/dt$ | |
| May 25, 2018 at 13:36 | comment | added | user | @Physikslover it's absolutely not identical. $\frac{d}{dt}$ is notation for the differential operator which is something that maps functions to other functions. On the other hand $F \space dx$ is a differential form, where $dx$ is a function that maps tangent vectors (pairs of vectors) to scalars. Moving the $\frac{1}{dt}$ over from $v$ to $dx$ is mathematical nonsense. | |
| May 24, 2018 at 1:55 | comment | added | Physiks lover | Why won't you accept the second derivation, given that it's mathematically identical to the first? | |
| May 22, 2018 at 9:10 | answer | added | sagittarius_a | timeline score: 1 | |
| May 22, 2018 at 1:37 | history | tweeted | twitter.com/StackPhysics/status/998739527643619328 | ||
| May 21, 2018 at 21:18 | history | edited | Emilio Pisanty | CC BY-SA 4.0 |
Spelling in title.
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| May 21, 2018 at 21:06 | answer | added | user | timeline score: 4 | |
| May 21, 2018 at 19:34 | comment | added | Qmechanic♦ | Hi user. Welcome to Phys.SE. If you haven't already done so, please take a minute to read the definition of when to use the homework-and-exercises tag, and the Phys.SE policy for homework-like problems. | |
| May 21, 2018 at 19:12 | history | rollback | user |
Rollback to Revision 2
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| May 21, 2018 at 18:36 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
added 6 characters in body; edited tags; edited title
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| May 21, 2018 at 18:28 | comment | added | AccidentalFourierTransform | $m:=\sqrt{E^2-p^2}$ is the definition of mass, from which $E^2=p^2+m^2$ trivially (and rigorously) follows. That's pretty much it... | |
| May 21, 2018 at 18:25 | history | edited | user | CC BY-SA 4.0 |
added 7 characters in body
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| May 21, 2018 at 18:08 | vote | accept | user | ||
| May 21, 2018 at 17:41 | answer | added | knzhou | timeline score: 9 | |
| May 21, 2018 at 17:24 | review | First posts | |||
| May 21, 2018 at 17:36 | |||||
| May 21, 2018 at 17:20 | history | asked | user | CC BY-SA 4.0 |