Knowledge (XXG)

:Featured article candidates/Special relativity/archive2 - Knowledge (XXG)

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134:. I disagree that one paragraph for the introduction is enough to make an article lose FA status, are we really supposed to add a useless paragraph because someone arbitrarily decided this rule for Special Relativity without reading this article??? I think the structure is adequate, and the diagrams are good/excellent. I also disagree with the technical objection that Joke makes, it's not possible to do calculation in non-inertial frames, it's formally only possible to do calculations in inertial frames, and then work out what that looks like from a non-inertial frame. It's got good references. I think it's a featured article, but not suitable for the front page (too technical). I vote for. 248:
Furthermore, the article is not stable and is continually undergoing insertion and deletion of material with limited claims to the verifiability of such material. This leads to some subtle and sometimes rather serious biases being introduced into the article (and its ancillary articles as well). As
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Needs a copy-edit. In particular, please merge some of the stubby little paragraphs, and reword the unencycopedic expressions such as 'As we shall see'. It's not a transcription of an oral presentation, or a fireside chat. Otherwise, it has a lot going for it. The animation is ... amazing!
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Reading through it, there is little sense of where the article is going. One (shortish) section seems to haphazardly follow another. Some sections, like "Relativity and unifying Electromagnetism" are embarassingly small. The structure of the article really needs to be better thought
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While I have as of yet no edits in en:Knowledge (XXG) article space, this is an article I've been following for some time. I question the comprehensiveness of the article, especially as it barely addresses a central point that readers deserve to have answered, namely
203:(a big thick book if you ever wanted one). Furthermore, a great many textbooks treat the second postulate as an independent case from the first one. By some reasoning, I suppose one could consider it a consequence or a "special case", but it is such an 108:
I'm not sure that special relativity applies only to inertial frames of reference. Like Newtonian mechanics, it seems perfectly possible to do calculations from non-inertial frames of reference, should one desire. It sure doesn't include gravity,
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is "flat" in a sense which does not depend upon the specific cause of curvature in General Relativity. Statements like "the difference between SR and GR is that SR does not cover accelerations" are incorrect. SR was
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to describe situations involving accelerations, like the radiation from an accelerated charge. The real distinction is that SR spacetime is flat, while GR spacetime can be curved. See Misner, Taylor and Wheeler's
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A technical subject such as special relativity with an extensive number of possible references deserves an article that includes explicit in-line citations to its references, including page numbers. --
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and the main objection was lack of references, which has since been fixed. Comprehensive and excellently illustrated, and although it is highly technical there is a daughter article
54:. Knowledge (XXG) guidelines state that the longer the article, the longer the introduction should be. There should be two or three solid paragraphs in introduction, not just one. 185:
Needs a copy edit and a thorough work-over by a person who cares to get English prose really, really right. The pictures, however, are great. I should note that "flat spacetime"
160:"...frames in flat spacetime, where the effects of gravity can be ignored." is too complicated. Flat space time is a concept of general relativity not of special relativity. 143:
If there's enough information on the subject to have an article that's so long, there's enough information that can reasonably be placed into the introduction.
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The history article is poor. I don't think having a separate article is any excuse for not having a (short, but good) history section in the main article.
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special case that most books pull it out and treat it separately. (I'm almost sure Halliday and Resnick do, for example.)
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It's a fine article, I don't think it is FA material yet. Here are some brief comments, which are by no means exhaustive:
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No clear attempt to base statements on the references provided (this article is crying out for in-line references)
166:"Second postulate (invariance of c)" is a consequence of the first one. Light is an electromagnetic wave. 163:"the state of inertial motion." is unclear. Why not velocity instead of this very pedantic formulation. 41:. Note that despite my username, I am not actually a physicist and did not contribute to this article. 225: 112:
The section about tests ("status") of special relativity should probably be moved up and emphasized.
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So, I think it is a good article but needs a fair amount of work to meet today's FA criteria. –
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What is the value of special relativity within the context of today's theoretical physics?
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Claim of Einstein unsourced, potentially irrelevant to later or current 'consequences'
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Poor separation of the physical, historical, and philosophical aspects of the subject
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Historical baggage about aether should be placed in a separate section or article
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Undefined and potentially confusing concepts (observer, material object) included
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I see it, there are three interrelated issues that should be dealt with:
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Overall structure of the article lacks proper cohesion and direction
315:"The geometry of space-time" and "Physics in spacetime" sections 318:
Potentially valuable information presented without clear context
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Important concepts (e.g. symmetry, Maxwell's equations) left out
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That's all for today. I'll have other comments later on.
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what distinguishes Special Relativity from General: the
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Will benefit greatly from an overall coherent structure
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Could be merged with much needed section about symmetry
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Will benefit greatly from an overall coherent structure
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Notational issues not directly relevant to this article
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Particluar issues and/or suggestions for improvement:
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Could be expanded to address the concept of symmetry
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per above, needs some improvement in prose. Thanks!
329:"Relativity and unifying electromagnetism" section 271:Does not correlate well with the rest of article 282:"Lack of an absolute reference frame" section 8: 18:Knowledge (XXG):Featured article candidates 307:Confusing and unencyclopedic, unreferenced 354:Choice of jounal articles is questionable 301:"Relativistic mass" and "Force" sections 7: 351:References to textbooks appear solid 24: 310:These sections should be removed 39:Special relativity for beginners 1: 234:17:29, 12 February 2006 (UTC) 212:08:28, 11 February 2006 (UTC) 177:09:18, 8 February 2006 (UTC) 148:18:56, 7 February 2006 (UTC) 139:04:03, 7 February 2006 (UTC) 125:16:18, 6 February 2006 (UTC) 87:12:08, 5 February 2006 (UTC) 77:10:49, 5 February 2006 (UTC) 59:05:31, 5 February 2006 (UTC) 46:04:30, 5 February 2006 (UTC) 157:for the following reasons: 115:The animation is very cool. 72:suggestion is followed up. 382: 35:was nominated back in 2004 362:03:38, 14 July 2006 (UTC) 340:Lacks strong conclusion 293:"Consequences" section 348:"References" section 321:Appears too technical 64:Conditional Support 28:Special relativity 337:"Status" section 232: 373: 229: 223: 191:Minkowski metric 381: 380: 376: 375: 374: 372: 371: 370: 227: 31: 22: 21: 20: 12: 11: 5: 379: 377: 369: 368: 367: 366: 365: 364: 355: 352: 346: 345: 344: 341: 335: 334: 333: 327: 326: 325: 322: 319: 313: 312: 311: 308: 305: 299: 298: 297: 291: 290: 289: 286: 280: 279: 278: 275: 272: 268:Intro section 262: 261: 260: 259: 256: 253: 237: 236: 214: 170: 169: 168: 167: 164: 161: 152: 151: 150: 128: 127: 118: 117: 116: 113: 110: 106: 103: 96: 95: 89: 79: 74:Thethinredline 61: 30: 25: 23: 15: 14: 13: 10: 9: 6: 4: 3: 2: 378: 363: 360: 356: 353: 350: 349: 347: 342: 339: 338: 336: 331: 330: 328: 323: 320: 317: 316: 314: 309: 306: 303: 302: 300: 295: 294: 292: 287: 284: 283: 281: 276: 273: 270: 269: 267: 266: 264: 263: 257: 254: 251: 250: 247: 242: 241:Strong Object 239: 238: 235: 230: 222: 218: 215: 213: 210: 206: 202: 197: 192: 188: 184: 181: 180: 179: 178: 175: 165: 162: 159: 158: 156: 153: 149: 146: 142: 141: 140: 137: 133: 130: 129: 126: 123: 119: 114: 111: 107: 104: 100: 99: 98: 97: 93: 90: 88: 85: 80: 78: 75: 71: 68: 65: 62: 60: 57: 53: 50: 49: 48: 47: 44: 40: 36: 29: 26: 19: 245: 240: 216: 204: 200: 195: 186: 182: 171: 154: 131: 91: 63: 51: 32: 201:Gravitation 221:Flcelloguy 136:WolfKeeper 359:Tim Shuba 205:important 196:invented 70:Fieari's 43:Redquark 209:Anville 132:Support 109:though. 217:Object 183:Object 155:Object 145:Fieari 92:Oppose 56:Fieari 52:Object 228:note? 33:This 16:< 122:Joke 102:out. 84:Tony 67:iff 226:A 187:is 174:Vb 231:) 224:(

Index

Knowledge (XXG):Featured article candidates
Special relativity
was nominated back in 2004
Special relativity for beginners
Redquark
04:30, 5 February 2006 (UTC)
Fieari
05:31, 5 February 2006 (UTC)
iff
Fieari's
Thethinredline
10:49, 5 February 2006 (UTC)
Tony
12:08, 5 February 2006 (UTC)
Joke
16:18, 6 February 2006 (UTC)
WolfKeeper
04:03, 7 February 2006 (UTC)
Fieari
18:56, 7 February 2006 (UTC)
Vb
09:18, 8 February 2006 (UTC)
Minkowski metric
Anville
08:28, 11 February 2006 (UTC)
Flcelloguy
A note?
17:29, 12 February 2006 (UTC)
Tim Shuba
03:38, 14 July 2006 (UTC)

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