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Robert H. Dicke

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causes an averaging over different Doppler states and results in an atomic linewidth that is much narrower than the Doppler width. Dicke narrowing occurs at relatively low pressures in the millimeter wave and microwave regions (where it is used in atomic clocks to improve precision). Dicke narrowing is analogous to the
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multiple times. Peebles ended his own 2019 Nobel Lecture with a statement of disappointment that Dicke had never been awarded the prize, then said, "But I am satisfied now because my Nobel Prize is closure of what Bob set in motion, his great goal of establishing an empirically based gravity physics,
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At the end of the war, Dicke and Currie moved to Princeton, New Jersey, where Robert was on the faculty at Princeton University. Dicke died there March 4, 1997. Currie continued to live in Princeton until 2002. For the last years of her life she lived in Hightstown, New Jersey at Meadow Lakes
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and radiative transfer was his prediction of the phenomenon called Dicke narrowing: When the mean free path of an atom is much smaller than the wavelength of one of its radiation transitions, the atom changes velocity and direction many times during the emission or absorption of a photon. This
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Dicke is also credited with the invention of a kind of radio receiver, called a "Dicke Radiometric Receiver" or simply "Dicke Radiometer", developed by Dicke during WWII. His radiometer was characterized by a noise temperature calibration technique using a switchable resistor, known as "Dicke
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could differ by many orders of magnitude. Since there is a non-negligible amount of matter, either we are coincidentally living close to the transition to or from the matter-dominated stage, or we are in the middle of it; the latter is preferred since the coincidences are highly unlikely (an
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stars, such as the Sun, and these stars, according to Dicke, are necessary for the existence of life. At any other epoch, when the equality did not hold, there would be no intelligent life around to notice the discrepancy. This was the first modern application of what is now called the
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near Princeton. Nevertheless, Dicke's group made the second clean detection, and their theoretical interpretation of Penzias and Wilson's results showed that theories of the early universe had moved from pure speculation into well-tested physics.
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Williams J. G.; Dicke R. H.; Bender P. L.; Alley C. O.; Currie D. G.; Carter W. E.; Eckhardt D. H.; Faller J. E.; Kaula W. M.; et al. (1976). "New test of the equivalence principle from lunar laser ranging".
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he claims that even though he is often credited with the invention of the device; he believes he read about it in a review of scientific equipment written by Walter C. Michels, a professor at Bryn Mawr.
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They had one daughter, Nancy born in 1945, and two sons, John born in 1946 and James born in 1953. At the time of Dicke's death they had six grandchildren and a great grandchild.
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At the beginning of World War II, Dicke was asked to assist the war effort by applying his skills to the development of radar with the Massachusetts Institute of Technology.
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Dicke, RH (March 6, 1959). "New Research on Old Gravitation: Are the observed physical constants independent of the position, epoch, and velocity of the laboratory?".
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filed their patent application, Dicke filed a patent titled "Molecular Amplification Generation Systems and Methods" with claims of how to build an infrared
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Dicke, RH (November 9, 1962). "The Earth and Cosmology: The earth may be affected by the distant matter of the universe through a long-range interaction".
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In 1946, he returned to Princeton University, where he remained for the remainder of his career. He did some work in atomic physics, particularly on the
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of the universe pass through stages dominated by radiation, matter, curvature etc. Transitions between stages are very special cosmic times which
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in England in 1920 and as a young girl immigrated to Rochester, New York, via Australia and New Zealand, of which Annie had very fond memories.
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Oral history interview transcript with Robert Dicke on 18 November 1975, American Institute of Physics, Niels Bohr Library & Archives
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Oral history interview transcript with Robert Dicke on 19 January 1988, American Institute of Physics, Niels Bohr Library & Archives
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Oral history interview transcript with Robert Dicke on 18 June 1985, American Institute of Physics, Niels Bohr Library & Archives
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Oral history interview transcript with Robert Dicke on 2 May 1983, American Institute of Physics, Niels Bohr Library & Archives
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Kuhn J. R.; Libbrecht K. G.; Dicke R. H. (1988). "The surface temperature of the sun and changes in the solar constant".
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Roll, P. G.; Krotkov, R.; Dicke, R. H. (1964). "The equivalence of inertial and passive gravitational mass".
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Dicke, R. H.; Peebles, P. J. E.; Roll, P. G.; Wilkinson, D. T. (1965). "Cosmic Black-Body Radiation".
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In the early 1960s, work on Brans–Dicke theory led Dicke to think about the early Universe, and with
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A Look at the Abandoned Contributions to Cosmology of Dirac, Sciama and Dicke (arxiv:0708.3518)
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C. Brans; R. H. Dicke (1961). "Mach's Principle And A Relativistic Theory Of Gravitation".
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R. H. Dicke (1953). "The Effect of Collisions upon the Doppler Width of Spectral Lines".
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R. H. Dicke & H. M. Goldenberg (1967). "Solar Oblateness and General Relativity".
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Dicke R. H. (1962). "Mach's Principle And Invariance Under Transformation Of Units".
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must vary to maintain this equality. Dicke realized that Dirac's relation could be a
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stages. An anthropic explanation of the failure of Dicke's argument was given by
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He spent the remainder of his career developing a program of precision tests of
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Peebles P. J. E.; Dicke R. H. (1968). "Origin of the Globular Star Clusters".
1860: 1101:. In 1957, he first proposed an alternative theory of gravitation inspired by 1043:, a microwave receiver. He used this to set a limit on the temperature of the 2746: 2688: 1658: 1257: 1169: 1118: 800: 785: 685: 1895: 2228: 1825: 1630: 1585: 1546: 1509: 1466: 1429: 1410: 1375: 1356: 1205: 1189: 1063: 976: 805: 780: 755: 740: 596: 229: 2351:"National Science Foundation - The President's National Medal of Science" 1663: 1242: 1181: 553: 546: 221: 1437:
Dicke, RH (April 26, 1974). "The Oblateness of the Sun and Relativity".
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by the establishment of the empirically-based relativistic cosmology."
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R. H. Dicke (1957). "Gravitation without a Principle of Equivalence".
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Weinberg, S. (1987). "Anthropic bound on the cosmological constant".
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In 1970, Dicke argued that the universe must have very nearly the
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Dicke, R. H. (1961). "Dirac's Cosmology and Mach's Principle".
1595:"The measurement of thermal radiation at microwave frequencies" 1331:"Seismology and geodesy of the sun: Low-frequency oscillations" 1048: 1028: 1780:"Robert Dicke; Theorized That Big Bang 'Echo' Still Resonates" 971:; May 6, 1916 – March 4, 1997) was an American astronomer and 1136: 1126: 1083: 1055: 1047:, from the roof of the Radiation Laboratory, of less than 20 1036: 363: 2637: 2297:"A Pentode Lock-In Amplifier of High Frequency Selectivity" 1943: 1389: 1335: 1062:
of the electron. An important contribution to the field of
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Members of the United States National Academy of Sciences
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to search for the radiation. They were preceded by the
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Archived from 2024:3 K: The Cosmic Microwave Background Radiation 1316:Retirement Community until her death in 2005. 1252:Dicke was also responsible for developing the 2828:Members of the American Philosophical Society 2294: 2046: 923: 27:American astronomer and physicist (1916–1997) 2501:"Nobel Lecture: How Physical Cosmology Grew" 2274:"Oral History Transcript — Dr. Robert Dicke" 2198: 2150: 1978: 2666: 2288: 1838: 1803: 1296: 930: 916: 362: 2320: 2074: 1695: 1620: 1499: 1419: 1409: 1365: 1355: 122:Learn how and when to remove this message 2823:Fellows of the American Physical Society 2818:Winners of the Beatrice M. Tinsley Prize 2365: 2124: 1777: 1074:In 1956, approximately two years before 2551:"Princeton Physicist Robert Dicke Dies" 2498: 2428:American Academy of Arts & Sciences 2241: 1778:Archives, L. A. Times (March 6, 1997). 14: 2745: 2703:National Academy of Sciences biography 2295:Michels, W. C.; Curtis, N. L. (1941). 1035:where he worked on the development of 58:Please improve this article by adding 1592: 1553: 1516: 1473: 1436: 1382: 1328: 1282:American Academy of Arts and Sciences 1272:in 1978. In 1973, he was awarded the 1152:is very roughly equal to the inverse 1033:Massachusetts Institute of Technology 1019:and his doctorate, in 1939, from the 2242:Hageman, Steve (December 27, 2017). 2047:Penzias, A.A.; Wilson, R.W. (1965). 1164:: fundamental physical laws connect 993:Albert Einstein Professor in Science 31: 2783:National Medal of Science laureates 1168:to the lifetime of what are called 24: 2788:People from Hightstown, New Jersey 2548: 1184:he re-derived the prediction of a 658:2dF Galaxy Redshift Survey ("2dF") 25: 2839: 2768:20th-century American astronomers 2696: 2254:from the original on June 3, 2021 2159:. American Philosophical Society. 1737:"Robert Dicke and atomic physics" 873:Timeline of cosmological theories 638:Cosmic Background Explorer (COBE) 2763:20th-century American physicists 2301:Review of Scientific Instruments 2174:Principles of Physical Cosmology 1600:Review of Scientific Instruments 947: 897: 886: 885: 337: 36: 2542: 2492: 2466: 2441: 2416: 2391: 2343: 2329: 2266: 2235: 2192: 2163: 2144: 2125:Levesque, Emily (May 8, 2022). 2118: 2083: 2040: 2015: 1972: 1322: 1117:of gravitation, developed with 653:Sloan Digital Sky Survey (SDSS) 506:Future of an expanding universe 252: 2813:University of Rochester alumni 2178:. Princeton University Press. 2026:. Cambridge University Press. 1937: 1902: 1867: 1832: 1797: 1771: 1729: 1704: 1672:"Obituary: Robert Henry Dicke" 1652: 1288:. Dicke was nominated for the 1286:American Philosophical Society 1045:microwave background radiation 868:History of the Big Bang theory 664:Wilkinson Microwave Anisotropy 13: 1: 1646: 1474:Dicke, RH (August 25, 1967). 1390:Proc. Natl. Acad. Sci. U.S.A. 1336:Proc. Natl. Acad. Sci. U.S.A. 1192:and co-workers). Dicke, with 860:Discovery of cosmic microwave 511:Ultimate fate of the universe 60:secondary or tertiary sources 2593:10.1126/science.242.4880.908 2528:10.1103/RevModPhys.92.030501 2155:Gravitation and the Universe 1931:10.1016/0003-4916(64)90259-3 1578:10.1126/science.129.3349.621 1539:10.1126/science.138.3541.653 1501:10.1126/science.157.3791.960 1459:10.1126/science.184.4135.419 1278:National Academy of Sciences 1002: 7: 2793:Princeton University alumni 2373:"Comstock Prize in Physics" 2221:10.1103/PhysRevLett.59.2607 1186:cosmic microwave background 1113:. In 1961, this led to the 1097:using the framework of the 628:Black Hole Initiative (BHI) 10: 2844: 2798:Scientists from New Jersey 2631:10.1103/PhysRevLett.36.551 2564: 2499:Peebles, P. J. E. (2020). 2170:Peebles, P. J. E. (1993). 1966:10.1103/PhysRevLett.18.313 1749:10.1142/9789813142527_0007 391:Chronology of the universe 2803:Scientists from St. Louis 2508:Reviews of Modern Physics 1861:10.1103/RevModPhys.29.363 1841:Reviews of Modern Physics 1274:Comstock Prize in Physics 1270:National Medal of Science 484:Expansion of the universe 336: 331: 327: 315: 305: 298: 291:Beatrice M. Tinsley Prize 281:Comstock Prize in Physics 276:National Medal of Science 270: 262: 239: 212: 196: 188: 169: 143: 136: 2808:Physicists from Missouri 2689:10.1103/PhysRev.125.2163 2276:. Aip.org. June 18, 1985 2022:R. B. Partridge (1995). 1383:Dicke, RH (March 1981). 1329:Dicke, RH (April 1981). 1297:Marriage and family life 1175:weak anthropic principle 1111:large numbers hypothesis 648:Planck space observatory 434:Gravitational wave (GWB) 2337:"Radiometric Receivers" 2201:Physical Review Letters 1946:Physical Review Letters 1896:10.1103/PhysRev.124.925 1216:), who were working at 1156:in certain units, then 1086:and the use of an open 1080:Arthur Leonard Schawlow 1021:University of Rochester 501:Inhomogeneous cosmology 206:University of Rochester 1826:10.1103/PhysRev.89.472 1411:10.1073/pnas.78.3.1309 1357:10.1073/pnas.78.4.1989 1290:Nobel Prize in Physics 1268:Dicke was awarded the 1147:gravitational constant 1143:Dirac had hypothesized 1011:, Dicke completed his 47:relies excessively on 2773:American cosmologists 2151:Dicke, R. H. (1970). 2092:Astrophysical Journal 2054:Astrophysical Journal 1305:descent, was born in 1210:Robert Woodrow Wilson 1099:equivalence principle 592:Large-scale structure 570:Shape of the universe 286:Elliott Cresson Medal 181:Princeton, New Jersey 2555:Princeton University 2474:"Robert Henry Dicke" 2453:search.amphilsoc.org 2449:"APS Member History" 2424:"Robert Henry Dicke" 1239:Copernican principle 1202:accidental detection 1194:David Todd Wilkinson 1029:Radiation Laboratory 1017:Princeton University 997:Princeton University 904:Astronomy portal 862:background radiation 839:List of cosmologists 201:Princeton University 2681:1962PhRv..125.2163D 2652:1968ApJ...154..891P 2623:1976PhRvL..36..551W 2585:1988Sci...242..908K 2549:Savani, Jacquelyn. 2520:2020RvMP...92c0501P 2379:on 29 December 2010 2313:1941RScI...12..444M 2213:1987PhRvL..59.2607W 2104:1965ApJ...142..414D 2067:1965ApJ...142..419P 1993:1961Natur.192..440D 1958:1967PhRvL..18..313D 1923:1964AnPhy..26..442R 1888:1961PhRv..124..925B 1853:1957RvMP...29..363D 1818:1953PhRv...89..472D 1688:1997PhT....50i..92H 1613:1946RScI...17..268D 1570:1959Sci...129..621D 1531:1962Sci...138..653D 1492:1967Sci...157..960D 1451:1974Sci...184..419D 1402:1981PNAS...78.1309D 1348:1981PNAS...78.1989D 1237:application of the 1154:age of the universe 1076:Charles Hard Townes 1009:St. Louis, Missouri 604:Structure formation 496:Friedmann equations 386:Age of the universe 350:Part of a series on 162:St. Louis, Missouri 1670:(September 1997). 1593:Dicke, RH (1946). 1115:Brans–Dicke theory 1095:general relativity 1060:gyromagnetic ratio 1058:and measuring the 943:Robert Henry Dicke 643:Dark Energy Survey 587:Large quasar group 356:Physical cosmology 322:Lee Alvin DuBridge 226:Brans–Dicke theory 148:Robert Henry Dicke 2403:www.nasonline.org 2399:"Robert H. Dicke" 2322:10.1063/1.1769919 2207:(22): 2607–2610. 1987:(4801): 440–441. 1911:Annals of Physics 1784:Los Angeles Times 1758:978-981-314-250-3 1622:10.1063/1.1770483 1564:(3349): 621–624. 1525:(3541): 653–664. 1445:(4135): 419–429. 1307:Barrow-in-Furness 1254:lock-in amplifier 1145:that because the 1039:and designed the 1013:bachelor's degree 940: 939: 611: 610: 453: 452: 345: 344: 300:Scientific career 218:lock-in amplifier 132: 131: 124: 106: 71:"Robert H. Dicke" 16:(Redirected from 2835: 2692: 2663: 2634: 2604: 2559: 2558: 2546: 2540: 2539: 2505: 2496: 2490: 2489: 2487: 2485: 2470: 2464: 2463: 2461: 2459: 2445: 2439: 2438: 2436: 2434: 2420: 2414: 2413: 2411: 2409: 2395: 2389: 2388: 2386: 2384: 2369: 2363: 2362: 2360: 2358: 2347: 2341: 2340: 2333: 2327: 2326: 2324: 2292: 2286: 2285: 2283: 2281: 2270: 2264: 2263: 2261: 2259: 2239: 2233: 2232: 2196: 2190: 2189: 2177: 2167: 2161: 2160: 2158: 2148: 2142: 2141: 2139: 2137: 2122: 2116: 2115: 2087: 2081: 2080: 2078: 2044: 2038: 2037: 2019: 2013: 2012: 2001:10.1038/192440a0 1976: 1970: 1969: 1941: 1935: 1934: 1906: 1900: 1899: 1871: 1865: 1864: 1836: 1830: 1829: 1801: 1795: 1794: 1792: 1790: 1775: 1769: 1768: 1767: 1765: 1733: 1727: 1726: 1724: 1722: 1708: 1702: 1701: 1699: 1697:10.1063/1.881921 1668:Wilkinson, David 1656: 1642: 1624: 1589: 1550: 1513: 1503: 1470: 1433: 1423: 1413: 1396:(3): 1309–1312. 1379: 1369: 1359: 1342:(4): 1989–1993. 1226:critical density 1214:Dicke radiometer 1198:Dicke radiometer 1162:selection effect 1103:Mach's principle 1071:for gamma rays. 1069:Mössbauer effect 1041:Dicke radiometer 970: 969: 966: 965: 962: 959: 956: 953: 932: 925: 918: 902: 901: 900: 889: 888: 582:Galaxy formation 542:Lambda-CDM model 531: 530: 523:Components  405: 404: 366: 347: 346: 341: 317:Doctoral advisor 294: 256: 254: 234:Dicke radiometer 216:Inventor of the 176: 157: 155: 134: 133: 127: 120: 116: 113: 107: 105: 64: 40: 32: 21: 2843: 2842: 2838: 2837: 2836: 2834: 2833: 2832: 2743: 2742: 2699: 2611:Phys. 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He was the 990: 986: 982: 978: 974: 968: 944: 933: 928: 926: 921: 919: 914: 913: 911: 910: 905: 895: 893: 884: 883: 882: 881: 874: 871: 869: 866: 863: 857: 856: 853: 848: 847: 840: 837: 836: 832: 829: 827: 824: 822: 819: 817: 814: 812: 809: 807: 804: 802: 799: 797: 794: 792: 789: 787: 784: 782: 779: 777: 774: 772: 769: 767: 764: 762: 759: 757: 754: 752: 749: 747: 744: 742: 739: 737: 734: 732: 729: 727: 724: 722: 719: 717: 714: 712: 709: 707: 704: 702: 699: 697: 694: 692: 689: 687: 684: 683: 676: 675: 667: 661: 659: 656: 654: 651: 649: 646: 644: 641: 639: 636: 634: 631: 629: 626: 625: 622: 617: 616: 605: 602: 598: 595: 593: 590: 588: 585: 583: 580: 576: 573: 571: 568: 567: 566: 565: 561: 560: 555: 552: 548: 545: 543: 540: 539: 538: 537: 533: 532: 526: 520: 519: 512: 509: 507: 504: 502: 499: 497: 494: 490: 487: 485: 482: 480: 477: 473: 470: 469: 465: 459: 458: 447: 444: 440: 437: 435: 432: 431: 430: 429: 425: 424: 419: 416: 412: 409: 408: 407: 406: 398: 397: 392: 389: 387: 384: 382: 379: 375: 372: 371: 370: 369: 365: 361: 360: 357: 354: 353: 349: 348: 340: 335: 330: 326: 323: 320: 318: 314: 311: 308: 304: 301: 297: 292: 287: 282: 277: 273: 269: 265: 261: 242: 238: 235: 231: 227: 223: 219: 215: 211: 207: 202: 199: 195: 191: 187: 182: 173:March 4, 1997 172: 168: 163: 146: 142: 135: 126: 123: 115: 104: 101: 97: 94: 90: 87: 83: 80: 76: 73: –  72: 68: 67:Find sources: 61: 55: 54: 50: 45:This article 43: 39: 34: 33: 30: 19: 2709: 2672: 2668: 2643: 2640:Astrophys. 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Robert Dicke

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Princeton University
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lock-in amplifier
Dicke model
Brans–Dicke theory
Dicke effect
Dicke radiometer
National Medal of Science
Comstock Prize in Physics
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Physics
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Lee Alvin DuBridge

Physical cosmology

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