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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".
1849: 1090:. In 1957, he first proposed an alternative theory of gravitation inspired by 1032:, a microwave receiver. He used this to set a limit on the temperature of the 2735: 2677: 1647: 1246: 1158: 1107: 789: 774: 674: 1884: 2217: 1814: 1619: 1574: 1535: 1498: 1455: 1418: 1399: 1364: 1345: 1194: 1178: 1052: 965: 794: 769: 744: 729: 585: 218: 2340:"National Science Foundation - The President's National Medal of Science" 1652: 1231: 1170: 542: 535: 210: 1426:
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".
1584:"The measurement of thermal radiation at microwave frequencies" 1320:"Seismology and geodesy of the sun: Low-frequency oscillations" 1037: 1017: 1769:"Robert Dicke; Theorized That Big Bang 'Echo' Still Resonates" 960:; May 6, 1916 – March 4, 1997) was an American astronomer and 1125: 1115: 1072: 1044: 1036:, from the roof of the Radiation Laboratory, of less than 20 1025: 352: 2626: 2286:"A Pentode Lock-In Amplifier of High Frequency Selectivity" 1932: 1378: 1324: 1051:
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 2013:3 K: The Cosmic Microwave Background Radiation 1305:Retirement Community until her death in 2005. 1241:Dicke was also responsible for developing the 2817:Members of the American Philosophical Society 2283: 2035: 912: 16:American astronomer and physicist (1916–1997) 2490:"Nobel Lecture: How Physical Cosmology Grew" 2263:"Oral History Transcript — Dr. Robert Dicke" 2187: 2139: 1967: 2655: 2277: 1827: 1792: 1285: 919: 905: 351: 2309: 2063: 1684: 1609: 1488: 1408: 1398: 1354: 1344: 111:Learn how and when to remove this message 2812:Fellows of the American Physical Society 2807:Winners of the Beatrice M. Tinsley Prize 2354: 2113: 1766: 1063:In 1956, approximately two years before 2540:"Princeton Physicist Robert Dicke Dies" 2487: 2417:American Academy of Arts & Sciences 2230: 1767:Archives, L. A. Times (March 6, 1997). 2734: 2692:National Academy of Sciences biography 2284:Michels, W. C.; Curtis, N. L. (1941). 1024:where he worked on the development of 47:Please improve this article by adding 1581: 1542: 1505: 1462: 1425: 1371: 1317: 1271:American Academy of Arts and Sciences 1261:in 1978. In 1973, he was awarded the 1141:is very roughly equal to the inverse 1022:Massachusetts Institute of Technology 1008:and his doctorate, in 1939, from the 2231:Hageman, Steve (December 27, 2017). 2036:Penzias, A.A.; Wilson, R.W. (1965). 1153:: fundamental physical laws connect 982:Albert Einstein Professor in Science 20: 2772:National Medal of Science laureates 1157:to the lifetime of what are called 13: 2777:People from Hightstown, New Jersey 2537: 1173:he re-derived the prediction of a 647:2dF Galaxy Redshift Survey ("2dF") 14: 2828: 2757:20th-century American astronomers 2685: 2243:from the original on June 3, 2021 2148:. American Philosophical Society. 1726:"Robert Dicke and atomic physics" 862:Timeline of cosmological theories 627:Cosmic Background Explorer (COBE) 2752:20th-century American physicists 2290:Review of Scientific Instruments 2163:Principles of Physical Cosmology 1589:Review of Scientific Instruments 936: 886: 875: 874: 326: 25: 2531: 2481: 2455: 2430: 2405: 2380: 2332: 2318: 2255: 2224: 2181: 2152: 2133: 2114:Levesque, Emily (May 8, 2022). 2107: 2072: 2029: 2004: 1961: 1311: 1106:of gravitation, developed with 642:Sloan Digital Sky Survey (SDSS) 495:Future of an expanding universe 241: 2802:University of Rochester alumni 2167:. Princeton University Press. 2015:. Cambridge University Press. 1926: 1891: 1856: 1821: 1786: 1760: 1718: 1693: 1661:"Obituary: Robert Henry Dicke" 1641: 1277:. Dicke was nominated for the 1275:American Philosophical Society 1034:microwave background radiation 857:History of the Big Bang theory 653:Wilkinson Microwave Anisotropy 1: 1635: 1463:Dicke, RH (August 25, 1967). 1379:Proc. Natl. Acad. Sci. U.S.A. 1325:Proc. Natl. Acad. Sci. U.S.A. 1181:and co-workers). Dicke, with 849:Discovery of cosmic microwave 500:Ultimate fate of the universe 49:secondary or tertiary sources 2582:10.1126/science.242.4880.908 2517:10.1103/RevModPhys.92.030501 2144:Gravitation and the Universe 1920:10.1016/0003-4916(64)90259-3 1567:10.1126/science.129.3349.621 1528:10.1126/science.138.3541.653 1490:10.1126/science.157.3791.960 1448:10.1126/science.184.4135.419 1267:National Academy of Sciences 991: 7: 2782:Princeton University alumni 2362:"Comstock Prize in Physics" 2210:10.1103/PhysRevLett.59.2607 1175:cosmic microwave background 1102:. In 1961, this led to the 1086:using the framework of the 617:Black Hole Initiative (BHI) 10: 2833: 2787:Scientists from New Jersey 2620:10.1103/PhysRevLett.36.551 2553: 2488:Peebles, P. J. E. (2020). 2159:Peebles, P. J. E. (1993). 1955:10.1103/PhysRevLett.18.313 1738:10.1142/9789813142527_0007 380:Chronology of the universe 2792:Scientists from St. Louis 2497:Reviews of Modern Physics 1850:10.1103/RevModPhys.29.363 1830:Reviews of Modern Physics 1263:Comstock Prize in Physics 1259:National Medal of Science 473:Expansion of the universe 325: 320: 316: 304: 294: 287: 280:Beatrice M. Tinsley Prize 270:Comstock Prize in Physics 265:National Medal of Science 259: 251: 228: 201: 185: 177: 158: 132: 125: 2797:Physicists from Missouri 2678:10.1103/PhysRev.125.2163 2265:. Aip.org. June 18, 1985 2011:R. B. Partridge (1995). 1372:Dicke, RH (March 1981). 1318:Dicke, RH (April 1981). 1286:Marriage and family life 1164:weak anthropic principle 1100:large numbers hypothesis 637:Planck space observatory 423:Gravitational wave (GWB) 2326:"Radiometric Receivers" 2190:Physical Review Letters 1935:Physical Review Letters 1885:10.1103/PhysRev.124.925 1205:), who were working at 1145:in certain units, then 1075:and the use of an open 1069:Arthur Leonard Schawlow 1010:University of Rochester 490:Inhomogeneous cosmology 195:University of Rochester 1815:10.1103/PhysRev.89.472 1400:10.1073/pnas.78.3.1309 1346:10.1073/pnas.78.4.1989 1279:Nobel Prize in Physics 1257:Dicke was awarded the 1136:gravitational constant 1132:Dirac had hypothesized 1000:, Dicke completed his 36:relies excessively on 2762:American cosmologists 2140:Dicke, R. H. (1970). 2081:Astrophysical Journal 2043:Astrophysical Journal 1294:descent, was born in 1199:Robert Woodrow Wilson 1088:equivalence principle 581:Large-scale structure 559:Shape of the universe 275:Elliott Cresson Medal 170:Princeton, New Jersey 2544:Princeton University 2463:"Robert Henry Dicke" 2442:search.amphilsoc.org 2438:"APS Member History" 2413:"Robert Henry Dicke" 1228:Copernican principle 1191:accidental detection 1183:David Todd Wilkinson 1018:Radiation Laboratory 1006:Princeton University 986:Princeton University 893:Astronomy portal 851:background radiation 828:List of cosmologists 190:Princeton University 2670:1962PhRv..125.2163D 2641:1968ApJ...154..891P 2612:1976PhRvL..36..551W 2574:1988Sci...242..908K 2538:Savani, Jacquelyn. 2509:2020RvMP...92c0501P 2368:on 29 December 2010 2302:1941RScI...12..444M 2202:1987PhRvL..59.2607W 2093:1965ApJ...142..414D 2056:1965ApJ...142..419P 1982:1961Natur.192..440D 1947:1967PhRvL..18..313D 1912:1964AnPhy..26..442R 1877:1961PhRv..124..925B 1842:1957RvMP...29..363D 1807:1953PhRv...89..472D 1677:1997PhT....50i..92H 1602:1946RScI...17..268D 1559:1959Sci...129..621D 1520:1962Sci...138..653D 1481:1967Sci...157..960D 1440:1974Sci...184..419D 1391:1981PNAS...78.1309D 1337:1981PNAS...78.1989D 1226:application of the 1143:age of the universe 1065:Charles Hard Townes 998:St. Louis, Missouri 593:Structure formation 485:Friedmann equations 375:Age of the universe 339:Part of a series on 151:St. Louis, Missouri 1659:(September 1997). 1582:Dicke, RH (1946). 1104:Brans–Dicke theory 1084:general relativity 1049:gyromagnetic ratio 1047:and measuring the 932:Robert Henry Dicke 632:Dark Energy Survey 576:Large quasar group 345:Physical cosmology 311:Lee Alvin DuBridge 215:Brans–Dicke theory 137:Robert Henry Dicke 2392:www.nasonline.org 2388:"Robert H. Dicke" 2311:10.1063/1.1769919 2196:(22): 2607–2610. 1976:(4801): 440–441. 1900:Annals of Physics 1773:Los Angeles Times 1747:978-981-314-250-3 1611:10.1063/1.1770483 1553:(3349): 621–624. 1514:(3541): 653–664. 1434:(4135): 419–429. 1296:Barrow-in-Furness 1243:lock-in amplifier 1134:that because the 1028:and designed the 1002:bachelor's degree 929: 928: 600: 599: 442: 441: 334: 333: 289:Scientific career 207:lock-in amplifier 121: 120: 113: 95: 60:"Robert H. Dicke" 2824: 2681: 2652: 2623: 2593: 2548: 2547: 2535: 2529: 2528: 2494: 2485: 2479: 2478: 2476: 2474: 2459: 2453: 2452: 2450: 2448: 2434: 2428: 2427: 2425: 2423: 2409: 2403: 2402: 2400: 2398: 2384: 2378: 2377: 2375: 2373: 2358: 2352: 2351: 2349: 2347: 2336: 2330: 2329: 2322: 2316: 2315: 2313: 2281: 2275: 2274: 2272: 2270: 2259: 2253: 2252: 2250: 2248: 2228: 2222: 2221: 2185: 2179: 2178: 2166: 2156: 2150: 2149: 2147: 2137: 2131: 2130: 2128: 2126: 2111: 2105: 2104: 2076: 2070: 2069: 2067: 2033: 2027: 2026: 2008: 2002: 2001: 1990:10.1038/192440a0 1965: 1959: 1958: 1930: 1924: 1923: 1895: 1889: 1888: 1860: 1854: 1853: 1825: 1819: 1818: 1790: 1784: 1783: 1781: 1779: 1764: 1758: 1757: 1756: 1754: 1722: 1716: 1715: 1713: 1711: 1697: 1691: 1690: 1688: 1686:10.1063/1.881921 1657:Wilkinson, David 1645: 1631: 1613: 1578: 1539: 1502: 1492: 1459: 1422: 1412: 1402: 1385:(3): 1309–1312. 1368: 1358: 1348: 1331:(4): 1989–1993. 1215:critical density 1203:Dicke radiometer 1187:Dicke radiometer 1151:selection effect 1092:Mach's principle 1060:for gamma rays. 1058:Mössbauer effect 1030:Dicke radiometer 959: 958: 955: 954: 951: 948: 945: 942: 921: 914: 907: 891: 890: 889: 878: 877: 571:Galaxy formation 531:Lambda-CDM model 520: 519: 512:Components  394: 393: 355: 336: 335: 330: 306:Doctoral advisor 283: 245: 243: 223:Dicke radiometer 205:Inventor of the 165: 146: 144: 123: 122: 116: 109: 105: 102: 96: 94: 53: 29: 21: 2832: 2831: 2827: 2826: 2825: 2823: 2822: 2821: 2732: 2731: 2688: 2600:Phys. 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Dicke 117: 106: 100: 97: 54: 52: 46: 42:primary sources 30: 17: 12: 11: 5: 2830: 2820: 2819: 2814: 2809: 2804: 2799: 2794: 2789: 2784: 2779: 2774: 2769: 2764: 2759: 2754: 2749: 2744: 2730: 2729: 2724: 2719: 2714: 2709: 2704: 2694: 2687: 2686:External links 2684: 2683: 2682: 2653: 2649:10.1086/149811 2624: 2594: 2555: 2552: 2550: 2549: 2530: 2480: 2467:NobelPrize.org 2454: 2429: 2404: 2379: 2353: 2331: 2317: 2276: 2254: 2223: 2180: 2173: 2151: 2132: 2120:Wondrium Daily 2106: 2101:10.1086/148306 2071: 2065:10.1086/148307 2028: 2021: 2003: 1960: 1925: 1906:(3): 442–517. 1890: 1855: 1836:(3): 363–376. 1820: 1785: 1759: 1746: 1717: 1692: 1653:Peebles, James 1639: 1637: 1634: 1633: 1632: 1596:(7): 268–275. 1579: 1540: 1503: 1465:"Solar Models" 1460: 1423: 1369: 1313: 1310: 1287: 1284: 1201:(also using a 993: 990: 970:atomic physics 927: 926: 924: 923: 916: 909: 901: 898: 897: 896: 895: 883: 869: 868: 865: 864: 859: 854: 847: 844: 839: 838: 835: 834: 831: 830: 823: 822: 817: 812: 807: 802: 797: 792: 787: 782: 777: 772: 767: 762: 757: 752: 747: 742: 737: 732: 727: 722: 717: 712: 707: 702: 697: 692: 687: 682: 677: 671: 670: 667: 666: 663: 662: 659: 658: 651: 649: 644: 639: 634: 629: 624: 619: 613: 608: 607: 604: 603: 598: 597: 596: 595: 583: 578: 573: 561: 553: 552: 548: 547: 546: 545: 533: 525: 524: 518: 511: 510: 507: 506: 503: 502: 497: 492: 487: 475: 470: 457: 450: 449: 446: 445: 440: 439: 438: 437: 435:Neutrino (CNB) 425: 417: 416: 412: 411: 410: 409: 392: 390:Early universe 389: 388: 385: 384: 383: 382: 377: 372: 357: 356: 348: 347: 341: 340: 332: 331: 323: 322: 318: 317: 314: 313: 308: 302: 301: 296: 292: 291: 285: 284: 261: 257: 256: 253: 249: 248: 237: 233: 232: 230: 226: 225: 203: 202:Known for 199: 198: 187: 183: 182: 179: 175: 174: 168: 166:(aged 80) 160: 156: 155: 149: 136: 134: 130: 129: 126: 119: 118: 33: 31: 24: 15: 9: 6: 4: 3: 2: 2829: 2818: 2815: 2813: 2810: 2808: 2805: 2803: 2800: 2798: 2795: 2793: 2790: 2788: 2785: 2783: 2780: 2778: 2775: 2773: 2770: 2768: 2765: 2763: 2760: 2758: 2755: 2753: 2750: 2748: 2745: 2743: 2740: 2739: 2737: 2728: 2725: 2723: 2720: 2718: 2715: 2713: 2710: 2708: 2705: 2702: 2700: 2695: 2693: 2690: 2689: 2679: 2675: 2671: 2667: 2663: 2659: 2654: 2650: 2646: 2642: 2638: 2634: 2630: 2625: 2621: 2617: 2613: 2609: 2605: 2601: 2595: 2591: 2587: 2583: 2579: 2575: 2571: 2568:(4880): 908. 2567: 2563: 2558: 2557: 2545: 2541: 2534: 2526: 2522: 2518: 2514: 2510: 2506: 2503:(3): 030501. 2502: 2498: 2491: 2484: 2468: 2464: 2458: 2443: 2439: 2433: 2418: 2414: 2408: 2393: 2389: 2383: 2367: 2363: 2357: 2341: 2335: 2327: 2321: 2312: 2307: 2303: 2299: 2295: 2291: 2287: 2280: 2264: 2258: 2242: 2238: 2234: 2227: 2219: 2215: 2211: 2207: 2203: 2199: 2195: 2191: 2184: 2176: 2174:0-691-07428-3 2170: 2165: 2164: 2155: 2146: 2145: 2136: 2121: 2117: 2110: 2102: 2098: 2094: 2090: 2086: 2082: 2075: 2066: 2061: 2057: 2053: 2049: 2045: 2044: 2039: 2032: 2024: 2022:0-521-35808-6 2018: 2014: 2007: 1999: 1995: 1991: 1987: 1983: 1979: 1975: 1971: 1964: 1956: 1952: 1948: 1944: 1940: 1936: 1929: 1921: 1917: 1913: 1909: 1905: 1901: 1894: 1886: 1882: 1878: 1874: 1870: 1866: 1859: 1851: 1847: 1843: 1839: 1835: 1831: 1824: 1816: 1812: 1808: 1804: 1800: 1796: 1789: 1774: 1770: 1763: 1749: 1743: 1739: 1735: 1731: 1727: 1721: 1706: 1702: 1696: 1687: 1682: 1678: 1674: 1670: 1666: 1665:Physics Today 1662: 1658: 1654: 1650: 1644: 1640: 1629: 1625: 1621: 1617: 1612: 1607: 1603: 1599: 1595: 1591: 1590: 1585: 1580: 1576: 1572: 1568: 1564: 1560: 1556: 1552: 1548: 1547: 1541: 1537: 1533: 1529: 1525: 1521: 1517: 1513: 1509: 1504: 1500: 1496: 1491: 1486: 1482: 1478: 1475:(3791): 960. 1474: 1470: 1466: 1461: 1457: 1453: 1449: 1445: 1441: 1437: 1433: 1429: 1424: 1420: 1416: 1411: 1406: 1401: 1396: 1392: 1388: 1384: 1381: 1380: 1375: 1370: 1366: 1362: 1357: 1352: 1347: 1342: 1338: 1334: 1330: 1327: 1326: 1321: 1316: 1315: 1309: 1306: 1302: 1299: 1297: 1293: 1283: 1280: 1276: 1272: 1268: 1264: 1260: 1255: 1251: 1248: 1247:Martin Harwit 1244: 1239: 1237: 1233: 1229: 1224: 1220: 1216: 1211: 1208: 1204: 1200: 1196: 1192: 1188: 1184: 1180: 1176: 1172: 1167: 1165: 1160: 1159:main sequence 1156: 1152: 1148: 1144: 1140: 1137: 1133: 1129: 1127: 1124: 1120: 1117: 1113: 1109: 1108:Carl H. 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Princeton University
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lock-in amplifier
Dicke model
Brans–Dicke theory
Dicke effect
Dicke radiometer
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Physics
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Lee Alvin DuBridge

Physical cosmology
Full-sky image derived from nine years' WMAP data

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