Quantum_ Einstein, Bohr and the Great Debate About the Nature of Reality - Manjit Kumar [205]
39 Large (2001), quoted p. 134.
40 CPAE, Vol. 8, p. 300. Letter from Einstein to Heinrich Zangger, after 10 March 1917.
41 CPAE, Vol. 8, p. 88. Letter from Einstein to Heinrich Zangger, 10 April 1915.
42 In a weak gravitational field, general relativity predicts the same bending as Newton's theory.
43 Pais (1994), quoted p. 147.
44 Brian (1996), quoted p. 101.
45 In the wake of the huge interest in his work, the first English translation of Relativity appeared in 1920.
46 CPAE, Vol. 8, p. 412, Letter from Einstein to Heinrich Zangger, 6 December 1917.
47 Pais (1982), quoted p. 309.
48 Brian (1996), quoted p. 103.
49 Calaprice (2005), quoted p. 5. Letter from Einstein to Heinrich Zangger, 3 January 1920.
50 Fölsing (1997), quoted p. 421.
51 Fölsing (1997), quoted p. 455. Letter from Einstein to Marcel Grossmann, 12 September 1920.
52 Pais (1982), quoted p. 314. Letter from Einstein to Paul Ehrenfest, 4 December 1919.
53 Everett (1979), quoted p. 153.
54 Elon (2003), quoted pp. 359–60.
55 Moore (1966), quoted p. 103.
56 Pais (1991), quoted p. 228. Postcard from Einstein to Planck, 23 October 1919.
57 CPAE, Vol. 5, p. 20. Letter from Einstein to Conrad Habicht, sometime between 30 June and 22 September 1905.
58 CPAE, Vol. 5, pp. 20–1. Letter from Einstein to Conrad Habicht, sometime between 30 June and 22 September 1905.
59 CPAE, Vol. 5, p. 21. Letter from Einstein to Conrad Habicht, sometime between 30 June and 22 September 1905.
60 Einstein (1949a), p. 47.
61 Moore (1966), quoted p. 104.
62 Moore (1966), quoted p. 106.
63 Pais (1991) quoted p. 232.
64 CPAE, Vol. 6, p. 232.
65 Fölsing (1997), quoted p. 477. Letter from Einstein to Bohr, 2 May 1920.
66 Fölsing (1997), quoted p. 477. Letter from Einstein to Paul Ehrenfest, 4 May 1920.
67 Fölsing (1997), quoted p. 477. Letter from Bohr to Einstein, 24 June 1920.
68 Pais (1994), quoted p. 40. Letter from Einstein to Hendrik Lorentz, 4 August 1920.
69 Arbeitsgemeinschaft deutscher Naturforscher zur Erhaltung reiner Wissenschaft.
70 Born (2005), p. 34. Letter from Einstein to the Borns, 9 September 1920.
71 Born (2005), p. 34. Letter from Einstein to the Borns, 9 September 1920.
72 Pais (1982), quoted p. 316. Letter from Einstein to K. Haenisch, 8 September 1920.
73 Fölsing (1997), quoted p. 512. Letter from Einstein to Paul Ehrenfest, 15 March 1922.
74 BCW, Vol. 3, pp. 691–2. Letter from Bohr to Arnold Sommerfeld, 30 April 1922.
75 What Bohr was calling electron shells were really a set of electron orbits. The primary orbits were numbered from 1 to 7, with 1 being nearest to the nucleus. Secondary orbits were designated by the letters s, p, d, f (from the terms 'sharp', 'principal', 'diffuse' and fundamental', used by spectroscopists to describe the lines in atomic spectra). The orbit nearest to the nucleus is just a single orbit and is labelled 1s, the next is a pair of orbits labelled 2s and 2p, the next a trio of orbits 3s, 3p and 3d, and so on. Orbits can hold increasing numbers of electrons the further from the nucleus they are. The s can hold 2 electrons, the p ones 6, the d ones 10, and the f ones 14.
76 Brian (1996), quoted p. 138.
77 Einstein (1993), p. 57. Letter from Einstein to Maurice Solovine, 16 July 1922.
78 See Fölsing (1997), p. 520. Letter from Einstein to Marie Curie, 11 July 1922.
79 Einstein (1949a), pp. 45–7.
80 French and Kennedy (1985), quoted p. 60.
81 Mehra and Rechenberg (1982), Vol. 1, Pt. 1, p. 358. Letter from Bohr to James Franck, 15 July 1922.
82 Moore (1966), quoted p. 116.
83 Moore (1966), quoted p. 116.
84 BCW, Vol. 4, p. 685. Letter from Bohr to Einstein, 11 November 1922.
85 Pais (1982), quoted p. 317.
86 BCW, Vol. 4, p. 686. Letter from Einstein to Bohr, 11 January 1923.
87 Pais (1991), quoted p. 308.
88 Pais (1991), quoted p. 215.
89 Bohr's banquet speech is available at www.nobelprize.org.