1. Sackmann, Juliana, 1 n. 23
2. Sagan, Carl, 1, 2, 3, 4
3. Sagittarius A*, 1
4. salt, 1, 2, 3, 4;
   1. as currency, 1
5. San Andreas Fault, California, 1, 2
6. San Francisco, 1
7. sanctions, 1
8. SatNavs, 1
9. Saturn, 1 n. 2;
10. rings, 1
11. Scarre, Chris, 1, 2
12. scavenging, 1, 2
13. science, 1, 2
14. Schmidt, Maarten, 1
15. Schulman, Larry, 1 n. 8, 2 n. 10
16. Scotland, 1, 2
17. Scott, Dave, 1
18. sea ice, 1, 2
19. sea squirt, 1
20. sea water, 1;
    1. see also sea ice
21. seabed, 1, 2
22. seas, 1, 2, 3, 4, 5 n. 2, 6 n. 3;
    1. heat, 1;
    2. salt, 1
23. seashells, 1, 2, 3
24. Seinfeld, 1
25. seismic tomography, 1
26. selectron, 1
27. semiconductors, 1
28. senses, 1, 2, 3
29. sequoias, 1
30. serotonin, 1
31. Serratia marcescens, 1
32. settlements, 1, 2;
    1. defence, 1
33. sex cells, see gametes
34. sexual differences, 1, 2
35. sexual reproduction, 1, 2, 3 n. 9
36. sexuality, 1
37. Shakespeare, William, 1, 2, 3
38. shares, 1
39. sheep, 1, 2
40. Shipman, Pat, 1
41. ships, 1, 2
42. Shockley, William, 1 n. 9
43. sickle cell anaemia, 1
44. silicon, 1, 2, 3, 4 n. 13
45. silkworms, 1
46. silver, 1 n. 15
47. Sinclair, Upton, 1
48. singularity, see black holes
49. skull, 1, 2, 3
50. slime moulds, 1 n. 19
51. smallpox, 1, 2
52. Smith, Adam, 1, 2, 3;
    1. The Wealth of Nations, 1
53. snooker, 1
54. Snow, C. P., 1
55. Snowball Earths, 1
56. sociology and sociologists, 1, 2
57. sodium, 1, 2, 3
58. Sokal, Alan, 1
59. solar flares, 1
60. Solar System, 1, 2, 3, 4 n. 18;
    1. formation, 1, 2 n. 5, 3 n. 2;
    2. gravity, 1;
    3. outer, 1 n. 2
61. soldiers, see military
62. solids, 1
63. Sommerfeld, Arnold, 1
64. sonar surveying, 1
65. sound waves, 1
66. South Africa, 1
67. South America, 1, 2, 3, 4, 5, 6, 7;
    1. see also Americas
68. South Sea Bubble, 1 n. 2
69. space, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 n. 4, 21 n. 5, 22 n. 3, 23 n. 4, 24 nn. 8, 9;
    1. curvature, 1, 2;
    2. shells, 1, 2;
    3. see also location: dual, space–time
70. Space Telescope Science Institute, Baltimore, 1 n. 23
71. space–time, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 n. 4, 14 n. 6 supra, 15 n. 4;
    1. warpage (geometry), 1, 2, 3, 4 n. 8
72. species, 1
73. speed, 1, 2, 3 n. 5;
    1. infinite, 1, 2;
    2. uniform, 1, 2;
    3. warped, 1;
    4. see also light: speed of
74. sperm, 1, 2, 3, 4 n. 6
75. spinal cord, 1
76. spindle, 1
77. sponges, 1, 2 n. 5
78. Springsteen, Bruce, 1
79. SRY (Sex-Determining Region of the Y chromosome), 1
80. stag, 1 n. 1
81. stagnation, 1
82. standard of living, 1, 2
83. Standard Model, 1
84. Stanford University, California, 1
85. Staphylococcus aureus, see MRSA
86. Star Trek, 1, 2, 3
87. starfish, 1, 2 n. 9
88. starlight, 1, 2
89. Starobinsky, Alexei, 1
90. stars, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 n. 7, 19 n. 13, 20 n. 4, 21 n. 12, 22 n. 10;
    1. see also black holes, neutron stars, supernovae, white dwarfs
91. steady state, 1 n. 5
92. steam, 1, 2, 3, 4 n. 4, 5 n. 5, 6 n. 7. 7 n. 14;
    1. power, 1
93. steam engine, 1, 2, 3, 4, 5, 6 n. 1, 7 n. 7
94. steel, 1
95. stellar winds, 1 n. 23
96. Stenger, Victor, 1
97. Stephens, Mark, see Cringely, Robert X.
98. Stiglitz, Joseph, 1;
    1. The Price of Inequality, 1
99. STM (Scanning Tunnelling Microscope), 1 n. 3
100. stock market, 1, 2, 3;
     1. see also shares
101. stomach, 1, 2;
     1. lining, 1
102. Stoppard, Tom, 1
103. stratosphere, see Earth: stratosphere
104. string theory, 1
105. strokes, 1, 2;
     1. rehabilitation, 1
106. stromatolites, 1
107. subsidy, 1
108. sugars, 1, 2;
     1. see also glucose
109. sulphuric acid, 1
110. Sumerians, 1
111. Sun: eclipse, 1, 2, 3 n. 7;
     1. envelope, 1 n. 23;
     2. flares, 1 n. 18, 2 n. 19;
     3. formation, 1 n. 5;
     4. future, 1 n. 23;
     5. heat output, 1, 2, 3 n. 21, 4 n. 15;
     6. luminosity, 1, 2 nn. 21, 22;
     7. magnetic field, 1 n. 18;
     8. mass, 1, 2, 3, 4;
     9. as nuclear reactor, 1, 2;
     10. neutrinos, 1;
     11. orbit, 1;
     12. rotation, 1 n. 18;
     13. solar cycle, 1 n. 19;
     14. sunspots, 1 n. 18;
     15. temperature, 1, 2, 3 n. 19;
     16. tidal bulge, 1 n. 23;
     17. ultraviolet radiation, 1
112. Sunday Times, The, 1
113. sunlight, 1, 2, 3, 4, 5, 6, 7 n. 21, 8 n. 1, 9 n. 8, 10 n. 6
114. supercomputers, 1
115. SuperKamiokande detector, 1 n. 7
116. supernovae, 1, 2, 3 nn. 12, 14
117. supersymmetry, 1
118. supply and demand, 1, 2, 3, 4, 5, 6
119. survival, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 n. 1
120. Susskind, Leonard, 1
121. sweating, 1, 2
122. symbiosis, 1
123. symmetry, 1, 2, 3 n. 6;
     1. rotational, 1, 2;
     2. time translation, 1, 2 n. 6;
     3. translational, 1
124. synapses, see neurons
125. synthesis, 1
126. Syria, 1
127. Sze, Arthur, 1