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Faraday, Maxwell, and the Electromagnetic Field

Page 31

by Nancy Forbes

and the boiler incident, 276n10

  Faraday's letters to, 32–34, 38, 274n6, 275n3, 275n4, 275n11, 276n8

  Faraday's letters to James (brother), 275n2

  friendship with Faraday, 22, 37

  Abbott, Robert, 275n2

  Aberdeen

  and King's College, 178

  Maxwell as chair of natural philosophy at Marischal College, 166

  Maxwell as professor, 150

  Maxwell as seen by his students, 283n9

  Maxwell's commitment to working men's colleges, 155

  Maxwell's feelings during journey, 169

  Maxwell's journey with color box, 168

  and Maxwell's romance, 173

  and Maxwell's study of Saturn's rings, 171

  Aberdeen University, 150, 155

  Académie des Sciences, 79

  acoustic vibrations, 70, 80

  action at a distance

  Ampère's theory of, 11, 64

  and current flow in chemical solution, 83–84

  electrostatic effects of, 88

  and George Biddell Airy, 108

  and Hertz, 257, 290n20

  and induction, 88, 90

  instantaneous, 81, 96, 197

  and lines of force, 156–157, 164, 204

  and Maxwell's theory of electromagnetic fields, 253

  and Newtonian traditions, 106

  Newton's comments on, 285n12

  Oersted's discovery of, 54

  straight-line, 87

  and theory of Franz Ernst Neumann, 254–256

  and theory of Wilhelm Weber, 184, 232, 254–256

  Adams, John Couch, 171, 213

  Adams, William Grylls, 213

  Adams Prize, 171–172, 213

  Admiralty, 38

  aether

  “Dynamical Theory” of, 264–266

  and Edmond Becquerel, 104

  luminiferous, 102

  and the propagation of light, 196

  and remarks from Faraday's letter to Richard Phillips, 278n5

  and transmission of magnetic lines of force, 107–108

  aether drift, 12, 266–267, 291n8

  Airy, George Biddell, 108, 160, 172, 278n11, 282n8

  Aix, 282n8

  Albemarle Street, London, 25–26, 124, 182

  Albert, Prince Consort, 123

  Alexander, Fanny, 24

  “All Things Bright and Beautiful” (Alexander), 24

  Alps, 33–34, 36, 253

  alternating current, 113, 190, 252

  amber, electrical properties of, 41, 43–45

  America

  and Albert Michelson, 266

  and Benjamin Franklin, 44

  Britain's war against, 19

  and Josiah Willard Gibbs, 247, 259

  and Marconi's transatlantic signals, 290n3

  popularity of Conversations on Chemistry (Marcet), 24

  and Samuel Morse, 113

  and Samuel Pierpoint Langley, 233

  Sandeman's epitaph, 274n1

  ammonia, 95

  Ampère, André Marie

  Ampère's Law, 284n3

  and electrical current acting as a magnet, 207

  equations of, 57–58

  explanation of why it took so long to discover the magnetic effect, 276n4

  Faraday's correspondence with, 64–66

  Faraday's description of skepticism of theories, 276n11

  Faraday's letter, 277n12

  and instantaneous action at a distance, 197

  and Maxwell's comments on Faraday's experimental methods, 282n5

  on Oersted's discovery, 50–55

  and relationship with Faraday, 32–33

  and theory of electricity and magnetism, 11, 76–78

  and the theory of electrostatic forces, 96

  Andersen, Hans Christian, 49

  Anderson, Sergeant, 64, 95, 276n10

  anion, 86

  Annalen der Physik und Chemie (journal), 253

  Annales des postes télégraphes et téléphones (journal), 288n1

  Annals of Philosophy (journal), 57, 61, 65, 276n5

  anode, 86–87, 96, 277n10

  Antinori, Vincenzo, 79–80

  Apostles (discussion group), 145–146, 149, 155, 158, 217, 235

  Appleton, Edward Victor, 290n3

  Appleyard, Rollo, 287n5, 289n18

  Apreece, Jane. See Davy, Jane

  Arabian Nights, 21, 274n3

  Arago, François, 12, 67, 74–75

  Archimedes, 104

  “Are There Any Real Analogies in Nature?” (Maxwell), 146

  argon, 242

  Armstrong, William, 95

  Arthur's Seat, 133

  Astronomer Royal, London, 108, 172

  Astronomer Royal, Sydney, 213

  Athenaeum (magazine), 112

  Athenaeum Club, 63

  Atlantic Ocean, 13, 113, 199–200, 260

  Atlantic telegraph, 89, 156, 172

  Atlantic Telegraph Company, 113–114, 172, 200, 283n5

  atomic weight, 82, 106–107

  atoms, 17, 82–85, 102, 192, 198, 285n13. See also molecules

  Bacon, Francis, 43, 143, 155

  Baltimore, 290n6

  Bancalari, Michele, 107

  Banks, Joseph, 27

  Barlow, John, 278–279n13

  Barnard, Edward, 55

  Barnard, George, 58–59

  Barnett, Miles, 290n3

  Bath, 253, 257

  batteries

  and Alessandro Volta, 47–48

  described, 22–23, 48

  Faraday's experimentation with, 26, 58–59, 65–66, 70–71, 76–87, 99

  and Henry Cavendish, 233

  invention of, 11, 48

  and Luigi Galvani, 47

  Maxwell's experimentation with, 187–190

  and Oersted, 50–52

  and Wilhelm Weber, 105

  and William Hyde Wollaston, 53

  and William Thomson, 245

  Bavaria, 25

  Becquerel, Edmond, 104, 107

  Belfast University, 167

  Bell, Alexander Graham, 234, 287n1

  Bell, Alexander Melville, 234, 287n1

  Bence Jones, Henry, 104, 274n6, 274n9, 275n9, 278n1

  Bentley, Richard, 46, 275n3, 285n12

  Berg, Ernst J., 287n5

  Berkeley, George, 155

  Berlin University, 253, 264

  Bern, 264

  Bernoulli, Daniel, 175

  Berzelius, Jöns Jacob, 39, 275n12

  Bible, 129, 218

  Biggs, Charles Henry Walker, 245

  Birmingham University, 249

  bismuth, 104–106, 122

  black-body radiation, 13

  Blackburn, Hugh, 155

  Blackburn, Jemima, née Wedderburn, 155

  Blandford Street, London, 20

  Bohr, Niels, 265

  Bologna, 47, 260

  Boltzmann, Ludwig, 176, 234, 242

  Bonaparte, Napoleon. See Napoleon

  Bowers, Brian, 275n1, 275n9

  Brande, William, 37–39, 62

  brass, 47, 90

  Brighton, 174

  Britain

  and birth of Michael Faraday, 19–20

  Einstein's visit to, 270

  electrostatics study in, 87

  and Humphry Davy, 28–30, 33–34

  and lighthouses, 92

  and the manufacture of glass, 63–64

  and the Mathematical Tripos, 147

  and Richard Glazebrook, 231

  and the telegraph, 113, 243

  and the work of Immanuel Kant, 136

  British Association for the Advancement of Science, 95–96, 199, 212, 253

  British Broadcasting Corporation, 283n9

  British East India Company, 128

  British Museum, London, 121

  Brittany, 31

  Brontë, Emily, 19

  Brooke, Rupert, 145

  Bruni, Giardino, 42

  Brussels, 36

  Buchanan, James (US presiden
t), 114

  Bunsen burner, 15

  Burns, Robert, 134, 144, 281n1

  Butler, Henry Montagu, 151, 238–239

  Byron, George Gordon, 115

  Cabeo, Niccolo, 43–44

  caloric, 46

  Cambridge Philosophical Society, 154, 165–166, 279n22

  Cambridge University

  and coach William Hopkins, 281n4

  and F. D. Maurice, 149

  Faraday and William Whewell, 86, 96

  and mathematics, 147

  and Maxwell's annual visits, 218

  and Maxwell's death, 239

  and Maxwell's departure, 168

  and Maxwell's partnership with Charles Hockin, 219

  and Maxwell's professorship in experimental physics, 225

  and “On Faraday's Lines of Force” (Maxwell), 115

  specifications for new laboratory building, 227

  and the Tripos, 147

  and William Thomson, 96

  camera lucida, 138

  Campbell, Lewis

  on death of Maxwell's father, 167–168

  description of Maxwell, 234

  and letters from Maxwell, 137–141, 169, 228

  and Maxwell's biography, 132–133

  at St. Andrews University, 224

  wedding of, 174

  Canterbury, 151

  capacitance, 245

  capacitor, 45, 245. See also Leyden jar

  Cape of Good Hope, 177, 283n10, 286n10

  carbon, 34, 251

  carbon arc, 119, 280n2

  carbon dioxide, 34

  Carlisle, 166

  Carlton Terrace, London, 27

  Carlyle, Thomas, 155, 288n2

  Cassini, space vehicle, 172

  cathode, 86–87, 96, 277n10

  cation, 86

  caustic lime, 37

  Cavendish, Henry, 229, 233

  Cavendish, William. See Devonshire, Duke of

  Cavendish Laboratory, Cambridge, 227–242, 249, 264, 284n2

  Cay, Charles Hope, 203

  Cay, Frances, 166

  Cay, John, 128

  Cay, Lizzie, 166

  Cay, Robert Dundas, 166

  Cay, William Dyce, 168

  Cayley, Arthur, 281n4

  Center for European Nuclear Research (CERN), 271

  chaos theory, 235, 287n3

  charcoal, 34, 138

  Chaucer, Geoffrey, 155

  chemical action, 47, 81, 182

  Chemical Society of London, 280n15

  chemistry, 31, 36, 39, 46–49, 135, 181

  chi square distribution, 283n8

  Chladni, Ernst, 69–70

  Chladni figures, 69–70

  chlorine, 26

  Christianity, 19, 217, 253

  Christian Socialist movement, 149

  Christie, Samuel, 274n1

  Christmas Lectures, 62, 95

  chromaticity diagram, 282n3

  chronoscope, 102

  Chrystal, George, 230

  Church of England, 150, 152, 166, 181

  Church of Scotland, 19, 217, 283n9

  City Philosophical Society, 21–22, 26, 37–38, 48, 55, 57

  Clarendon Laboratory, Oxford, 227

  Clausius, Rudolf, 175

  Clerk, Sir George (Maxwell's uncle), 127

  Clerk Maxwell, Elizabeth, 129

  Clerk Maxwell, Frances, née Cay, 128–130, 166

  Clerk Maxwell, James. See Maxwell, James Clerk

  Clerk Maxwell, James (Maxwell's grandfather), 128

  Clerk Maxwell, John, 127, 130, 132, 134, 139, 167, 215

  Clerk Maxwell, Katherine, née Dewar, 173, 176–179, 199–200, 213, 215–218, 225, 236–239

  Cleveland, 267

  cobalt, 100–101, 107

  coherer, 260, 290n2

  Colchester, 41

  Coleridge, Samuel Taylor, 29, 57

  Coliseum, Rome, 36

  College of Physicians, 41

  color blindness, 154

  color box, 154–155, 168, 177, 183, 200, 213

  color photograph, 183, 284n2

  color top, 154, 168, 182

  color triangle, 282n2

  color vision, 41, 179, 182, 200, 212, 224

  combustion, 50

  Comin’ through the Rye (Burns), 144–145

  Committee for the Improvement of Glass for Optical Purposes, 63

  compass, 11, 12, 40, 42, 50–54, 67, 99, 161, 177, 232

  conical refraction, 230

  control theory, 151

  Conversations on Chemistry (Marcet), 24

  Cooke, William Fothergill, 113, 243

  Copernicus, Nicolaus, 42

  Copley Medal, 108

  copper

  with alternating metal plates, 23

  and compass needles, 67

  as a conductor, 186

  and electromagnetic induction, 122

  and François Arago's experiments, 74–79

  having its own magnetic field, 199–200

  in making batteries, 23, 48

  plating, 87

  spinning disc, 12

  and the telegraph, 113–114

  copper chloride, 87

  copper-plated jam jars, 138, 155

  copper sulfate, 97

  Cornwall, 260

  Corsock, 179

  Coulomb, Charles Augustin, 11, 45–46, 49–50, 87, 96, 108, 197, 233

  Coulson, Charles Alfred, 201, 285n13

  Cowper, William, 155

  Crimean War, 121, 280n3

  Critique of Pure Reason (Kant), 48

  Cunnaeus , Andreas, 45

  curl, 10, 20, 133, 221–222, 248, 284n5, 288n5, 289n9

  Dalen, Niels Gustav, 120

  Dalton, John, 83

  Dance, William, 27–28

  Danish-Norwegian-English Telegraph Company, 243

  Darby, Abraham, 134

  Davy, Humphry

  awarded the Napoleon Prize, 29–30

  and biographer John Ayrton Paris, 274n10

  death of, 67–68

  in Europe, 30–35

  and experiments with batteries, 48

  and experiments with currents and magnets, 40

  and Faraday as assistant, 28–29

  as Faraday's mentor, 18

  impressions of Volta, 275n6

  lectures and experiments, 25–31

  letter about the Napoleon Prize, 274n11

  and the miner's safety lamp, 37

  remarks about eyes, 274n7

  temporary blindness of, 28

  Davy, Jane, 29, 32–34, 275n3

  de la Rive, Auguste, 34, 274n3

  de la Rive, Gaspard, 34

  de la Roche, Henri, 27

  de Launay, Louis, 276n4, 286n5

  De Magnete (Gilbert), 41

  Denmark, 40, 49, 243

  Descartes, René, 133

  Devonshire, Duke of, 225, 229

  Dewar, Daniel, 173

  Dialogue on the Two Chief World Systems (Marcet), 24

  diamagnetism, 12, 104, 106–107, 109

  diamonds, 33

  dimensional analysis, 211

  Dirac, Paul, 265

  displacement current

  and electromagnetic effects, 204–205

  and Experimental Researches in Electricity (Faraday), 212

  and Hertz's experiments, 254

  and Maxwell's Demon, 219–220

  and Maxwell's experiments, 193, 207, 210, 230, 242

  Maxwell's theory on, 270

  “On Physical Lines of Force” (Maxwell) part 3, 196–197

  divergence, 221–222, 248, 281n5, 284n4

  DNA, discovery of, 228

  Dover, 56, 119–120

  Dresden, 253

  Dublin, 250–251

  du Fay, Charles, 11, 44–45

  Duhem, Pierre, 289n14

  Dumas, M., 275n8

  Dumfries, 132

  Dutch, 123, 263

  “Dynamical Theory of the Electromagnetic Field, A” (Maxwell), 241, 285n2, 285n3, 286n7


  dynamo, 12, 74–75

  Dyson, Freeman, 9, 210, 262

  Earth

  and the “aether drift,” 266

  composition of, 42

  curvature of, 260, 290n3

  as a giant magnet, 11, 42

  is not the center of the universe, 42

  magnetic field of, 54, 200

  measuring the density of, 229

  as a return conductor in telegraphy, 246

  “The Earth as a Return Conductor,” (Heaviside), 288n3

  Earth science, 136

  École Polytechnique, Paris, 53–54

  eddy currents, 83

  Edinburgh, 127–129, 133, 234

  Edinburgh Academy, 131, 199

  Edinburgh University, 133–135, 222, 225

  Edison, Thomas Alva, 261

  Einstein, Albert

  and E = mc2, 268–269, 291n11

  on Maxwell, 270, 287, 290n5, 291n12

  nominee for Nobel Prize, 120

  on photons, 264–265

  “On the Electrodynamics of Moving Bodies,” 291n11

  and special theory of relativity, 13, 17, 210, 268

  Elba, 35

  Elector of Bavaria, 25

  electrical displacement, 192–193

  electrical fluids, 46, 82, 84–85, 103

  Electrical Papers (Heaviside), 288n3, 288n4, 288n6, 289n10, 289n12

  electrical power supply and distribution systems, 113, 190, 261

  electric charges

  and Benjamin Franklin, 11

  conductors of, 186

  and electric fields, 263

  and electric potential, 288n5

  and electrostatic forces, 191–195, 209, 219

  as end points of lines of induction, 90

  and Heaviside's equations, 246–250

  and inductive capacity, 185

  and laws of electricity, 159, 183–184

  and magnetic poles, 108

  and Maxwell's equations, 288n8

  and six types of electrical effects, 82

  and Wilhelm Weber's theory, 184

  electric current

  Ampère's explanation of, 276n4

  continuous, 74–77

  Davy's experiments with, 26

  and effect on compass needle, 11, 40

  and electrical conflicts, 50–51

  and electrical displacement, 193, 207

  and electric eels, 81

  and electromagnetic waves, 251

  and electrotonic state, 85, 111

  and Experimental Researches in Electricity (Faraday), 82

  and Faraday's law of induction, 187

  and Faraday's new words, 86

  and insulators, 160

  and magneto-electric currents, 81

  and Maxwell's theory, 17

  and reaction of substances, 39

  as source of magnetism, 54

  and Volta's battery, 11, 23, 47–48

  electric current density, 248, 288n8

  electric current elements, 55, 66

  electric displacement, 192–193, 263

  electric eels, 81

  electric fields, 161, 194

  electric fish, 81

  electric flux, 159–160, 192, 207, 284n8

  electric generator, 112, 119. See also dynamo

  Electrician, The (journal), 245, 249, 288n3, 289n10, 290n1

 

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