Sextant

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Sextant Page 31

by David Barrie


  and voyage of the Beagle, 211, 215

  Newfoundland, 89

  Newgrange, Ireland, 23

  Newton, Isaac, 31, 60, 67, 73, 300n12

  nighttime visibility at sea, 15–16

  “noble savage” literary concept, 114

  Noir Island, 53, 206

  Nootka Sound, 138–39, 146, 152–53

  Norfolk, 162–63

  Norfolk Island, 133

  Norie, J. W., 83

  Normandy, 5

  North Atlantic, 5, 49, 87

  North Pacific, xv

  North Sea, 302n2

  Northern Light, 227

  Northwest Passage, 87, 87n, 150–51, 167–68

  Nouvelle-Cythère (New Cythera), 118

  Nova Scotia, 9, 15

  Nuestra Señora de Covadonga, 55–56

  Nuka Hiva (Nukahiva), 236, 236n

  nutation, 58n

  Oahu, 152

  observatories, 60, 226

  occultation of stars, 65n

  ocean currents, 34

  octant, 32

  The Odyssey (Homer), 16–17

  On the Origin of Species (Darwin), 217

  Orkney Islands, 61, 302n2

  Otway, Robert, 200

  Otway Water, 202

  Owen, William Fitzwilliam, 299n9

  Pacific Islanders, 118, 262–65. See also Polynesian navigation

  Pacific Northwest, 143

  Pacific Ocean, 87, 233–36. See also specific locations

  Pandora, 43–44, 134

  Papua New Guinea, 158

  parallax, 76, 300n6

  Paris Observatory, 65

  Parliament (British), xvii, 215

  Pasley, Thomas, 159

  pendulum clocks, 59, 63, 65

  Peru, xiv, 210

  Philip II, 62

  Philip III, 62, 64

  Philippines, xiv, 55–56, 126

  Piailug, 263

  Picard, Jean, 60, 65

  Pitcairn Island, 1, 44

  Pitt, Thomas, 142–43, 155–56

  Plains of Abraham, Battle of, 10

  planets, 16

  Pleiades, 17, 24, 271

  pocket watches, 146

  Polaris

  and Alcyone’s crossing to Azores, 273–74

  and altitude/latitude relationship, 25, 25–26, 26n, 57

  and animal migrations, 23

  and Nautical Almanac star charts, 16

  Shakespeare on, 26–27n

  pollution, 47

  Polo, Marco, 27

  Polynesian navigation, xix, 118, 262–65, 303n1

  Polynesian Triangle, 90

  Porpoise, 177–80

  Port Dalrymple, 162

  Port Discovery, 149

  Port Famine, 196–97, 199–200

  Port Jackson, 159–61, 163, 166–67, 172–75, 180–81

  Port Royal, 304n16

  Port Tamar, 229

  Portland Yacht Club, 8

  Portuguese navigators, 27–28, 58–59

  Practical Navigator (Moore), 237

  The Practice of Navigation and Nautical Astronomy (Raper), 83–84, 221

  precession of equinoxes, 58n

  predecessors of the sextant, 27–32

  prehistoric humans, 23–24, 284–85

  prime meridian, 59

  Prince of Wales, 45, 301n1

  Prinz Eugen, 301n1

  prizes for longitude solution, 62–66, 67, 75, 78

  Providence, 157–58, 159

  provisions for sea journeys

  and Alcyone’s crossing to Azores, 271

  and Cook’s explorations, 89, 94, 95

  and Mendaña’s explorations, xiv

  and preparations for Atlantic crossing, 11

  and routine at sea, 48

  and the Shackleton expedition, 242–43

  Ptolemy, 17, 58

  “PZX Triangle,” 69, 71

  Quadra, Don Juan Francisco de la Bodega y, 152–53

  quadrants, xv, 35, 61, 66, 105, 125

  Quebec, 10

  Queensland, 97, 173

  Quirós, Pedro Fernández de, xvi

  Raban, Jonathan, 142

  radar, 9, 268

  radio communication

  and Lloyd’s Register of Ships, 219n

  radio direction-finding (RDF), 5, 9, 46, 47, 267, 268, 273

  radiotelephones, 46–47

  reach of BBC broadcasts, 193

  and Saecwen’s Atlantic crossing, 137, 218–19, 219n, 240

  and safety at sea, xiii

  and time signatures, 226

  The Rake’s Progress (Hogarth), 66

  Ramillies, 51

  Ramsden, Jesse, 75

  Raper, Henry, 83–84, 221

  reflecting circle, 74, 188, 188n

  reflecting quadrant, 31, 31–32

  Regulus, 274

  relativity theory, 279

  relevance of celestial navigation, 282

  Reliance, 159–60, 168

  religion, xiii–xiv

  Requisite Tables, 80, 82

  Resolution

  and Bligh’s background, 37

  and Cook’s explorations, 90–91, 93, 94

  in Kamchatka, 129

  in New Zealand, 106–7

  timekeeping equipment of, 104

  and Vancouver’s career, 138, 145–46

  revival of interest in sextants, xx

  Richards, George, 217

  Riddle of the Sands (Childers), 240

  The Rime of the Ancient Mariner (Coleridge), 104

  Ring of Brodgar, 303n7

  Rio de Janeiro, 211

  Ripple Passage, 151

  “The Roar” (sandbank), 167

  Robinson Crusoe (Defoe), 159, 232

  Robinson Crusoe Island, 54–55

  Roches Douvres reef, 7

  Roden Crater, 283–84

  Rogers, Jeremy, 270

  Rolla, 181

  Roman culture, 58, 303n1

  Rossel Island, 120

  “rotator log,” 233

  Round Island, 267

  Royal Naval Academy, 82

  Royal Naval College, 200, 226

  Royal Naval Reserve, 241

  Royal Navy

  and Bougainville’s explorations, 115

  and Cook’s explorations, 88

  and hydrography, 86

  and marine chronometers, 226

  and McMullin, 6

  officer salaries, 82

  and the Shackleton expedition, 242

  and the Straits of Magellan, 194

  royal observatories, 60, 65, 187

  Royal Society

  and Bougainville’s explorations, 113

  and Cook’s explorations, 88, 89, 94

  Harrison proposed for admission, 78

  and La Pérouse’s explorations, 125

  and lunar-distance method, 76

  and Vancouver’s explorations, 154

  “running survey” method, 96, 146, 169, 203

  Ruskin, John, 269–70

  Russian Empire, 129

  Sable Island, 13, 14–15, 229

  Saecwen

  and close passing of other ships, 122–23

  landfall in England, 267–70

  McMullin’s acquisition of, 5–7

  navigation equipment, 45–47, 68–70

  and North Atlantic weather, 109–13

  and preparations for Atlantic crossing, 8, 11–12

  and “rotator log,” 233

  “sag,” 34

  Sailing Alone Around the World (Slocum), 229–30

  Sakhalin, 126

  Samoa, 129, 238

  San Cristóbal, xv

  Sands, Bobby, 274

  Santa Clara, São Miguel, 276

  Santa Cruz Islands, xviii, 134

  Santa Isabel, xv

  São Miguel, 275–76

  satellite navigation systems, 279–83, 299n11, 302n3. See also Global Positioning System (GPS)

  satellite phones, 219, 272

  Saturn, 274

  Schoute
n, Willem Corneliszoon, 194

  Scilly, Isles of, 33, 33n, 50, 62, 267, 268

  Scorpio, 254

  Scotland, 5

  scurvy

  and Anson’s explorations, 52, 54

  and Bougainville’s explorations, 121

  and Flinders’s explorations, 172, 175

  and La Pérouse’s explorations, 127, 131–32, 133

  and Mendaña’s explorations, xv

  prevention of, 302n10

  sea mounts, 4

  seals, 23

  seaman’s quadrant, 29–30

  seasickness, 13

  seasons, 58

  The Seasons (Thomson), 199

  sedentary lifestyles, 285

  self-steering mechanisms, 48, 137, 302n4

  Selkirk, Alexander, 232

  Seven Years’ War, 10

  sextants

  and Alcyone’s crossing to Azores, 271, 272, 275

  and altitude of Polaris, 25

  and Bligh’s explorations, 38

  contrasted with GPS, 280

  and Cook’s explorations, 105

  design and operation of, 19–21

  and double-reflection principle, 30

  early versions of, 31–32, 300n12

  estimating user error, 311n8

  first working model, 74–75

  and Flinders’s explorations, 188, 188n

  and hydrographic surveys, 61

  and La Pérouse’s explorations, 125, 136

  and land-based exploration, xx

  and lunar-distance method, 82

  operation described, 300n6

  precision of, 265

  predecessors of, 27–32

  and Saecwen’s navigation equipment, 50

  and Shackleton expedition, 243, 248, 252, 254, 262

  and Slocum’s circumnavigation, 233–36

  and solutions to longitude problem, 66

  types of, 18–19

  and the U.S. Navy, 282

  use of term, 299n8

  and Vancouver’s explorations, 146

  and voyage of the Beagle, 198, 208–9

  and zenith distance, 19

  Shackleton, Ernest

  crossing of South Georgia Island, 259–60

  escape from pack ice, 247–50

  James Caird journey, 251–59

  and loss of Endurance, 244–47

  organization of expedition, 241–42

  and rescue of expedition members, 260–61

  stranded in pack ice, 241–44

  use of celestial navigation, xviii

  Shakespeare, William, 26, 26n

  sharks, 47

  Shipping Forecast (BBC Radio), 217

  ship’s logs, 48, 48n

  shoals, 4–5

  Shovell, Cloudesley, 50, 62, 268

  sight-reduction tables, 223–24, 272

  single-handed sailing, 313n22. See also Slocum, Joshua

  Skyring, William, 201

  Skyring Water, 202

  “skyspaces,” 283–84

  Slocum, Joshua, xviii, xix, 22, 57, 207, 227–38

  small-boat voyages, xx

  Smalls Lighthouse, 219–20, 219n

  Solander, Daniel, 89

  solar declination, 28, 58, 237

  solar flares, 282–83

  Solomon Islands, xvi–xvii, 121, 125, 133–34, 196–97n

  soundings, 4–5, 267

  South America Pilot, 231

  South Atlantic, 92

  South China Sea, 280

  South Georgia Island, 92, 242, 251, 255–59, 262

  South Pacific, 90, 105

  South Sandwich Islands, 92

  South Seas, 87

  southern continent debate, 87, 93

  Southern Cross, 253

  Southern Hemisphere, 168

  Southern Ocean, 92–93, 240, 255

  Spain, 85, 138–39, 147, 149–53

  Spanish Armament, 138–39

  “Spanish Ladies” (song), 33n

  spherical geometry, 69

  Spice Islands, 194

  spiritual significance of celestial navigation, 286–87

  Spray, xviii, 207, 227–38

  St. Agnes, 50

  St. Helena, 75–76, 76n, 82, 106

  St. Lawrence River, 10, 89

  St. Martin’s Cove, 208

  St. Petersburg Academy, 73

  St. Pierre, 11

  St. Vincent, 158

  Star of Gladness, 263

  Staten Island, 209

  station pointers, 62

  steering compasses, 49–50, 170

  “Stella Maris,” 27. See also Polaris

  Sterne, Laurence, 191

  Stevenson, Robert Louis, 238

  Stokes, Pringle, 195–201

  Stonehenge, 23–24

  storm warning systems, 216

  Strait of Juan de Fuca, 147

  Straits of Magellan

  Admiralty chart, 234–35

  and Bougainville’s explorations, 115

  discovery of, 194–95

  and FitzRoy’s travels, 216

  and Port Famine, 199–200

  and Slocum’s circumnavigation, 229

  and voyage of the Beagle, 201–2, 204–5

  Stromness, South Georgia, 260

  submarine telegraph cables, 84, 226

  summer solstice, 23–24

  Summer Triangle, 16

  Sumner, Thomas, 219–22

  Sumner Line, 222

  sun, 20, 20–21, 26, 69, 233, 274, 300n6

  sun compasses, 23

  Supplement to the Voyage of Bougainville (Diderot), 114

  supplies for sea voyages. See provisions for sea journeys

  surveys, 11

  Surville, Jean de, xvi

  Swallow, 115, 121

  Swift, Jonathan, 168–69n

  Sydney, Australia, 163

  Tahiti

  accuracy of location for, 62n

  and Bligh’s explorations, 43, 158

  and Bougainville’s explorations, 115–18

  and Cook’s explorations, 88, 90–91

  and Flinders’s explorations, 188

  and mutiny of Bounty crew, 37

  and Polynesian navigational skills, 263, 264

  and Vancouver’s explorations, 144

  and voyage of the Beagle, 211

  Tail of the Bank, 22, 36

  Taiwan, 126

  Tamar Bay, 196

  Tamar River, 162

  Tanamo, 219, 219n, 269

  tangent screw, 75

  Tasmania, 135, 161–63, 169n, 171

  telegraph, 84, 215–16, 226

  theodolites, 146, 169, 207

  Thetis, 200, 212–14

  Thistle, John, 170

  Thomson, James, 199

  tides and tidal currents

  Agulhas Current, 182

  and astronomy, 24–25

  Bass Strait, 161

  and Batavia wreck, 51

  Cape Horn, 53–54

  and Cook’s explorations, 97

  and dead reckoning, 34

  and departures, 272

  and early humans, 23

  Elephant Island, 249

  English Channel, 5, 167

  Great Barrier Reef, 100–101

  Gulf Stream, 18

  and La Pérouse’s explorations, 127, 132, 143

  Labrador Current, 18

  and lunar motion, 25–26

  Mont St. Michel, 3, 15n

  and natural navigation methods, 314n27

  Pacific Northwest, 143, 147–48, 149, 151–53

  and pack ice, 242

  and position errors, 267–68, 275

  and satellite navigation, 282

  Straits of Magellan, 203, 206, 229

  and Thetis wreck, 214

  Torres Strait, 158

  and voyage of the Beagle, 212

  Tierra del Fuego

  and Anson’s explorations, 53

  and Bougainville’s explorations, 115

  and Cook’s explorations, 92

  disc
overy of, 194–95

  and voyage of the Beagle, 201, 203–8, 204–5

  Timor, 39, 42–43, 175

  tin clock, 228, 236

  Tinian, 55

  Titanic, 45

  Tofoa (Tofua), 38, 41

  Tom Thumb, 160

  Tonga Islands, 37, 91, 133

  Torres Strait

  and Bligh’s explorations, 41, 158

  and Bougainville’s explorations, 120

  and Cook’s explorations, 103

  and Flinders’s explorations, 173–74, 175, 178, 182

  and Slocum’s circumnavigation, 238

  tourism, 95

  trade routes, 139, 168

  Trafalgar, Battle of, 147n

  transatlantic cruises, 7

  Transit of Venus, 75, 88, 268

  TRANSIT satellite system, 281

  “Traverses” of St. Lawrence River, 10

  treasure ships, 55–56

  Treatise on Maritim Surveying (Mackenzie), 61

  triangulation, 4–5, 61–62, 169, 239

  trigonometry, 197

  Trim (Flinders’s cat), 190–92

  Tristram Shandy (Sterne), 191

  Tropic of Capricorn, 23, 29

  true north, 4, 27, 27n

  Tukopia, 134

  Tupia, 264

  Turrell, James, 283–84

  Tuskar Rock lighthouse, 220

  Tutuila, 129

  Two-Handed Transatlantic Race, 271

  typhus, 52

  urbanization, 285

  Urville, Jules Dumont d’, 136

  U.S. Navy, 282

  Ushant, 33, 33n

  Valdés y Flores, Cayetano, 147, 147n

  Van Diemen’s Land (Tasmania), 135, 161–63, 164–65, 168–69n, 171

  Vancouver, British Columbia, 156, 308n18

  Vancouver, George

  background of, 138–39

  and crew problems, 142–43

  death, 156

  and geopolitical issues, 138–39, 147, 152–53

  navigation aids, 146

  navigational skills of, 145–48

  and Pacific Northwest explorations, 141–56

  promotions, 138–39

  on unreliability of charts, 140

  Vancouver Island, 141

  Vanikoro, 134–36

  Vaz de Camões, Luís, 28–29

  Vega, 16, 275

  Venus, 75, 88, 268

  vernier scale, 32, 75

  Véron, Pierre-Antoine, 114, 119

  VHF radios, 272

  Victoria, Australia, 189

  Victoria, British Columbia, 156

  Voyage autour du monde (Bougainville), 113–14

  Wales, William, 103–4, 105, 106, 145–46

  “Walker” log, 46, 271

  Wallis, Samuel, 62n, 115

  watches

  and Alcyone’s crossing to Azores, 273–74

  and Cook’s explorations, 105–7

  H4 model, 66–67, 78–80, 102, 104

  K1 model, 103, 106–7

  K3 model, 146

  and La Pérouse’s explorations, 125

  and Vancouver’s explorations, 146

  and voyage of the Beagle, 212

  See also chronometers; clocks

  wave patterns, 263–64

  The Weather Book (FitzRoy), 216

  weather prediction, 206

 

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