Page 362 - NS-2 Textbook

INDEX-NAUTICAL SCIENCES 361

seawater~ 212-22; breakers and surf, 216; characteristics of, tides: causes of, 220-21; ebb, 220; flood, 220-21; neap, 220;
212-15; color of, 214-15; currents In, 218-20; salts of, spring, 220; tidal currents and bores, 221-22; tidal
213-14; temperahlre of, 214; tides, 220-22; waves in, energy, 222; and time, 221
215-16 trans-Alaska pipeline, 189
sonar, 339-40 Turkish straits, 192
sound, 337-40; Doppler shift of, 338; physics of, 337-38; tsunami, 204-5, 345
physiology of, 338; In the sea, 338-39 typhoons. See weather
space telescopes program, 286
spectrum, of light, 282 universe, origin of, 278-79
spectrum-lmninosity diagram, 314 Uranus, 297, 307-8
stability, of ships, 325-26
stars, 314--17; cepheid variables, 315, 317; classification of, Van Allen radiation belts, 284, 304
314-15; galaxies, 317; life cycle of, 315-16; nebulae, 316; Venus, 285-86, 297, 298-300
novae, 316; possible planets o( 287 Viktng landers, 285; spacecraft, 301-2
storm ·warning signals, 273 Voyager spacecraft, 285, 297, 304, 306-7
Strait of Gibraltar, 185
submarine, principles of operation, 325 weather, 249-77; forecasting, 275-77; fronts and storms,
Suez Canal, 192 266-74; hurricanes, 269-74; maps and charts, 277;
Sun: composition of, 293-94; energy of, 295-96; exploration satellites, 274, 276-77; seasons, 262; thunderstorms,
of, 296; sunspots, 294-95 267-69; tornadoes, 269; tropical cyclones, 269-73;
Swallow buoy, 220 typhoons,270,271-73,345
whales, 228-29
telescopes, 280-82; radiotelescopes, 282-83; reflecting, 281- winds, 260-74; circulation patterns, 260-62; and Earth's
82; refracting, 281. See also Hubble Space Telescope; space revolution, 261-62; and Earth~s rotation~ 260; monsoons,
telescopes program 263-65; prevailing, 260-61
telnperature scales, 250 work~ in physicS, 321
thermometers, 250-51
Tiananmen Square, Beijing, student revolt in (1989), 198 Yucatan Peninsula, 186, 313