Navigational AidsAn examination of the origins, history, development, and impact of the various navigational aids humans have used through the centuries. |
Common terms and phrases
accurate Aimé Argand altitude ancient Arab astrolabe Atlantic atomic clock back-staff beacons became boat buoys calculated Cape captains celestial century chart coastal color course cross-staff dead reckoning DEE CAFFARI degrees destination determining longitude developed device DGPS distance double-reflecting early Earth east electronic equator Exploration Fresnel lens geographic poles global positioning system globe GLONASS Goonhusband GPS satellites Greek Greenwich gyrocompass gyroscope hand-held harbors horizon invented islands John Hadley kilometers land latitude and longitude Leon Foucault light lighthouse LORAN-C Magellan magnetic compass magnetic field magnetic north magnetic poles magnetite mariner's astrolabe mariners marked measuring meters miles navigation system navigational aids navigational instrument needle North Star onboard Pacific Ocean Polynesians port Portugal Portuguese radio reading Royal Society sailing sailors satellite navigation scientist seafloor seamen sextant ship ship's position sight signals sounding weight speed tion vessels Vikings voyages whales winds
Popular passages
Page 124 - Systems, and a science speaker for the Medical Sciences Division at NASA-Johnson Space Center in Houston.