sextants, seamanship, navigational, zodiacs, navigators, trigonometry, geodesy, astronomy, oceanography, voyaging, echo sounder, nautical, constellations, cartography, windjammer, astrometry, nathaniel bowditch, sailing, bathymetric, celestial mechanics, surfman, steersmen, theodolite, telerobotics, gliders, spyglass, bathyscaphe, pilotage, gradiometer, magnetic compass, gyrocompass, compass, magnetic declination, hydrographic, mariners, loran, aquanaut, differential calculus, geomorphology, aeronauts, gemology, dories, sundials, ethnobotany, balsa raft, bushcraft, electromagnetics, telegraphy, scuba diving, geologies, rocketry, comparative anatomy, trireme, scuba dive, spectrographic, astrolabe, trigonometric, lighthouses, extragalactic, gunnery, archeology, windsurf, inertial guidance, pararescue, eratosthenes, hydrodynamics, artificer, jujutsu, spectroscope, underwater archeology, altimetry, catboat, hydrofoils, caravel, astrophotography, celestial sphere, armillary sphere, stargazer, rickover, hyperbolic geometry, prewriting, canting, geoid, seaplanes, spitzbergen, orienteering, shallop, longitudes, avocational, craft, inertial navigation system, lagrangian, geodynamic, radiotelephone, icefield, botany, antisubmarine, plate tectonics, spherical geometry, gipsy moth, mnemonics, microworld

navigation, pilotage, piloting

astronavigation