sextant Definition

periscopic, celestial navigation, astrolabe, compass, theodolite, magnetic compass, protractor, nautical, chronometer, gyrocompass, telescope, spyglass, armillary sphere, sundials, caravel, echo sounder, navigators, lightship, gnomon, wind vane, mariner, capstan, sunstone, hipparchus, altimeters, forestaff, longitude, global positioning system, yardarm, oarlocks, adze, surfman, bathyscaphe, lighthouse, plumb bob, dowsing rod, spectroscope, periscopes, celestial sphere, breeches buoy, planchette, weather vane, scow, logarithms, yantra, eggbeater, centerboard, anemometer, philae, inertial guidance, trigonometry, windsock, quill pen, mainmast, camera obscura, cosmolabe, halyards, treadle, voltmeter, binnacle, astrometry, buoys, abacus, thimbles, bosun, magnetic declination, barque, bathyscaph, trireme, celestial mechanics, yawl, zodiacs, radiometer, scrimshaw, lunar module, beam compass, dowser, brigantine, divining rod, gipsy moth, adz, caduceus, coble, astrocompass, loran, parabolic mirror, robert peary, tuning fork, whalebone, dowsing, little dipper, cruet, trysail, fishhook, horologist, autogyro, windlass, shallop, nathaniel bowditch, gillie,