magnetic compass, sextants, protractors, theodolite, astrolabe, flashlights, celestial navigation, armillary sphere, magnetic declination, altimeters, thermometers, sundials, maps, calculators, binoculars, mapmaking, spyglass, longitudes, phonographs, guides, handsaws, pendulums, awls, styluses, paddles, hilts, axes, staplers, echo sounder, flints, adzes, erasers, zodiacs, pencils, stereoscopes, navigation, orient, torches, periscopes, snowshoes, global positioning system, bibles, arrows, radios, needlenose pliers, toothbrushes, ballista, navigators, fishhooks, hiders, spectroscope, scopes, stopwatches, gyrocompass, stereopticon, chronometer, logarithms, stud finder, gages, cartography, eyepieces, runes, paperclips, sabots, prisms, paperweights, sounders, planchette, cordage, tomahawks, beacons, signposts, multimeter, combs, octagons, aneroid, guidebooks, birchbark, orienteering, clocks, qibla, divining rod, sunstone, automata, thimbles, atlases, halyards, cartesian coordinates, windsock, trajectories, electromagnets, eggbeater, toothbrush, globes, ratlines, yokes, pens, wind vane, missals, zithers, fletching, dugout canoe, microscopes, ploughs, compass, looms, plows, stoves, timepieces, typewriters, barometers, dials, hoes, pianos, sextant, spoons, stills, windmills, coffins, motorcycles