Waves, winds, clouds, stars, sun, moon, birds, and fish speak volumes to experienced seagoers. Many navigators today also rely on signals transmitted from shore or satellite.

Fisherman using a GPS
Safety-conscious mariners rely on the Global Positioning System for bearings at sea. A GPS monitor on board a vessel receives signals from orbiting satellites, giving the skipper exact latitude and longitude coordinates §.
photo © Si-Tex Marine Electronics, Inc.

More Information:

Ocean Planet Exhibition Floorplan

gene carl feldman ( (301) 286-9428

Judith Gradwohl, Smithsonian Institution (Curator/Ocean Planet)