Across
- 6. 1st US ship specifically built for ocean studies
- 8. used the sun, constellations & North Star to navigate
- 11. Tethered
- 12. 1st Latitude & Longitude System
- 14. The earliest known seafarers
- 15. Small, unmanned with an umbilical to the surface or to a submarine
- 16. Untethered robots, self contained power source, onboard computer pilot
Down
- 1. 1987; Phil Nuytten
- 2. Air ballast for vertical motion up & down, small motor for limited horizontal mobility
- 3. 1st air supplied diving hard hat with hose
- 4. 1st expedition devoted to Marine Science
- 5. Father of Oceanography
- 7. Deep Diving Submersible
- 9. Established trade routes
- 10. 1951
- 13. Developed the magnetic compass