Gyrocompass | Alignment & Development | Britannica
Frontiers | Low-Cost, Deep-Sea Imaging and Analysis Tools for Deep-Sea Exploration: A Collaborative Design Study
Fundamentals of Kayak Navigation: Master the Traditional Skills and the Latest Technologies, Revised Fourth Edition: Burch, David, Burch, Tobias: 9780914025528: Amazon.com: Books
Secrets of Ancient Navigators | NOVA | PBS
Can you name 10 tools we used to navigate the seas before ECDIS? - Martek Marine