It is believed that early Pacific Islanders were able to navigate long distances by reading the changes in the long swell as they sailed the Pacific; for instan

It is believed that early Pacific Islanders were able to navigate long distances by reading the changes in the long swell as they sailed the Pacific; for instance, an island will have a "reflection" in the swell. Longer but rambling explanation: http://www.passengerplanet.com/softwarm.html http://www.passengerplanet.com/softwarm.html