Liquid Robotics’ Wave Glider robots complete first leg of their journey, set world record

After 117 days, Liquid Robotics’ Wave Gliders have completed the first leg of their journey across the Pacific Ocean. The four autonomous crafts set out for Hawaii from San Francisco last November, and have since put over 3200 nautical miles behind them — a new Guinness world record for the longest distance traveled by an unmanned wave-powered vehicle. The crafts, which convert energy from waves and currents into forward momentum, will now split up to continue the voyage across the Pacific. Two of the autonomous vehicles will cross the Mariana’s trench en route to Japan, while the other pair heads south to Australia.

Sensors on the crafts have been gathering readings such as salinity, water temperature, wave height, and weather during…

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