The first wave-slide aquatic robot has successfully crossed the Pacific Ocean

Last November, a group of four small autonomous wave-powered aquatic robots began their journey in San Francisco, embarking on an ambitious mission to traverse the vast Pacific Ocean. Fast forward to March this year, these robotic explorers successfully reached Hawaii, where they split paths according to plan. While one is now racing towards Japan, the other two have made their way to Australia. Just recently, Liquid Robotics, the California and Hawaii-based tech company behind these innovative machines, announced that the first duo of wave-skimming robots has already arrived in Australia, marking a new world record for the longest continuous operational distance covered by an autonomous machine. The Wave Gliders, each resembling a floating surfboard with an underwater wing-like mechanism, rely on the motion of the waves to propel themselves forward. Solar panels installed on the deck power the onboard sensors and communication devices. These remarkable robots are equipped with a range of sensors designed to collect vital oceanic data such as salinity levels, water temperatures, wave patterns, weather conditions, water fluorescence, and dissolved oxygen concentrations. Additionally, GPS and compass sensors ensure precise navigation throughout their voyages. Papa Mau, the Wave Glider that just completed its incredible journey to Australia, was retrieved from the waters near Hervey Bay, Bundaberg, Queensland. Over the course of nearly a year, it braved fierce storms and even curious sharks, covering approximately 9,000 nautical miles (about 16,668 kilometers). Along the way, it collected and transmitted valuable scientific data, including insights into the chlorophyll blooms across the equatorial Pacific region. Its partner, Benjamin, is expected to reach Australia early next year. Meanwhile, another member of the quartet initially bound for Japan appears to have returned to Hawaii for maintenance before continuing its expedition. Collectively, this trans-Pacific voyage—dubbed PacX (Pacific Crossing)—was undertaken primarily to showcase the capabilities of the Wave Glider in terms of research and exploration. As these robotic pioneers continue their missions, they’re paving the way for future advancements in marine science and technology. For now, the story of Papa Mau serves as a testament to human ingenuity and our growing ability to explore Earth’s final frontier—the ocean.

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