British clean-tech firm H2GO Power has partnered with Ballard Unmanned Systems in what may be the first-ever test flight of a 3D-printed, hydrogen-powered drone. According to an H2GO Power m... Read more
British clean-tech firm H2GO Power has partnered with Ballard Unmanned Systems in what may be the first-ever test flight of a 3D-printed, hydrogen-powered drone. According to an H2GO Power m... Read more
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