FAYETTEVILLE, Ark. -- It's not a bird. It's not a plane. For Fayetteville's Tony Hardin, though, it's his preferred way of flying. The powered parachute appears to most to be some sort of bicycle ...
The Zephyr is a solar-powered unmanned aerial vehicle that operates in the stratosphere, charging its batteries during the day via solar panels and relying on battery power overnight. Amprius’ ...
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