Under Project Proticity, Unither Bioelectronics conducted the first piloted hydrogen-electric-powered helicopter flight in May. Credit: Unither Bioelectronics Having conducted the first piloted flight ...
For more than two months, a helicopter has been hard at work removing dead trees and stumps from the reservoir using a ...
Helicopters on Mars may sound like something from a science fiction novel — or perhaps just a typical "Doctor Who" episode. But actually, they're not fully confined to the world of sci-fi; after all, ...
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