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Engineers develop a fully 3D-printed electrospray engine that can power tiny satellites
An electrospray engine applies an electric field to a conductive liquid, generating a high-speed jet of tiny droplets that ...
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Rails check: Hybrid electric locomotives are becoming closer to being a reality
Canadian National Railway Company (NYSE:CNI) announced on Thursday the launch of its new medium horsepower hybrid electric locomotive developed in collaboration with Knoxville Locomotive Works.