Robotics

Swapping batteries for hydrogen gives drones a whole new range

Researchers have built a drone that runs on hydrogen, to replace battery-powered drones that are too heavy and have too short a range. This technology could help fix power outages faster and replace dangerous helicopter missions ...

Energy & Green Tech

Off-grid buildings cut emissions with solar roof innovation

Off-grid buildings in warm climates could cut their carbon emissions by more than half and reduce energy costs to just $0.15 per kilowatt-hour through a combination of rooftop solar panel shading and thin layers of heat-absorbing ...

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