A new smart sprinkler offers solar power for easier lawn care.
The Oto Smart Sprinkler measures 16 x 12 x 4 inches and weighs about 6 pounds. It requires at least three hours of direct sunlight daily to charge its 5,400-mAh battery via a 2.2-watt solar panel. Users can cover up to 5,000 square feet with water thrown as far as 40 feet in a 360-degree radius.
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Oura has announced the Ring 5, a dramatically thinner smart ring that is 40 percent smaller than its predecessor. The new device maintains a week-long battery life while adding health monitoring features.
Chinese researchers have successfully tested a system capable of beaming energy to multiple moving targets at once, marking another step toward an orbiting power station.
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Scientists at Osaka Metropolitan University have developed an artificial photosynthesis device that converts sunlight, water, and carbon dioxide into formic acid without using batteries. The self-regulating electrolyzer adjusts automatically to changing light levels, simplifying the process and cutting costs.
Alex Toussaint and Clovis Piedallu have created a 40-gram autonomous drone that detects and eliminates mosquitoes in flight using their acoustic signature.