Image courtesy of Coco Kou (Carbon Robotics) A new farming robot can weed up to 20 acres in a day, saving labor and chemicals. The "Autonomous Weeder" uses lasers, a supercomputer, GPS, and computer vision. Weeds are a costly nuisance for farms of all sizes, so the robot could drastically improve farmers' bottom lines. Farmers, prepare for the future: there's a new robot on the block that can slay 100,000 weeds per hour—all night, every night. The Autonomous Weeder uses carbon dioxide lasers to annihilate 100,000 weeds per hour. Image courtesy of Coco Kou/Carbon Robotics This "Autonomous Weeder" stands out from other robots in its class because it uses high-powered lasers to zap pesky sprouts into oblivion. And because the bot uses thermal energy to eradicate weeds, rather than a physical intervention like tilling, the machine doesn't disturb the soil below. That means reduced farm costs, no more herbicides, and most importantly, happier, healthier crops.