This robot will weed your garden—watch how it works

I love gardening, but when the heat index hits triple digits and the mosquitoes are out in full force, weeding my multiple garden beds is not a pleasant job. We have robots that vacuum, robots that mop, and robots that clean pools and windows, so it may come as no surprise that we now have a robot that will weed the garden. The Tertill garden-weeding robot looks like a small, green Roomba. Topped with a solar panel, it has relatively large tires for navigating cultivated dirt, and it communicates with a smartphone via Bluetooth. On the underneath of the chassis is a tiny weed-whacker.