MIT researchers have just created a solar-powered robot that can 3D print the entire basic structure of a building using on-site materials. A user could customize the structure any way they see fit, thanks to a vehicle with one large robotic arm with a second smaller and more precise arm at the end. The vehicle also comes equipped with a scoop, so that it can help prepare the building area and pick up building materials on its own. They recently showcased the technology by building a 12-foot high, 50-foot wide dome out of foam-insulation framework, in just 14-hours. Click here to view the first image in this week’s funny demotivational posters gallery. Continue reading for a viral video showing what happens when you shoot a glass Prince Rupert’s Drop at point blank range with a high-powered gun.