A technology that interests me the most is the 3D printer! the 3D printer is a printer that can print different items. It was first invented in the 1980s, but then it didn't go public until around 2010. I think it is really interesting because I've seen food made out of one, and I've seen people who made cars, phone cases, and more, with them! They cost around $2,000... There are also portable printers, but those cost around $200