3D printing is a term that I’ve been hearing more and more of recently. It all started when my freshman roommate received a 3D printed model of Wilson hall as a gift. I’ve also heard that 3D printers can also make human organs, which I think is one of the coolest things I’ve ever heard. I mean, if printing organs can become more common, think about what this could mean for people on the organ transplant list. Although this may seem like something new, it isn’t. It all started in 1984 with Chuck Hall’s invention of the 3D printer. These printers were mainly used to print scale models of houses for architects. We’ve come a long way from the 1980s, even being able to 3D print materials via a printing pen. Most materials used for 3D printers are wood, metal, and photopolymer. 3D printers can make toys, engines, tools, and jewelry, but most impressive is printing real, actual food. This food is mostly used for astronauts. The coolest thing I learned about 3D printing today, though, is how printing organs works. Today, we can make anything from heart valves to ears to livers to kidneys. This is possible thanks to the invention of Bioink, which is made up of living cells. I look forward to seeing what 3D printing holds for our future.