3D printers are the future! Some people are using these machines to create casts for broken limbs, living cells or even just a miniature copy of a person.
The team at Carbon3D developed an inverted 3D printer and, as you can see in the video below, it is amazing. The device can print a complex structure like an Eiffel Tower in lest than 7 minutes taking advantage of a novel technology called CLIP.
Instead of the usual mechanic steps, Carbon 3D opted for a chemical equilibrium between a UV-light that trigger the polymerization of the resin and Oxygen that
The idea is well thought-out as you should definitely see the movie: