Charles(Chuck) Hull, co-founder of 3D Systems, invented stereolithography.
Chuck Hull copyrighted the term "Stereolithography" and patented his invention as "Apparatus for Production of Three-Dimensional Objects by Stereolithography".
DTM invented selective laser sintering(SLS) machine.
Hull's invention finally was built and it was called the Stereolithographic Apparatus(SLA).
Scientists 3D printed a human bladder and successfully implanted it.
Cornell University made a 3D printer where it could print out and make food and then NASA jumped on the project to make food for astronauts in space.
Mr. Atala describes 3D Printing a working human kidney that can be successfully implanted into the human body. This is an outbreak in technological improvement.