Perhaps one of the oldest dreams of a science-fiction future is the ability to create something where once there was nothing. If we could create solid, stable objects out of thin air, the idea of ...

3D printing is the process of making three-dimensional objects by laying thin layers of material on top of one another. Each layer is so thin that the height is barely detectable by the human eye. In ...

Murray Leinster’s short story Things Pass By, published in 1945, includes what may be the first description of 3D printers: But this constructor is both efficient and flexible. I feed magnetronic ...