3D-printing of glass now possible

Three-dimensional printing allows extremely small and complex structures to be made even in small series. A new method now allows glass to be used for this technique. As a consequence of the properties of glass, such as transparency, thermal stability and resistance to acids, the use of this material in 3D-printing opens up manifold new applications in production and research, such as optics, data transmission, and biotechnology.

(via WSJ)