3D Printing of All-Liquid 3D Structures

A method was developed for printing 3D structures composed entirely of liquids. Using a modified 3D printer, threads of water were injected into silicone oil, sculpting tubes made of one liquid within another liquid. Threads of water between 10 microns and 1 millimeter in diameter were printed, as well as a variety of spiraling and branching shapes up to several meters in length. What's more, the material can conform to its surroundings and repeatedly change shape.