3D-printing with liquid metal at room temperature

This minuscule metal structure was printed.

Video screenshot by Amanda Kooser/CNET)

Somewhere on campus at North Carolina State University, an interesting thing happened. Researchers took a liquid metal alloy of gallium and indium at room temperature and made more than just a puddle. They made a 3D figure. They made a wire. They even made tiny letters. The remarkable occurrence was that it all held together.
The researchers have spent years developing a method of 3D-printing liquid metal at room temperature. The resulting paper, “3D Printing of Free Standing Liquid Metal…

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