Researchers demonstrate sustainable 3D printing by using poly(N-isopropylacrylamide) solutions (PNIPAM), which speedily and reliably turn solid by undergoing a rapid phase change when in a salt ...
Gallium is the chocolate of metals. With a melting point of 86 degrees, the stuff will literally melt in your hand, and then solidify when you put it down. This melting point can be lowered by ...