Pick and Place (IMAGE)
Caption
Stuttgart-based Max Planck researchers have used gallium as an adhesive to grip a glass sphere with a movable punch model. The metal is located at the bottom of the punch model. Once it touches the glass sphere, the researchers heat the gallium and then cool it off again, so that it connects to the glass. This way, they can retract the sphere from the surface.
Credit
MPI for Intelligent Systems
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