Researchers from the University of Hong Kong have unveiled a unique magnetic robot slug. It is able to deform significantly and move in confined spaces. The robot is created from a mixture of polyvinyl alcohol and neodymium magnet particles, which allows it to function as a non-Newtonian fluid. The viscosity of this material changes under force, which opens up new possibilities for maneuvering. When exposed to external magnets, the robotic slug can move, rotate, and take various shapes, including the letters O and C. It also has good conductivity of electricity, making it potentially useful for connecting electrodes. Scientists envision that this robot could find applications in medicine and other areas of research. However, before its use becomes safe, the authors of the project plan to conduct additional tests. Especially in the context of locating the device inside the human body.