This is not a robot and that is not the significance of this discovery.
The robot shaped device is externally controlled through magnetic fields. It has no internal moving parts or controllers. It is a solid block that is transformed into a liquid and then reformed into a solid shape. The important things are that this material has a high degree of strength as a solid and a relatively low melting point of 95F. There are a lot of interesting possibilities for something that is a solid at common temperatures, but can be transformed into a liquid at non-dangerous temperatures. Robotics, though, is not one of the uses.
