Chinese scientists have created a prototype of a robot that can switch from a solid state to a liquid state and vice versa.
Matter magazine indicates that scientists from the Chinese University of Hong Kong announced that this robot was made of tiny magnetic particles of neodymium (Nd), iron (Fe) and boron (B) immersed in gallium (Ga). The melting temperature of the resulting substance is 29.8 degrees Celsius, and during the experiments, scientists were able to teach the robot to move and carry the load.
In a solid state, this robot can carry a payload 30 times its own weight. To convert to a liquid state, it must be placed between magnets with fixed magnetic fields, and in this case there is no need for a heat source.
This magnet can bypass obstacles and climb walls, and in one experiment, scientists forced it to transfer a light-emitting diode (LED) to the board, fix it, and light it.