Each of the team’s microrobots is 600 micrometers tall, made of epoxy embedded with ferromagnetic neodymium-iron-boron (NdFeB ... a rotating magnetic field from two connected magnets, the ...

Each robot stands 600 micrometers tall (about half a millimeter) and contains specially embedded magnetic particles called neodymium-iron-boron (NdFeB ... field created by rotating magnets ...