To cause and control particle motion using a strong magnetic field and to enable the reaction analysis with the motion by impressing the strong magnetic field to a system having a solid particle dispersed in an electrolyte medium to cause the circular motion of the solid particle.

Electrolytic current flows on the solid particle when an electrochemical reaction occurs on the particle. Then, when the strong outside magnetic field is applied to the non-equilibrium system, the particle exhibits a certain response and for example, performs the circular motion. A device for causing the motor of zinc powder is formed by utilizing the principle. In the device, zinc powder and a solution are charged into a glass vessel 1, a super conducting coil 3 is arranged through an acrylic vessel 2 and a parallel light source 5 and a VTR 6 are arranged with a mirror 4 to confirm the circular motor of zinc powder.