Fig. 3From: Prototyping a thermal walker that can walk on a hot horizontal surface with a simple gait(From [8], ©2015 IEEE)Walking principle. a Walker stands upright on a hot surface, b right leg is lifted up and the leg behaves as a pendulum. Left leg supports the body, c the body swings back toward upright posture, d swing leg lands on the hot surface, e legs switch their rolesBack to article page