A vehicle including a body and three legs. Each leg includes a proximal
end coupled to the body, a distal end opposite the proximal end, and an
actuator. Each actuator imparts enough acceleration to the vehicle along
an axis of the leg to cause the distal end of the leg to leave a surface
upon which it rests. Thus, the robot can pivot around one leg when the
actuator of another leg imparts an acceleration. One actuator may also
cause two legs to leave the surface. Moreover, the actuators may be
spring biased into a retracted position. Further, the body may be a
Platonic solid and the axes of the lags may pass through the vehicle's
center of gravity. Of course, the body could be a sphere while the
vehicle could be a planetary robot or a toy. Methods of traversing a
surface are also provided.