Fig. 6: Liquid-free bipedal walking evaluation experiment of MMMR.
From: Multimodal magnetic miniature robot for adaptive navigation in amphibious environments

A Liquid-free bipedal walking posture captured by side camera under a variable pitch oscillating magnetic field. B Effect of oscillation angles on walking velocity at a 20∘ pitch angle. C Effect of pitch angles on walking velocity at a 90∘ oscillation angle. D Comparison of walking velocity between fixed-pitch (Bow angle of 0∘) and variable-pitch oscillating magnetic fields (Bow angle of 40∘).