Fig. 13
From: Prototyping a thermal walker that can walk on a hot horizontal surface with a simple gait

Top view of the thermal walker walking on a heated horizontal surface. L = 16 cm, weight shift = 2 mm, heating temp. = 130 °C. a t = 0 s, b t = 0.21 s, c t = 0.38 s, d t = 0.58 s, e t = 0.79 s