fig5

Figure 5. Rotation and transformation of liquid metal in the solution under an external electric field. (A) Experimental case of rotating liquid metal droplet under direct current, reproduced with permission from Sheng et al.^[29]. (B) Schematic for rotating liquid metal droplet under direct current. (C) Resonant oscillation phenomenon of liquid metal droplet under matching alternating field, reproduced with permission from Yang et al.^[35]. (D) Electric field on the liquid metal-electrolyte interface before and after applying external electric field, reproduced with permission from Yang et al.^[35].