Gecko-Bots wear Gecko Boots! Imagine a robot scampering up a smooth wall or upside down across a ceiling. Canadian scientists have exploited the molecular secrets of lizard’s feet which cling to surfaces using very weak molecular interactions known as van der Waals forces (unlike strong covalent or ionic bonds). Multiplied by thousands, these weak attractions can support not only the gecko but an impressive 133 kg weight! Now, a tank-like robot uses a synthetic material, polydimethylsiloxane, to mimic van der Waal attractions. This breakthrough is better than older methods using sticky glues, energy expensive suction or vacuums, magnets, spines or claws..which all have their limitations. I only wish the bots were as colorful as the geckos!
Watch the video in the link