gecko's ability to climb walls

What Role Do Van der Waals Forces Play?

The primary mechanism behind geckos' climbing ability is the utilization of Van der Waals forces. These are weak intermolecular forces that arise from temporary dipoles created when molecules are in close proximity. The spatulae on the gecko's feet come so close to the surface that they can induce these forces, allowing geckos to stick without the need for any adhesive substances.

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