3. Gecko-Inspired Adhesives — Climbing Like Nature’s Wall Master

Geckos are famous for walking across walls and ceilings with ease. Their feet have millions of microscopic hairs called setae that use molecular forces (van der Waals forces) to cling to surfaces.
Scientists have used this principle to develop:
- Dry adhesives that require no glue
- Climbing robots
- Wall-climbing gloves for humans
- Reusable tapes
These adhesives are incredibly strong yet leave no residue, just like gecko footprints.
