Natures wonders: How geckos adhere (Introduction)

by David Turell @, Wednesday, December 03, 2014, 15:45 (1876 days ago) @ David Turell

Lots of little hairs:

"Geckos can climb a variety of surfaces, including smooth glass. Their sticky toes have inspired climbing devices such as Spider-Man gloves. The toe pads on the underside of gecko feet contain tiny hair-like structures called setae. The setae adhere to contacted surfaces through frictional forces as well as forces between molecules, called van der Waals forces. These tiny structures are so strong that the setae on a single foot can support 20 times the gecko's body weight."

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