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Geckos are lizards that are amazing climbers.A gecko can climb up a glass surface and stick to it with a single toe.Professor Kellar Autumn, along with his students and collaborators, have shown that each toe of a gecko has millions of micrometer-sized hairs and that each hair splits into hundreds of 200 nm tips that provide intimate contact with a surface.Careful measurements show that a million of these tips could easily support the animal, but it has far more.The toes stick well on hydrophilic and hydrophobic surfaces.Bending the hairs allows the gecko to detach.What kind of noncovalent force is involved in gecko sticking?
States' Rights
The rights and powers held by individual US states rather than by the federal government.
Constitutional Obligations
Refers to the duties and responsibilities mandated by a constitution that must be fulfilled by the government or its citizens.
Confederal System
A confederal system is a form of government where autonomous states or regions come together to form a loose federation, retaining most of the governance power while delegating limited powers to a central authority.
Articles Of Confederation
The original founding document of the United States that outlined a loose union of the states under a weak federal government, eventually replaced by the U.S. Constitution.
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