Essay
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?
Correct Answer:
Verified
This is an example of van der ...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q48: Which figure shows an example of a
Q49: Which has the greatest concentration of hydrogen
Q50: An atom of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg" alt="An atom
Q51: The opposite of hydrophobic is<br>A) hydrophilic.<br>B) hygroscopic.<br>C)
Q52: Which symbol represents an atom with the
Q54: The atomic number of an element is
Q55: The difference between an acid and a
Q56: Which statement about an atom is true?<br>A)
Q57: The _ in an aqueous solution is
Q58: When two nonpolar molecules are in close