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#102 - Implying calculating friction coefficients doesn't take like 1…  [+] (5 replies) 05/17/2013 on Priorities +1
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#108 - iamthedeigner (05/17/2013) [-]
It wouldn't be friction coefficients in forces parallel to the normal force, though.
#109 - skaife (05/17/2013) [-]
The thing that sticks them to the ceiling is tiny hairs on their feet. Generally, if something is going against gravity, friction is involved somewhere.
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#110 - iamthedeigner (05/17/2013) [-]
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True, but friction is calculated by the Normal Force times the coefficient of friction, static or what have you. The Normal force only applies when the surface is pushing away from the surface in this equation. As the gecko is hanging, the wall is not exerting an outward normal force, so our conventional use of static friction doesn't apply. It would use some other adhesion principle, completely different from what we call friction, same way that glue sticking isn't really friction.

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#127 - kmang (05/17/2013) [-]
the gecko is simply a hanging mass
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#128 - iamthedeigner (05/17/2013) [-]
Right, in the same way that tension has nothing to do with non-molecular friction.
#11 - Picture 05/02/2013 on Sperm Whale +16