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Re: Contact Area and its Relation to Friction?
Paul is right. It's not the surface area.
and since it's not what is it? (and this is just my thoughts here)
The surface we are dealing with is not normal. It's complex, it has threads, and some of thes threads are in contact with the wheel. so looking at the thread to wheel interaction is a start. I would look at the shape of the thread under your wheel when they are in contact. How can you use the fact that the thread is glued to the carpet mat as an advantage? The carpet is 3 dimensional. can projecting into the carpet be an advantage, can there even be a "best shape" for these projections relative to the carpet fibers? Don't think at the 1 square inch level, think at the .1sq mm level. How do I get the fibers to do more for me than the other guy? How can I trap them, bend them and make them do my bidding? Don't think about pushing down, think about pulling across. Find the exact right combination of shape, projection and force direction and you will solve this puzzle.
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