To conclude our report, we will summarize the findings of our calculations and simulations. Our preliminary calculations suggested that the sliding of one nanotube against another would not be smooth but that the tubes would encounter periodic potential barriers that would have to be circumvented or otherwise overcome. Qualitative analysis of visualized simulation results indicated that there is a clear preference for sliding motion among the tubes over rotation. This observation was confirmed by the calculation of two different friction coefficients, one based on a sliding simulation and the other on a rotating simulation. The fact that the sliding friction coefficient is lower than the rotating one by a factor of 10 explains this observed preference for sliding.
 
 

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