On a macroscopic scale, the physics of friction is well understood ... times than previously reported porous silicon sensors. Dip-pen nanolithography (DPN) is a powerful tool for 'writing ...
not spherical so friction is not distributed equally silikon lubrication or PTFE (Teflon) spray-paint-coating on top of the epoxy could help Chromeball sliding on a nylon washer, kept in place by a ...
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