Venkatesh Rao@vgr·Sep 14, 2016@gravity_levity help?Quote TweetVenkatesh Rao@vgr·Sep 14, 2016Q: If I have a surface with grain (anisotropic) what's functional form of coeff of friction? See sketch. ~=Ellipse?1
Brian Skinner@gravity_levity·Sep 15, 2016Replying to @vgrI can't say I've seen this before (you may be surprised to learn that friction is not really understood theoretically).21
Venkatesh Rao@vgrReplying to @gravity_levitywould there be a good analogy to conductivity in an anisotropic crystal or something?12:06 AM · Sep 15, 2016