The Hairy Ball theorem, proved by Henri Poincaré in 1885, demonstrates that it's impossible to create a perfectly smooth hair ...

Some standard modules for making 3d shapes with attachment support, and function forms that produce a VNF. Also included are shortcuts cylinders in each orientation and extended versions of the ...

Section of Condensed Matter Physics, National and Kapodistrian University of Athens, Panepistimioupolis, 157 84 Athens, Greece ...