Remember the graph paper you used at school, the kind that’s covered with tiny squares? It’s the perfect illustration of what mathematicians call a “periodic tiling of space”, with shapes covering an ...

Frank A. Farris does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Strong magnetic fields keep the equator spinning faster than the poles and prevent a rotation flip, even as stars slow down with age. (Nanowerk News) Researchers at Nagoya University in Japan have ...