A roundup of what's attracting attention over at The Aperiodical with Christian Perfect, Peter Rowlett and Katie Steckles. Find out what posts are attracting the attention of our readers, causing comment or piquing our interest this week. The Aperiodical is a mathematics magazine/blog aimed at people interested in mathematics who want to read stuff. We post news stories related to maths, opinion pieces, interesting things we’ve found, accounts of monthly MathsJams, maths videos, and feature articles, as well as posts from our own blogs. We also host the Carnival of Mathematics, a monthly blogging carnival.