Advent calendar Christmas cracker joke III Behind today’s door… A joke! Atheeta Ching18 December 2016Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window) Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use. To find out more, including how to control cookies, see here: Cookie Policy This post was part of the Chalkdust 2016 Advent Calendar. ??? What do mathematicians say after Christmas dinner? ??? $\sqrt{\frac{-1}{64}}$ Atheeta Ching Atheeta is a PhD student at UCL in the area of mathematical ecology. He also has interests in evolutionary game theory and social dynamics. @atheeta2 All articles by Atheeta More from ChalkdustModelling in a heartbeatLearn how to model your heart one beat at a time ❤️In conversation with Jonathan FarleyWe spoke with Jonathan Farley about his research and experiences as a black mathematician.Creating hot iceWe created hot ice from scratch, a solution that remains liquid even below its freezing point!Is it better to run or walk in the rain?When you're caught in the rain without an umbrella... what is your best option?Debugging insect dynamicsExplain the strange dynamics of certain insects using game theoryThe evolutionary arms raceApplying game theory to evolution