Leaves are falling, a chilly wind is blowing and I can hear the distant thunder of undergrads’ hooves as they stampede towards my department. Yes, Summer is giving way to Autumn, so it’s time for another Aperiodcast. If you had “42 days” in the “when will the next Aperiodcast appear” sweepstake, report to the comments section below for your prize.

In this episode Peter and Christian were enjoying the comforts of their respective homes, while Katie was preparing to be sawn in half by a crazed Matt Parker at the British Science Festival. We talked about:

- Bill Thurston has died
- A glider on an aperiodic cellular automaton exists! (and the alternative glider Tim Hutton posted on Google+)
- Knitty spiked icosahedron
- Puzzlebomb – September 2012
- Matt Parker needs help building a domino computer

As always, we’re keen to hear about your mathematical exploits at root@aperiodical.com, and you still have eight days to submit items for the 90th Carnival of Mathematics, which you can do through our form.

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