## News from the world of Maths

On a rainy night last month, in an ancient hall down a hidden alleyway in the centre of London, Bernard Silverman, Chief Scientific Advisor to the Home Office, revealed a surprising secret... ancient mathematics is at the heart of a very modern game of hide and seek.

Our planet is shaped by the oceans, the dynamic geology and the changing climate. It teems with life and we, in particular, have a massive impact as we build homes, grow food, travel and feed our ever-hungry need for energy. Mathematics is vital in understanding all of these, which is why 2013 has been declared as the year for the Mathematics of Planet Earth.

If you've never heard of *cubic Hamiltonian graphs* before then take a look at Christopher Manning's wonderful cubic Hamiltonian graph builder. No, really, do! We too had never heard of them and now we think they are the bee's knees!

This month 70 teenage girls from nineteen countries including Bulgaria, Saudi Arabia and Finland came to the University of Cambridge to participate in the inaugural European Girls' Mathematical Olympiad (EGMO).

The *Plus* office has opened in Barcelona! The weather is fine, the architecture is spectacular and everyone has been very friendly. And, importantly, the food is delicious! From the welcoming dinner with the conference organisers (and a delicious glass of port), to the focaccia de xocolata from the cafe round the corner to the pigs skin tapas we tried last night!

Today sees the launch of *The Aperiodical*, a new maths
magazine/blog aimed at people interested in mathematics who want to
read stuff. *Aperiodical* will post news stories related to maths, opinion pieces,
maths
videos, feature articles, as well as blog posts. It will also publish accounts of monthly MathsJams and host the Carnival of Mathematics, a monthly blogging carnival.

*Plus*postcards.