
Recent Posts
Archives
 November 2017
 October 2017
 November 2016
 May 2016
 March 2016
 February 2016
 December 2015
 September 2015
 March 2015
 February 2015
 January 2015
 December 2014
 November 2014
 October 2014
 September 2014
 August 2014
 July 2014
 June 2014
 May 2014
 April 2014
 March 2014
 February 2014
 January 2014
 December 2013
 November 2013
 October 2013
 September 2013
 August 2013
 July 2013
 June 2013
 May 2013
 April 2013
 March 2013
 February 2013
 January 2013
 December 2012
 November 2012
 October 2012
 September 2012
 August 2012
Categories
Meta
Corresponding Facebook page:
Follow me on Twitter
My Tweets
Monthly Archives: September 2013
Cipher 47: Plughole
At the moment, assuming everything has gone according to plan, I should currently be on a northwardbound train, returning from Kevin Buzzard’s talk at the Royal Society. As with some of the earlier ciphers, this is bipartite, consisting of both an image … Continue reading
Posted in Ciphers
Leave a comment
Lattice gases and conformal maps
Any fluid dynamicist would be able to tell you that fluids obey partial differential equations such as the NavierStokes equations. This macroscopic behaviour should, and indeed can, be derived from applying Newton’s laws of motion to the individual molecules in the … Continue reading
Posted in Uncategorized
1 Comment
The Whetstone of Witte
The first instance of the concept of a symbolic mathematical equation is usually attributed to Robert Recorde, a Welsh mathematician, in a 1557 book with the rather verbose title ‘The Whetstone of Witte, whiche is the seconde parte of Arithmeteke: containing the … Continue reading
Posted in Uncategorized
8 Comments
MOG
Since the conception of the European Girls’ Mathematical Olympiad (henceforth abbreviated to EGMO), the British Mathematical Olympiad Committee has run an annual national olympiad specifically for aspiring female mathematicians. The third edition of the Mathematical Olympiad for Girls (MOG) takes place … Continue reading
Posted in Uncategorized
11 Comments
Cipher 46: Hellenic Angler Leviathan
+39256408486145507991522778312122523892525408578736546 Sorry about the cryptic title and lack of hints.
Posted in Ciphers
Leave a comment
Rational approximations to Platonic solids
It is straightforward to position a cube such that its vertices are all integer coordinates. For instance, we could choose its eight vertices to be (±1, ±1, ±1). Similarly, the vertices of a regular octahedron can be positioned at cyclic permutations … Continue reading
Posted in Uncategorized
3 Comments
Desert Island Theorems
Suppose you were cast away on a desert island. You’re only allowed to take a maximum of eight known theorems with you, along with rudimentary results such as ZFC axioms together with ‘boring stuff’ such as mathematical induction over the naturals, commutativity … Continue reading
Posted in Uncategorized
16 Comments