# Blog

## Archive

Show me a random blog post**2019**

### Jun 2019

Proving a conjecture### Apr 2019

Harriss and other spirals### Mar 2019

realhats### Jan 2019

Christmas (2018) is over**2018**

**2017**

**2016**

**2015**

**2014**

**2013**

**2012**

## Tags

logic london underground hats raspberry pi chebyshev christmas card cross stitch machine learning geometry speed sound interpolation tennis pizza cutting trigonometry fractals programming map projections statistics news folding paper chess go dragon curves final fantasy approximation misleading statistics curvature the aperiodical nine men's morris european cup mathsjam christmas harriss spiral graph theory sorting football error bars propositional calculus craft captain scarlet mathsteroids flexagons bubble bobble palindromes arithmetic national lottery chalkdust magazine platonic solids draughts mathslogicbot polynomials braiding stickers noughts and crosses rhombicuboctahedron ternary matt parker gerry anderson sport books wool reuleaux polygons data probability reddit game of life a gamut of games coins puzzles countdown golden spiral martin gardner estimation binary games aperiodical big internet math-off royal baby latex radio 4 game show probability manchester plastic ratio twitter dataset frobel dates accuracy menace manchester science festival weather station people maths world cup rugby folding tube maps electromagnetic field javascript london triangles bodmas inline code oeis asteroids python pythagoras light pac-man php golden ratio realhats video games hexapawn## New machine unfriendly £1 coin, pt. 2

**2014-03-29**

Following my last post, I wrote to my MP (click to enlarge):

Today I received this reply (click to enlarge):

I'm excited about hearing what the Treasury has to say about it...

### Similar posts

The end of coins of constant width | New machine unfriendly £1 coin | World Cup stickers 2018, pt. 3 | World Cup stickers 2018, pt. 2 |

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