### Snowflake, the symbol of winter: different sizes, infinite shapes

Winter is coming!### The n days of Christmas

Get into the ChristMATHS spirit with the maths behind the popular Christmas carol!### Catching criminals with maths

How crime science, and the maths it uses, is helping the police fight crime### What’s your favourite set?

Here we have collected our favourite sets, from the Mandelbrot set to the Mahut-Isner set!### Visualising mathematics with 3D printing

Using modern technology to understand geometry### Feeling the love for Chalkdust T-shirts

The algebra will set your heart aflutter.### The spider witch project

Constructing a spiderweb: in the spookiest and most horrific way possible!### Hooke’s Monument

The Great Fire of London, a little-known polymath and a Monument...### Killing by numbers: the mathematics of warfare

A blast from the past. Modelling battle grounds from ancient Greece.### Issue 04 launch quiz

Tuesday 11 October, 7.15pm. Come along! Featuring hundreds of free copies of Chalkdust, free pizza, and the chance to purchase a Chalkdust T-shirt.### Man vs Maths

A review of Timothy Revell's new book, describing the hidden mathematics behind our world### Why maps are wrong

If only the Earth were flat...### The evolutionary arms race

Applying game theory to evolution### Hairy balls, cyclones and computer graphics

What can a 100-year-old result in topology say about weather and computers?### Donald in Mathmagic Land

Donald Duck learns that there is “a lot more to mathematics than two-times-two”.### Maths at EMF camp

Exploring the maths on offer at this year's UK hacker festival.### Why I hate an empty bus stop

How the queue size tells you when the next bus is coming### Mathematicians and their Gods

Believe it or not: Mathematics and Theology can coexist### Crossnumber winners, issue 03

Are you a winner?### Switching sides in a matrix equation

Looking for a neat description of this useful matrix part-inverse### Puzzles about calculus

Can you solve these puzzles about differentiation and integration?### Changing the status quo

Difficulties in designing a voting system for referenda### Tennis maths: how long should a deuce point last?

Using Markov chains to calculate some interesting tennis stats!### Constructing a sphere with 455 cups

Paper cups do not follow a hexagonal pattern and the cones do not meet at a single point, but they do make a gigantic sphere### The Housekeeper and the Professor

Memory and maths in the modern world### Stopping distances in the Highway Code are wrong

An easy equation to remember for your driving theory test, with dangerous consequences### A brief history of gravitational waves

The discovery of gravitational waves offers a new way of looking at the universe. Who knows what we will discover?### How many cups does it take to make a sphere?

The Chalkdust team set you a challenge, for which the prize is a £25 Amazon voucher...### Names for large numbers

Extending the million, billion, trillion system to much, much bigger numbers### Cracking the Guess Who? board game

Maths and Decision Theory to be the best at playing Guess Who?### The mathematics of tea-making

When-to-add-milk confusion and other related matters### Hunting for polydivisibles

The search for polydivisible numbers in different bases: how many can you find?### Carnival of Mathematics 133

This month's round up of mathematical blog posts.### Are we getting tired of Twitter?

Here is the reason why the golden era of Twitter is gone### The wonders of mathematical crochet

Hyperbolic surfaces, Klein bottles and more### What’s your favourite shape?

Read ours then send us your favourites!### Issue 03 launch quiz

How many points could you have scored at our launch quiz?### Fun with water bells

Explaining how surface tension makes water form surprising shapes### Chalkdust Issue 3 coming soon! 14/03/16

Your first peek at our Spring issue### A counterintuitive result in the theory of traffic flow

Additional roads do not imply faster travel times!### Dear Dirichlet Valentine’s Day special

Agony uncle Professor Dirichlet answers your personal problems this Valentine's Day.### How to make: a Dear Dirichlet Valentine’s Day card

Make the perfect gift for your loved one### Finding the edge of your images

How can we identify objects in photos, to diagnose cancer or predict the weather? Using gradients!### The analytics of healthcare

Simple Statistics can help businesses make informed decisions### How to tile a chessboard

Introducing polyominoes### New largest prime number discovered!

Amaze your friends with our top facts about the new largest known prime number### The Drake equation

Is there life on Mars? Or anywhere else?### Victorian maths tricks with old money

Exploring mental arithmetic tricks in T. Martin's 1842 guide, 'Pounds, shillings and pence'### Chalkdust review of the year 2015

Have you read the best of the blog?### Christmas puzzles

Something for you to solve during the post-Christmas lull### Dear Dirichlet Christmas special

Agony uncle Professor Dirichlet answers your personal problems this Christmastime.### Crossnumber winners

Are you a winner?### How to make: Christmas Special

Making gingerbread Platonic solids, Fröbel stars and Christmas flexagons### What’s your favourite function? Part II

We have received loads of feedback from people telling us their favourite function### 100 years with the Sierpinski triangle

Three ways to obtain and generalise a beautiful fractal### Weekend at MathsJam

Chalkdust visits popular maths' biggest conference### @mathslogicbot

Explaining the tautological Twitter bot### Our Favourite Functions: Part I

Because we love functions!### How to kick a conversion

Where should you choose to take a conversion kick from?### Somewhere over the rainbow

Some mathematical questions you might have wondered every time you look at one of those rainbows### How much will I win on the new National Lottery?

What difference will an extra 10 balls make?### Why is it so hard to pull two phone books apart?

Take two phone books and interleave all their pages one by one. Now try and pull them apart by their spines. Impossible, right?### Chalkdust Issue 2 coming soon! 06/10/15

Find out what's going to be inside### Number Rumbler–a new fun maths game!

Maths on Toast is a charity that aims to challenge and change the public's perception of mathematics...### Our Favourite Blogs

A selection of our favourite mathematical blogs### Can you solve these puzzles?

While we work on issue 2### Time turns backwards at the Spark Festival

The extreme weirdness of slow viscous flows, and why borrowers shouldn't use doggy paddle.### Introducing the Cuboku

Can you solve our 3D Sudoku puzzles?### Is there a perfect maths font?

Let's print your thesis in Comic Sans### Do you have too many or too few friends?

Do we have a natural limitation on the number of friends that we have?### Crossnumber winners

Are you a winner?### Thoughts on the crossnumber

Did you use meta-logic to solve the crossnumber?### Puzzles on square grids

How to make Sudoku more interesting### Pandigital square numbers

Why are there none in base 13?### Will the Universe actually end in a big rip?

What the Guardian got wrong...### Ace

How tennis players spin and slice their serves### What’s your favourite number?

Favourite numbers for many are linked to birthdays or anniversaries, but here is our take on the question### Maths for money: The Longitude Prize

When people do science for money…### What makes a good puzzle?

If you enjoyed Hannah's sweets then you'll love these...### Can we do good more effectively?

Choosing which charity we donate money to shouldn't be an entirely emotional decision.### Review of Birth of a Theorem

Cédric Villani’s Birth of a Theorem tells the story of a mathematical theorem### The statistics of a squeaky bum

Does form going into the play-offs predict your success?### For the love of puzzles

Pub ✕ maths = ?### Politics: a tweeting glance

What does Twitter have to do with politics?### Introducing the Chalkdust blog

We have some fantastic blog articles, and this is how we plan to publish them.