Cardioids in coffee cups, counting with three fingers, and breakfast at Villani's.Plus the return of all your favourite fun pages.
How many did you spot?
Stories that illustrate the barriers that black mathematicians have faced in recent history.
Data scientist Jonny Brooks-Bartlett gives his views as part of Black Mathematician Month.
Meet Olubunmi Abidemi Fadipe-Joseph, an active promoter for women in mathematics from Nigeria
Nira Chamberlain, one of the UK's top 100 scientists, shares his experiences as a black mathematician.
Natalya Silcott introduces us to star polynomials!
Our first interview celebrating Black Mathematician Month
Promoting black mathematicians, and talking about building a more representative mathematical community.
Free launch party, 7.15pm. Come along!
A polygon with four and a half sides?!
While drinking beer in your favourite pub, have you ever wondered how it is produced? Find here some of the science and mathematics behind brewing.
Take a ball, divide it into parts, glue them back and get two identical copies of your ball!
A hideous equation that hides beautiful images, and much (much) more besides...
How processes used in image editing are related to mathematics!
We created hot ice from scratch, a solution that remains liquid even below its freezing point!
A quick look at how to get the most bang for your buck the next time you're in a bidding war
A summer essential or an embarrassment risk on the streets of Ibiza?
How to win a game when your expected score is 0
Did you win?
Write down a quadratic. What is the probability that it factorises? Paging Prof. Dirichet...
A crossnumber clue takes us plunging headfirst towards projective geometry
Human migration with mathematical models, data and a hands-on experiment!
Some interesting observations with the pigeonhole principle
Have a go at these puzzles, adequate for your holidays!
We take a look at the top 10 emojis!
Next time you are finished using a paper cup, create your own papercupter!
Read about our least favourite numbers in this collection from issue 5!
Discover the mysteries behind the most spectacular free-kick ever scored and how Newton can help us to simulate it.
Finding the best picture at the Leaning Tower of Pisa is all about the maths rather than the pose!
Each time you eat a croissant you might be biting more than 500 layers of dough!
We have a go at the puzzles in Daniel Griller's new book
We chat to Marcus about science communication, teaching mathematics in schools, and how to make group theory sound sexy.
Negative polygons and other mathematical creations
In the Aztec city of Atzlan, the scientist Remotep makes a revolutionary discovery
How optimising the space around a circular monument is related to supereggs
When you're caught in the rain without an umbrella... what is your best option?
Unexpected item in bagging areAAAARGGGHH here's 90p change in pennies
After 100 years, a key postulate of the third law of thermodynamics has been proven. We meet Lluis Masanes, one of the researchers responsible.
Not the new coin we want, but the new coin we need
How to make the most slices from just a few cuts of cake
New issue out now! Graphical linear algebra, slide rules and game theory in nature. Plus all your favourite fun pages.
How many did you spot?
Free launch party, 7.15pm. Come along! Free copies of Chalkdust, free pizza, and buy your own Chalkdust T-shirt.
What connects the products of twin primes with something you learnt in primary school and the number 8?
A tragic love story of shares and viral songs. To share, or not to share...
For those of you tackling this dilemma, here's your answer...
Some surprising mathematical facts
Here are some highlights of the first two years of Chalkdust!
Are you a winner?
Lindsay Lohan is really good at L'Hôpital's rule.
Why the infamous acronym needs revising.
Can you wear them and be taken mathematically seriously?
Before we say 'Goodbye' to 2016 let us highlight a few of the articles on the Chalkdust website.
Behind today's door... A book review!
This year's Chalkdust puzzle Christmas card
Winter is coming!
Get into the ChristMATHS spirit with the maths behind the popular Christmas carol!
How crime science, and the maths it uses, is helping the police fight crime
Here we have collected our favourite sets, from the Mandelbrot set to the Mahut-Isner set!
Using modern technology to understand geometry
The algebra will set your heart aflutter.
Constructing a spiderweb: in the spookiest and most horrific way possible!
The Great Fire of London, a little-known polymath and a Monument...
A blast from the past. Modelling battle grounds from ancient Greece.
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.
A review of Timothy Revell's new book, describing the hidden mathematics behind our world
If only the Earth were flat...
Applying game theory to evolution
What can a 100-year-old result in topology say about weather and computers?
Donald Duck learns that there is “a lot more to mathematics than two-times-two”.
Exploring the maths on offer at this year's UK hacker festival.
How the queue size tells you when the next bus is coming
Believe it or not: Mathematics and Theology can coexist
Are you a winner?
Looking for a neat description of this useful matrix part-inverse
Can you solve these puzzles about differentiation and integration?
Difficulties in designing a voting system for referenda
Using Markov chains to calculate some interesting tennis stats!
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
Memory and maths in the modern world
An easy equation to remember for your driving theory test, with dangerous consequences
The discovery of gravitational waves offers a new way of looking at the universe. Who knows what we will discover?
The Chalkdust team set you a challenge, for which the prize is a £25 Amazon voucher...
Extending the million, billion, trillion system to much, much bigger numbers
Maths and Decision Theory to be the best at playing Guess Who?
When-to-add-milk confusion and other related matters
The search for polydivisible numbers in different bases: how many can you find?
This month's round up of mathematical blog posts.
Here is the reason why the golden era of Twitter is gone
Hyperbolic surfaces, Klein bottles and more
Read ours then send us your favourites!
How many points could you have scored at our launch quiz?
Explaining how surface tension makes water form surprising shapes
Your first peek at our Spring issue
Additional roads do not imply faster travel times!
Agony uncle Professor Dirichlet answers your personal problems this Valentine's Day.
Make the perfect gift for your loved one
How can we identify objects in photos, to diagnose cancer or predict the weather? Using gradients!
Simple Statistics can help businesses make informed decisions
Amaze your friends with our top facts about the new largest known prime number
Is there life on Mars? Or anywhere else?
Exploring mental arithmetic tricks in T. Martin's 1842 guide, 'Pounds, shillings and pence'
Have you read the best of the blog?
Something for you to solve during the post-Christmas lull
Agony uncle Professor Dirichlet answers your personal problems this Christmastime.
Are you a winner?
Making gingerbread Platonic solids, Fröbel stars and Christmas flexagons
We have received loads of feedback from people telling us their favourite function
Three ways to obtain and generalise a beautiful fractal
Chalkdust visits popular maths' biggest conference
Explaining the tautological Twitter bot
Because we love functions!
Where should you choose to take a conversion kick from?
Some mathematical questions you might have wondered every time you look at one of those rainbows
What difference will an extra 10 balls make?
Take two phone books and interleave all their pages one by one. Now try and pull them apart by their spines. Impossible, right?
Find out what's going to be inside
Maths on Toast is a charity that aims to challenge and change the public's perception of mathematics...
A selection of our favourite mathematical blogs
While we work on issue 2
The extreme weirdness of slow viscous flows, and why borrowers shouldn't use doggy paddle.
Can you solve our 3D Sudoku puzzles?
Let's print your thesis in Comic Sans
Do we have a natural limitation on the number of friends that we have?
Are you a winner?
Did you use meta-logic to solve the crossnumber?
How to make Sudoku more interesting
Why are there none in base 13?
What the Guardian got wrong...
How tennis players spin and slice their serves
Favourite numbers for many are linked to birthdays or anniversaries, but here is our take on the question
When people do science for money…
If you enjoyed Hannah's sweets then you'll love these...
Choosing which charity we donate money to shouldn't be an entirely emotional decision.
Cédric Villani’s Birth of a Theorem tells the story of a mathematical theorem
Does form going into the play-offs predict your success?
Pub ✕ maths = ?
What does Twitter have to do with politics?
We have some fantastic blog articles, and this is how we plan to publish them.