The Aperiodical 

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21X competition – results

By Katie Steckles. Posted November 17, 2023



A while ago we announced a competition to win a copy of algebraic blackjack game 21X, which was recently successful on Kickstarter, smashing its funding target by an order of magnitude. If you’d like to pre-order a copy of the game, you can sign up to be notified when that’s possible.

We had over 30 entries in the competition, of which 20 achieved correct answers, and have picked a random set of winners to pass on to Naylor Games, who should be in touch with them by email in the next few days.

For anyone interested in seeing the answers, here’s what they were. As a reminder, the challenge here is to find a value for \(x\), given that \(n\) represents the number of cards, to get the total of all the card values closest to 21.

Kickstarter for algebraic blackjack game 21X launched

By Katie Steckles. Posted September 28, 2023

Today is the launch of the Kickstarter for 21X, a new card game from board game studio Naylor Games, which describes itself as ‘the Countdown numbers game meets blackjack’. The creators sent us a copy to play with, and I took it along to Manchester MathsJam for a road test. (Read on for info about how you can win a copy!)

Curvahedra Geometry

By Edmund Harriss. Posted September 25, 2018

Longtime friend of the Aperiodical, artist, mathematician and #BigMathOff semifinalist Edmund Harriss has come up with a new puzzle/toy/exploration set, developing his Curvahedra system. We asked him to explain the maths behind it in this guest post.

Curvahedra is a flexible system of connectors that can make all sorts of different things, combining puzzles (and self-created puzzles) with art. You can get your own to play with, explore, prepare for Christmas (they make great decorations, wreaths and presents) at our online store, and get 15% off with the discount code APERIODICAL.

As this is the Aperiodical, you might be most interested in how it can be used to explore mathematics. In the big math off I talked about the basic ideas behind the system, Gauss’ famous Theorema Egregium and Gauss-Bonnet theorems. A really simple version of this comes from just considering triangles, that can be built up to make this:

 



Principia Reissue Kickstarter

By Katie Steckles. Posted November 10, 2016

Spanish independent publisher Kronecker Wallis is making a new edition of Isaac Newton’s Principia Mathematicia, using a Kickstarter campaign to fund the initial print run. Here’s their video:

It looks like it’ll be a fairly pretty object, and they’ve put a lot of time and thought into choosing the paper, fonts and layout. Their Kickstarter runs for around another 24 hours, and a pledge of €45 or more will secure you a copy of the finished article.

More information

Isaac Newton’s Principia Mathematica Reissue, on Kickstarter

Curvahedra is a construction system for arty mathsy structures

By Christian Lawson-Perfect. Posted November 6, 2016

Edmund Harriss is a very good friend of the Aperiodical, and a mathematical artist of quite some renown. His latest project is CURVAHEDRA, a system of bendable boomerang-like pieces which join together to make all sorts of geometrical structures.

Kickstart the Mandelmap poster: a vintage style map of the Mandelbrot set

By Christian Lawson-Perfect. Posted April 25, 2016

Here’s something fun you might want to spend some money on: a poster of the Mandelbrot set, in the style of an old-fashioned navigation chart.

https://www.kickstarter.com/projects/billtavis/mandelmap-poster-a-vintage-style-map-of-the-mandel

The Kickstarter has already racked up many multiples of the original funding goal with three weeks still to go, so it’s at the “effectively a pre-order” stage. The posters start at \$26.

Kickstarter: Mandelmap poster by Bill Tavis.

Relatively Prime Season 3 Kickstarter

By Peter Rowlett. Posted March 9, 2016



Samuel Hansen’s Relatively Prime has now published all episodes of the second season, available at relprime.com, and the Kickstarter for Season 3 is now live. In fact, it’s so live it’s almost run its course: the third season will only be funded if at least $24,000 is pledged by Saturday 12th March 2016 at 4am GMT. At the time of writing, as I just pledged my support, the project is 30% backed.

Consider supporting this third season of stories from the mathematical domain! You can watch a video of animated Samuel telling you about the project, listen to Samuel speaking about why you should support this, or read an interview Samuel did about Relatively Prime with Shecky Riemann at Math-Frolic. To drum up your enthusiasm, you can listen to existing episodes or read our own Colin Beveridge’s recaps of season 2. Don’t delay too long, though – go to Kickstarter and pledge to support the project now!