Recently Tim Hutton and Adam Goucher have been playing around with hyperbolic tesselations. That has produced a {4,3,5} honeycomb grid for the reaction-diffusion simulator Ready, which Adam talked about on his blog a couple of days ago. Tim has also made a much simpler toy to play with in your browser: a visualisation of mirror tilings (the Wythoff construction) in spaces with…
George Green: Nottingham’s Magnificent Mathematician
We don’t regard him as a miller, I’m afraid, we regard him as a very eminent mathematician whose work today is still being used in major industries and concerns. – George Saunders, descendant of George Green, on being asked a question about bags of flour on the Alan Clifford show on BBC Radio Nottingham of…
Zaha Hadid’s design for the Science Museum’s new maths hall is certainly something

For a while, the Science Museum has been forming groups and making noises and tickling rich people with the aim of working out how they’re going to update their rather neglected maths hall. Yesterday they made an unexpectedly positive announcement: they’ve been given £5 million by rich people David and Claudia Harding, and Dame Zaha Hadid has drawn up a…
GeoGebra in 3D: ThreeoGebra!

GeoGebra, the Aperiodical’s official Favourite Thing for Messing About With Geometry, has just bumped up to version 5. With that bigger number comes another dimension – GeoGebra now supports three-dimensional geometry!
Puzzlebomb – September 2014
Puzzlebomb is a monthly puzzle compendium. Issue 33 of Puzzlebomb, for September 2014, can be found here: Puzzlebomb – Issue 33 – September 2014 The solutions to Issue 33 can be found here: Puzzlebomb – Issue 33 – September 2014 – Solutions Previous issues of Puzzlebomb, and their solutions, can be found here.
Carnival of Mathematics 114
The next issue of the Carnival of Mathematics, rounding up blog posts from the month of August, and compiled by Murray Bourne, is now online at SquareCircleZ. The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.
The Flyspeck project is complete: we know how to stack balls!

A team led by Thomas Hales has announced a formal proof of the Kepler conjecture – one of the oldest problems in geometry – which states that no packing of equally sized spheres in 3-dimensional space is more efficient than the face-centred cubic packing (pictured right), or hexagonal close packing.