

The Aperiodical
Christian Perfect, Peter Rowlett and Katie Steckles
Occasional(ly) mathematical blogging
Episodes
Mentioned books

Feb 13, 2026 • 26min
Mathematical Objects: A Norbert Wiener Story
A conversation about mathematics inspired by a piece of folklore. Presented by Katie Steckles and Peter Rowlett.

Jan 30, 2026 • 35min
Mathematical Objects: Certified Mathematical Object sticker with Chris Nho
A conversation about mathematics and communicating mathematics inspired by a ‘Certified Mathematical Object’ sticker. Presented by Katie Steckles and Peter Rowlett, with special guest Chris Nho from Public-Math.org.

Jan 16, 2026 • 22min
Mathematical Objects: A taxicab
A conversation about mathematics inspired by a taxicab. Presented by Katie Steckles and Peter Rowlett.

Jan 2, 2026 • 49min
Mathematical Objects: Venn diagram with Keisha Thompson
A conversation about mathematics inspired by a Venn diagram. Presented by Katie Steckles and Peter Rowlett, with special guest Keisha Thompson.
Katie mentioned the MathForEquality badges and pins.

Dec 19, 2025 • 19min
Mathematical Objects: Slice of pizza
A conversation about mathematics inspired by a slice of pizza. Presented by Katie Steckles and Peter Rowlett.

Dec 5, 2025 • 42min
Mathematical Objects: Cardioid with Dominika Vasilkova
A conversation about mathematics inspired by a light pattern in a tea cup. Presented by Katie Steckles and Peter Rowlett, with special guest Dominika Vasilkova.
Cardioids in coffee cups – Chalkdust
Cardioids in Coffee Cups – Numberphile
‘Stringuart’ String Art website (and less commercial String Art Generator)

Nov 21, 2025 • 34min
Mathematical Objects: Roman dodecahedron
A conversation about mathematics, history, games and more, inspired by a Roman dodecahedron. Presented by Katie Steckles and Peter Rowlett.

Nov 7, 2025 • 29min
Mathematical Objects: 3D wooden puzzle with Grant Sanderson
A conversation about mathematics inspired by a 3D wooden puzzle. Presented by Katie Steckles and Peter Rowlett, with special guest Grant Sanderson.

Dec 20, 2024 • 22min
Mathematical Objects: Universe of cake
A conversation about mathematics inspired by Lewis Carroll’s Game of Logic. Presented by Katie Steckles and Peter Rowlett.

Dec 6, 2024 • 22min
Mathematical Objects: An object with Tai-Danae Bradley
Tai-Danae Bradley, an expert in category theory and creator of the blog Mathema, joins the discussion to explore the significance of 'objects' in mathematics. They dive into category theory, using engaging examples like the Rubik's Cube to illustrate relationships between mathematical entities. The conversation highlights the composability of functions, the links between algebra and topology, and the beautiful connections between mathematics and reality, showcasing how abstract concepts find practical applications in the world.


