Site • RSS • Apple PodcastsDescription (podcaster-provided):
A podcast about the big numbers, the hard sums, the mathematics that defines, runs, shapes, changes, begins, ends, every things our lives and the world around us. Hosted by Colm O'Regan. An award-winning radio broadcaster, comedian, novelist and it turns out lapsed engineer who is trying to feel useful again. Each episode sheds light on a tiny corner of a giant subject with entertaining guests and accessible talk.Themes and summary (AI-generated based on podcaster-provided show and episode descriptions):
➤ Accessible maths & big-number thinking • statistics in sport, crime, census, voting • algorithms, AI, bias, data • energy, carbon, climate, weather modelling • space/ocean science, black holes, quantum • puzzles, measurement, symmetry, origami, educationThis podcast uses mathematics as a lens for exploring how the world works, pairing an accessible, conversational style with guests drawn from science, engineering, data, journalism, education, and the arts. Across episodes, the host treats “big numbers” and “hard sums” less as abstract classroom topics and more as practical tools for understanding systems that shape daily life—how we measure and model reality, and what happens when we make decisions based on numbers.
A recurring theme is mathematical modelling of complex phenomena, including climate and weather, energy systems and decarbonisation, ocean science, and large-scale uncertainty. Listeners are introduced to the kinds of assumptions, trade-offs, and key quantities that underpin forecasts and policy-relevant calculations, along with the limits of what models can tell us.
Another throughline is statistics and data literacy in public life. The show examines how numbers are produced and interpreted in areas such as elections and voting systems, census design, crime and criminology research, algorithmic decision-making, and the incentives and biases that can emerge when institutions rely on metrics. Related discussions consider how algorithms influence society, how to audit them, and what “fairness” or error means when automated systems make consequential choices.
The podcast also ventures into foundational and frontier topics in mathematics and physics—prime numbers and unsolved problems, matrices and networks, chaos and the three-body problem, quantum computing, and black holes—often emphasizing the ideas and intuition rather than formal derivations. Alongside these are episodes focused on everyday mathematical thinking: estimation and mental arithmetic, puzzles, queues, measurement standards, and even the hidden maths behind familiar objects, art, and storytelling.
Throughout, humor and curiosity are used to lower the barrier to entry while keeping attention on what mathematics reveals about technology, nature, and human behaviour.
| Episodes: |
|
53 The High Seas with Olive Heffernan 2025-Jul-15 40 minutes |
|
52 This Number Could Save Your Life One Day with Lewis Dartnell 2025-Jul-07 49 minutes |
|
51 Great xPectations with Paul McDonald. 2024-Aug-03 49 minutes |
|
50 Talking Ballots with Adrian Kavanagh 2024-Jul-14 55 minutes |
|
49 The Hole Shebang - Black Holes with Dr John Regan 2024-Jun-26 51 minutes |
|
48 Object Lesson 2024-May-28 47 minutes |
|
47 Body to Body to Body with Dr Matt Kenzie 2024-May-16 59 minutes |
|
46 Census Sensibility with Dr Jessica Coyne. 2024-Apr-17 59 minutes |
|
45 Empire of the Sum a history of the pocket calculator 2024-Mar-15 47 minutes |
|
44 (Replay) Algorithm and Blues with Cathy O'Neill 2024-Mar-07 46 minutes |
|
43 Potential Energy - the Mathematics of Energy Modelling 2024-Feb-29 37 minutes |
|
42 That's So Derivative - Mathematics at the Movies with John Fardy 2024-Feb-22 58 minutes |
|
41 Re: Volts with David Roberts 2024-Feb-06 71 minutes |
|
40 H2 Oh! with Catherine Sheridan 2024-Jan-29 45 minutes |
|
39 There's Been a Breakthrough with TJ Hegarty. 2024-Jan-22 43 minutes |
|
38 The Auld Sthretch with Éibhear Ó hAnluain 2023-Dec-13 39 minutes |
|
37 This Goes All The Way to the Top with David Robert Grimes 2023-Nov-29 60 minutes |
|
36 Murderous Math with Kjartan Poskitt 2023-Nov-22 43 minutes |
|
35 Riemann Reason with Dr Alex Kontorovich 2023-Nov-09 59 minutes |
|
34 Sea Change with Joanna Donnelly 2023-Oct-27 33 minutes |
|
33 Climate Worrier 2023-Oct-19 53 minutes |
|
32 All the Pieces Matter 2023-Oct-16 25 minutes |
|
31 It's in Our Nature 2023-Oct-04 52 minutes |
|
30 Anyone's Guess 2023-Sep-21 59 minutes |
|
29 The More Things Change, the More They Stay the Same 2023-Sep-11 49 minutes |
|
28 Things Fall Apart 2023-Jul-10 42 minutes |
|
27 A Sense of Ounce 2023-Jul-03 51 minutes |
|
26 Chums' Pedigree 2023-Jun-28 40 minutes |
|
#25 Crime Numbers 2023-Jun-19 51 minutes |
|
24 Carbon of Contention 2023-Jun-09 51 minutes |
|
23 What the Butler Saw with John Butler 2023-May-24 58 minutes |
|
#22 Once Upon A Prime with Sarah Hart 2023-May-15 42 minutes |
|
#21 Drawing by Numbers with Ayliean MacDonald 2023-May-06 49 minutes |
|
Boyle Points - the story of a gas man 2023-May-01 38 minutes |
|
The Weather Forecast: The Original Cloud Computing 2023-Apr-22 49 minutes |
|
Some Idle ChatGPT 2023-Apr-14 52 minutes |
|
Mental Arithmetic: It's All In Your Head 2023-Apr-06 37 minutes |
|
All We Hear Is: Radio Pulsar 2023-Mar-30 36 minutes |
|
Back Once Again For The Renegade Masters Student 2023-Mar-23 59 minutes |
|
Where Is There a Will? 2021-Sep-22 58 minutes |
|
Miracle Grow 2021-Sep-08 79 minutes |
|
The Ps of Queues 2021-Aug-23 56 minutes |
|
A Chip Off The New Block 2021-Jun-28 42 minutes |
|
Welcome to the Fold 2021-May-14 67 minutes |
|
The Matrix Revised 2021-Mar-15 45 minutes |
|
Algorithm and Blues 2021-Feb-09 45 minutes |
|
The Solace of Quantum 2021-Jan-18 45 minutes |
|
A Sum of Funny. 2020-Dec-29 45 minutes |
|
The Math(s) Doesn't Care About Your Feelings 2020-Nov-21 56 minutes |
|
Galaxy Brain 2020-Nov-06 41 minutes |
|
Model Behaviour 2020-Oct-23 35 minutes |
|
Spilling the T. 2020-Oct-09 51 minutes |
|
1 They Grow Up So Fast with Kit Yates 2020-Sep-10 33 minutes |