Math/Maths 110: Subtraction is a both brain activity

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A conversation about mathematics between the UK and USA from This week Samuel and Peter spoke about: A clue to solving Kryptos; The Game of Life: The Play; The Bletchley Circle; Mathalicious: the Video Series; Geogebra for the iPad Kickstarter; Math Requires Crosstalk in the Brain; Information and Inference: a Journal of the IMA; Maths and Sport and Plus on the Paralympics; and more.

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A clue to CIA mystery that has defeated the world's codebreakers
The Game of Life: The Play
More drama at Bletchley Park!
The Bletchley Circle
The Bletchley Circle trailer
Mathalicious: the Video Series
Geogebra for the iPad Kickstarter
Math Requires Crosstalk in the Brain
Oxford Journals: Information and Inference: a Journal of the IMA
Maths and Sport: Paralympics
The Plus Paralympic calendar
Introduction to Mathematical Thinking with Keith Devlin trailer
Introduction to Mathematical Thinking
Wow! So far, 33,600+ students have registered for my fall online course
Ri grants for UK schools mathematics enrichment activity
Ada Lovelace Day Live!
SSS Fight 8: Adams Vs. Le Verrier

Get in touch to tell us where you're listening from and what's happening in your world, or with any questions, comments or puzzles, at

Find Samuel Hansen at and and on Twitter as @Samuel_Hansen and @acmescience.

Find Peter Rowlett at and The Aperiodical or on Twitter as @peterrowlett.

Archive of previous episodes available for free download.



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