Our theme for this episode is "pinning it down", the importance of labelling, classification and definitions in the fields of cities research, mapping and technology, with a literary sidestep into the eighteenth century for good measure.

Our guests are Giles Rhys Jones, CMO of the innovative new mapping website what3words.com, Sophie Coulombeau, a specialist in eighteenth century literature who tells us about why botanical classification was once considered dangerously sexual, and Elsa Arcaute, a physicist here at CASA, who has been working on the surprising difficult task of how you actually define a city.

Links related to each of our guests may be found below.

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GUESTS:

Giles Rhys Jones:

https://twitter.com/gilesrhysjones (twitter)

http://what3words.com (What3Words)

Sophie Coulombeau:

https://twitter.com/SMCoulombeau (twitter)

https://sophiecoulombeau.wordpress.com (blog)

Elsa Arcaute:

https://twitter.com/ElsaArcaute (twitter)

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PRESENTERS:

Mike Fell:

https://twitter.com/mikefsway (twitter)

Kaisa Puustinen:

https://twitter.com/kaisaph (twitter)

Thomas Oléron Evans:

https://twitter.com/Mathistopheles (twitter)

http://www.mathistopheles.co.uk/ (personal website)

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Image: Yellow push pin - Slashme - Creative Commons (https://commons.wikimedia.org/wiki/File:Yellow_push_pin.jpg)