7:12 Crochet Coral Reef

The Crochet Coral Reef is a woolly celebration of the intersection of higher geometry and feminine handicraft, and a testimony to the disappearing wonders of the marine world. It has been exhibited in art and science museums around the world. We talk to its creator, science communicator Margaret Wertheim who, along with her twin sister, artist Christine Wertheim, founded the The Institute For Figuring.

7:30 The Sampler

Nick Bollinger discusses the influences and traditions celebrated in Troy Kingi's debut double-album Guitar Party At Uncle's Bach, and a collection of solos and demos from the late Sandy Denny, while Elliott Childs gets to grips with globe-spanning otherworldliness of Australian one-man-band D.D. Dumbo.

8:12 Nights' Pundit - Military History

Historian Dr. Damien Fenton on the Battle of Verdun and the role of France in the First World War.

8:30 Window on the World

Dutch prisons are emptying, and being closed down. Out of 50 penal institutions, 19 have shut already, with a further eight slated for closure. Some are being hired out to foreign governments or used to house refugees. Lucy Ash travels to the Netherlands to find out why the country appears to have a shortage of criminals.

9:07 Tuesday Feature: Mistaken Identities 4. Culture

10:17 Late Edition

A roundup of today's RNZ News and feature interviews as well as Date Line Pacific from RNZ International.

11:07 Worlds of  Music

Trevor Reekie hosts a weekly music programme celebrating an eclectic mix of 'world' music, fusion and folk roots. Tonight includes music from from Denmark, Mali, Claude Debussy is given a bluegrass make over, a quick chat to Ethiopian Soul Queen - Ester Rada and more.