Rnz: Our Changing World

Mathematical equations can help us get new perspectives, but sometimes can be difficult to understand. This week, one story about how maths has helped the understanding of a enigmatic quirk of heart rate control and another on how crafts can be used to better understand maths.

Researchers at the Auckland Bioengineering Institute are working on what they hope will be the first New Zealand designed Class 3 medical device - a pressure sensor for the brain, to help people with hydrocephalus. The team explain the sensor design, how it works and how they test it.

Two stories of Aotearoa New Zealand conservation communities who are caring for the flora and fauna in their backyards. Claire learns about the Catlins Bats on the Map project while Katy learns about saving scurvy grass.

Claire Concannon meets a group of researchers who are determined to do the best science they can, to try to help the people they love.

Two stories about science pathways - Katy Gosset heads to the University of Canterbury STEM careers fair to find out what the future might be for science students, while Claire Concannon learns about the weird world of parasite life cycles.

In her final trawl through the audio archives, Alison Ballance heads to Putauhinu Island, a southern sanctuary for rare birds.

Alison Ballance revisits a favourite story from the archives: southern island sanctuary for rare birds.

Alison Ballance revisits a 2013 feature on kauri dieback disease and talks to Nick Waipara to find out how the northern kauri forests are coping with the disease in 2021.

Alison Ballance revisits a 2013 story about kauri dieback disease and gets an update of the disease's impact in 2021.

Alison Ballance's foray into the vaults finds a feature on ocean acidification, The Acid Test and adds a 2021 update.

2020 Prime Minister's Science Prize winners talk about their research and teaching.

There are some familiar names as well as some new faces among the winners of the 2020 Prime Minister's Science Prizes.

Alison Ballance digs into the Our Changing World archives for an Antarctic blast from the past with Voice of the Iceberg 2: Revelation.

Alison Ballance digs into Our Changing World's Antarctic treasure chest and finds part 2 of Voice of the Iceberg.

Alsion Ballance revisits a story looking at the complexity of the 2016 Kaikōura earthquake.

In this week's retrospective, Alison Ballance looks at the 'big ones': a big earthquake in Kaikōura in 2016 and a big science effort to understand it.

With more than a thousand conservation stories under her waterproof parka, science journalist Alison Ballance is retiring from RNZ's Our Changing World programme.

Alison Ballance looks back at the 1,000+ stories she has made, and revisits stone-eating spotted shags and urban eagle rays

Alison Ballance plays favourites from the archives - stone-eating spotted shags and urban eagle rays.

Seabird species are being reintroduced to Mana Island to help restore the ecology of the island.