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Our Changing World

Stories about science and nature from out in the field and inside the labs across Aotearoa New Zealand.Winner 2022 New Zealand Radio Awards Best Factual Podcast - Episodic

Ranked #1

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Zirconium - shape-shifting time capsule

Zirconium - shape-shifting time capsule

Zirconium is a shape-shifting tough cookie, that is a tale of gemstones, medical implants and nuclear reactors, says All... Read more

22 Dec 2019

12mins

Ranked #2

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Mystery of the longfin eel's breeding ground

Mystery of the longfin eel's breeding ground

NIWA freshwater ecologists hope sophisticated satellite tags will solve the msytery of where New Zealand's longfin eels ... Read more

16 May 2019

18mins

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Ranked #3

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Thorium - potential source of cleaner nuclear energy

Thorium - potential source of cleaner nuclear energy

Named after Thor, the Norse God of Thunder, thorium could provide a cleaner source of nuclear power in the future, says ... Read more

21 Nov 2019

9mins

Ranked #4

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Kea get a helping hand

Kea get a helping hand

The Kea Conservation Trust & the Arthur's Pass Wildlife Trust have combined forces to band kea as part of a citizen ... Read more

9 May 2019

28mins

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Ranked #5

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The streams beneath the streets

The streams beneath the streets

New research shows Wellington's underground streams are important homes and highways for freshwater fish.

30 May 2019

15mins

Ranked #6

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The science of wildfires

The science of wildfires

Bush fires are growing in severity and frequency. William Ray finds out about the latest research into how fires burn an... Read more

30 Jan 2020

28mins

Ranked #7

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Helium - rare on earth but universally abundant

Helium - rare on earth but universally abundant

Helium is the second most abundant element in the universe and possibly the most unreactive element on the periodic tabl... Read more

9 Jun 2019

13mins

Ranked #8

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Germanium - important in the first transistors

Germanium - important in the first transistors

Germanium is a metalloid that was a key element in early transistors and is now used in optical fibres and infrared nigh... Read more

30 May 2019

7mins

Ranked #9

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Restoring Fiordland's 'island lifeboats'

Restoring Fiordland's 'island lifeboats'

The Department of Conservation and volunteer groups, including the Coal Island Trust, are hard at work removing pests su... Read more

25 Jul 2019

41mins

Ranked #10

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Making Wellington a predator-free city

Making Wellington a predator-free city

By the end of this year Predator-Free Wellington hopes that the eastern suburbs on the Miramar Peninsula will be free fr... Read more

14 Nov 2019

27mins

Ranked #11

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Probing the hidden continent of Zealandia

Probing the hidden continent of Zealandia

Ocean floor rock cores drilled into the sunken continent of Zealandia are revolutionising our understanding of Earth's h... Read more

7 May 2020

19mins

Ranked #12

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Tracking inner city rats

Tracking inner city rats

Victoria University researchers are radio-tracking urban rats in Wellington city suburbs to find out how large their hom... Read more

7 Nov 2019

20mins

Ranked #13

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Challenging gender norms & the threat of female sexuality

Challenging gender norms & the threat of female sexuality

Professor Ciara Cremin explores the politics of cross-dressing and gender identity in both her personal and her professi... Read more

1 Aug 2019

14mins

Ranked #14

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Nickel - more than just a 5 cent coin

Nickel - more than just a 5 cent coin

The chemical element nickel is named after a German word for Satan or the Devil, but nickel is now more usually thought ... Read more

8 Aug 2019

9mins

Ranked #15

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Rock wren - a little bird in NZ's big mountains

Rock wren - a little bird in NZ's big mountains

The tiny rock wren lives year-round in the alpine zone of the South Island mountains and research shows that predator co... Read more

23 Jan 2020

28mins

Ranked #16

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Our Changing World for 5 December 2019

Our Changing World for 5 December 2019

Miranda shorebird enthusiasts are on the trail of the elusive Pacific golden plover or kuriri.

5 Dec 2019

25mins

Ranked #17

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Our Changing World for 13 February 2020

Our Changing World for 13 February 2020

Peter Griffin and two Wellington entrepreneurs are in search of local yeasts to impart distinctive NZ flavours to craft ... Read more

13 Feb 2020

29mins

Ranked #18

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The science of toxic algal blooms

The science of toxic algal blooms

Toxic algae expert Jonathan Puddick has a Marsden Grant to find out if toxic cyanobacteria share their toxins with non-t... Read more

5 Sep 2019

28mins

Ranked #19

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Erbium - through rose-tinted glasses

Erbium - through rose-tinted glasses

Erbium is named after a chemically famous Swedish village, and adds a rose-tinted glow to the periodic table, in ep 25 o... Read more

12 May 2019

8mins

Ranked #20

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Palladium - cleaning up your car's exhaust

Palladium - cleaning up your car's exhaust

Palladium is a pricey precious metal most commonly used in catalytic convertors on car exhausts, says AUT's Allan Blackm... Read more

25 Aug 2019

12mins

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