RNZ: Our Changing World

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Website
http://www.radionz.co.nz/national/programmes/ourchangingworld
Description
Getting out in the field and the lab to bring you stories about science, nature and the environment.
Language
🇬🇧 English
last modified
2019-06-13 19:11
last episode published
2019-06-14 08:00
publication frequency
1.79 days
Contributors
Radio New Zealand author   owner  
Explicit
false
Number of Episodes
487
Rss-Feeds
Detail page
Categories
Science & Medicine

Recommendations


Episodes

Date Thumb Title & Description Contributors
14.06.2019

Holmium - obscure, but an important surgical laser

Holmium has interesting magnetic properties and is an important part of precise surgical lasers known as the 'Swiss Army knife' of lasers, according to Prof Allan Backman from AUT, in ep 35 of Elemental.
13.06.2019

Our Changing World for 13 June 2019

Behind-the-scenes at Auckland Zoo with sick kākāpō, and the chemical element holmium.
12.06.2019

Behind-the-scenes of the kākāpō health crisis

Kākāpō death toll from aspergillosis rises by one to seven, while nine birds have been given a clean bill of health. Sad and positive news from the frontline of the fight to save kākāpō, in ep 20 of the Kākāpō Files.
10.06.2019

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 table, says Prof Allan Blackman from AUT, in ep 34 of Elemental.
7.06.2019

Hafnium - helped land the first astronauts on the moon

Hafnium is named after Copenhagen and as it has a very high melting point it was used in the thruster nozzles of the Apollo Lunar modules, according to Elemental's Allan Blackman from AUT.
6.06.2019

Tawaki bust penguin swimming records

Twice a year tawaki or Fiordland crested penguins make migrations of many thousands of kilometres to the south to feed at the Polar Front.
6.06.2019

Successful new seabird colony on Matiu Somes Island

Eight years ago volunteers began translocating fluttering shearwater chick's to Wellington's Matiu Somes Island to establish what is now a growing seabird colony.
6.06.2019

Rifleman to royal albatross - a bird atlas for NZ

The NZ bird atlas will be a 5-year project counting common & rare birds from the Kermadecs to the far south.
6.06.2019

Our Changing World for 6 June 2019

The NZ Bird Atlas is launched, a successful effort to create a new fluttering shearwater colony, Fiordland's tawaki penguins go for record-breaking long swims, and the chemical element gallium.
3.06.2019

Gold - a most desirable noble metal

Gold is highly valued for its colour as well as for being malleable and ductile, and as a noble metal it is unreactive and doesn't rust, says Allan Blackman from AUT in ep 32 of Elemental.
31.05.2019

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 night vision scopes, says Allan Blackman from AUT in ep 31 of Elemental.
30.05.2019

The streams beneath the streets

New research shows Wellington's underground streams are important homes and highways for freshwater fish.
30.05.2019

Our Changing World for 30 May 2019

Many of Wellington's streams now run in pipes under the roads, and the aspergillosis crisis in the kakapo population grows.
29.05.2019

Kākāpō health concerns continue

The number of cases of aspergillosis in the kākāpō population continues to rise, with 30 birds on the mainland for testing & treatment. The death of Huhana and Merty drops the adult population to 142, in ep 19 of the Kākāpō Files.
29.05.2019

Gallium - mysterious case of the disappearing spoon

Gallium is the second element named after France, is a key element in mobile phones & Blu-ray players & melts at body temperature, says Prof Allan Blackman in ep 30 of Elemental.
27.05.2019

Gadolinium - plays a key role in MRI scans

Gadolinium has interesting magnetic properties and is used as a contrast agent in MRI scans, according to ATU's Prof Allan Blackman in ep 29 of Elemental.
24.05.2019

Francium - final naturally-occurring element to be discovered

Francium was the last naturally-occurring element to be discovered and has never been seen, says Prof Allan Blackman from AUT in ep 28 Elemental.
23.05.2019

The Southland accent - a rolling change

The Southland accent has a distinctive burr, and new research is revealing how those 'rolled Rs' have changed over time.
23.05.2019

Our Changing World for 23 May 2019

Southlanders are rolling their Rs more - and less - than 100 years ago, and the chemical element fluorine.
20.05.2019

Fluorine - the non-stick element

Fluorine is a highly toxic green gas that is the main ingredient in non-stick teflon coatings. In ep 27 of Elemental, Prof Allan Blackman from AUT, says that fluorine has very different properties from fluoride.
17.05.2019

Europium - putting the security in the Euro

Europium is named after Europe and is responsible for a forgery-busting aspect of the Euro banknote, reports Prof Allan Blackman in ep 26 of Elemental.
16.05.2019

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 go to breed in the Pacific.
16.05.2019

Foulden Maar - a 23-million year-old fossil treasure trove

A 23-year million year old volcanic crater in inland Otago that is a treasure trove of exquisiute fossils is facing the threat of being mined for animal feed.
16.05.2019

Our Changing World for 16 May 2019

NIWA is tagging longfin eels to try and find their mysterious breeding grounds, and Foulden Maar is one of NZ's premier fossil sites.
15.05.2019

Foulden Maar - a 23-million year-old fossil treasure trove

A 23-year million year old volcanic crater in inland Otago that is a treasure trove of exquisiute fossils is facing the threat of being mined for animal feed.
15.05.2019

Our Changing World for 15 May 2019

NIWA is tagging longfin eels to try and find their mysterious breeding grounds, and Foulden Maar is one of NZ's premier fossil sites.
15.05.2019

Worrying times for kākāpō

A spate of kākāpō chicks deaths from a fungal pneumonia caused by aspergillosis has DOC's Kākāpō Recovery Team very worried. Two further adult deaths bring the population to 144 birds with 73 living chicks, all in ep 18 of the Kākāpō Files.
13.05.2019

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 of Elemental with Allan Blackman from AUT.
10.05.2019

Dysprosium - hard to get

Dysprosium earned its name by being very hard to separate from other elements and has become very important in electric car motors. Join Allan Blackman from AUT in ep 24 of Elemental.
9.05.2019

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 science project & are working to make the village a safer place for the curious birds.
9.05.2019

Our Changing World for 9 May 2019

The Kea Conservation Trust is working with South Island communities to better understand kea and find ways to keep them out of trouble.
8.05.2019

Curium & meitnerium - in honour of two pioneering women

There are only two chemical elements on the periodic table named after women: curium, in honour of Marie & Pierre Curie, & meitnerium after Lise Meitner. Allan Blackman from AUT introduces the women and their elements in ep 23 of Elemental.
6.05.2019

Copper - essential, in moderation

Copper is a soft metal that is an essential element for enzymes and life, gives octopuses their blue blood and was often used to make coins. Allan Blackman from AUT has the lowdown on copper in ep 22 of Elemental.
3.05.2019

Cobalt - goblin of the periodic table

Famous as the colour of blue glass and important in red blood cells, cobalt can form a permanent magnet and is vital for livestock. Allan Blackman from AUT talks about his favourite element in ep 21 of Elemental.
2.05.2019

Laser scanning crime scenes

ESR is using a laser to scan crime scenes, allowing police and juries to 'fly through' the scene long after the event.
2.05.2019

Our Changing World for 2 May 2019

ESR is laser scanning crime scenes, and the kakapo breeding has been busy on Anchor Island.
1.05.2019

The Kākāpō Files: Glad and sad kākāpō tidings

The death of Hoki from a fungal infection brings the number of adult kākāpō to 146, while there are 77 chicks. Ep 17 of the Kākāpō Files includes a visit to Anchor Island & all the latest news.
29.04.2019

Chromium - colourful and shiny

Chromium is a transition metal that gives colour to precious jewels, the shine to your car fender and your kitchen bench, but can also be a killer. All this and more in ep 20 of Elemental with Allan Blackman from AUT.
26.04.2019

Chlorine - good for health, bad for health

Chlorine is the culprit in the 'case of the exploding trousers'. It is also well-known as a disinfectant and chloride ions are essential for life, but as DDT & CFCs, chlorine is bad news. Allan Blackman from AUT gives us the lowdown in ep 19 of Ele...
25.04.2019

Lava Lab and drilling into a volcano's magma chamber

University of Canterbury's Lava Lab, plans to drill into a volcano's magma chamber and a Curious Mind volcano drilling game for schools.
25.04.2019

Our Changing World for 25 April 2019

University of Canterbury's Lava Lab, plans to drill into a volcano's magma chamber and a Curious Mind volcano drilling game for schools.
22.04.2019

Cerium - combustible and confusing

Cerium is the most abundant rare-earth elelment and pops up in self-cleaning ovens, cigarette lighter flints and spectacle glass. Find out more with Allan Blackman from AUT in ep 18 of Elemental.
19.04.2019

Carbon - life & times of the 'king of elements'

Carbon underpins life as we know it, fuels our world and gets its own branch of chemistry, according to AUT professor Allan Blackman, in ep 17 of Elemental.
18.04.2019

Finding DNA in fingerprints

A new method of finding DNA in fingerprints could take some of the guesswork out of crime scene analysis.
18.04.2019

Our Changing World for 18 April 2019

ESR is finding DNA from fingerprints and the latest kakapo news, brings chick tally to 75 with three still to hatch.
16.04.2019

Longest kākāpō breeding season

With 75 living chicks and the final three eggs due to hatch this week, the 2019 kākāpō breeding season is set to be the longest on record. All this & the sex ratio of the first 49 chicks, in ep 16 of the Kākāpō Files.
15.04.2019

Calcium - strength and beauty

Calcium creates objects that are strong and beautiful, from caves, to teeth and bones, and coral reefs. Find out more in ep 16 of Elemental, with Allan Blackman from AUT.
12.04.2019

Caesium - the time-keeper

A second, the basic unit of time, is defined by caesium, which is also useful for dating things. Find out more about caesium's role as a timekeeper, in ep 15 of Elemental with Allan Blackman from AUT.
11.04.2019

How enzymes respond to rising temperatures

Biology professor Vic Arcus is trying to tease out how enzymes are able to speed chemical reactions up.
11.04.2019

Our Changing World for 11 April 2019

Research into how enzymes are able to speed up reactions as much as they do, and the chemical element cadmium.