Skip to content.
21 May - 11:57 pm NZ
with Alison Ballance & Ruth Beran
Thursdays 9 - 10pm
Palmerston North-based company OBO is making protective sporting gear for people like hockey goalies, and is then selling those products to 61 countries around the world.
Ruth Beran meets with Rueben Parr, Kamilan Naicker and OBO founder Simon Barnett who take her on a tour of the one thousand-square metre facility.
Below is the actual video made when the face mask was hit by the ball fired from the air cannon during this story.
Tony Devos at the control console, monitoring up to 160 different streams of information coming in from a standard Caterpillar engine fitted with dynamometers and sensors (images: J. Gregory)
At a small workshop in Lower Hutt, experiments with diesel fuels are producing exciting results. And the secret is just adding water. The result is emulsified diesel, a blend of water, diesel and some chemical additives, which together produce a cleaner burning and more stable fuel. It could also potentially have cost-saving benefits at the pump, and a better result for the environment and our lungs.
Project director Ian Coard and Research and Development Director Tony Devos of Veranis Corporation, are based at the Wellington Institute of Technology's Lower Hutt campus, and they explain it all to Justin Gregory.
Blended emulsified diesel, Bosch smoke test filters showing emissions from standard diesel fuel (top) and emulsified fuel (bottom), and fuel-blender Leigh Ramsay (standing) and Tony Devos taking readings during a trial (images: J. Gregory)
Until recently, it was believed that the tongue could only detect five tastes: sweet, sour, salt, bitter, and savoury or unami (which are foods that are rich in protein).
While fat is known to be a texture which can be identified in the mouth, a new study has found that people can also taste fat, and a person's sensitivity to it can impact on how much fatty food they eat, and also their likelihood of being overweight.
Two eggs in an oystercatcher nest, and DoC ranger Pat Liddy next to the nest (images: A Ballance)
If you go to almost any beach in New Zealand, chances are you'll see an oystercatcher or two wandering around. Same goes in the Chathams, except out there they have their own special oystercatcher that needs a helping hand from time to time. Department of Conservation ranger Pat Liddy takes Alison Ballance to Wharekauri Beach to see a conservation success story in action.
Pair of oystercatchers on Wharekauri Beach, sign alerting people to oystercatcher nesting area, and dead pilot whale (images: A. Ballance)
Find out how a gastric bypass operation could cure diabetes, erosion processes on a rocky shore, and catching Chatham Island tui for translocation.
Not all audio is available due to copyright restrictions.
Palmerston North-based company OBO is using an air cannon to test sports gear like face masks (12′57″)
Veranis Corporation researchers are adding water to diesel to create a cleaner fuel for New Zealand vehicles (12′42″)
Matt Golding explains that a new study has found that fat is a taste, not just a texture (12′58″)
Chatham Island oystercatchers have responded well to management that includes moving nests up the beach away from waves (12′16″)
Produced and presented by Veronika Meduna, Ruth Beran & Alison Ballance
Each week Our Changing World features an eclectic mix of sound-rich stories about science, the environment and medical research, recorded around New Zealand in labs and in the field.
Phone: (04) 4741910
To join the email preview of our programme, send a blank email with an empty subject line to email@example.com and respond to our confirmation email.
To unsubscribe, send a blank email to firstname.lastname@example.org.
Follow RNZ_Science on Twitter
The link(s) below can be pasted into your podcasting software.
For more podcasts and the conditions of use, please see our podcast page.
Audio is categorised based on the frequency of the programme it was heard in. Click on the headings below to access the programmes. For the most recently published audio, go to the latest audio page.
Streams are in Windows Media format. Mac and Linux users may need to install additional software. Get help with audio
A selection of music interviews, reviews, videos, concerts, sessions, and performances.
Downloads and podcasts are available for selected programmes. Our podcast page has a complete list of feeds.
Help on using online audio: formats, software, podcasts, downloading, and troubleshooting.