Our Changing World

Park Road Post Production explains the process of restoring and redigitising a 1940 film Audio

Last winter a large study in Auckland looked at the impact of motorway traffic and wood smoke on inside and outside air quality Audio

The NZ Film Archive's 'Saving Frames' is a four-year project to preserve thousands of old films. Audio

The science - and fun - of meccano is on display at Te Papa. Audio

Philosopher Alan Musgrave on realism and surrealism about science, or whether or not Adam and Eve had bellybuttons Audio

To mark half a century of lasers, find out how a laser works, get a potted history of its development, and discover some uses Audio

Palaeo ecologist Kathy Campbell shows Veronika Meduna how she searches for traces of ancient life in rocks Audio

Keith Gordon demonstrates how Raman spectroscopy can be used to anaylse subtances and measure electronic properties of materials Audio

Amelia Nurse takes a tour of The Nest - Te Kohanga - Wellington Zoo's animal hospital and centre for native wildlife Audio

X-ray mammography, MRI and ultrasound can all find breast tumours - but actually locating them for biopsy or treatment can be a problem. Find out how analysing aircraft wings could help clinicians… Read more Audio

Margaret Brimble and her research team are trying to make new medicines by synthesising chemicals from nature Audio

KiwiStar Optics are making the largest optical lenses ever built in this country for an Australian astronomical project Audio