Professor Atholl Anderson FRSNZ gives the 2014 New Zealand Aronui Lecture for the Royal Society of New Zealand on the first great phase of oceanic colonisation. A fundamental change in the relationships between people and the sea was marked by a rapid and extensive occupation of remote islands across the world during the late Holocene (1500BC to AD1500). This movement almost doubled the reach of humanity across the surface of the planet. Its impetus remains obscure but a study of the different ways in which oceanic dispersal was manifested in the Indian and Pacific Oceans is beginning to reveal the reasons and mechanisms behind the process.
In this Ten by Ten talk for the Royal Society of New Zealand, Dr Martin Reyners explains how the tectonic plates in New Zealand lock together. By using earthquake waves themselves to map our underlying plates – the earthquake equivalent of a medical scan – Marsden-funded researchers have developed a three-dimensional model of the rock structure under New Zealand. The project explains why our tectonic plates are locked in some areas but not others. The main factor controlling locking turns out to be the tectonic history of both plates, which in turn controls the amount of fluid available to localise slip on large faults. Dr Martin Reyners looks at how this model has provided an explanation for some of the puzzling features of the Canterbury earthquakes: why there was a long delay between large earthquakes, why they involved so much shaking, and why they migrated to the east.
Professor Ngahuia Te Awekotuku, University of Waikato, gives a Ten by Ten talk on sustaining the art of moko as part of a series celebrating 20 years of the Marsden Fund. (NOTE: This video is audio with a few images)
James Sneyd FRSNZ, Professor of Applied Mathematics at the University of Auckland and jazz violinist, gave an At Six talk at the Royal Society of New Zealand on the interplay between maths and music. He outlined some of the failed attempts over 2000 years of Western culture to understand or compose music through mathematics and then explained that the construction of patterns is a far more fundamental connection between the worlds of mathematics and music.