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The Liversidge Research Lecture 2014 was delivered by Professor Martin Banwell at the University of Sydney on Thursday, 20 November 2014. Professor Banwell is an organic chemist and is one of Australia's most accomplished researchers into the synthesis of complex organic compounds. In this year's Liversidge Research Lecture, he described work that has been done in his group over a number of years to synthesise materials that have wide-ranging applications, especially as pharmaceuticals.
The starting point for his work is a family organic chemicals called arenes. These are substances based on a structure of six carbon atoms arranged in a ring, with each carbon atom having a hydrogen atom attached (read more...)
The talk at the 1227th AGM was presented by Dr Steve Lee and Dr Tri Phan, joint winners of the 2014 ANSTO Eureka Prize for Innovative Use of Technology. They received the award for developing a very inexpensive polymer lens with extraordinarily high resolution that can be used on cameras like those found on mobile telephones.
In recent years, miniaturisation has revolutionised sensors: small image sensors means that the optical device can also be miniaturised and it is much easier to get good optical qualities in a small lens than a large one. The early miniaturised lenses were ground from small pieces of glass and were quite expensive to manufacture. (read more...)
Perched atop a submerged seamount, in turn atop a submarine ridge, Phillip Island and its close neighbour Norfolk Island are tiny specks, the only land in a vast expanse (2.5 million square kilometres) of the southwest Pacific Ocean. Both islands were created by volcanic activity between 2.8 and 2.2 million years ago. The plateau top of the seamount, 100 x 35 kilometres, is between 30 and 75 metres below present sea level. Sequential ice ages during the last 2 million years exposed the entire plateau, an area about 100 times the size of the present islands. Such an area could have accommodated about four times as many species as the present islands. During the last ice age the entire plateau was exposed for 24,000 years until 13,000 years ago. Sea level 25 metres higher, reached 10,000 years ago, still exposed an island about 35 km long, large enough to accommodate more than double the species count of the present islands and joining these islands with dry land. An island at least this large was exposed for 60,000 years during the last ice age, before the sea reached its present level just 6,000 years ago. (read more...)
1225th Ordinary General Meeting
"The Fourth Dimension and beyond: the paradox of working in unimaginable worlds"
Scientia Professor Ian Sloan AO FRSN
Professor Ian Sloan is not content to work in an environment of four dimensions – he is quite at home in space with many more dimensions than most of us are accustomed to. Many mathematical problems can be considered as problems and multidimensional space – the question is how do we imagine these environments? The dimensions of a space can be considered to be the number of directions that you can go from any single point within it. For example, in our four-dimensional world, from any point we can go in three spacial directions, plus time. If we are in a six-dimensional environment, we can go in six directions from any given point and mathematically we don't need more than six variables to describe this environment. But why would we be interested in multidimensional spaces?
Irene Kelly presented the Jak Kelly Award to Linh Tran at the Union University & Schools Club on Wed 3 Dec 2014.
Professor Martin Banwell delivered the Liversidge Research Lecture 2014 at Sydney University on Thursday 20 November 2014 (read more...)
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