The Culgoora radioheliograph records second-by-second pictures of the Sun’s radio-emission at a wavelength of 3.75 meters. Located in northern New South Wales, the giant circular array of 96 aerials provides Australian radio-astronomers with a unique method of studying the violent but short-lived explosions which occur on the Sun’s surface.
The discovery in the early nineteenth century that chemical elements could be identified by observing their emission spectra led to the development of accurate methods of chemical analysis based on atomic emission spectra.
Ever since Skeleton Weed was first discovered in Australia 50 years ago, farmers and scientists have been searching for a way to stop it spreading through the wheatlands of New South Wales, Victoria and South Australia.
This film, designed principally for zoology students, shows echidnas in the field and in the laboratory – their feeding behaviour and the suckling of the young.
This study is the story of rainmaking in Australia – from the first tentative experiments with dry ice to the present, large-scale operations using silver iodide as the seeding agent.
Scientists have always wanted to classify things, to divide them up into meaningful groups. We all do this every day, when we speak about human races, or give names to the plants we grow in our gardens. But to do this efficiently needs years of experience, years of working with the things we want to classify.
How does a radio telescope work? What do radio signals tell us about the Universe?
Mairaj Ali, a Colombo Plan Fellow, came to Australia in 1965 from the Karachi Marine Biological Research Station to study scientific film production. In this film he records his impressions of Melbourne and of the CSIRO Film Unit, where he spent most of his time.