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.
This remarkable film record of marsupial birth shows mating, the female’s preparation for the birth of her young and, finally, the birth itself.
Think you’re an early adopter? CSIRAC was an automatic digital computer, the fifth computer of its kind ever built. It weighed 7,000 kg and had a RAM of 768 words.
If the field biologist is to advise on the conservation of rare birds and the control of pests, he must be able to study birds in their natural environment and to record their pattern of behaviour over a number of years. But first, he must be able to identify individuals in a species.
A compilation film on Sir Ian Clunies Ross produced for the Ian Clunies Ross Memorial Foundation.