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PUBLIC TALK: Finding our Place in the Universe

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Today's date is Monday, September 24, 2018
Finding our Place in the Universe : The 2018 George Seddon Memorial Lecture by Professor David Blair Other events...
The 2018 George Seddon Memorial Lecture by David Blair, Emeritus Professor, ARC Centre of Excellence for Gravitational Wave Discovery.

Over less than two human lifetimes, discoveries in physics transformed the world and our sense of place in the universe. We harnessed electromagnetic waves, thereby shrinking our planet to a village; an infinitesimal speck in a vast and inflating universe. After a long struggle, we learnt how to detect waves of space, gravitational waves, which allow us to hear the universe, thereby changing our sense of the universe once again. Each wave of discovery re-emphasises our transient and improbable existence in an equally transient universe. Our treasure, which is our life and our planet, grows in value as each successive discovery uncovers more and more threads on which our existence depends.

Gravitational science has linked Western Australia to the world and to the whole universe. Einstein’s revolutionary theory of gravity was created while Western Australians were fighting in the first world war. In 1920 while Western Australia was still mourning those killed and wounded, Professor Alexander Ross, Foundation Professor of Physics at UWA campaigned for an international expedition to test Einstein’s extraordinary new theory during an eclipse of the Sun, best seen at Wallal Downs in the Kimberley. Two years later under instructions from Prime Minister Billy Hughes, a Trans Australian steam train carried a team of US astronomers and huge telescopes through Kalgoorlie and Guildford, en route to Wallal Downs. They provided the first indisputable proof of Einstein’s prediction that space is warped by matter.

On 15th September 2015, a vast explosion of gravitational waves was detected by an International team that included more than 20 West Australians. They shared in the world’s richest science prize. The gold that enriched Western Australia was itself a mystery: where is gold created? In 2017 the same team heard a long drawn out siren sound of rippling space - the signature of colliding neutron stars. In their final crash, they slung out blobs of neutrons that exploded like a vast atomic bomb. The Zadko telescope at UWA’s Gingin Centre and many other telescopes observed this explosion and the tell-tale signature of gold.

The annual George Seddon Lecture is sponsored by the UWA Institute of Advanced Studies and UWA’s Friends of the Grounds.
Location Ross Lecture Theatre, UWA Physics Building
Contact Institute of Advanced Studies <ias@uwa.edu.au> : 6488 1340
URL http://www.ias.uwa.edu.au/lectures/davidblair
Start Thu, 02 Aug 2018 18:00
End Thu, 02 Aug 2018 19:00
Submitted by Audrey Barton <abarton@admin.uwa.edu.au>
Last Updated Thu, 28 Jun 2018 08:37
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