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Geoffrey Duffield

August 1, 2008 /
From Wallal, in Australia’s far north-west, to Goondiwindi, near the New South Wales-Queensland border, local and international scientists watched the sun and waited.

A total solar eclipse was due on 21 September 1922. An eclipse always held scientific interest, but this one offered the chance to confirm one of the most revolutionary theories in science. Albert Einstein’s general theory of relativity predicted that light passing near an object such as the sun would be bent by gravity. In 1919, Arthur Eddington’s observations of a total solar eclipse lent support to Einstein’s theory, but some challenged his results. The 1922 eclipse, best observed in Australia, promised to decide the matter. Read MoreLooking at the sun

June 1, 2004 /

Few institutional histories could boast such a dramatic conclusion as Stromlo: an Australian observatory. The manuscript was substantially complete when a savage firestorm swept through the pine plantations flanking Mount Stromlo, destroying all the major telescopes and many of the observatory’s buildings. Among the losses was the Oddie Dome, built in 1911 to test the site – one of the first buildings in the nation’s yet to be inaugurated capital. This sudden twist of fate forced the authors to add an epilogue, providing both a poignant account of the fires, and an expression of hope for the institution’s future. Inspecting the scene shortly after the devastation, Prime Minister John Howard promised government assistance in rebuilding the site. Like many others, he lamented the loss of what he described as a ‘national icon’. Read MoreStromlo: an Australian observatory

July 31, 2003 /

The development and use of the atomic bomb was a turning point in history. It seems so obvious—the world was changed, a new age dawned. But this was not the first turning point, nor the last. History is littered with critical moments, crossroads, watersheds and points of decision. Each brings a new sense of urgency, each draws renewed attention to the fate of humankind, but the moment soon passes and the urgency fades…until next time. Read MoreAtomic wonderland