Chronometers – timekeeping, longitude & latitude

John Harrison's Marine Chronometers , http://vimeo.com/67741035The invention of a marine clock (chronometer) which could be used to accurately measure longitude was arguably the most significant development in maritime navigation in the seventeenth and eighteenth centuries. Before their invention ships had great difficulty finding their way from one port to another. Fog, bad weather, and inaccurate charts … Continue reading Chronometers – timekeeping, longitude & latitude

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AngeloTornaghi – Scientific Instrument Maker, Sydney – 1831-1906

Angelo Tornaghi, Australian Men of Mark, 1889 Angelo Tornaghi was born Milan in 1831 and arrived in Sydney in 1855 where he worked as a local agent for the London based scientific instrument firm, Negretti & Zambra. In 1858 he helped supervise the adjustment of Negretti & Zambra instruments which had been ordered for the … Continue reading AngeloTornaghi – Scientific Instrument Maker, Sydney – 1831-1906

Einstein’s General Theory of Relativity and how it was finally proved on the 1922 solar eclipse expedition

Albert Einstein 1921 by F Schmutzer Public Domain, Ferdinand Schmutzer ,  http://web.archive.org/web/20071026151415/http://www.anzenbergergallery.com/en/article/134.html In late August 1922 a group of astronomers, naval men, and Aboriginal stockmen began the arduous task of unloading their complicated scientific equipment and stores from boats onto a deserted beach on the coast of Western Australia. The shallow nature of the approach meant the boats … Continue reading Einstein’s General Theory of Relativity and how it was finally proved on the 1922 solar eclipse expedition

Wireless and Handheld Devices at the Museum of Old and New Art (MONA}

Museum of Old and New Art & River Derwent, Hobart, Geoff Barker, 2011 The alarm was set for 5:00 am but the rain outside, and five hours sleep, did little to renew the enthusiasm so confidently expressed when Nick’s initially suggested we fly to Tasmania for the day to visit the Museum of Old and New … Continue reading Wireless and Handheld Devices at the Museum of Old and New Art (MONA}