This notice advertises a coming meeting of one of our fellow organisations

HISTORY OF SCIENCE. IDEAS & TECHNOLOGY GROUP
MEETING 8 May 2010
NAVIGATION AND MINING TECHNOLOGY


WHEN:                 2 pm Saturday 8 May 2010
WHERE:             Ira Raymond Exhibition Room
Just inside-the main doors of the Barr Smith Library, University of Adelaide, North Terrace, Adelaide.

 

 

 

  
 

SPEAKER 1: Lesley Abell

TELEGRAPH TODD AND THE TIME BALL

Lesley Abell will tell the little known story of the landmark Semaphore Time Ball, explaining the significance of the Time Ball for nineteenth century shipping and navigation and the role of Sir Charles Todd (1826-1910), Observer and Superintendent of Telegraphs, in its design. She will draw some comparisons with time balls in other parts of Australia and overseas.

  

SPEAKER 2: Ian Schomburgk

SPAIN'S RIO TINTO MINES: ANCIENT AND MODERN

These mines date from about 1000 BCE; the Romans left behind between 5 and 20 million tons of slag from their subsequent copper workings. Then after a long period of inactivity a British/German consortium in 1873 brought major re-development. The mines' history and technological changes will be illustrated by Ian's photographs from the museum and a railway trip through the old workings.


VISITORS WELCOME

Afternoon tea: $ 2 donation

    Dr. Pauline Payne                                                                                                                                                  Bob Major
President Ph.8303 4464                                                                                                                                      Secretary
   pauline.payne@adelaide.edu.au                                                                                                                      Ph.8352 8949

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