Lens and Lamp Systems
Lighthouse Profiles

Lens and Lamp Systems

In 1828, French optician Augustin Fresnel developed apparatus for using the refractive properties of glass in a central lens with concentric prismatic glass rings arranged on vertical panels – the dioptric system. This meant light passing through the central lens could be directed in a beam, but light outside the scope of the central lens … Continue reading

Maps

Lighting the Australian Coast

The first Australian lighthouse – the Macquarie Light – threw a beam out from South Head in Sydney in 1818. Prior to that, the only white-settler beacon on the mainland was a fire lit in an iron basket in the same location from 1794. It’s hard to imagine the Australian coastline without lighthouses. It’s hard … Continue reading

Settlers Under Sail
Book Reviews

Settlers Under Sail

Settlers Under Sail
by Don Charlwood
Published by Burgewood Books, 1978
Many Australians will have read Don Charlwood’s All the Green Year while at high school, but may not know that Charlwood also wrote about Australia’s early maritime history in Wrecks and Reputations and Settlers Under Sail – an account of the 1878 wreck of the Loch Ard, west of Cape Otway in Victoria. Charlwood’s connection with sailing ships dates back to the 1860’s when his uncle, Edward Charlwood, kept a shipboard diary of his journey to Australia with his new bride. Continue reading