Virtual Discovery #26 - Heliograph
Part of a series of “Virtual Discovery” presentations featuring the military heritage of Rottnest island produced in parallel with Virtual Visit posts relating to the Australian Army Museum of Western Australia. This “Virtual Discovery” focuses on the heliograph.
In spite of its relatively simple concept, the heliograph in its modern form dates only to 1869. Sir Henry Christopher Mance, (6 September 1840 -- 21 April 1926) was a British electrical engineer .He received a knighthood for developing the heliograph. Sir Henryjoined the Persian Gulf Telegraph Department in 1863, and was employed on the laying of the first Persian Gulf submarine communications cable. An inventive man, he was responsible for a number of important developments in the field of cable laying, testing and usage.In 1869 he invented the heliograph, a wireless solar telegraph that signals by flashes of sunlight using Morse code reflected by a mirror. The flashes were produced by momentarily pivoting the mirror. Frustrated by Government lack of interest, he sent a number of his instruments to Lord Roberts for use during the Second Afghan War, where the practical value of the invention was realised. It was subsequently adopted by military service worldwide and was still being used in World War 2
Details
Details
The Rottnest Island was closed to the public for extended periods during the COVID-19 pandemic beginning in March 2020. The success of “Virtual Visi” series at the Australian Army Museum of Western Australia prompted the creation of a parallel series of “Virtual Discoveries” focussing on the military and heritage aspects of Rottnest island.
Australian Army Museum of Western Australia
Australian Army Museum of Western Australia
Other items from Australian Army Museum of Western Australia
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
-
World War 1, South-West Asia, Turkey, Gallipoli, SILAS, "Crusading at Anzac"
Scan this QR code to open this page on your phone ->
