Usage of "heliograph"

ruso

гелиограф

español

heliografo

catalán

heliògraf

Communication device reflecting sunlight.

heliography

Términos relacionados

optical instrument

heliografo

Uso de heliograph en inglés

The action must wait, while the heliograph flashed its call for help. 
 On the Firing Line 

Good news came through the heliograph about General Gatacre's force at Dordrecht. 
 Ladysmith: The Diary of a Siege 

Well, I guess that's because the heliograph is so much more secret. 
 The Boy Scout Aviators 

At last a cipher message began to come through on the heliograph. 
 Ladysmith: The Diary of a Siege 

The disadvantage of the heliograph is the undependability of the sun. 
 Artificial Light: Its Influence upon Civilization 

Mrs. Fischer-Suympkins was the heliograph of the smart society parading corps. 
 Sixes and Sevens 

Signalling by heliograph was throughout the operations of the greatest value. 
 The Story of the Malakand Field Force: An Episode of Frontier Wa... 

As he sat there, his eye caught the flash of the heliograph signal. 
 The Romance of Elaine / Sequel to "Exploits of Elaine" 

Nearly all day the heliograph was flashing to us from that far-off hill. 
 Ladysmith: The Diary of a Siege 

The marines get aviation, searchlight, wireless telegraph, heliograph, and other drill. 
 Winning a Cause: World War Stories 

The British army has made wide use of the heliograph in India and Africa. 
 Masters of Space / Morse and the Telegraph; Thompson and the Cab... 

To his surprise, however, he caught a flash of the heliograph from the land. 
 The Romance of Elaine / Sequel to "Exploits of Elaine" 

Not so dazzlingly bright as before, but still flickering like a distant heliograph message. 
 The Pariah 

These lookouts now have telephones, but until last summer they used the heliograph instead. 
 Tenting To-night / A Chronicle of Sport and Adventure in Glacier... 

The Spaniards tried to get help from the main army by signalling with the heliograph. 
 The Great Round World and What Is Going On In It, Vol. 1, No. 18... 

In this torrid country, where the sun is always shining, the heliograph is always useful. 
 The Story of the Malakand Field Force: An Episode of Frontier Wa... 