heliograph
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Many of the instruments used in early operations of the United States Army Signal Corps were adaptations of equipment used by the Plains Indians, particularly that of the heliograph.
From SAT Tests
In the flash of heliograph signals in the North Sea haze and the speaking of great naval guns, the world has lately read a certain statement about the British Empire.
From Time Magazine Archive
“He said you understood—Britt did,” clamored MacLeod, hastening around in front of the heliograph.
From King Spruce, A Novel by Day, Holman
When circumstances permit, the heliograph is sometimes used.
From The Boys of '98 by Otis, James
He found the heliograph signal mirror at his side, sighted it upon the ship, and worked the mirror rapidly.
From Salvage in Space by Williamson, Jack
