Examples of 'optical telegraph' in a sentence
Meaning of "optical telegraph"
An optical telegraph was a form of long-distance communication used before the invention of the electric telegraph. It utilized a series of towers with movable arms or shutters to convey coded messages visually over long distances by line of sight
How to use "optical telegraph" in a sentence
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optical telegraph
The optical telegraph preceded the electrical telegraph.
He is known for his experiment with the optical telegraph.
The optical telegraph was then replaced by the electric telegraph.
An information board describes the history of the optical telegraph.
Optical telegraph tower.
Almost until the end of the following century optical telegraph lines were built.
Optical telegraph line.
Creation of the mechanism for the Chappe optical telegraph.
Chappe optical telegraph.
During the First Carlist War it was located in the tower the optical telegraph.
The optical telegraph.
The French engineer Claude Chapp used semaphores to create the first optical telegraph system.
Later the optical telegraph was also put into action in shipping and rail traffic.
During the 19th century the tower was used to make signals with an optical telegraph.
The optical telegraph tower in Buñol is one of the towers of the Madrid-Valencia line.
See also
The world 's first telegraphic message came to Paris from Lille via Chapp 's new optical telegraph.
Image, The optical telegraph network in France.
Of course, e-mail is much more efficient than the optical telegraph.
Image, The optical telegraph network in the Low Countries.
In 1794, he created an optical telegraph for transmitting signals over distance.
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