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Telegraph code
Videos
A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code. Telegraphy usually refers to the electrical telegraph, but telegr
One page from the Chinese telegraph code book
One page from the Chinese telegraph code book
The ITA 2 code, in its punched tape form
The ITA 2 code, in its punched tape form
Telegraphy
Videos
Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semap
Telegraph code
…A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code. Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were…
Replica of a Chappe telegraph on the Litermont near Nalbach, Germany
Replica of a Chappe telegraph on the Litermont near Nalbach, Germany
A section of the Great Wall of China built during the Ming dynasty (1368–1644)
A section of the Great Wall of China built during the Ming dynasty (1368–1644)
19th-century demonstration of the semaphore
19th-century demonstration of the semaphore
A site in Hammersmith London (UK) where Sir Francis Ronalds constructed the first electric telegraph in 1816
A site in Hammersmith London (UK) where Sir Francis Ronalds constructed the first electric telegraph in 1816