A semaphore telegraph, optical telegraph, shutter telegraph chain, Chappe telegraph, or Napoleonic semaphore is a system of conveying information by means of visual signals, using towers with pivoting shutters, also known as blades or paddles. Information is encoded by the position of the mechanical elements; it is read when the shutter is in a fixed position.
The system was invented in 1792 in France by Claude Chappe, and was popular in the late eighteenth to early nineteenth century.
They were much faster than post riders for bringing a message over long distances, and also cheaper in their long-term operating costs, once constructed. Semaphore lines were a precursor of the electrical telegraph which would replace them half a century later. The electrical telegraph would in turn be cheaper, faster, and more private. The distance that an optical telegraph can bridge is limited by geography and weather; thus, in practical use, most optical telegraphs used lines of relay stations to bridge longer distances. This also prevented the optical telegraph from crossing long expanses of water, unless a convenient island could be used for a relay station.
In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers stretching from hilltop to hilltop, was for government use only: but something as simple as the law wasn't going to get in their way.
Thanks to Victoria Harrison for all her research and translation skills! Pictures of the original documents are uploaded here: https://drive.google.com/drive/folders/1xik-sJZMUf9GRNCAu7m7amQMZ7Mos1HM?usp=sharing
CG effects by Mat Hill: http://mat-hill.xyz/
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published: 01 Oct 2018
Claude Chappe and the Napoleon Telegraph
The development of technology for speedy long-distance communication dates back to antiquity, and reached its pre-electronic peak in the telegraph before Samuel Morse’s telegraph. Before wires crossed the world, Napoleonic France could send a message from Paris to Lille, a distance of some 250 kilometers, in ten minutes.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As very few images of the actual event are available in the Public Domain, images of similar objects and events are used for illustration.
You can purchase the bow tie worn in this episode at The Tie Bar:
https://www.thetiebar.com/?utm_campaign=BowtieLove&u...
published: 02 Mar 2022
How the Optical Telegraph worked
published: 02 Mar 2019
The Holyhead to Liverpool Optical Telegraph
An edited edition of BBC Coast
published: 11 Mar 2023
3D Printed Optical Telegraph Model
A demo for the project "3D Printed Optical Telegraph Model" on instructables - https://www.instructables.com/3D-Printed-Optical-Telegraph-Model/
0:00 just a short, quick message :)
1:23 the alphabet
3:00 Claude Chappe's very first message in 2 March 1791
Background music generated with mubert.com - https://mubert.com/render
published: 05 Oct 2021
original semaphore
The orginal mechanical semaphore that sent messages from Paris to Toulon in 20 minutes if everyone was awake.
published: 15 Jan 2008
Demonstration of a Chappe-style Optical Telegraph and Vail telegraph key in Blender.
Rendered in eevee, no sound because lazy :).
published: 14 Jan 2021
LONG-RANGE COMMUNICATION: The Optical Telegraph | The History of Computers, Ep. 12
For many today, computers are only devices of communication. However, before the Internet could provide this functionality, long-range communicated had to be developed. The Optical Telegraph is the first mechanical form of long-range communication. The Optical Telegraph, or Semaphore Telegraph System, is the first stop on the road that lead us to the Internet.
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published: 13 Jun 2020
The Telegraph Explained On 3 Minutes (ENG)
This video will explain the story of the telegraph on English, and why this invention was so important for the communication history
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published: 25 Sep 2020
Almost instant messaging - Optical telegraph system
Before the electric telegraph was introduced in the 1840s optical telecom systems were used to send messages in both directions over long distances. Tom Scott has done a video on this topic as well.
Prior to Electric signaling, there was a messages system then spanned the coastline between Holyhead and Liverpool. This allowed ships heading to the port of Liverpool to send messages a few hours before arrival.
The ships would signal Holyhead using flags in the rigging. Then a series of semaphores that were located on high points between Holyhead and Liverpool. All visible to each other the messages would be passed along the line until it's reached the end.
The Wirral hosted two of these signaling stations, one at Hilbre Island and one at Bidston Hill.
Bidston Hill is clearly viewed from L...
In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers s...
In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers stretching from hilltop to hilltop, was for government use only: but something as simple as the law wasn't going to get in their way.
Thanks to Victoria Harrison for all her research and translation skills! Pictures of the original documents are uploaded here: https://drive.google.com/drive/folders/1xik-sJZMUf9GRNCAu7m7amQMZ7Mos1HM?usp=sharing
CG effects by Mat Hill: http://mat-hill.xyz/
🟥 MORE FROM TOM: https://www.tomscott.com/
(you can find contact details and social links there too)
📰 WEEKLY NEWSLETTER with good stuff from the rest of the internet: https://www.tomscott.com/newsletter/
❓ LATERAL, free weekly podcast: https://lateralcast.com/ https://youtube.com/lateralcast/
➕ TOM SCOTT PLUS: https://youtube.com/tomscottplus
👥 THE TECHNICAL DIFFICULTIES: https://youtube.com/techdif
In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers stretching from hilltop to hilltop, was for government use only: but something as simple as the law wasn't going to get in their way.
Thanks to Victoria Harrison for all her research and translation skills! Pictures of the original documents are uploaded here: https://drive.google.com/drive/folders/1xik-sJZMUf9GRNCAu7m7amQMZ7Mos1HM?usp=sharing
CG effects by Mat Hill: http://mat-hill.xyz/
🟥 MORE FROM TOM: https://www.tomscott.com/
(you can find contact details and social links there too)
📰 WEEKLY NEWSLETTER with good stuff from the rest of the internet: https://www.tomscott.com/newsletter/
❓ LATERAL, free weekly podcast: https://lateralcast.com/ https://youtube.com/lateralcast/
➕ TOM SCOTT PLUS: https://youtube.com/tomscottplus
👥 THE TECHNICAL DIFFICULTIES: https://youtube.com/techdif
The development of technology for speedy long-distance communication dates back to antiquity, and reached its pre-electronic peak in the telegraph before Samuel...
The development of technology for speedy long-distance communication dates back to antiquity, and reached its pre-electronic peak in the telegraph before Samuel Morse’s telegraph. Before wires crossed the world, Napoleonic France could send a message from Paris to Lille, a distance of some 250 kilometers, in ten minutes.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As very few images of the actual event are available in the Public Domain, images of similar objects and events are used for illustration.
You can purchase the bow tie worn in this episode at The Tie Bar:
https://www.thetiebar.com/?utm_campaign=BowtieLove&utm_medium=YouTube&utm_source=LanceGeiger
All events are portrayed in historical context and for educational purposes. No images or content are primarily intended to shock and disgust. Those who do not learn from history are doomed to repeat it. Non censuram.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
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Please send suggestions for future episodes: [email protected]
The History Guy: History Deserves to Be Remembered is the place to find short snippets of forgotten history from five to fifteen minutes long. If you like history too, this is the channel for you.
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Script by THG
#history #thehistoryguy #France
The development of technology for speedy long-distance communication dates back to antiquity, and reached its pre-electronic peak in the telegraph before Samuel Morse’s telegraph. Before wires crossed the world, Napoleonic France could send a message from Paris to Lille, a distance of some 250 kilometers, in ten minutes.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As very few images of the actual event are available in the Public Domain, images of similar objects and events are used for illustration.
You can purchase the bow tie worn in this episode at The Tie Bar:
https://www.thetiebar.com/?utm_campaign=BowtieLove&utm_medium=YouTube&utm_source=LanceGeiger
All events are portrayed in historical context and for educational purposes. No images or content are primarily intended to shock and disgust. Those who do not learn from history are doomed to repeat it. Non censuram.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
Facebook: https://www.facebook.com/TheHistoryGuyYT/
Please send suggestions for future episodes: [email protected]
The History Guy: History Deserves to Be Remembered is the place to find short snippets of forgotten history from five to fifteen minutes long. If you like history too, this is the channel for you.
Subscribe for more forgotten history: https://www.youtube.com/channel/UC4sEmXUuWIFlxRIFBRV6VXQ?sub_confirmation=1.
Awesome The History Guy merchandise is available at:
https://thehistoryguy-shop.fourthwall.com/
Script by THG
#history #thehistoryguy #France
A demo for the project "3D Printed Optical Telegraph Model" on instructables - https://www.instructables.com/3D-Printed-Optical-Telegraph-Model/
0:00 just a sho...
A demo for the project "3D Printed Optical Telegraph Model" on instructables - https://www.instructables.com/3D-Printed-Optical-Telegraph-Model/
0:00 just a short, quick message :)
1:23 the alphabet
3:00 Claude Chappe's very first message in 2 March 1791
Background music generated with mubert.com - https://mubert.com/render
A demo for the project "3D Printed Optical Telegraph Model" on instructables - https://www.instructables.com/3D-Printed-Optical-Telegraph-Model/
0:00 just a short, quick message :)
1:23 the alphabet
3:00 Claude Chappe's very first message in 2 March 1791
Background music generated with mubert.com - https://mubert.com/render
For many today, computers are only devices of communication. However, before the Internet could provide this functionality, long-range communicated had to be de...
For many today, computers are only devices of communication. However, before the Internet could provide this functionality, long-range communicated had to be developed. The Optical Telegraph is the first mechanical form of long-range communication. The Optical Telegraph, or Semaphore Telegraph System, is the first stop on the road that lead us to the Internet.
SHARE CHRIST, SUPPORT THE CHANNEL: Use promo code "RHODES" for 15% off your purchase at https://savedbychristapparels.com/.
READ TODAY'S MEDIUM BLOG: https://medium.com/tech-is-a-tool/on-the-road-to-the-internet-the-optical-telegraph-a8890744b654
MORE ON COMPUTER HISTORY: http://tinyurl.com/computer-history
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#TechIsATool #ComputerHistory
For many today, computers are only devices of communication. However, before the Internet could provide this functionality, long-range communicated had to be developed. The Optical Telegraph is the first mechanical form of long-range communication. The Optical Telegraph, or Semaphore Telegraph System, is the first stop on the road that lead us to the Internet.
SHARE CHRIST, SUPPORT THE CHANNEL: Use promo code "RHODES" for 15% off your purchase at https://savedbychristapparels.com/.
READ TODAY'S MEDIUM BLOG: https://medium.com/tech-is-a-tool/on-the-road-to-the-internet-the-optical-telegraph-a8890744b654
MORE ON COMPUTER HISTORY: http://tinyurl.com/computer-history
MORE ON TECH IS A TOOL: https://tinyurl.com/techisatool
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#TechIsATool #ComputerHistory
This video will explain the story of the telegraph on English, and why this invention was so important for the communication history
▶ SUBSCRIBE to become an A...
This video will explain the story of the telegraph on English, and why this invention was so important for the communication history
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The Telegraph Explained On 3 Minutes (ENG) - Thank you for watching!
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____________________________________________________________________
Like and share this video.
Subscribe to my channel to join Team trains and be awesome.
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____________________________________________________________________
This video will explain the story of the telegraph on English, and why this invention was so important for the communication history
▶ SUBSCRIBE to become an Awesome train: https://www.youtube.com/channel/UCbdrFUQLQ7Y86A1gQK9ucaQ?sub_confirmation=1
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The Telegraph Explained On 3 Minutes (ENG) - Thank you for watching!
Have any ideas for a video? Make sure to leave a comment to be featured in my next video
____________________________________________________________________
Like and share this video.
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____________________________________________________________________
Before the electric telegraph was introduced in the 1840s optical telecom systems were used to send messages in both directions over long distances. Tom Scott h...
Before the electric telegraph was introduced in the 1840s optical telecom systems were used to send messages in both directions over long distances. Tom Scott has done a video on this topic as well.
Prior to Electric signaling, there was a messages system then spanned the coastline between Holyhead and Liverpool. This allowed ships heading to the port of Liverpool to send messages a few hours before arrival.
The ships would signal Holyhead using flags in the rigging. Then a series of semaphores that were located on high points between Holyhead and Liverpool. All visible to each other the messages would be passed along the line until it's reached the end.
The Wirral hosted two of these signaling stations, one at Hilbre Island and one at Bidston Hill.
Bidston Hill is clearly viewed from Liverpool where it could return a message back to Holyhead
The Wirral channel had a variety of Wirral Videos including, 'Hidden Wirral', ' Wirral Railways' and Sport. All filmed on the Wirral Peninsula.
The Peninsula includes towns such as
Birkenhead, Wallasey, Liscard, Moreton, Hoylake, West Kirby, Heswall, Neston, Eastham, Ellesmere Port, Bromborough, Bebington, Oxton, Tranmere
Produced by the Wirral Channel for YouTube,
1080p50
Before the electric telegraph was introduced in the 1840s optical telecom systems were used to send messages in both directions over long distances. Tom Scott has done a video on this topic as well.
Prior to Electric signaling, there was a messages system then spanned the coastline between Holyhead and Liverpool. This allowed ships heading to the port of Liverpool to send messages a few hours before arrival.
The ships would signal Holyhead using flags in the rigging. Then a series of semaphores that were located on high points between Holyhead and Liverpool. All visible to each other the messages would be passed along the line until it's reached the end.
The Wirral hosted two of these signaling stations, one at Hilbre Island and one at Bidston Hill.
Bidston Hill is clearly viewed from Liverpool where it could return a message back to Holyhead
The Wirral channel had a variety of Wirral Videos including, 'Hidden Wirral', ' Wirral Railways' and Sport. All filmed on the Wirral Peninsula.
The Peninsula includes towns such as
Birkenhead, Wallasey, Liscard, Moreton, Hoylake, West Kirby, Heswall, Neston, Eastham, Ellesmere Port, Bromborough, Bebington, Oxton, Tranmere
Produced by the Wirral Channel for YouTube,
1080p50
In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers stretching from hilltop to hilltop, was for government use only: but something as simple as the law wasn't going to get in their way.
Thanks to Victoria Harrison for all her research and translation skills! Pictures of the original documents are uploaded here: https://drive.google.com/drive/folders/1xik-sJZMUf9GRNCAu7m7amQMZ7Mos1HM?usp=sharing
CG effects by Mat Hill: http://mat-hill.xyz/
🟥 MORE FROM TOM: https://www.tomscott.com/
(you can find contact details and social links there too)
📰 WEEKLY NEWSLETTER with good stuff from the rest of the internet: https://www.tomscott.com/newsletter/
❓ LATERAL, free weekly podcast: https://lateralcast.com/ https://youtube.com/lateralcast/
➕ TOM SCOTT PLUS: https://youtube.com/tomscottplus
👥 THE TECHNICAL DIFFICULTIES: https://youtube.com/techdif
The development of technology for speedy long-distance communication dates back to antiquity, and reached its pre-electronic peak in the telegraph before Samuel Morse’s telegraph. Before wires crossed the world, Napoleonic France could send a message from Paris to Lille, a distance of some 250 kilometers, in ten minutes.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As very few images of the actual event are available in the Public Domain, images of similar objects and events are used for illustration.
You can purchase the bow tie worn in this episode at The Tie Bar:
https://www.thetiebar.com/?utm_campaign=BowtieLove&utm_medium=YouTube&utm_source=LanceGeiger
All events are portrayed in historical context and for educational purposes. No images or content are primarily intended to shock and disgust. Those who do not learn from history are doomed to repeat it. Non censuram.
Support The History Guy on Patreon: https://www.patreon.com/TheHistoryGuy
Facebook: https://www.facebook.com/TheHistoryGuyYT/
Please send suggestions for future episodes: [email protected]
The History Guy: History Deserves to Be Remembered is the place to find short snippets of forgotten history from five to fifteen minutes long. If you like history too, this is the channel for you.
Subscribe for more forgotten history: https://www.youtube.com/channel/UC4sEmXUuWIFlxRIFBRV6VXQ?sub_confirmation=1.
Awesome The History Guy merchandise is available at:
https://thehistoryguy-shop.fourthwall.com/
Script by THG
#history #thehistoryguy #France
A demo for the project "3D Printed Optical Telegraph Model" on instructables - https://www.instructables.com/3D-Printed-Optical-Telegraph-Model/
0:00 just a short, quick message :)
1:23 the alphabet
3:00 Claude Chappe's very first message in 2 March 1791
Background music generated with mubert.com - https://mubert.com/render
For many today, computers are only devices of communication. However, before the Internet could provide this functionality, long-range communicated had to be developed. The Optical Telegraph is the first mechanical form of long-range communication. The Optical Telegraph, or Semaphore Telegraph System, is the first stop on the road that lead us to the Internet.
SHARE CHRIST, SUPPORT THE CHANNEL: Use promo code "RHODES" for 15% off your purchase at https://savedbychristapparels.com/.
READ TODAY'S MEDIUM BLOG: https://medium.com/tech-is-a-tool/on-the-road-to-the-internet-the-optical-telegraph-a8890744b654
MORE ON COMPUTER HISTORY: http://tinyurl.com/computer-history
MORE ON TECH IS A TOOL: https://tinyurl.com/techisatool
FOLLOW ME ON MEDIUM: https://medium.com/@benjamin.rhodes
FOLLOW TECH IS A TOOL ON MEDIUM: https://medium.com/tech-is-a-tool
FOLLOW ME ON SOCIAL MEDIA:
Facebook: https://www.facebook.com/techrhodes
Instagram: https://www.instagram.com/techrhodes
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#TechIsATool #ComputerHistory
This video will explain the story of the telegraph on English, and why this invention was so important for the communication history
▶ SUBSCRIBE to become an Awesome train: https://www.youtube.com/channel/UCbdrFUQLQ7Y86A1gQK9ucaQ?sub_confirmation=1
▶ SUBSCRIBE to my second channel: https://www.youtube.com/channel/UCd2-...
▶ JOIN Crazytrain Community today: https://discord.gg/vthy4Pp
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The Telegraph Explained On 3 Minutes (ENG) - Thank you for watching!
Have any ideas for a video? Make sure to leave a comment to be featured in my next video
____________________________________________________________________
Like and share this video.
Subscribe to my channel to join Team trains and be awesome.
Don't forget to push on the notification bell to stay tuned for my other videos in the future.
____________________________________________________________________
Before the electric telegraph was introduced in the 1840s optical telecom systems were used to send messages in both directions over long distances. Tom Scott has done a video on this topic as well.
Prior to Electric signaling, there was a messages system then spanned the coastline between Holyhead and Liverpool. This allowed ships heading to the port of Liverpool to send messages a few hours before arrival.
The ships would signal Holyhead using flags in the rigging. Then a series of semaphores that were located on high points between Holyhead and Liverpool. All visible to each other the messages would be passed along the line until it's reached the end.
The Wirral hosted two of these signaling stations, one at Hilbre Island and one at Bidston Hill.
Bidston Hill is clearly viewed from Liverpool where it could return a message back to Holyhead
The Wirral channel had a variety of Wirral Videos including, 'Hidden Wirral', ' Wirral Railways' and Sport. All filmed on the Wirral Peninsula.
The Peninsula includes towns such as
Birkenhead, Wallasey, Liscard, Moreton, Hoylake, West Kirby, Heswall, Neston, Eastham, Ellesmere Port, Bromborough, Bebington, Oxton, Tranmere
Produced by the Wirral Channel for YouTube,
1080p50
A semaphore telegraph, optical telegraph, shutter telegraph chain, Chappe telegraph, or Napoleonic semaphore is a system of conveying information by means of visual signals, using towers with pivoting shutters, also known as blades or paddles. Information is encoded by the position of the mechanical elements; it is read when the shutter is in a fixed position.
The system was invented in 1792 in France by Claude Chappe, and was popular in the late eighteenth to early nineteenth century.
They were much faster than post riders for bringing a message over long distances, and also cheaper in their long-term operating costs, once constructed. Semaphore lines were a precursor of the electrical telegraph which would replace them half a century later. The electrical telegraph would in turn be cheaper, faster, and more private. The distance that an optical telegraph can bridge is limited by geography and weather; thus, in practical use, most optical telegraphs used lines of relay stations to bridge longer distances. This also prevented the optical telegraph from crossing long expanses of water, unless a convenient island could be used for a relay station.
fighting Christian nationalism... That anxiety about the optics of her leadership surfaced even before she took the job. During her interview, Laser recounted to the Jewish Telegraphic Agency, she asked the board outright ... The results were mixed ... Capitol.
That anxiety about the optics of her leadership surfaced even before she took the job. During her interview, Laser recounted to the Jewish Telegraphic Agency, she asked the board outright.
But the optics were not great. TelegraphSport has since reported that United are willing to listen to offers for the 27-year-old ... The Telegraph values your comments but kindly requests all posts are on topic, constructive and respectful.
Sierra LeoneTelegraph... The optics of a thousand Kilo elephant in a well-lit room most Pan-Africanist are opaque to or is obscured by rose-tinted glasses or tight-fitting blinkers is the inept and ...
As Local DemocracyReporterElliot Jessett wrote, residents are battling against the installation of telegraph poles by telecoms firm Openreach, which wants to link properties to its Ultrafast Fibre optic broadband network.
Many of the projects would install fiber-optic internet infrastructure in areas where it doesn’t exist ... Fiber technician Jesse Clendenen with Sparklight installs a fiber-optic internet connection to a home in May 2022 in Longview.
She told the Telegraph... Many houses in the area were built on shallow foundations, 'not more than six inches on clay soil', Mr Field told the Telegraph ... Drivers slam 'optical illusion' 2D speed bumps ...
The series can now be viewed online ... About nine years ago, the Keisters both began working at Walmart's NorthTelegraphRoad store ... Cassandra works in the store’s optical center ... 9, 2018 ... “The doctor from the optical center was there and some cashiers.”.
OpenAI CEOSam Altman is a noted AI doomsayer, often airing fears â" whether for optics or out of personal conviction -- that AI "may lead to human extinction." But telegraphing that OpenAI might ...
The idea of telecommunications existed long before the telegraph and the telephone, or at least the desire was there. Before the development of wire, radio and optical communication, attempts at ...
... when the encounter happened, according to The Telegraph ... Ministry of Defense sources told The Telegraph that the picture is likely an optical illusion caused by the angle of the Helcoop’s camera.
The Hunga Tonga volcano eruption triggered lightning and a tsunami ... About 45 miles from the volcano, the eruption cut off a seafloor fiber-optic cable ... first for telegraph cables, then telephone lines, and now optical fibers that carry the internet ... .