- published: 15 Sep 2012
- views: 1440
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Brief look at the history of the electric telegraph - how it came to be, how it was used, and the early problems it encountered. Namely.. networking congestion, which was caused by routing and queuing delays!
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the late 1800's by Western Electric and the key is an early 1940's design.
A pre wireless technology used mainly by the 19th century railroad system to transmit information electronically which in turn is the grandfather of today's modern internet.
Please forgive my sending, very very rusty!
- published: 22 Mar 2011
- views: 22437
Aida & Cristina's project for National History Day on the electric telegraph during the Civil War.
- published: 16 Mar 2010
- views: 1366
A short introduction to Electronic telegraph.
Developers of Electrical Telegraph System: Samuel Morse, Joseph Henry, Alfred Vail.
Morse telegraph was patented in USA 1837.
Videos:
http://archive.org/details/ASC-139
http://archive.org/details/1941-03-06_Big_Da-Dit-Da_Class_Graduated
http://archive.org/details/NPC-16700
http://archive.org/details/BiographPostmanPickingUpMailRFD
Sources of text and images:
http://en.wikipedia.org/wiki/Morse_code
http://en.wikipedia.org/wiki/Telegraphy
http://en.wikipedia.org/wiki/Samuel_F._B._Morse
http://en.wikipedia.org/wiki/Joseph_Henry
http://en.wikipedia.org/wiki/Alfred_Vail
Music:
Get Outside
- published: 27 Sep 2013
- views: 5693
Commercial featuring the electric telegraph. By Kaitlyn Kauffman and Jonathan Frank
- published: 10 Feb 2014
- views: 511
In this video series filmed with the help of The American Civil War Association we cover different aspects, inventions, and ideas that played an important part in the American Civil War.
Here is some more information about the Electrical Telegraph from Wiki:
An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via dedicated telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded messages.
The electrical telegraph, or more commonly just telegraph, superseded optical semaphore telegraph systems, such as Claude Chappe's towers designed for communication among the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. In a matter of decades after their creation, electrical telegraph networks permitted people and commerce to transmit messages across both continents and oceans almost instantly, with widespread social and economic impacts.
This video is a Blue Number Media Production.
- published: 27 Jan 2016
- views: 181
The growth of the railways from 1825 onwards brought with it a need for a new form of communications that could work over large distances and in any weather. Charles Wheatstone and William Cooke were two Englishmen who on 25th July 1837 demonstrated a system for sending messages using electricity. A set of magnetic needles could be deflected by an electric current such that the needles would point to a particular letter on a grid. This demonstration shows how a 4 needle telegraph - a slightly later model of the July 1837 original - operates and how letters could be communicated. The needle telegraph started a telecommunications revolution based on electrical communication.
- published: 28 Feb 2008
- views: 9638
TELEGRAPH
It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on using Morse code in which each letter is given a code of dots and lines. Important parts of telegraph system are electro magnet (M),battery (B), Morse key (K), and long wire called cable.
Different parts of the telegraph are connected at the place (A).
The Morse Key (K) is connected to positive terminal of battery (B), and the negative terminal is connected to ground (Earth).
From the Morse Key the cable runs to the place B. At the place B the cable is connected to electro magnet (M)and ground (Earth). An armature is held in the position, in contact with rod K, with the help of springs (S).
When the Morse Key K is pressed, the circuit is completed through ground which is a conductor. The electro magnet attracts the armature A and it produces a sound 'click' on striking the rod K2. On releasing the Morse key K, the circuit breaks and the armature goes to its original position touching the rod Kl.
If the time of contact of K is more it is called a line and if it is very short it is called dot.
Every letter like A,B,C,D and so on is allotted a code of dots and lines.
With the help of the code the message is transmitted at A and decoded at the station B to receive the message.
- published: 28 Aug 2012
- views: 41210
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fine on two "D" cells. This type of sounder was used from the mid 1800s, through the first half of the 20th century, for land line telegraphy.
- published: 14 Mar 2014
- views: 404
An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded text messages.
The electrical telegraph, or more commonly just 'telegraph', superseded optical semaphore telegraph systems, such as those designed by Claude Chappe for the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. In a matter of decades after their creation, electrical telegraph networks permitted people and commerce to almost instantly transmit messages across both continents and oceans, with widespread social and economic impacts.
From early studies of electricity, electrical phenomena were known to travel with great speed, and many experimenters worked on the application of electricity to communications at a distance.
All the known effects of electricity - such as sparks, electrostatic attraction, chemical changes, electric shocks, and later electromagnetism - were applied to the problems of detecting controlled transmissions of electricity at various distances.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Electrical_telegraph
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
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8:30Brief History of Latency: Electric Telegraph
Brief History of Latency: Electric TelegraphBrief History of Latency: Electric Telegraph
Brief look at the history of the electric telegraph - how it came to be, how it was used, and the early problems it encountered. Namely.. networking congestion, which was caused by routing and queuing delays! -
2:11Western Electric Telegraph Sounder. .
Western Electric Telegraph Sounder. .Western Electric Telegraph Sounder. .
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the late 1800's by Western Electric and the key is an early 1940's design. A pre wireless technology used mainly by the 19th century railroad system to transmit information electronically which in turn is the grandfather of today's modern internet. Please forgive my sending, very very rusty! -
9:11NHD- The Electric Telegraph
NHD- The Electric TelegraphNHD- The Electric Telegraph
Aida & Cristina's project for National History Day on the electric telegraph during the Civil War. -
2:23A short introduction to Electrical Telegraph
A short introduction to Electrical TelegraphA short introduction to Electrical Telegraph
A short introduction to Electronic telegraph. Developers of Electrical Telegraph System: Samuel Morse, Joseph Henry, Alfred Vail. Morse telegraph was patented in USA 1837. Videos: http://archive.org/details/ASC-139 http://archive.org/details/1941-03-06_Big_Da-Dit-Da_Class_Graduated http://archive.org/details/NPC-16700 http://archive.org/details/BiographPostmanPickingUpMailRFD Sources of text and images: http://en.wikipedia.org/wiki/Morse_code http://en.wikipedia.org/wiki/Telegraphy http://en.wikipedia.org/wiki/Samuel_F._B._Morse http://en.wikipedia.org/wiki/Joseph_Henry http://en.wikipedia.org/wiki/Alfred_Vail Music: Get Outside -
4:02Electric Telegraph Commercial
Electric Telegraph CommercialElectric Telegraph Commercial
Commercial featuring the electric telegraph. By Kaitlyn Kauffman and Jonathan Frank -
8:04Civil War History: The Telegraph (Electrical Telegraph)
Civil War History: The Telegraph (Electrical Telegraph)Civil War History: The Telegraph (Electrical Telegraph)
In this video series filmed with the help of The American Civil War Association we cover different aspects, inventions, and ideas that played an important part in the American Civil War. Here is some more information about the Electrical Telegraph from Wiki: An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via dedicated telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded messages. The electrical telegraph, or more commonly just telegraph, superseded optical semaphore telegraph systems, such as Claude Chappe's towers designed for communication among the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. In a matter of decades after their creation, electrical telegraph networks permitted people and commerce to transmit messages across both continents and oceans almost instantly, with widespread social and economic impacts. This video is a Blue Number Media Production. -
3:35Needle Telegraph
Needle TelegraphNeedle Telegraph
The growth of the railways from 1825 onwards brought with it a need for a new form of communications that could work over large distances and in any weather. Charles Wheatstone and William Cooke were two Englishmen who on 25th July 1837 demonstrated a system for sending messages using electricity. A set of magnetic needles could be deflected by an electric current such that the needles would point to a particular letter on a grid. This demonstration shows how a 4 needle telegraph - a slightly later model of the July 1837 original - operates and how letters could be communicated. The needle telegraph started a telecommunications revolution based on electrical communication. -
6:50Samuel Morse and the Electrical Telegraph
Samuel Morse and the Electrical TelegraphSamuel Morse and the Electrical Telegraph
For a history class. -
2:30Working of a Telegraph - Physics
Working of a Telegraph - PhysicsWorking of a Telegraph - Physics
TELEGRAPH It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on using Morse code in which each letter is given a code of dots and lines. Important parts of telegraph system are electro magnet (M),battery (B), Morse key (K), and long wire called cable. Different parts of the telegraph are connected at the place (A). The Morse Key (K) is connected to positive terminal of battery (B), and the negative terminal is connected to ground (Earth). From the Morse Key the cable runs to the place B. At the place B the cable is connected to electro magnet (M)and ground (Earth). An armature is held in the position, in contact with rod K, with the help of springs (S). When the Morse Key K is pressed, the circuit is completed through ground which is a conductor. The electro magnet attracts the armature A and it produces a sound 'click' on striking the rod K2. On releasing the Morse key K, the circuit breaks and the armature goes to its original position touching the rod Kl. If the time of contact of K is more it is called a line and if it is very short it is called dot. Every letter like A,B,C,D and so on is allotted a code of dots and lines. With the help of the code the message is transmitted at A and decoded at the station B to receive the message. -
0:35Signal Electric Telegraph Sounder
Signal Electric Telegraph SounderSignal Electric Telegraph Sounder
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fine on two "D" cells. This type of sounder was used from the mid 1800s, through the first half of the 20th century, for land line telegraphy.
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-
Brief History of Latency: Electric Telegraph
Brief look at the history of the electric telegraph - how it came to be, how it was used, and the early problems it encountered. Namely.. networking congestion, which was caused by routing and queuing delays! -
Western Electric Telegraph Sounder. .
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the late 1800's by Western Electric and the key is an early 1940's design. A pre wireless technology used mainly by the 19th century railroad system to transmit information electronically which in turn is the grandfather of today's modern internet. Please forgive my sending, very very rusty! -
NHD- The Electric Telegraph
Aida & Cristina's project for National History Day on the electric telegraph during the Civil War. -
A short introduction to Electrical Telegraph
A short introduction to Electronic telegraph. Developers of Electrical Telegraph System: Samuel Morse, Joseph Henry, Alfred Vail. Morse telegraph was patented in USA 1837. Videos: http://archive.org/details/ASC-139 http://archive.org/details/1941-03-06_Big_Da-Dit-Da_Class_Graduated http://archive.org/details/NPC-16700 http://archive.org/details/BiographPostmanPickingUpMailRFD Sources of text and images: http://en.wikipedia.org/wiki/Morse_code http://en.wikipedia.org/wiki/Telegraphy http://en.wikipedia.org/wiki/Samuel_F._B._Morse http://en.wikipedia.org/wiki/Joseph_Henry http://en.wikipedia.org/wiki/Alfred_Vail Music: Get Outside -
Electric Telegraph Commercial
Commercial featuring the electric telegraph. By Kaitlyn Kauffman and Jonathan Frank -
Civil War History: The Telegraph (Electrical Telegraph)
In this video series filmed with the help of The American Civil War Association we cover different aspects, inventions, and ideas that played an important part in the American Civil War. Here is some more information about the Electrical Telegraph from Wiki: An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via dedicated telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded messages. The electrical telegraph, or more commonly just telegraph, superseded optical semaphore telegraph systems, such as Claude Chappe's towers designed for communication among the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. ... -
Needle Telegraph
The growth of the railways from 1825 onwards brought with it a need for a new form of communications that could work over large distances and in any weather. Charles Wheatstone and William Cooke were two Englishmen who on 25th July 1837 demonstrated a system for sending messages using electricity. A set of magnetic needles could be deflected by an electric current such that the needles would point to a particular letter on a grid. This demonstration shows how a 4 needle telegraph - a slightly later model of the July 1837 original - operates and how letters could be communicated. The needle telegraph started a telecommunications revolution based on electrical communication. -
Samuel Morse and the Electrical Telegraph
For a history class. -
Working of a Telegraph - Physics
TELEGRAPH It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on using Morse code in which each letter is given a code of dots and lines. Important parts of telegraph system are electro magnet (M),battery (B), Morse key (K), and long wire called cable. Different parts of the telegraph are connected at the place (A). The Morse Key (K) is connected to positive terminal of battery (B), and the negative terminal is connected to ground (Earth). From the Morse Key the cable runs to the place B. At the place B the cable is connected to electro magnet (M)and ground (Earth). An armature is held in the position, in contact with rod K, with the help of springs (S). When the Morse Key K is pressed, the circuit... -
Signal Electric Telegraph Sounder
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fine on two "D" cells. This type of sounder was used from the mid 1800s, through the first half of the 20th century, for land line telegraphy.
Brief History of Latency: Electric Telegraph
- Order: Reorder
- Duration: 8:30
- Updated: 15 Sep 2012
- views: 1440
Brief look at the history of the electric telegraph - how it came to be, how it was used, and the early problems it encountered. Namely.. networking congestion,...
Brief look at the history of the electric telegraph - how it came to be, how it was used, and the early problems it encountered. Namely.. networking congestion, which was caused by routing and queuing delays!
wn.com/Brief History Of Latency Electric Telegraph
Brief look at the history of the electric telegraph - how it came to be, how it was used, and the early problems it encountered. Namely.. networking congestion, which was caused by routing and queuing delays!
- published: 15 Sep 2012
- views: 1440
Western Electric Telegraph Sounder. .
- Order: Reorder
- Duration: 2:11
- Updated: 22 Mar 2011
- views: 22437
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the late 1800's by Western Electric and the key is an early 1940's design....
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the late 1800's by Western Electric and the key is an early 1940's design.
A pre wireless technology used mainly by the 19th century railroad system to transmit information electronically which in turn is the grandfather of today's modern internet.
Please forgive my sending, very very rusty!
wn.com/Western Electric Telegraph Sounder. .
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the late 1800's by Western Electric and the key is an early 1940's design.
A pre wireless technology used mainly by the 19th century railroad system to transmit information electronically which in turn is the grandfather of today's modern internet.
Please forgive my sending, very very rusty!
- published: 22 Mar 2011
- views: 22437
NHD- The Electric Telegraph
- Order: Reorder
- Duration: 9:11
- Updated: 16 Mar 2010
- views: 1366
Aida & Cristina's project for National History Day on the electric telegraph during the Civil War.
- published: 16 Mar 2010
- views: 1366
A short introduction to Electrical Telegraph
- Order: Reorder
- Duration: 2:23
- Updated: 27 Sep 2013
- views: 5693
A short introduction to Electronic telegraph.
Developers of Electrical Telegraph System: Samuel Morse, Joseph Henry, Alfred Vail.
Morse telegraph was patented ...
A short introduction to Electronic telegraph.
Developers of Electrical Telegraph System: Samuel Morse, Joseph Henry, Alfred Vail.
Morse telegraph was patented in USA 1837.
Videos:
http://archive.org/details/ASC-139
http://archive.org/details/1941-03-06_Big_Da-Dit-Da_Class_Graduated
http://archive.org/details/NPC-16700
http://archive.org/details/BiographPostmanPickingUpMailRFD
Sources of text and images:
http://en.wikipedia.org/wiki/Morse_code
http://en.wikipedia.org/wiki/Telegraphy
http://en.wikipedia.org/wiki/Samuel_F._B._Morse
http://en.wikipedia.org/wiki/Joseph_Henry
http://en.wikipedia.org/wiki/Alfred_Vail
Music:
Get Outside
wn.com/A Short Introduction To Electrical Telegraph
A short introduction to Electronic telegraph.
Developers of Electrical Telegraph System: Samuel Morse, Joseph Henry, Alfred Vail.
Morse telegraph was patented in USA 1837.
Videos:
http://archive.org/details/ASC-139
http://archive.org/details/1941-03-06_Big_Da-Dit-Da_Class_Graduated
http://archive.org/details/NPC-16700
http://archive.org/details/BiographPostmanPickingUpMailRFD
Sources of text and images:
http://en.wikipedia.org/wiki/Morse_code
http://en.wikipedia.org/wiki/Telegraphy
http://en.wikipedia.org/wiki/Samuel_F._B._Morse
http://en.wikipedia.org/wiki/Joseph_Henry
http://en.wikipedia.org/wiki/Alfred_Vail
Music:
Get Outside
- published: 27 Sep 2013
- views: 5693
Electric Telegraph Commercial
- Order: Reorder
- Duration: 4:02
- Updated: 10 Feb 2014
- views: 511
Commercial featuring the electric telegraph. By Kaitlyn Kauffman and Jonathan Frank
- published: 10 Feb 2014
- views: 511
Civil War History: The Telegraph (Electrical Telegraph)
- Order: Reorder
- Duration: 8:04
- Updated: 27 Jan 2016
- views: 181
In this video series filmed with the help of The American Civil War Association we cover different aspects, inventions, and ideas that played an important part ...
In this video series filmed with the help of The American Civil War Association we cover different aspects, inventions, and ideas that played an important part in the American Civil War.
Here is some more information about the Electrical Telegraph from Wiki:
An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via dedicated telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded messages.
The electrical telegraph, or more commonly just telegraph, superseded optical semaphore telegraph systems, such as Claude Chappe's towers designed for communication among the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. In a matter of decades after their creation, electrical telegraph networks permitted people and commerce to transmit messages across both continents and oceans almost instantly, with widespread social and economic impacts.
This video is a Blue Number Media Production.
wn.com/Civil War History The Telegraph (Electrical Telegraph)
In this video series filmed with the help of The American Civil War Association we cover different aspects, inventions, and ideas that played an important part in the American Civil War.
Here is some more information about the Electrical Telegraph from Wiki:
An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via dedicated telecommunication lines or radio. The electromagnetic telegraph is a device for human-to-human transmission of coded messages.
The electrical telegraph, or more commonly just telegraph, superseded optical semaphore telegraph systems, such as Claude Chappe's towers designed for communication among the French military, and Friedrich Clemens Gerke for the Prussian military, thus becoming the first form of electrical telecommunications. In a matter of decades after their creation, electrical telegraph networks permitted people and commerce to transmit messages across both continents and oceans almost instantly, with widespread social and economic impacts.
This video is a Blue Number Media Production.
- published: 27 Jan 2016
- views: 181
Needle Telegraph
- Order: Reorder
- Duration: 3:35
- Updated: 28 Feb 2008
- views: 9638
The growth of the railways from 1825 onwards brought with it a need for a new form of communications that could work over large distances and in any weather. C...
The growth of the railways from 1825 onwards brought with it a need for a new form of communications that could work over large distances and in any weather. Charles Wheatstone and William Cooke were two Englishmen who on 25th July 1837 demonstrated a system for sending messages using electricity. A set of magnetic needles could be deflected by an electric current such that the needles would point to a particular letter on a grid. This demonstration shows how a 4 needle telegraph - a slightly later model of the July 1837 original - operates and how letters could be communicated. The needle telegraph started a telecommunications revolution based on electrical communication.
wn.com/Needle Telegraph
The growth of the railways from 1825 onwards brought with it a need for a new form of communications that could work over large distances and in any weather. Charles Wheatstone and William Cooke were two Englishmen who on 25th July 1837 demonstrated a system for sending messages using electricity. A set of magnetic needles could be deflected by an electric current such that the needles would point to a particular letter on a grid. This demonstration shows how a 4 needle telegraph - a slightly later model of the July 1837 original - operates and how letters could be communicated. The needle telegraph started a telecommunications revolution based on electrical communication.
- published: 28 Feb 2008
- views: 9638
Samuel Morse and the Electrical Telegraph
- Order: Reorder
- Duration: 6:50
- Updated: 02 Apr 2015
- views: 16
For a history class.
For a history class.
wn.com/Samuel Morse And The Electrical Telegraph
For a history class.
- published: 02 Apr 2015
- views: 16
Working of a Telegraph - Physics
- Order: Reorder
- Duration: 2:30
- Updated: 28 Aug 2012
- views: 41210
TELEGRAPH
It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on usi...
TELEGRAPH
It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on using Morse code in which each letter is given a code of dots and lines. Important parts of telegraph system are electro magnet (M),battery (B), Morse key (K), and long wire called cable.
Different parts of the telegraph are connected at the place (A).
The Morse Key (K) is connected to positive terminal of battery (B), and the negative terminal is connected to ground (Earth).
From the Morse Key the cable runs to the place B. At the place B the cable is connected to electro magnet (M)and ground (Earth). An armature is held in the position, in contact with rod K, with the help of springs (S).
When the Morse Key K is pressed, the circuit is completed through ground which is a conductor. The electro magnet attracts the armature A and it produces a sound 'click' on striking the rod K2. On releasing the Morse key K, the circuit breaks and the armature goes to its original position touching the rod Kl.
If the time of contact of K is more it is called a line and if it is very short it is called dot.
Every letter like A,B,C,D and so on is allotted a code of dots and lines.
With the help of the code the message is transmitted at A and decoded at the station B to receive the message.
wn.com/Working Of A Telegraph Physics
TELEGRAPH
It is the first modern instrument used in sending messages to a distant place in a very short time. The working of telegraph is made efficient on using Morse code in which each letter is given a code of dots and lines. Important parts of telegraph system are electro magnet (M),battery (B), Morse key (K), and long wire called cable.
Different parts of the telegraph are connected at the place (A).
The Morse Key (K) is connected to positive terminal of battery (B), and the negative terminal is connected to ground (Earth).
From the Morse Key the cable runs to the place B. At the place B the cable is connected to electro magnet (M)and ground (Earth). An armature is held in the position, in contact with rod K, with the help of springs (S).
When the Morse Key K is pressed, the circuit is completed through ground which is a conductor. The electro magnet attracts the armature A and it produces a sound 'click' on striking the rod K2. On releasing the Morse key K, the circuit breaks and the armature goes to its original position touching the rod Kl.
If the time of contact of K is more it is called a line and if it is very short it is called dot.
Every letter like A,B,C,D and so on is allotted a code of dots and lines.
With the help of the code the message is transmitted at A and decoded at the station B to receive the message.
- published: 28 Aug 2012
- views: 41210
Signal Electric Telegraph Sounder
- Order: Reorder
- Duration: 0:35
- Updated: 14 Mar 2014
- views: 404
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fine on two "D" cells. This type of sounder was used from the mid 1800s, ...
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fine on two "D" cells. This type of sounder was used from the mid 1800s, through the first half of the 20th century, for land line telegraphy.
wn.com/Signal Electric Telegraph Sounder
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fine on two "D" cells. This type of sounder was used from the mid 1800s, through the first half of the 20th century, for land line telegraphy.
- published: 14 Mar 2014
- views: 404
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8:30
Brief History of Latency: Electric Telegraph
Brief look at the history of the electric telegraph - how it came to be, how it was used, ...
published: 15 Sep 2012
Brief History of Latency: Electric Telegraph
Brief History of Latency: Electric Telegraph
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- published: 15 Sep 2012
- views: 1440
2:11
Western Electric Telegraph Sounder. .
A short video of my Telegraph Sounder and Key set up. The sounder was manufactured in the ...
published: 22 Mar 2011
Western Electric Telegraph Sounder. .
Western Electric Telegraph Sounder. .
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- published: 22 Mar 2011
- views: 22437
9:11
NHD- The Electric Telegraph
Aida & Cristina's project for National History Day on the electric telegraph during the Ci...
published: 16 Mar 2010
NHD- The Electric Telegraph
NHD- The Electric Telegraph
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- published: 16 Mar 2010
- views: 1366
2:23
A short introduction to Electrical Telegraph
A short introduction to Electronic telegraph.
Developers of Electrical Telegraph System: ...
published: 27 Sep 2013
A short introduction to Electrical Telegraph
A short introduction to Electrical Telegraph
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- published: 27 Sep 2013
- views: 5693
4:02
Electric Telegraph Commercial
Commercial featuring the electric telegraph. By Kaitlyn Kauffman and Jonathan Frank
published: 10 Feb 2014
Electric Telegraph Commercial
Electric Telegraph Commercial
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- published: 10 Feb 2014
- views: 511
8:04
Civil War History: The Telegraph (Electrical Telegraph)
In this video series filmed with the help of The American Civil War Association we cover d...
published: 27 Jan 2016
Civil War History: The Telegraph (Electrical Telegraph)
Civil War History: The Telegraph (Electrical Telegraph)
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- published: 27 Jan 2016
- views: 181
3:35
Needle Telegraph
The growth of the railways from 1825 onwards brought with it a need for a new form of comm...
published: 28 Feb 2008
Needle Telegraph
Needle Telegraph
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- published: 28 Feb 2008
- views: 9638
6:50
Samuel Morse and the Electrical Telegraph
For a history class.
published: 02 Apr 2015
Samuel Morse and the Electrical Telegraph
Samuel Morse and the Electrical Telegraph
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- published: 02 Apr 2015
- views: 16
2:30
Working of a Telegraph - Physics
TELEGRAPH
It is the first modern instrument used in sending messages to a distant place i...
published: 28 Aug 2012
Working of a Telegraph - Physics
Working of a Telegraph - Physics
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- published: 28 Aug 2012
- views: 41210
0:35
Signal Electric Telegraph Sounder
Quick test of a 20 ohm, Signal Electric Company, telegraph sounder. Seems to work just fin...
published: 14 Mar 2014
Signal Electric Telegraph Sounder
Signal Electric Telegraph Sounder
- Report rights infringement
- published: 14 Mar 2014
- views: 404
Brief History of Latency: Electric Telegraph...
Western Electric Telegraph Sounder. ....
NHD- The Electric Telegraph...
A short introduction to Electrical Telegraph...
Electric Telegraph Commercial...
Civil War History: The Telegraph (Electrical Teleg...
Needle Telegraph...
Samuel Morse and the Electrical Telegraph...
Working of a Telegraph - Physics...
Signal Electric Telegraph Sounder...
photo: AP / Charlie Neibergall
FBI Will Not Bring Criminal Charges Against Clinton For Personal Server Use
Edit WorldNews.com 05 Jul 2016
Presumptive Democratic presidential nominee Hillary Clinton will not face criminal charges for her use of a private email server while she served as U.S. secretary of state, agency Director James Comey said Tuesday. The decision not to file criminal charges was announced Tuesday following an year-long investigation, including a three-and-a-half hour interrogation of the candidate this past Saturday....
photo: AP / K.M. Chaudary
Saudi Officials ID Medina Suicide Bomber As Pakistani Resident
Edit WorldNews.com 05 Jul 2016
No group has yet claimed responsibility for the Medina attack or two other attacks in the kingdom on the same day — one near the U.S. Consulate in Jiddah and the other at a Shiite mosque in the east of the country. The bomber has been identified as 34-year-old Abdullah Qalzar Khan, an Interior Ministry statement said. He lived in the nearby Red Sea port city of Jiddah with “his wife and her parents.” The statement didn’t elaborate....
photo: AP / Petros Karadjias
EgyptAir crash: Recorder shows pilots 'battled fire'
Edit BBC News 05 Jul 2016
Pilots of the EgyptAir jet that crashed in the Mediterranean Sea in May battled to extinguish a fire, the cockpit voice recorder reportedly shows ... Recovered wreckage also showed signs of high temperature damage and soot on the jet's front section ... ....
photo: WN / Janice Sabnal
Philippine President Duterte Making Good On Plan To Purge 'Drug Dealers'
Edit WorldNews.com 05 Jul 2016
Philippine President Rodrigo Duterte has taken little time to live up to his nickname after less than a week in office, Newsweek reported Tuesday ... “Let us be crystal clear. the drug menace must stop,” said Olalia. “Yet the apparent serial summary executions of alleged street drug users or petty drug lords which appear sudden, too contrived and predictable must also stop. The two are not incompatible.”– WN.com, Jack Durschlag....
photo: Creative Commons / Gage Skidmore
WikiLeaks publishes more than 1,000 Hillary Clinton war emails
Edit The Independent 05 Jul 2016
Happy Independence Day. WikiLeaks, the anti-secrecy website, has released more than 1,000 emails from Hillary Clinton’s private email server pertaining to the Iraq War ... Read more....
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The Curse Of The Inability To Imagine
Edit National Public Radio 20 Jun 2016
i. Chris Price/Getty Images. Chris Price/Getty Images. On June 20, 1840, Samuel Morse received a patent for an early version of the electric telegraph. His ideas for transmitting and recording signals helped revolutionize long-distance communication ... Our long-distance signals travel through air ... A sophisticated toddler can navigate an iPhone, manipulating more bits of data than a telegraph operator encountered in a lifetime ... @TaniaLombrozo....
Ticket to Ride - Around the World on 49 Unusual Train Journeys by Tom Chesshyre
Edit Huffington Post 06 May 2016
One of my favourite truisms about rail travel is that the only way to guarantee you don't miss your train is to just miss the one directly before the one you actually wanted to catch. I like trains and certainly, when possible, prefer them to planes ... "Trains are wonderful" says one of his fellow Amtrak passengers in the USA ... I'm click-happy ... Old electricity and telegraph poles stand with twisted wooden fittings and wires hanging down....
Solar Storm Researchers Prepare for the 'Big One' with New Urgency (NJIT - New Jersey Institute of Technology)
Edit Public Technologies 05 Apr 2016
'Since the development of the electrical telegraph in the 1840s, space weather processes have affected the design, implementation and operation of many engineered systems, at first on Earth and now in space,' noted Lanzerotti, a panelist at the conference ... the form of underground electrical currents, and to calculate impacts on a variety of systems....
TV pioneer's Emmy award arrives in Scotland
Edit BBC News 04 Feb 2016
An Emmy awarded to a Scottish inventor almost 140 years after his death has arrived in East Dunbartonshire. Alexander Bain was given the honour for his pioneering work in the transmission of images ... During his lifetime, Bain's achievements included the invention of the electric clock and important contributions to the electric telegraph, but he is perhaps best known as the inventor of the fax machine, which he patented in 1843 ... ....
Celebrating 178 Years Since the Beginnings of Long-Distance Communication (RELM Wireless Corporation)
Edit Public Technologies 07 Jan 2016
The telegraph, which would eventually revolutionize long-distance communication, is a device that uses electric impulses to transmit encoded messages by wire. Morse spent several years developing a prototype for the electric telegraph, which used an electromagnet to transmit Morse code messages, the first of which was sent from Washington DC to Baltimore....
Once New York Was The Center Of Technical Innovation
Edit Forbes 09 Dec 2015
By Elly Keinan, IBM Long before Silicon Valley took root on the West Coast, New York City was the epicenter of life-changing technical innovations, not the least of which included electricity, the telegraph, automatic punch card systems, satellites and high-speed computers. An exhibition at the New-York Historical Society (NYHS) brings that history [...] ... ....
Civil War Press Symposium is November 5-7 (The University of Tennessee at Chattanooga)
Edit Public Technologies 04 Nov 2015
(Source. The University of Tennessee at Chattanooga). The University of Tennessee at Chattanooga's twenty-third annual Symposium on the 19th Century Press, the Civil War, and Free Expression will be held Thursday, Friday, and Saturday, November 5-7 ... All paper sessions are free and open to the public ... The Electric Telegraph & the Evolution of Modern Journalism in the Charleston Mercury' by Simon Vodrey of Carleton University, 'Dennis A....
How the Computer Age Was Born in the 'Silicon City' of New York
Edit Huffington Post 20 Oct 2015
When you think of the New-York Historical Society, you may imagine exhibitions about the Founding Fathers, or programs about the Civil War ... We're proud of all of these exhibitions, programs and resources. But history doesn't end with the 19th century ... Morse and Alfred Vail develop the electric telegraph (based in part on research conducted at New York University), creating the world's first electronic digital communications network ... ....
Plaque for Atlantic telegraph pioneer Sir Daniel Gooch
Edit BBC News 15 Oct 2015
The pioneer who coordinated the connection of the United States and Great Britain by electric telegraph is to be commemorated with a blue plaque....
Blue plaque for deep-blue cable man
Edit BBC News 15 Oct 2015
The pioneer who coordinated the connection of the United States and Great Britain by electric telegraph is commemorated with a blue plaque ... ....
How the Great Exhibition of 1851 still influences science today
Edit The Guardian 28 Aug 2015
Six million people visited the Crystal Palace to see cutting-edge science and technology. The vast profits generated continue to pay for innovations today ... Visitors to the Crystal Palace, a marvel in its own right, were treated to demonstrations of cutting-edge technology of the day, including electric telegraphs, microscopes, a prototype facsimile machine, a revolving lighthouse light and an early submarine ... Related. 7 May 1851 ... ....
How To Protect Planes And Passengers From Explosions On The Surface Of The Sun
Edit IFL Science 17 Aug 2015
Air travel today is extraordinarily safe. Despite the high profile downings of MH370 and MH17, aviation magazine found 2014 to be the safest ever year of air travel. But natural events, such as the Icelandic volcanic eruption and ash cloud in 2011, can sometimes pose questions for air safety ... It occurred before air travel existed, but still damaged electrical and telegraph equipment on the ground ... Solar Fireworks ... , CC BY-SA ... ....
The world's first hack: the telegraph and the invention of privacy
Edit The Guardian 15 Jul 2015
But he was travelling along one of the only stretches of railway in the world to have telegraph wires running beside the railway lines ... The Times reported that, “Had it not been for the efficient aid of the electric telegraph, both at Slough and Paddington, the greatest difficulty, as well as delay, would have occurred in the apprehension.” ... The telegraph and privacy ... Electrical telegraph lines could be tapped, signals intercepted....
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