One of the great technical achievements that revolutionized the idea of time and space, opening a new era in the history of communication, is telegraphy. It is based on the transmission of electrical signals through a cable over long distances, allowing people to communicate instantly. The telegraph spread very quickly and a network of wires stretched around the world.
In 1837, the American painter and physicist Samuel Morse invented the first electromagnetic device for telegraphy, patented in 1840. To send messages by wire, Morse developed in 1838 a simple code of dots and dashes, which represented the letters of the alphabet, known as "Morse code ".
Both Morse code and the telegraph machine were improved over time, with the telegraph becoming the most widespread system of communication and information transmission for more than a century, until the advent of the Internet. The telegraph system consisted of a series of stations repeaters along the transmission line route. Each station had an operator who received and transmitted messages by telegraph. The Morse machine transmitted about 25 words per minute, which were recorded in code on a paper tape. The operator in charge of transmitting the message would decode it and write it on paper using a special typewriter.
In Bessarabia, the telegraph entered in 1860: on April 8, the Bender telegraph station began its activity, and on April 24, the one in Chisinau, following the construction of the first Odesa-Chisinau-Leova telegraph line. Currently, telegraph services have been discontinued. The only ones who still use coded communication are radio amateurs.
The Morse telegraph machine shown comes from the Osinoostrovsky electrotechnical plant, Soviet Union, and dates back to 1934. The exhibit was restored by Mihail Culașco.
Unpublished and rare coins of the Golden Horde from the site of Nizhny Dzhulat (North Caucasus)
Tyragetia, serie nouă, vol. VII [XXII], nr. 1, Arheologie. Istorie Antică
The ancient settlement of Nizhny Dzhulat is located on the right bank of the Terek River near the town of Maysky in Kabardino-Balkaria. A large amount of the Golden Horde coins was found there by locals during agricultural work. The authors obtained electronic images of coins found in 2010-2012. In this paper they summarize the results of the study of copper coins from the Nizhny Dzhulat complex.
Based on the dated coins, the chronology of copper coins covers 100-year period from 1420s to 1520s. In the complex there are many rare and unpublished types and variants for coins, 16 of which are described in the article. Copper coinage of Djanibek II presents two new types and ten new variants. There were considered seven types of Haji-Tarkhan coins, including the unreleased dated type of "Animals at the trough" of 805 AH. Horde minted al- Jadid's coins are presented here with two types of animalistic symbolism and with a review of the unreleased coin with tamga "glasses" of Emir Ibrahim al-Jadid's coinage of 777 AH.
List of illustrations:
Fig. 1. Reconstruction of registered copper coins of Djanibek II: 1, 2 - tamga "Fish"; 3 - without tamga; 4, 5 - with an animal on the reverse.
One of the great technical achievements that revolutionized the idea of time and space, opening a new era in the history of communication, is telegraphy. It is based on the transmission of electrical signals through a cable over long distances, allowing people to communicate instantly...
The National Museum of History of Moldova takes place among the most significant museum institutions of the Republic of Moldova, in terms of both its collection and scientific reputation.
The National Museum of History of Moldova takes place among the most significant museum institutions of the Republic of Moldova, in terms of both its collection and scientific reputation.
The National Museum of History of Moldova takes place among the most significant museum institutions of the Republic of Moldova, in terms of both its collection and scientific reputation.
31 August 1989 St., 121 A, MD 2012, Chisinau, Republic of Moldova
