- •Our College
- •Vocabulary
- •Vocabulary
- •Exercises
- •Scientific and Technological Progress
- •Vocabulary
- •Level II
- •Vocabulary
- •Level II
- •Level IV
- •Radio in Our Life
- •Vocabulary
- •Communications
- •Vocabulary
- •Exercises level II
- •Level III
- •Level IV
- •Beltelecom
- •Vocabulary
- •Exercises level II
- •Level III
- •Level IV
- •Telegraph
- •From the history of telegraph
- •Vocabulary
- •Exercises level II
- •Level III
- •Level IV
- •Telephone
- •Vocabulary
- •Exercises level II
- •Level III
- •Level IV
- •Vocabulary
- •Vocabulary
- •Exercises level II
- •Level III
- •Level IV
- •The Internet
- •Vocabulary
- •Exercises level II
- •Level III
- •Level IV
- •Television In Our Life
- •Vocabulary
- •Level III
- •Level IV
- •Level V
- •At the Post-Office
- •Vocabulary
- •Level II
- •Level III
- •Level IV
- •Ecological Problems
- •Vocabulary
From the history of telegraph
The first teleprinter in the world was developed by an outstanding Russian scientist Jacoby in 1850. It was he who invented the first relay telegraph transmission set. Six years later a teleprinter with the transmitting speed of about 120-180 symbols a minute was constructed.
In 1856 our countryman Slonimsky invented the method of simultaneous opposing transmission of several messages through one wire, which is called the duplex method.
In 1874 Baudot (France) constructed a teleprinter, which permitted to conduct simultaneously several gearings through one wire. But this device was very complicated and huge. The necessity to modernize the teleprinter resulted in the creation of a new class of equipment, known "start-stop" teleprinters.
Benjamin Franklin, an American who is famous for his interesting and useful inventions, published his ideas about electricity in 1752. Scientists in many countries became interested in this wonderful form of energy. They wanted to find the answer to a very important question: could electricity be used to develop a fast efficient system of long distance communication? Experiments proved that electricity could travel instantly over very long piece of wire. But a note that was written on a piece of paper couldn't be put into a wire! How could electricity be used to send a message?
A Danish scientist discovered that electricity could move a needle from left to right, and that the needle could paint letters on a piece of paper. Then a German government worker made up a code system that could be used with an electric needle. In 1837 the English scientist sent a message at a distance of more than 1.6 kilometres.
Many attempts had been made by scientists of different countries before the first transatlantic message was sent from Newfoundland to Ireland. It happened on July 27, 1866.
Vocabulary
Integrate – составлять целое Ensure – обеспечивать, страховать Handy – удобный Expense – издержки, расходы Promotion – продвижение, содействие
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Elaboration – разработка в деталях Compatriot – соотечественник Countryman – соотечественник Oppose – противопоставлять Duplex – двойной, двухсторонний Gearing – передача |
Exercises level II
Translate the following word combinations into English and make up sentences with them.
-на дне Атлантического океана
-волнистые линии
-экспериментальная телеграфная связь
-самые современные технологии
Level III
Complete tag-questions.
Telegraph constantly expands the range of its services and improves their quality, ….
The history of telegraph reflects the history of telecommunication, …
Then Morse invented a code that used dots and dashes for the letters of the alphabet, …
Telegraph companies were formed in many cities, …
England and the United States contributed money for this experiment, …