What came first - telephone or fax? Detailed answer

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What came first - telephone or fax? Detailed answer

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What came first - telephone or fax?

The fax came before the telephone. The prototype of the fax machine was invented as early as 1843, and in 1865 the Italian Giovanni Caselli's device began to be commercially used on lines in France and between Moscow and St. Petersburg. In this apparatus, called a pantelegraph, the image for transmission had to be applied with a special insulating varnish on lead foil. However, this technology was not successful and gave way to other methods of communication. The mass development of facsimile communication became possible in the 20th century due to the emergence of more accessible channels - first telegraph, and then telephone and radio.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who wrote the first opera?

Do you like TV westerns? They are popular with many. But can you imagine someone being enamored with the same western year after year for decades?

However, there is one kind of art that people enjoy in this way. This is opera. Perhaps opera is so popular because it is pleasing to both the ear and the eye. An opera is a play in which the parts are sung rather than recited.

The main parts are performed by soloists, but there is also a choir. The orchestra plays independently at the beginning of the opera and before each new act. He accompanies the singers and the action of the opera. The music played before the start of an opera is called an overture or prelude.

There are two types of solo parts in the opera. The aria is like a long song. Recitative sounds like recitation to music. The complete content of an opera is called a libretto. The score is the music for the opera, recorded in its entirety. Many operas have added ballet.

The year 1600 is considered to be the beginning of the opera. This year, the Italian composer Zhdakopo Peri wrote the opera "Eurydice", which was performed at the wedding of the French King Henry IV. From this we can conclude that opera has been a popular form of entertainment for four hundred years.

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Smart parking based on LTE networks 09.12.2015

LG Uplus, the third largest South Korean mobile operator, announced the creation of a parking zone monitoring system based on LTE technology.

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LG Uplus says narrow-band LTE networks have low latency and support the connection of a large number of low-cost industrial IoT devices. First, developers are going to test this technology on a smart parking system, which will soon be deployed in the Seoul laboratory of LG Uplus, which is developing fifth generation networks (5G). Then the novelty is planned to be introduced into electricity consumption metering units, various security systems, etc.

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