When did television appear

In this article by a PROFESSOR we are going to talk about a device that revolutionized the media: television. Watching television today is, for a large part of the population, one of the joys of life. It is a means of communication that opens the doors to many entertainments, whether it is enjoying a movie with your friends or finding out about the most relevant news of the day.

Television is one of the most recent mass media that, thanks to a complex technological framework - of which more on that later - allows an event to be viewed anywhere in the world at the same time it is produces. As the history of television is a bit complex, in this article we will focus on a key question for the development of the topic: When did television appear?

Index

1. World Television History - Summary
2. Origins of television
3. Evolution of television
4. Television today

To know when television appeared, it is important that you bear in mind that it is a

We find the beginnings of television with the first technical discoveries that made possible the remote transmission of the moving image. Among these discoveries stands out the selenium, a material that without it the invention of television would not have been possible.

The various technological advances that allowed the creation of television that we talked about in the introduction are:

• The photoelectricity: ability of some bodies to transform light energy
• Analysis processes for decomposition of a photograph in points and points to restore it later in its original form
• Innovations in the handling of electron beams that repeat the above process 25 times per second

Image: PCWorld Mexico

When was television born? The birth of television It is not an isolated incident. It is due to the work of a group of scientists who contributed to the research of the photo telegraphy. Specifically, with the invention of Nipkow disk Paul Nipkow's breakthrough was made for the creation of television. Nipkow, in 1883, succeeded with the flat disk to divide an image into a collection of points and lines.

Next, the invention of the Nipkow disk comes from the hand of Vladimir Zvorykin and Philo Tylor Fransworth with the invention of iconoscope. With this, the creation of an electronic television with greater definition of the image and its own lighting was achieved.

The first transmissions were born in 1928 in the United States, Washington, where 48-line definition film images were transmitted from experimental station W3XK.

Image: Slideplayer

Now that you know when television appeared, let's talk about the evolution of this Great invention of the society. Since the end of the 19th century, with the first steps towards the creation of television, this invention has undergone profound developments in the field of physics. Next, we are going to name the most important evolutions television has been through:

Tube television

After the first broadcasts carried out in the United States, new technological adaptations would arrive with the use of lead and phosphor coated glass screens on which electrons impacted traveling through a vacuum tube. This invention received the name of tube of cathode raysand it would be implanted on television from 1940.

Color television

A few years later, in 1940, tube televisions would be perfected with the color image thanks to the Mexican Guillermo gonzalez camarena, who opted for a sequential trichromatic system of fields. The definitive change would take place in 1960 with the transition from black and white to color television.

Plasma screen television

The older television will be displaced by lighter televisions with thin plasma and liquid crystal displays. They have small cells that are located between two panes of glass filled with a mixture of noble gases.

Image: Slideplayer

Continuing with the previous point, the television that we are currently encountering is television SMART TV, also called smart TV. These televisions can be connected to the computer or to the WIFI, with the possibility of downloading and installing an endless number of applications with multiple utilities.

As of 2012, the most popular televisions are 3D and touch with motion sensors. Today, television is still the leader in the media sector, although the Internet can be a good direct competitor.

Television has become one of the most important elements for showing new social, cultural and scientific perspectives. This process that television has undergone throughout history shows us that it has become a very important medium for society and its convergence towards other related media.

Finally, as a curious fact we would like to name World TV Day: November 21 the date on which the first World Television Forum took place in 1996 at the United Nations is commemorated.

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