yeisson fabian granada landinez

l spirit of man research led him to discover, generate and use waves that are not perceived by our ears, upper frequency to 20kHz.

Many were previously discovered items that were used to give rise to broadcasting.

The signaling systems across threads, System Morse telegraphy by wire and optical signals were known in the nineteenth century.

When achieved using wireless telegraphy (with input from Faraday - discovery of electrical propagation fields in 1837 - and Joseph Harry - discoverer of oscillating electric shock, in 1842), and the discovery of radio waves, gives a huge boost to the advancement of communication waves in the ether.

The discovery of the waves is mainly due to the investigations of Maxwell and Hertz.

Heinrich Hertz Rudolph unable to detect and measure electromagnetic waves and an electromagnetic field created in 1888, which is able to measure the wavelength, and its transmission and reception feature. For him, the unit of measurement called Hertz.

Produces electromagnetic waves generated by jumping a high voltage spark between two electrodes, and shown to possess the properties of light.

Scottish physicist Maxwell in 1865 discovered that electrical oscillations of very high frequencies propagate through space at speeds of 300,000 kms. per second or so, because the light is not simply the visible manifestation of an electromagnetic wave.

In 1891, Branley Coherer invented, which is a system that achieves choose and determine which frequency waves are to be received and which are not. In 1894, Lodge perfect wave tuning. The following year, in 1895, Alexander Popoff creates a receiving antenna to extend the field.

With these elements, Guglielmo Marconi (1874-1937 - Italian physicist and inventor born on April 25, 1874 in Bologna) invents the wireless telegraph transmission by radio waves.

In 1895 he was able to send signals to several kilometers away, by air, using a directional antenna. Later succeeds in conveying distances, the human voice and music.

Following that Italy did not get much interest in his invention, Marconi introduced him in England, where he patented as "system of wireless telegraphy." And then there created the "Wireless Telegraph and Signal Company, Ltd.", which in 1900 was renamed "Marconi's Wireless Telegraph Company, Ltd".

With testing and improvements introduced in its transmitter and receiver of radio signal