TIMELINE

RADIOHEAD

Although the title, “inventor of radio” is popularly attributed to Guglielmo Marconi, his was just the practical application of years of scientific advancement in the field. What initially started as a purely scientific experiment is now a source of entertainment and much advertisement by politicians (if you live in Delhi, you know exactly what I am talking about)! Let’s trace the journey of this marvelous discovery.

1831: Michael Faraday discovers electromagnetic induction.

1864: James Maxwell predicts the existence of electromagnetic waves

1875: Thomas Edison, proves the existence of a form of communication that may be built using electromagnetic waves.

1885: Edison takes out a patent on a system of wireless communication between ships via electrostatic induction through sea water. However, the system proves to be too short range to be practical.

1886 – 1888: Heinrich Hertz conducts a series of experiments that validate Maxwell’s theory and prove that electromagnetic waves can travel through free space (radio).

1895: Marconi pursues the idea of building a wireless telegraphy system using Hertzman waves (radio).This is considered to be the first development of a radio system specifically for communication.

1896: Marconi is awarded a patent for radio.

1897: Marconi establishes the first radio station on the Isle of Wight, England. Simultaneously, the US also begins to develop its radio technology.

1898: Marconi opens the first radio factory, in England, employing around 50 people.

1900: Reginald Fessenden makes the first transmission of voice over the airwaves.

1906: In Australia, Sir Ernest of AWA – Amalgamated Wireless (Australasia), conducts an isolated experiment in which music is broadcast.

1916: First regular broadcasts on 9XM begin.

1923: Broadcasting begins in British India with programmes by the Radio Club of Bombay.

1927: The British government in India sets up two radio stations, in Calcutta and Bombay respectively. Post their liquidation, the Indian State Broadcasting Service (ISBS) is established (1930).

1933: FM radio is patented by Edwin Armstrong.

1936: ISBS is renamed as All India Radio.

1960: Sony introduces their first transistorized radio.

1985 onwards: Under PM Rajiv Gandhi, radio became a household item, as did many other electronic items.

2000 – 2016: Radio has spread to all parts of the country and the world, though its popularity now resides in the car than our homes. Channels like Radio Mirchi and Red FM are known names, Rjs like Ranauk, Swati and Rocky are known figures.

Thus the Radio has evolved from a few speculated waves to our greatest source of entertainment during the never-ending city jams.

Kunalika Gautam

Student Reporter

August 2o16