MY PRESENTATION_History of Radio

a traditional social medium

English presentation

Rita Henriques - Nº 30 10º E

Escola Secundária Crsitina Torres

History of Radio

Is that true that Millennials prefer streaming a lot more than radio?

• Defining radio
• Broadcasting
• History of the Radio
• Timeline
• Aplications
• Learn More

Introduction

Radio is a way to send electromagnetic signals over a long distance, to deliver information from one place to another using technology. When radio signals are sent out to many receivers at the same time, it is called a broadcast.

Defining radio

Broadcasting is a one-way transmission of information from a radio transmitter to receivers belonging to a public audience. That's why England has BBC (British Broadcasting Corporation). But it can be a two-way transmission like in mobile phones

Broadcasting

The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Like magic, radio waves are signals that travel through the air in a straight line leading information.Now its history goes along with internet.

History

First radio broadcasting transmission

1906

GIACOMO MARCONI Developed the Telegraph

1896

HEINRICH HERZGerman_ Discovered radio waves

1880

MICHAEL FARADAY electromagnetic rotation

1821

JAMES CLERK MAXWELL Discovered eletromagnestism

1860

1821-1906

History of The Radio Timeline

Various frequencies of radio waves are used for:

• Television, FM, AM radio broadcasts;
• Military communications. E.g. 25 de Abril Revolution;
• Police an fire brigades;
• Mobile phones;
• Communication satellites;
• Ham radio; wireless computer networks;
• Numerous other communications applications;

Applications

Encyclopedia britannica

Conclusions

So, do we, Millennials, prefer streaming a lot more than radio? Maybe...maybe not!...

Learn more at:

https://study.com/academy/lesson/history-of-the-radio.html

Thank you

Thank you

Michael Faraday (born September 22, 1791, Newington, Surrey, England—died August 25, 1867, Hampton Court, Surrey) English physicist and chemist whose many experiments contributed greatly to the understanding of electromagnetism.Read more: https://www.britannica.com/biography/Michael-Faraday

MICHAEL FARADAY BIOGRAPHY

Wow!

THeinrich Hertz (born February 22, 1857, Hamburg [Germany]—died January 1, 1894, Bonn, Germany) was a German physicist who showed that Scottish physicist James Clerk Maxwell’s theory of electromagnetism was correct and that light and heat are electromagnetic radiations.Read more:https://www.britannica.com/biography/Heinrich-Hertz

Heinrich Hertz

Guglielmo Marconi (born April 25, 1874, Bologna, Italy—died July 20, 1937, Rome) Italian physicist and inventor of a successful wireless telegraph, or radio (1896). In 1909 he received the Nobel Prize for Physics, which he shared with German physicist Ferdinand Braun. He later worked on the development of shortwave wireless communication, which constitutes the basis of nearly all modern long-distance radio.Read more: https://www.britannica.com/biography/Guglielmo-Marconi

Giacomo Marconi

James Clerk Maxwell (born June 13, 1831, Edinburgh, Scotland—died November 5, 1879, Cambridge, Cambridgeshire, England) Scottish physicist best known for his formulation of electromagnetic theory. Read more:https://www.britannica.com/biography/James-Clerk-Maxwell

James Clerk Maxwell

The first radio broadcast ever in the world's history was made by Reginald Fessenden on Christmas Eve 1906 when he beamed a "Christmas concert" to the astonished crews of the ships of the United Fruit Company out in the Atlantic Ocean and the Caribbean Sea. Radio comunications were very important at WW I. Read more:https://www.britannica.com/technology/broadcasting

First Radio Broadcasting