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MY IDEA ABOUT RADIOS

MY IDEA ABOUT RADIOS. Where they came from?, who invented it? what was there purpose ? who can access . Inventors of the radio. Guglielmo Marconi one of the major contributors to the invention of the radio . In 1895 he witnessed the first signal sent. In 1899 the signal was received.

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MY IDEA ABOUT RADIOS

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  1. MY IDEA ABOUT RADIOS • Where they came from?, • who invented it? • what was there purpose ? • who can access

  2. Inventors of the radio • Guglielmo Marconi one of the major contributors to the invention of the radio . In 1895 he witnessed the first signal sent. In 1899 the signal was received. • Nikola teisa he dressed the fundamental design for the radio . • Alexander Popov invented the first radio receiver in 1894. • Alexander modified it in 1895.

  3. More radio inventors • Sir Oliver lodge designed the radio wave detector . • Amos Dulbar invented the wireless telegraph in 1882. • In 1868 Mahlon demonstrated the wireless telegraph. • Heinrich Hertz proved the electro magnet waves that was used to detect radio waves in 1933.

  4. How radios changed over time • this picture was taken between 1895-1933.

  5. What's the purpose of the radio?? The original purpose of the radio was “COMMUNICATION”. Some people say it was for entertainment at parties.

  6. Why I chose “The Radio” • I chose this topic because radios are very resourceful. Radios have helped relay messages to me and billions of others. I always know when there's a concert, play ,and or new movie.

  7. Areas of interactions • The areas of interaction that would be addressed by my work on this topic would be “community and service”. The radio is very dependable. They relay important messages to the community. • AND ITS FREE!!!!!!!!!!!!

  8. How Radios changed over time 1933 1960 1980 1970 2004-2007 2000-2003 2008-210

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