The Invention of The Radio By: Caira Searles & Nicole Cummings
Intro • As music is now a big part of everyday life most people are very grateful for the invention of the radio. Take a second and imagine what life would be like without radios. Would we have ipods,CDs,cassette tapes, or mp3 players? How would we take our music with us. Without the radio we would be affected greatly
Who Invented the Radio • Several people were involved in creating the radio. • Between 1861 and 1865, James Clerk Maxwell developed the theory of electric magnetism. Electric Magnetism predicted the existence of electromagnetic waves. This includes radio waves. Maxwell developed a series of equations entitled Maxwell’s Equations. The equations he came up with remain the basis of radio design. • Between 1838 and 1842, Joseph Henry was the first to produce high frequency electrical oscillations. • All of this adds up the the first audio transmission was made by Reginald A. Fessenden . • Soon after, Guglielmo Marconi creates the very first radio transmission.
What the Radio was Used For • The radio was first used with the Morris code to send messages from ships to land. • It was later used for entertainment purposes • It was mostly for a new way to receive information easily. • The news and other important events were broadcasted through the radio.
Unintended Affects • More technology was created • Education became better • More jobs were created • Promoted the film industry • Helped in wartime • Defending the county became easier • Laws changed
The First Radio • This is a picture of Guglielmo Marconi using the very first radio.
Quiz • Who was the main person that invented the radio? • When was the radio invented? • What was one use for the radio? • What was one unintended use for the radio?
Reliable Websites • www.greatachievements.org • www.inventors.about.com