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Development and Transformation of Social Structures

Home > Topics > Development and Transformation of Social Structures

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New Music for an Old World

Primary Source

New Music for an Old World

Electronic Music Inquiry Unit

The article was written in 1906 and highlights the unique and extraordinary aspects of the Dynamophone (also called the Telharmonium) from the authors perspective. Numerous photos are in…

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Light Through The Ages

Primary Source

Light Through The Ages

Electric Lighting Inquiry Unit

Promotional literature for the Westinghouse Electric Co. Download PDF Visit Source…

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Inventor Lewis Latimer Biography and Patent

Primary Source

Inventor Lewis Latimer Biography and Patent

Electric Lighting Inquiry Unit

Lewis Howard Latimer (1848-1928)...attended only grade school, and the remainder of his education was self-taught...He had a fabulous appetite for reading, drawing, and learning in general. In 1880, H…

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Portrait of Hertha Marks Ayrton

Primary Source

Portrait of Hertha Marks Ayrton

Electric Lighting Inquiry Unit

Hertha Marks Ayrton was a British engineer, mathematician, physicist and inventor. She was the first woman elected member of The Institution of Electrical Engineers (London) 1899, the first woman to r…

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A Pre-History of Radio (Part One)

Multimedia

A Pre-History of Radio (Part One)

Radio Inquiry Unit

Join historian Alex Magoun on a journey through the history of radio technology from James Clark Maxwell’s theory of electromagnetism to Guglielmo Marconi's use of that theory in long-distance radio…

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A Pre-History of Radio (Part Two)

Multimedia

A Pre-History of Radio (Part Two)

Radio Inquiry Unit

Continue on the historical journey of the radio industry with historian Alex Magoun as he goes back in time and shares how engineers and scientists improved wireless telegraphy from Morse code to the …

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1920’s Frequency “Tune-In” and In-Home Entertainment

Multimedia

1920’s Frequency “Tune-In” and In-Home Entertainment

Radio Inquiry Unit

Listen in as radio expert Al Klase of the New Jersey Antique Radio Club explains the effects radio had on society and culture in the 1920s and watch as he demonstrates and tunes in a station on an aut…

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President Franklin Roosevelt’s Fireside Chats

Primary Source

President Franklin Roosevelt’s Fireside Chats

Radio Inquiry Unit

Radio Inquiry Unit - Supporting Question 4 Photo: FDR [Franklin Delano Roosevelt] FIRESIDE CHAT https://www.loc.gov/item/2016883684/ Accessed: 12 June 2017 “While developing programs to help…

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David Sarnoff Diary Entry, 3/26/1911

Primary Source

David Sarnoff Diary Entry, 3/26/1911

Radio Inquiry Unit

Radio Inquiry Unit - Supporting Question 2C "Page from David Sarnoff’s diary on board the Job Brothers’ sealhunting ship, the Beothic, in which he describes his relaying the dialogue between th…

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Biography of David Sarnoff

Primary Source

Biography of David Sarnoff

Radio Inquiry Unit

IEEE Biography of David Sarnoff Radio Inquiry Unit "Sarnoff was born on 27 February 1891, the oldest of five children, outside Minsk in imperial Russia. He and his family immigrated to the Unite…

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