Primary Source
Information Theory Inquiry Unit
Samuel Finley Breese Morse, an accomplished painter and inventor, was convinced of the possibility of transmitting words using electricity and wires. In 1840 he patented "Improvement in the Mode o…
Learn more
Primary Source
Information Theory Inquiry Unit
Richard W. Hamming, Morristown, and Bernard D. Holbrook, Madison, N.J., assignors to Bell Telephone Laboratories, Incorporated, New York, N.Y., a corporation of New York Application January 11, 19…
Learn more
Hands-on Activity
This hands-on activity shows how to make a hand drum that creates percussion sounds. Materials Mini Glue Gun and Glue Stick Hole Punch Drawing Compass Thread or Yarn (Waxed thread wor…
Learn more
Primary Source
Radio Inquiry Unit While serving in the U.S. Army during World War I, Armstrong synthesized three ideas to create his superheterodyne circuit for selectively amplifying a very high fr…
Learn more
Primary Source
Radio Inquiry Unit According to the E.H. Armstrong, wireless receiving system patent, “The present invention relates to improvements in the arrangement and connections o…
Learn more
Primary Source
Radio Inquiry Unit From the Rare Book & Manuscript Library, Columbia University Visit Source Download PDF …
Learn more
Inquiry Unit
Chances are good that you and your friends don’t get your music in the same way that your parents did. Their generation was much more likely to hear a new song on the radio and go out to Sam Goody's…
Learn more
Primary Source
The Telharmonium - An Apparatus for the Electrical Generation and Transmission of Music In 1895 Thaddeus Cahill submitted his first patent for the Telharmonium “The Art of and Apparatus for Gener…
Learn more
Primary Source
This document includes historical insight on Edison’s Tinfoil Phonograph, including presenting it to President Rutherford B. Hayes, as well as a demonstration to live audience. Visit Source 1 Vi…
Learn more
Primary Source
This document includes a permanent record of vinyl recordings mentioned in the IEEE REACH Electronic Music Inquiry Unit made available via Discogs.com. Discogs does not require a login and provides…
Learn more