Inquiry Unit
Information Theory
One of the traits that makes humans unique from other animals is our consciousness, the fact that we can remember concrete ideas, both actual memories and abstract thoughts. These brain activities are…
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A Mathematical Theory of Communication
Information Theory Unit
Parts I & II By C.E. Shannon Bell Telephone Laboratories, Inc. With this paper, Claude Shannon provided the theoretical foundation for communication engineering. It describes how inform…
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Quipu
Information Theory Unit
Quipus, or Khipus, were used by civilizations of the Andes, such as the Incas and were a means of recording information. The lengths of the chords, colors, and knots were used to record numeri…
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Claude Shannon
Information Theory Unit
Often noted as "the father of information theory". "The American mathematician and computer scientist who conceived and laid the foundations for information theory. His theories laid the ground…
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Samuel Morse, American Electro-Magnet Telegraph Patent and Morse Code
Information Theory 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…
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Error-Detecting and Correcting System (Patent)
Information Theory 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…
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Hands-on Activity
Make a Hand Drum
Electronic Music Inquiry Unit
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…
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Edwin H. Armstrong, of Paris, France Method of Receiving High-Frequency Oscillations Patent # 1,342,885 Application filed Feb. 8, 1919 – Patented June 8, 1920
Radio Inquiry Unit
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…
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Edwin H. Armstrong, of Yonkers, NY Wireless Receiving System, Patent # 1,113,149. Application Filed Oct. 29, 1913 – Patented Oct. 6, 1914
Radio Inquiry Unit
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…
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Laboratory notebook, recording Edwin H. Armstrong’s discovery of superheterodyne reception
Radio Inquiry Unit
Radio Inquiry Unit From the Rare Book & Manuscript Library, Columbia University Visit Source Download PDF …
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