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Hands-on Activity
Electric Lighting Inquiry Unit
Make Electricity From Scratch With a Simple Electric Generator Kit A 16-year-old high school student has created, simple to make, electric generator kits as a class project. They are available for pu…
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Primary Source
On 25 October 1906 Lee de Forest submitted a patent application on a "Device for amplifying feeble electrical currents", which included the first form of the 3-electrode Audion. The device and…
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Information Theory Inquiry Unit
Sometime around 2,800 years ago, the Phoenicians made a major invention—the vowel! That is, they realized that instead of each symbol representing a syllable (ba, be, bi, bo, bu, ca, ce, ci, co, cu,…
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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…
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Hands-on Activity
Information Theory Inquiry Unit
Information Theory Unit Cuneiform was one of the first writing systems, developed 5,000 years ago in Mesopotamia to record information on clay tablets. By asking students to record current …
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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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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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Radio Inquiry Unit From the Rare Book & Manuscript Library, Columbia University Visit Source Download PDF …
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Hands-on Activity
Skyscrapers Inquiry Unit Download PDF Skyscrapers Hands-On Activity Prompt for the students: Using only the materials provided, teams of students will design and build a structure as tall as p…
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Hands-on Activity
Electric Lighting Inquiry Unit
See video demonstration here: How to Make a Light Bulb with Cardboard and Pencil Lead Materials Safety Glasses Glass Jar Cardboard paper towel tube, or toilet paper tube Either 2 long w…
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