Physics: Principles and Problems

Chapter 20: Static Electricity

Web Links


The Discovery of the Electron
Browse through this presentation of the history of the electron, including a biography of J. J. Thomson and a *.wav file of Thomson discussing his discovery. Why was Thomson's suggestion that cathode rays were made up of pieces of atoms so startling?
( http://www.aip.org/history/electron )
Franklin's Kite
Professional scientists recreate Franklin's proposed "kite experiment." Be sure to watch the video of the experiment. Why is St. Elmo's fire actually not a good omen, but a warning of danger?
( http://www.mos.org/sln/toe/kite.html )
How Does a Photocopier Work?
Visit this site for a simple description and more modern explanation of how a copier works. How does this relate to how laser printers work, as described in the How It Works for Chapter 20?
( http://www.physics.uoguelph.ca/summer/scor/articles/scor54.htm )
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