SCEN103 Computer Lab SCEN103 Class 18

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The Internet Challenge: Phase I

You may use whatever resources are at your disposal to find answers to the following questions. Here are the SCEN103 Search Tools. Attempt to confirm your answer by relying on at least two independent websites where possible. Also, please evaluate carefully the websites that you use.

Prepare to report your solutions using a format similar to that shown in my examples in the next class page.

  1. When was Ohm's law discovered? Where did Prof. Ohm work when it was first published? Who else became a Fellow in the Royal Society of London the same year as Prof. Ohm?

  2. The base 10 number system is known as decimal. What is the base 20 number system called? What group of people are noted for using it? Write 1999 using their symbols.

  3. Who pioneered work on the lithium battery? When? When was the lithium ion battery commercialized and by which company? Where would one go in the U.S. to "harvest" lithium?

  4. Select a state of the U.S. and find its energy consumption. What fraction of the worl's consumption is this? What fraction of the world's population does this state have?

  5. Who filed for the first U.S. patent for a handheld calculator? When? I bought a Commodore scientific calculator in my sophomore year of college (for $129 I think). What model was it?

  6. Of what material is the filament of an incandescent lamp made? What is its melting temperature? Why is halogen added?


Comments, suggestions, or requests to ghw@udel.edu.
"http://www.physics.udel.edu/~watson/scen103/99s/clas0322.html"
Last updated March 19, 1999.
Copyright George Watson, Univ. of Delaware, 1999.