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  • Frits Westra
    Forwarded by: fwestra@hetnet.nl (Frits Westra) Originally from: Internet Scout Project Original Subject: The NSDL Scout Report for the
    Message 1 of 1 , Oct 6 12:40 PM
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      Forwarded by: fwestra@... (Frits Westra)
      Originally from: Internet Scout Project <scout@...>
      Original Subject: The NSDL Scout Report for the Physical Sciences -- October 4, 2002
      Original Date: Fri, 4 Oct 2002 15:19:16 -0500 (CDT)

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      Speed of Light

      1. Everyday Physics: What is the Speed of Light?
      2. The Light Stuff
      3. Speed of Light
      4. Usenet Physics FAQ
      5. Speed of Light
      6. Relativity Calculator
      7. Lesson Plan: Speed of Light
      8. Tour: Discover Light's Mysteries

      The first site offered by What Why Web is entitled Everyday Physics: What is
      the Speed of Light? (1) The one page site describes the definition of the
      speed of light, how it changes passing through various medium, its
      historical significance, and what symbol is used for the speed of light in a
      vacuum. The next site from the NOVA online Einstein Revealed Web site is
      called The Light Stuff (2). Visitors can compare the time it would take to
      travel at the speed of light to various places, find objects in "Joe's Room"
      that slow down light, and try the Time Traveler Game which shows how time
      changes if you could travel very quickly. The third Web site, Speed of Light
      (3) offers a historical timeline of measuring the speed of light and various
      quizzes geared to students. Next, from the University of California at
      Riverside Department of Mathematics comes the Usenet Physics FAQ (4) Web
      site. Under the Relativity and Cosmology heading are several speed of light
      topics including: is the speed of light constant, why is it so high, is
      there an equivalent of the sonic boom for light, and more. The fifth site,
      which is maintained by the University of Colorado at Boulder is entitled
      Speed of Light (5), and has a unique interactive feature. Users can vary an
      electromagnetic wavelength, which travels at the speed of light, to
      calculate the distance it travels and time it takes to return to its
      original location. The 1728 Software Systems Web site, Relativity Calculator
      (6), offers a similar conversion applet which shows the changes that occur
      when objects approach the speed of light. After reading the theory behind
      it, follow the directions and play around with the calculator to see some of
      the surprising results. Offered by CNN.fyi.com, the Speed of Light Lesson
      Plan (7) site teaches students how the NEC Research Institute was able to
      "bend" Albert Einstein's theory of relativity. Students are asked to read
      the "Breaking the Speed Limit?" article (which is provided) and then discuss
      several questions about the piece. The last site, part of Berkeley's Center
      for Science Education, is called Light Tour: Discover Light's Mysteries (8).
      The interactive tour lets students discover basic information about light in
      the Universe and how astronomers make use of light wavelengths. [JAB]

      From The NSDL Scout Report for the Physical Sciences, Copyright Internet
      Scout Project 1994-2002. http://scout.cs.wisc.edu/

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