science

why are electromagnetic waves called perpetuating waves?

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asked by allison
  1. Since this is not my area of expertise, I searched Google under the key words "electromagnetic perpetuating waves" to get these possible sources:

    http://www.everything2.com/index.pl?node=electromagnetic%20radiation
    (Broken Link Removed)
    http://howthingswork.virginia.edu/page1.php?QNum=540
    http://cornellmath.wordpress.com/2007/08/08/why-stuff-is-hard/
    http://www.rexresearch.com/hodorhys/emsigprp/emsigprp.htm

    In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

    I hope this helps. Thanks for asking.

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    posted by PsyDAG

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