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Handout
Wikimedia

Wikipedia: Rudolf Clausius

For Students 9th - 10th
This site from the Encyclopedia Wikipedia provides brief biographical information on German physicist and mathematician Rudolf Clausius including an image, hyperlinked terms, and external links.
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Activity
Wolfram Research

Wolfram Science World: Rontgen, Wilhelm

For Students 9th - 10th
This site from ScienceWorld provides a very short biographical sketch of Wilhelm Rontgen (1845-1923 CE) and describes his most notable scientific discoveries and contributions.