MSN Learning & Research Plus: Copernicus, Nicolaus - http://encarta.msn.com/encnet/refpages/RefArtContent.aspx?refid=761571204 Encyclopedia article provides an overview of the astronomer's early life, his education, and his revolutionary theory that the earth was not the center of the universe.
Nicolaus Copernicus - http://www.frombork.art.pl/Ang02.htm Discovered that the Earth is not in the center of the Universe but it circles the Sun. Facts of life and pictures of the Polish astronomer.
Nicolaus Copernicus - http://plato.stanford.edu/entries/copernicus/ Life and works.
Modern History Sourcebook: Nicolas Copernicus - http://www.fordham.edu/halsall/mod/1543copernicus2.html Gives excerpts from the scientist's works. Lists the astronomer's reasons as to why the earth must be round, such as pointing to the different times that peoples from different geographic regions see the moon appear at night.
Nicolaus Copernicus - http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/copernicus.html Introduces the father of modern astronomy.
Squashed Copernicus - http://www.btinternet.com/~glynhughes/squashed/copernicus.htm An abridged version of "Revolutions". Includes study notes, diagrams and glossary.
Nicolas Copernicus - http://www.blupete.com/Literature/Biographies/Science/Copernicus.htm A short biography (1473-1543).
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