[IMAGE: Fanciful portrait of Ptolemy] [IMAGE: Space shuttle in orbit]
You have reached the home page of a book-on-the-web, a coherent,
self-contained course at the high-school level, also suitable
for independent study, rich in history. A button at the end of each text
file brings you back here. Its contents (full list further below) cover:


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More Links:
An overview of this site and two sister sites.         http://www.phy6.org/readfirst.htm
    "Zip" compressed version of this set (11.1 Mb) http://www.phy6.org/stargaze.zip .
    Beyond science:         Welcome to my World, a diverse collection of writings.
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