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Royal Astronomical Society
Official homepage for the Royal Astronomical Society, dedicated to "the encouragement and promotion of astronomy and geophysics."
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The Total Solar Eclipse Described by Plutarch Pdf [Pdf]
An exploration of the total eclipse of the sun described by Plutarch in his DE FACIE IN ORBE LUNAE. Requires Adobe Reader.
University of Manchester
Umist: Mathematical Formula Tables
This site has links to tables of mathematical formulas. To view them, the student must download the formulas in pdf format.