PC140 Astronomy - Fall 2006
Exam from a previous year
Eratosthenes and the circumference of the earth
Ran's Home Page
Aristarchus and the distance to the sun
History of astronomy, a brief overview
Tides
This page,maintained by
Ran Sivron
, was
Some of the contents were modified with permission from
Ned Ladd
's page at Bucknell University
Background is modified from www.stsci.edu (Hubble Space Telescope)
