NS211: Natural Sciences

Course Calendar and Announcements

Problem Set Assignments and Solutions

Eratosthenes and the circumference of the earth

Exams (with Answers!)

Aristarchus and the distance to the sun

Syllabus and course plan

Ran's Home Page

Links to interesting sites

This page,maintained by Ran Sivron, was
Modified with permission from Ned Ladd's page at Bucknell University
Background is modified from www.stsci.edu (Hubble Space Telescope)