books.google.com - Measuring the Universe is the first history of the evolution of cosmic dimensions, from the work of Eratosthenes and Aristarchus in the third century B.C. to the efforts of Edmond Halley (1656—1742). "Van Helden's authoritative treatment is concise and informative; he refers to numerous sources of...http://books.google.com/books/about/Measuring_the_Universe.html?id=L-yb7GX9mQIC&utm_source=gb-gplus-shareMeasuring the Universe
