Publisher's Synopsis
"Van Helden's authoritative treatment is concise and informative; he refers to numerous sources of information, draws on the discoveries of modern scholarship, and presents the first book-length treatment of this exceedingly important branch of science."-Edward Harrison, American Journal of Physics
"Van Helden writes well, with a flair for clear explanation. I warmly recommend this book."-Colin A. Ronan, Journal of the British Astronomical Association