Physically Speaking: A Dictionary of Quotations on Physics and Astronomy provides the largest published collection of quotations pertaining to physics and astronomy. You will find profound, wise, and witty quotes from the most famous to the unknown. Topics range from anti-matter to x-rays. The extensive author and subject indexes provide the perfect tool for locating quotations for practical use or pleasure. This book can be read for entertainment or used as a handy reference by students, scientific readers, and the more general reader who is interested in who has said what on physics and astronomy.