In compiling this edition, we have been fortunate in being able to rely upon the expertise and contributions of the following scholars who served as contributing advisors or authors for Real-Life Math, and to them we would like to express our sincere appreciation for their efforts:
William Arthur Atkins
Mr. Atkins holds a BS in physics and mathematics as well as an MBA. He lives at writes in Perkin, Illinois.
Juli M. Berwald, PhD
In addition to her graduate degree in ocean sciences, Dr. Berwald holds a BA in mathematics from Amherst College, Amherst, Massachusetts. She currently lives and writes in Chicago, Illinois.
Bennett Brooks
Mr. Brooks is a PhD graduate student in mathematics. He holds a BS in mathematics, with departmental honors, from University of Redlands, Redlands, California, and currently works as a writer based in Beaumont, California.
Rory Clarke, PhD
Dr. Clark is a British physicist conducting research in the area of high-energy physics at the University of Bucharest, Romania. He holds a PhD in high energy particle physics from the University of Birmingham, an MSc in theoretical physics from Imperial College, and a BSc degree in physics from the University of London.
Raymond C. Cole
Mr. Cole is an investment banking financial analyst who lives in New York. He holds an MBA from the Baruch Zicklin School of Business and a BS in business administration from Fordham University.
Bryan Thomas Davies
Mr. Davies holds a Bachelor of Laws (LLB) from the University of Western Ontario and has served as a criminal prosecutor in the Ontario Ministry of the Attorney General. In addition to his legal experience, Mr. Davies is a nationally certified basketball coach.
John F. Engle
Mr. Engle is a medical student at Tulane University Medical School in New Orleans, Louisiana.
William J. Engle
Mr. Engle is a retired petroleum engineer who lives in Slidell, Louisiana.
Paul Fellows
Dr. Fellows is a physicist and mathematician who lives in London, England.
Renata A. Ficek
Ms. Ficek is a graduate mathematics student at the University of Queensland, Australia.
Larry Gilman, PhD
Dr. Gilman holds a PhD in electrical engineering from Dartmouth College and an MA in English literature from Northwestern University. He lives in Sharon, Vermont.
Amit Gupta
Mr. Gupta holds an MS in information systems and is managing director of Agarwal Management Consultants P. Ltd., in Ahmedabad, India.
William C. Haneberg, PhD
Dr. Haneberg is a professional geologist and writer based in Seattle, Washington.
Bryan D. Hoyle, PhD
Dr. Hoyle is a microbiologist and science writer who lives in Halifax, Nova Scotia, Canada.
Kenneth T. LaPensee, PhD
In addition to professional research in epidemiology, Dr. LaPensee directs Skylands Healthcare Consulting located in Hampton, New Jersey.
Holly F. McBain
Ms. McBain is a science and math writer who lives near New Braunfels, Texas.
Mark H. Phillips, PhD
Dr. Phillips serves as an assistant professor of management at Abilene Christian University, located in Abilene, Texas.
Nephele Tempest
Ms. Tempest is a writer based in Los Angeles, California.
David Tulloch
Mr. Tulloch holds a BSc in physics and an MS in the history of science. In addition to research and writing he serves as a radio broadcaster in Ngaio, Wellington, New Zealand.
James A. Yates
Mr. Yates holds a MMath degree from Oxford University and is a teacher of maths in Skegnes, England.
The editors would like to extend special thanks to Connie Clyde for her assistance in copyediting. The editors also wish to especially acknowledge Dr. Larry Gilman for his articles on calculus and exponents as well as his skilled corrections of the entire text. The editors are profoundly grateful to their assistant editors and proofreaders, including Lynn Nettles and Bill Engle, who read and corrected articles under the additional pressures created by evacuations mandated by Hurricane Katrina. The final editing of this book was interrupted as Katrina damaged the Gulf Coast homes and offices of several authors, assistant editors, and the editors of RLM just as the book was being prepared for press. Quite literally, many pages were read and corrected by light produced by emergency generators—and in some cases, pages were corrected from evacuation shelters. The editors are forever grateful for the patience and kind assistance of many fellow scholars and colleagues during this time.
The editors gratefully acknowledge the assistance of many at Thompson Gale for their help in preparing Real-Life Math. The editors wish to specifically thank Ms. Meggin Condino for her help and keen insights while launching this project. The deepest thanks are also offered to Gale Senior Editor Kim McGrath for her tireless, skilled, good-natured, and intelligent guidance.