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How heavy is that cloud? Why can you see farther in rain than in fog? Why are the droplets on that spider web spaced apart so evenly? If you have ever asked questions like these while outdoors, and wondered how you might figure out the answers, this is a book for you. An entertaining and informative collection of fascinating puzzles from the natural world around us, A Mathematical Nature Walk will delight anyone who loves nature or math or both.

John Adam presents ninety-six questions about many common natural phenomena--and a few uncommon ones--and then shows how to...

This one-of-a-kind book presents many of the mathematical concepts, structures, and techniques used in the study of rays, waves, and scattering. Panoramic in scope, it includes discussions of how ocean waves are refracted around islands and underwater ridges, how seismic waves are refracted in the earth's interior, how atmospheric waves are scattered by mountains and ridges, how the scattering of light waves produces the blue sky, and meteorological phenomena such as rainbows and coronas.

Rays, Waves, and Scattering is a valuable resource for practitioners, graduate students,...

X and the City, a book of diverse and accessible math-based topics, uses basic modeling to explore a wide range of entertaining questions about urban life. How do you estimate the number of dental or doctor's offices, gas stations, restaurants, or movie theaters in a city of a given size? How can mathematics be used to maximize traffic flow through tunnels? Can you predict whether a traffic light will stay green long enough for you to cross the intersection? And what is the likelihood that your city will be hit by an asteroid?

Every math problem and equation in this...

Rudolf Bultmann was the most significant New Testament scholar we have known in the twentieth century. This study approaches his work arguing that his theology can only be understood correctly as an interpretation of the New Testament. Naturally it is a twentieth-century interpretation involving complex hermeneutical questions. But it is the New Testament which provides the subject matter to be interpreted. Bultmann's theology, stemming from the conviction that the New Testament addresses the present age, offers important solutions to many problems for Christian theology in our...

The critics are calling "How To Play The Game Of Life And Win" one of the best self-help books ever written.

"Not since "The Road Less Traveled" Have I been so moved. John is evidence to me that Good speaks and works through other people. This book is divinely inspired." - Rev Donald Theodore

"Destined to be a bestseller." - Rick Gerard, "Miami Weekly"

"Written in simple yet profound language that is easy to understand. It is helpful and can be an inspiration to everyone. John is a great writer with a strong message." - Betsy A Haas, M.A., President, Esteemed Human Development...

The critics are calling "How To Play The Game Of Life And Win" one of the best self-help books ever written.

"Not since "The Road Less Traveled" Have I been so moved. John is evidence to me that Good speaks and works through other people. This book is divinely inspired." - Rev Donald Theodore

"Destined to be a bestseller." - Rick Gerard, "Miami Weekly"

"Written in simple yet profound language that is easy to understand. It is helpful and can be an inspiration to everyone. John is a great writer with a strong message." - Betsy A Haas, M.A., President, Esteemed Human Development...

This book is part of the bestselling Good Night Our World series, which includes hundreds of titles exploring iconic locations and exciting,...

Despite what most guys think, hormones are just as important for them as they are for women. However, by the age of 30, the typical man's testosterone levels start to drop 1 percent each year, which can result in less muscle, less energy, more fat, and a flagging sex drive.

After a decade of research, health and fitness expert John Romaniello has discovered safe, natural, and highly effective ways to produce more testosterone and bring about remarkable changes in a man's body. His program is based on cutting-edge science that counters the online "noise" about male hormones.

In...