When above-the-knee amputeeswalk, we generate seven to nine times the force of our body weight right into the point where the prosthesis meets our residual leg. For me, that's almost 1,500 pounds slamming into that socket.
For any amputee, learning to walk with a prosthetic leg is a painful, grueling ordeal. Soon after army medic Kortney Clemons, who lost his right leg to a roadside bomb in Baghdad, began the process, he had more than walking in mind. He wanted to run, and run fast. Barely three years after the awful attack that changed his life forever, he aimed to join the elite corps of international athletes vying for gold in the 2008 Paralympics in Beijing. His account of his recovery from this catastrophic wound and his drive to become the first Iraq veteran to win Paralympic gold is one of the most remarkable, inspiring, and compelling stories in the history of sports.

Renowned authors William Briggs and Lyle Cochran have built from the ground up a new AP(R) calculus program that draws on their decades of teaching experience and carries the teacher's voice beyond the classroom. That voice is evident in the lively narrative, the intuitive figures, and the integrated questions that check for comprehension. The result is a master AP(R) teacher leading AP(R) students to deeper levels of understanding. The authors appeal to readers' geometric intuition to introduce fundamental concepts and lay the foundation for success on the AB and BC Calculus exams. Briggs/Cochran AP(R) Calculus: *AP(R) Aligned: AP-specific chapter content clearly correlates to the AP Curriculum Framework and prepares students for the AB or BC exam.*Geometric Intuition: The authors appeal to students' intuition and geometric instincts to make calculus natural and believable. They introduce new ideas through concrete examples, figures, applications, or analogies.*Ground breaking Technology & Interactive Figures: Interactive figures within the eBook enable teachers and students to manipulate figures and bring hard-to-convey concepts to life.* A Balanced Approach: The authors purposely teach from examples that provide in depth explanations and build students' conceptual understanding and computational fluency.