What is it about a quality fastball that brings us to the edge of our seats? How is it humanly possible to throw more than 100 mph? And the big question: Who is the fastest pitcher ever? Drawing on interviews with current and former players, managers, scouts, experts, and historians, Tim Wendel delivers the answers to some of the most intriguing questions about the fastball, providing insight into one of baseball's most exhilarating yet mystifying...