This augmented new edition adds discussion of the bat's vertical sweetness gradient eye-hand
cross-dominance models for the swing of a bat and accuracy of simulations. The book retains
its description of dynamic collisions between baseballs softballs and bats and the intricate
modeling of these interactions using only basic math and physical principles. Veteran baseball
science author Terry Bahill explains models for the speed and spin of balls and bats and
calculations for bat-ball collisions at a level accessible to most students of the science of
baseball. Demystifying the most important factors for understanding bat performance-bat weight
moment of inertia the coefficient of restitution and characteristics of humans swinging the
bats-Dr. Bahill also explains physical aspects of the optimal bat and the sweet spot.Praise for
the First Edition Dr. Bahill's book is the perfect tool for teaching how to solve some of
baseball's basic science problems. Using only simple Newtonian principles and the conservation
laws Dr. Bahill explains how to model bat-ball collisions. Also he derives equations
governing the flight of the ball and proceeds to show what factors affect air density and how
this density affects the ball's flight. And as a unique addition to his fine book he provides
advice for selecting the optimal bat-a surprising bonus!Dave Baldwin PhDMajor League pitcher
1966-1973 lifetime Major League ERA 3.08 If I were the General Manger of a baseball team I
would tell my people to write a ten-page paper describing what this book contains that could
improve our performance. I think the book provides the foundation for change.Bruce
GissingExecutive VP-Operations (retired) Boeing Commercial Airplanes[I] had a chance to read
your research and I fully agree with your findings.Baseball Legend Ted Williams in a 1984
letter to the author
