<DIV>“If I saw further than others,” said Sir Isaac Newton, “it is because I was standing on the shoulders of giants.” This book introduces one hundred of these giants and examines their achievements: the men and women who, often in the face of extreme skepticism or worse, strove and succeeded in pushing back the boundaries of human knowledge. Ranging across the spectrum of scientific endeavor, from the cosmology of Copernicus and Galileo, through the medical revolutions of Hippocrates and Galen, it includes the fields of physics, biology, chemistry, and genetics.</div>