Timothy M. Lawlor

As a young student, I was already in awe of the astrophysical world, but this text was my first significant introduction to the mathematical beauty and elegance of physics: the science that astronomy is built on. It wakes one's imagination when first calculating the wavelength of a baseball! The mathematics uncovered here carried over to many other fields and subfields of physics. It was this text that first made me say, "Ah ha!"