"Heroes of Science: Physicists" by William Garnett is a historical account written in the late 19th century. This work presents biographies of notable physicists, primarily British, detailing their contributions to the field of physical science. The author's goal is to make these important historical scientific achievements accessible to a wider audience, particularly students in schools and colleges. The opening of the book provides an introduction to the themes that will be explored, emphasizing the significance of understanding the history of physical science alongside its principles. Garnett notes that many renowned figures in physics—including Robert Boyle and Benjamin Franklin—will be discussed in terms of their discoveries and contributions to various segments of the field, including mechanics, thermodynamics, optics, and electricity. The introductory segment sets the stage for a closer examination of how these scientists built upon earlier ideas and experiments to help shape our modern understanding of physical science. (This is an automatically generated summary.)