Provides a brief biography, followed by a selection of Galilei's writings.

Galileo's 1632 book, Dialogue on the Two Chief World Systems, Ptolemaic and Copernican, comes alive for twentieth-century readers thanks to Maurice Finocchiaro's brilliant new translation and presentation. Condemned by the Inquisition for its heretical proposition that the earth revolves around the sun, Galileo's masterpiece takes the form of a debate, divided into four "days," among three highly articulate gentlemen. Finocchiaro sets the stage with his introduction, which not only provides the human and historical framework for the Dialogue but also admits the reader gracefully into the basic non-Copernican understanding of the universe that would have been shared by Galileo's original audience. The translation of the Dialogue is abridged in order to highlight its essential content, and Finocchiaro gives titles to the various parts of the debate as a guide to the principal topics. By explicating his own critical reading of this text that is itself an exercise in critical reasoning on a gripping real-life controversy, he illuminates those universal, perennial activities of the human mind that make Galileo's book a living document. This is a concrete, hands-on introduction to critical thinking. The translation has been made from the Italian text provided in volume 7 of the Critical National Edition of Galileo's complete works edited by Antonio Favaro. The translator has also consulted the 1632 edition, as well as the other previous English translations, including California's 1967 version. Galileo on the World Systems is a remarkably nuanced interpretation of a classic work and will give readers the tools to understand and evaluate for themselves one of the most influential scientific books in Western civilization.

Galileo's groundbreaking dialogues are a summation of three decades of scientific work he had undertaken in the fledgling field of physics. This edition includes the diagrams crucial for understanding the text. Writing these dialogues in 1638, the elderly Galileo had a life of achievements behind him. Despite attempts at suppression of his writings by the Roman Inquisition, his ideas were successfully communicated across Europe. The motion of objects and resistance to such motion, the concept of velocity, and the laws of gravity are merely a few of the topics covered in these detailed dialogues. At the outset, we are introduced to the three conversation partners: Salviati, Sagredo and Simplicio. These three Venetians embark on a scientific discussion, hoping to explain the curiosities of things such as speed and movement. Over the course of four days, their meetings grow in complexity and scope as they strive to explain physical phenomena. Later, we encounter many propositions and theorems concerning a wide variety of subjects; these represent the sum of Galileo's progress in understanding gravity, motion, resistance, acceleration, velocity, and the behavior of material structures. The 'Two New Sciences' referred to by the title are the nature of materials, and the motion of objects. A total of 130 illustrations and charts populate this text; for the most part, they are situated adjacent to their respective proposition or theorem. In many of the more complex explanations, they are important in aiding the reader to grasp what Galileo means. Through absorbing these wide-ranging investigations, we may appreciate the justness of Galileo's moniker: "The father of modern physics." This edition's translation to English is by Alfonso de Salvio and Henry Crew. The former was an expert on the technical aspects of the Italian language, while the latter was a longstanding scholar of physics with much experience teaching in the field.

Galileo's outstanding scientific work supporting the new Copernican conception of the universe (which led to the famous trial). In the form of a conversation among characters named Salviati, Sagredo, & Simplicio.

Pt. 1. His life. Curious student ; Research professor ; Clever courtier ; Popular author. -- Pt. 2. His works. Interpreting sense impressions ; Continua -- Mathematical and physical ; Magnetism ; The pump that failed ; Apparent lightness ; Weighing air ; Floating ebony ; Analyzing an alloy ; The screw as a machine ; Strength of materials ; Natural oscillations ; Falling bodies ; Spots on the sun ; New moons ; Parallax of a star ; Nature -- God's handiwork. -- Outline of life and works.

As enjoyable as it is important, this classic encompasses 30 years of highly original experiments and theories. Its lively expositions discuss dynamics, elasticity, sound, strength of materials, and more. 126 diagrams.

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