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I. Introduction to the Scientific Revolution A. The New Science 1. 2. 3. B. A body of knowledge A method of inquiry A community of practitioners and institutions The Scientific Revolution 1. 2. 3. Heliocentricity A new mathematical physics New Method of inquiry II. The Intellectual Origins of the Scientific Revolution A. Medieval antecedents 1. 2. 3. 4. 5. 6. Artists and their observations of the natural world The magnetic compass The printing press Gunpowder A fascination with light (optics and lens grinding) A natural world created by God a. Neoplatonism II. The Intellectual Origins of the Scientific Revolution (cont’d) B. The Renaissance 1. 2. 3. 4. 5. 6. 7. 8. Humanists placed lower value on science a. More interested in classical antiquity and the authority of the ancients Arabic translations of Greek classics Rediscovery of Ptolemy and Archimedes Developing collaboration between artisans and intellectuals Building machines for practical use The laws of perspective and optics Alchemy and astrology Voyages of discovery a. Travelers accounts of foreign lands b. Attacking the authority of the ancients III. The Copernican Revolution A. Medieval science 1. Authority of the ancients: Aristotle and Ptolemy a. Heavenly bodies orbit in a hierarchy of spheres b. Heavens and earth composed of different matter c. The “quintessence” (the ether) d. Earth, air, fire and water e. The “prime mover” B. Late Middle Age developments 1. 2. 3. Ptolemaic system did not conform to observations Retrograde motion Roman calendar out of alignment with movement of heavenly bodies a. The “problem” of Easter and other holy days III. The Copernican Revolution (cont’d) C. Nicholas Copernicus (1473-1543) 1. 2. 3. 4. Renaissance man Ptolemaic system had become too messy Copernican system a. The earth moved and was not the center of the planetary system b. The earth rotated on its axis and orbited the sun On the Revolutions of the Heavenly Bodies (1543) IV. Tycho’s Observations and Kepler’s Laws A. Tycho Brahe (1546-1601) 1. 2. 3. 4. 5. Born into the Danish nobility A champion of observation Observed the appearance of a new star (nova) in 1572 Built his own observatory Tycho not a Copernican a. Planets orbited the sun, the whole of which orbited a stationary earth IV. Tycho’s Observations and Kepler’s Laws (cont’d) B. Johannes Kepler (1571-1630) 1. 2. 3. 4. Served as Tycho’s assistant Everything had been created according to mathematical laws a. Mathematics as the language of God b. Mathematical perfection and musical harmonies Three laws of planetary motion a. Planets travel in elliptical orbits b. Speed of the planets varied with their distance from the sun c. Magnetic forces kept the planets in orbital motion New Astronomy or Celestial Physics (1609) V. New Heavens, New Earth, and Worldly Politics: Galileo Galilei (1564-1642) A. Galileo the man 1. 2. 3. 4. 5. B. A witty and persuasive writer (wrote in Latin and Italian) A popularizer of the non-Aristotelian approach to science Impatient with those who opposed him A new relationship between religion and science Controversy and the collision course with the Church The telescope 1. 2. 3. Built his own telescope in 1610 Observed the features of the moon, the moons of Jupiter and sun spots A challenge to heavenly perfection 4. The Starry Messenger (1610) V. New Heavens, New Earth, and Worldly Politics: Galileo Galilei (1564-1642) (cont’d) D. Conflict with the Church 1. 2. 3. A Dominican monk denounced Galileo’s ideas as a dangerous deviation Letter to the Grand Duchess Christina de Medici (1615) a. One can be a sincere Copernican and a Catholic b. Understanding the physical world is best left to the natural philosopher 1616: the Inquisition declares heretical the proposition that the earth moves a. Copernicus’s De Revolutionibus is placed on the Index of Forbidden Books V. New Heavens, New Earth, and Worldly Politics: Galileo Galilei (1564-1642) (cont’d) Conflict with the Church (cont’d) D. 4. E. A Dialogue Concerning the Two Chief World Systems (1632) a. Inquisition banned the book b. Galileo ordered to stand trial in 1633 c. Recanted his beliefs and placed under house arrest for life The legacy 1. 2. 3. 4. 5. 6. The theory of inertia Law of falling bodies Two New Sciences (1638) Combined discovery, observation, experiment and mathematics Suggested universal laws of motion The new science moves out of Italy to Northwest Europe VI. Methods for a New Philosophy: Bacon and Descartes A. B. The need for a scientific method Francis Bacon (1561-1626) 1. 2. 3. 4. 5. 6. New confidence in the potential of human thought Lord Chancellor to James I Separation of scientific investigation from philosophical argument The inductive method a. Combining evidence from observations to draw general conclusions b. Cooperation between researchers c. “Useful” knowledge Great Instauration (1620) The New Atlantis (1626) a. Solomon’s House VI. Methods for a New Philosophy: Bacon and Descartes (cont’d) C. Rene Descartes (1596-1650) 1. 2. 3. An intellectually restless man The Discourse on Method (1637) a. Began as an essay on optics, geometry and meteorology b. Systematic doubt of everything c. Cogito ergo sum (“I think, therefore I am”) d. The thinking person exists, reasons exists, God exists The deductive method a. A “fresh start for knowledge” b. Proceed logically from one certainty to another c. Mathematical thought an expression of the highest standards of reason VII. The Power of Method and the Force of Curiosity: Seventeenth Century Experimenters (cont’d) B. The Baconians 1. 2. 3. 4. 5. Began with practical research Sought empirical laws based on evidence William Harvey (1578-1657) a. The circulation of blood b. Dissected live animals Robert Boyle (1627-1691) a. Boyle’s law Robert Hooke (1635-1703) a. Introduced the microscope b. The cellular structure of plants VII. The Power of Method and the Force of Curiosity: Seventeenth Century Experimenters (cont’d) C. D. God as clockmaker Science, society, and the state 1. The Royal Society (charter granted 1662) a. Committed to experiment and collaborative work b. Serving political and intellectual purpose c. Philosophical Transactions i. Reached out to professional scholars across Europe VII. The Power of Method and the Force of Curiosity: Seventeenth Century Experimenters (cont’d) Science, society, and the state (cont’d) D. 2. 3. 4. French Academy of Sciences (1666) A state-sponsored framework for scientific endeavor Easing the exchange of information and theories VIII. “And All Was Light”: Isaac Newton, 1643-1727 A. B. The culmination of the Scientific Revolution Newton the man 1. 2. 3. C. Born to a family of small landowners Studied at Trinity College, Cambridge (stayed 35 years) A reclusive, secretive, and obsessive man Newton the scientist 1. 2. 3. Optics a. Used prisms to demonstrate that light was composed of different-colored rays Mathematics a. Integral and differential calculus Gravity a. The falling apple VIII. “And All Was Light”: Isaac Newton, 1643-1727 (cont’d) Newton the scientist (cont’d) C. 4. 5. 6. Reflective telescope Elected to the Royal Society (1672) Principia Mathematica ( Mathematical Principles of Natural Philosophy) a. Published in 1687 (prompted by Edmund Halley) b. A long and difficult work c. Gravitation was a universal force that could be expressed mathematically d. Built upon the work of Galileo, Kepler, Boyle, Descartes and Hooke e. A single, descriptive account of mass and motion f. The laws of gravitation VIII. “And All Was Light”: Isaac Newton, 1643-1727 (cont’d) D. The legacy of Newton 1. 2. 3. 4. Certainty and objectivity lay in the precise mathematical characterization of phenomenon Popularization of Newton by John Locke Buried at Westminster Abbey (Pope’s couplet) Voltaire spread Newtonian ideas to France IX. A. B. C. Science and modernity Science as a justification for Western expansion of empire Observations 1. 2. 3. 4. D. E. F. Transformations: Science and Cultural Change Science and elite knowledge The authority of the ancients did not disappear quickly Science did not subvert religion Newton as a transitional figure between the past and the future New answers to fundamental questions Science and scientific institutions The role of mathematics X. Conclusion