Indice: List of illustrations. Acknowledgements. Introduction: Conjectural history. Pt. 1. The mind's eye: 1. His father's son 2. Florence 3. Galileo's lamp 4. Eureka! 5. Seeing is believing 6. A friend in need 7. Juvenilia 8. The leaning tower 9. Inertia 10. Nudism. Pt. 2. The watcher of the skies: 11. Copernicanism 12. Money 13. Field of fire 14. The experimental method 15. The telescope 16. Mother 17. The Starry Messenger 18. Florence and buoyancy 19. Jesuits and the new astronomy 20. Sunspots 21. The catholic scientist. Pt. 3. The eagle and the arrow: 22. Copernicus condemned 23. Comets 24. The death of Gianfrancesco Sagredo 25. Urban VIII 26. Family ties 27. Permission to publish 28. Alessandra Buonamici 29. A river floods 30. Publication 31. The Dialogue. Pt. 4. Prisoner to the Inquisition: 32. Maria Celeste and Arcetri 33. Trial 34. The Two New Sciences 35. Vincenzo, son of Galileo 36. Galileo's (un)belief 37. The cosmography of the self. Coda: Galileo, history and the historians. Notes. Bibliography. Index