Lecturer: Lu Wanpeng July 14th

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Presentation transcript:

Lecturer: Lu Wanpeng July 14th Two New Sciences Discourses and Mathematical Demonstrations Relating to Two New Sciences Lecturer: Lu Wanpeng July 14th

Introduction 1638 Galileo’s final book Covering much of his work in physics over the preceding thirty years Laid the foundations of modern physics

Two new sciences The strength of materials : square-cube law "...ratio of two volumes is greater than the ratio of their surfaces." The motion of objects Constant acceleration of a falling body Measure accurately using an inclined plane

Three man - different stages of life Three men and four days Three man - different stages of life three men (Simplicio, Sagredo, and Salviati) Four days - different areas of physics First Day : an introduction Second day : the strength of materials Third day : uniform and naturally accelerated motion Fourth day : projectile motion

Reactions by commentators “So great a contribution to physics was Two New Sciences that scholars have long maintained that the book anticipated Isaac Newton’s laws of motion.” — Stephen Hawking. “Galileo ... is the father of modern physics—indeed of modern science“ —Albert Einstein.

Thank you for listening