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Sioux Falls Scientists endorse Understanding Gravity for a good
explanation of how gravity works, but no good explanation of why
gravity cannot be unified with the other fundamental forces.

Understanding Gravity
Black Holes, Tides, and Curved Spacetime
Lectures by Professor Benjamin Schumacher

Understanding Gravity (2013) - 24 lectures, 12 hours
Understanding Gravity at TheGreatCourses.com

The force of gravity rules the universe. It governs our everyday lives on Earth and it controls the motions of the heavens above. Yet it is one of the least understood of all the forces of nature. To endeavor to understand this fundamental force is to experience anew something as simple as getting out of bed, throwing a ball, or diving into a pool; and it gives deep insight into the central organizing principle of the cosmos.

Consider these crucial aspects of gravity:

  • Gravity governs the rising and falling of tides - not only tides in the ocean, but tides in the solid rock of Earth itself.
  • Gravity molds the sun and planets into spheres, and it holds celestial objects in their orbits.
  • Gravity ignites the nuclear fires inside each star, then fights a billion-year battle to determine its fate.
  • Gravity collects stars into galaxies and causes galaxies to collide in intricate mergers that we can model with supercomputers.

Without gravity, everything would dissolve into a gas of randomly interacting atoms. It is the only truly universal force, affecting not just matter but also light, time, and, at a basic level, all information. The study of gravity helped spark the Scientific Revolution in the 17th century, and it continues to be at the forefront of physics today, as scientists rely on gravity to investigate otherwise inaccessible phenomena such as dark matter and dark energy. An understanding of gravity - what it is, how it works, and why it is the most dominant and puzzling force in the universe - is both endlessly fascinating and accessible to any curious person, regardless of his or her science education.

Black Holes, Tides, and Curved Spacetime: Understanding Gravity plunges you into this compelling subject in 24 intensively illustrated half-hour lectures, presented by Professor Benjamin Schumacher of Kenyon College. Professor Schumacher is an award-winning teacher, a prominent theoretical physicist, and a protégé of John Archibald Wheeler, the distinguished gravity theorist who first coined the term "black hole."

No book or other comparable product exists that presents gravity in such comprehensible detail as this course, which covers the key ideas in gravity research over the past 400 years and gives you the background to understand today's path-breaking theories in physics. Professor Schumacher even walks you through some of the fundamental equations in the field, such as Isaac Newton's law of universal gravitation and Albert Einstein's equation governing the curvature of spacetime by matter, giving you a firsthand look at the power of these mathematical expressions to explain reality - plus further opportunities to explore them with the course guidebook.

Professor Benjamin Schumacher is Professor of Physics at Kenyon College, where he has taught for 25 years. He received his Ph.D in Theoretical Physics from The University of Texas at Austin. Professor Schumacher is the author of Physics in Spacetime: An Introduction to Special Relativity. For his contributions to quantum information theory, he won the 2002 International Quantum Communication Award and was named a Fellow of the American Physical Society. Professor Schumacher has spent sabbaticals working at Los Alamos National Laboratory and the Institute for Quantum Information at the California Institute of Technology.

24 Lectures - 30 minutes each

1: The Strangest Force 13: From Forces to Fields
2: Free Fall and Inertia 14: The Falling Laboratory
3: Revolution in the Heavens 15: Spacetime in Zero Gravity
4: Universal Gravitation 16: Spacetime Tells Matter How to Move
5: The Art of Experiment 17: Matter Tells Spacetime How to Curve
6: Escape Velocity, Energy, and Rotation 18: Light in Curved Spacetime
7: Stars in Their Courses - Orbital Mechanics 19: Gravitomagnetism and Gravitational Waves
8: What Are Tides? Earth and Beyond 20: Gravity's Horizon - Anatomy of a Black Hole
9: Nudge - Perturbations of Orbits 21: Which Universe Is Ours?
10: Resonance - Surprises in the Intricate Dance 22: Cosmic Antigravity - Inflation and Dark Energy
11: The Million-Body Problem 23: The Force of Creation
12: The Billion-Year Battle 24: The Next Revolution


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Understanding Gravity
Black Holes, Tides, and Curved Spacetime
Lectures by Professor Benjamin Schumacher

Sioux Falls Scientists endorse Understanding Gravity for a good
explanation of how gravity works, but no good explanation of why
gravity cannot be unified with the other fundamental forces.