Black Holes, Tides, and Curved Spacetime: Understanding Gravity

Peer into one of the great mysteries of modern physics-the force of gravity-in this brilliant and insightful course taught by an award-winning professor of physics.
Black Holes, Tides, and Curved Spacetime: Understanding Gravity is rated 4.7 out of 5 by 105.
  • y_2021, m_9, d_17, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.19
  • cp_1, bvpage1
  • co_hasreviews, tv_8, tr_97
  • loc_en_CA, sid_1231, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_teachco
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getAggregateRating, 5.18ms
  • REVIEWS, PRODUCT
Rated 5 out of 5 by from This was so incredibly enjoyable! The enthralling manner in which the subject is presented is so very captivating that it's hard to take a break in-between lectures. The course sheds an entirely new light on gravity, or perhaps, bends that light in delightfully intriguing ways. Thank you so much!
Date published: 2021-07-08
Rated 5 out of 5 by from Essential Though I had been exposed to 70-80% of the material in high-school or college physics, the remaining 20-30% was well worth the investment of time and money. To gain a better understanding of both the Theories of Relativity and Quantum Mechanics, there are 6-8 Great Courses lectures that one must review. But I will defend my very negative review of one course (1247) which I trashed in a review but which my review led to my being criticized severely. My mean star score for Great Courses courses is 4.18.
Date published: 2021-06-17
Rated 5 out of 5 by from This is one of the best Professor Schumacher is an excellent instructor and his presentation added to my enjoyment of the material. He covers the history and science with an easy to follow style. This series covers a lot of material but nothing is too difficult to follow.
Date published: 2021-04-17
Rated 5 out of 5 by from One of Best Great Courses Excellent course. First, the professor clearly knows his subject and has one of the best presentation styles I have encountered in the Great courses. He varies his tone, is very careful in word choice, is a good story teller, and creates suspense from lecture to lecture. Second, the graphics are excellent. I thought I knew many of concepts presented, but the creative and clever graphics demonstrated in every lecture made these concepts easy to understand and remember. The structure of the course is historical in nature starting with Galileo and Newton, then progressing thorugh Einstein and later physicists, and provides clear and interesting insights in to the person as well as concepts they developed, and ends with the unsolved mysteries of the 21st century. This is a very good course and should appeal to a broad range of viewers, from those new to physics to those who follow new conceps in physics and want and interesting review of the topic.
Date published: 2021-01-13
Rated 1 out of 5 by from Gravity? Who knew Professor Schumacher is brilliant! As a non-physicist, I have taken several courses which entail the concept of quantum mechanics. There are always “walls” and new views to try and inculcate and to a degree understand. Schumacher enabled me to conquer my self imposed shortcomings in relationship to several of these concepts and new ways of understanding the functioning and make-up of the universe. He was able to explain their origin and demonstrate the proofs thereof. His ability to explain was remarkable, and the patience he took to review and relate the theories were wonderful. This is not to say the course is an easy listen. It is hard work and takes energy, both in letting go of the old and grasping the new. Deep thought and contemplation on the students part is an absolute requirement, but so worth the effort. Kudos to Professor Schumacher.
Date published: 2020-12-23
Rated 5 out of 5 by from Clear explanations I have to applaud Prof Schumacher for making difficult subjects understandable through his lectures and examples and video. I have a PhD in chemistry but biochemistry and only an interest in quantum mechanics, gravity, and astrophysics. This series of lectures finally has made these subjects easy to understand. Recommend it for those who have read the physics books and are still scratching their heads about what this all means.
Date published: 2020-11-02
Rated 5 out of 5 by from Comprehansive content This course covers a terrific amount of information that can be understood by a literate non-specialist audience of the subject.
Date published: 2020-09-28
Rated 5 out of 5 by from Excellent Review of Gravity A delightful and educational review of gravity directed towards the layperson or any person interested in how the world works. All the explanations are presented in an intuitive fashion with basic algebra only used to cement relationships. Even if one is far removed from the language of mathematics the principles and concepts are presented in a clear and succinct language. A five star presentation by a remarkable instructor. I learned something in every lecture. Michael Gilbreath MD / South Carolina.
Date published: 2020-09-02
  • y_2021, m_9, d_17, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.19
  • cp_1, bvpage1
  • co_hasreviews, tv_8, tr_97
  • loc_en_CA, sid_1231, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_teachco
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 6.32ms
  • REVIEWS, PRODUCT

Overview

The force of gravity rules the universe, yet it is one of the least understood of all the forces of nature. The study of gravity helped spark the Scientific Revolution in the 17th century, and it continues to be at the forefront of physics today. Now, in Black Holes, Tides, and Curved Spacetime: Understanding Gravity, plunge into this compelling subject in 24 intensively illustrated lectures, presented by Professor Benjamin Schumacher. This course 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.

About

Benjamin Schumacher
Benjamin Schumacher

Gravity is about both phenomena near at hand at the human scale, everyday and intuitive, and phenomena far off at an astronomical scale.

INSTITUTION

Kenyon College

Dr. Benjamin Schumacher is Professor of Physics at Kenyon College, where he has taught for 20 years. He received his Ph.D. in Theoretical Physics from The University of Texas at Austin in 1990. Professor Schumacher is the author of numerous scientific papers and two books, including Physics in Spacetime: An Introduction to Special Relativity. As one of the founders of quantum information theory, he introduced the term qubit, invented quantum data compression (also known as Schumacher compression), and established several fundamental results about the information capacity of quantum systems. For his contributions, he won the 2002 Quantum Communication Award, the premier international prize in the field, and was named a Fellow of the American Physical Society. Besides working on quantum information theory, he has done physics research on black holes, thermodynamics, and statistical mechanics. Professor Schumacher has spent sabbaticals working at Los Alamos National Laboratory and as a Moore Distinguished Scholar at the Institute for Quantum Information at California Institute of Technology. He has also done research at the Isaac Newton Institute of Cambridge University, the Santa Fe Institute, the Perimeter Institute, the University of New Mexico, the University of Montreal, the University of Innsbruck, and the University of Queensland.

By This Professor

Black Holes, Tides, and Curved Spacetime: Understanding Gravity
854
Quantum Mechanics
854
The Science of Information: From Language to Black Holes
854
Impossible: Physics Beyond the Edge
854
Black Holes, Tides, and Curved Spacetime: Understanding Gravity

Trailer

The Strangest Force

01: The Strangest Force

Begin your exploration of gravity with Isaac Newton and the famous story of the apple. Why was it such a breakthrough to connect a falling apple with the faraway moon? Review the essential characteristics of gravity and learn why small asteroids and large planets have such different shapes.

33 min
Free Fall and Inertia

02: Free Fall and Inertia

Review three great discoveries by the "grandfather" of gravity research, Galileo Galilei. His most famous experiment may never have happened, but his principle of inertia, law of free fall, and principle of relativity are the basis for everything that comes later in the science of gravity-including key breakthroughs by Einstein.

29 min
Revolution in the Heavens

03: Revolution in the Heavens

Drawing on ideas and observations of Nicolaus Copernicus and Tycho Brahe, Johannes Kepler achieved a great insight about gravity by discovering three laws of planetary motion, relating to the mathematics of orbits. The cause of planetary motion, he determined, must lie in the sun.

28 min
Universal Gravitation

04: Universal Gravitation

See how Newton was able to finish Kepler's revolution by formulating the law of universal gravitation, which says that every object exerts an attractive force on every other object. Also explore Newton's related discovery of the three laws of motion, which underlie the science of mechanics.

28 min
The Art of Experiment

05: The Art of Experiment

Learn how distances in the solar system were first determined. Then chart Henry Cavendish's historic experiment that found the value of Newton's gravitational constant. Cavendish's work allows almost everything in the universe to be weighed. Then see a confirmation of the equivalence principle, which says that gravitational and inertial mass are identical.

30 min
Escape Velocity, Energy, and Rotation

06: Escape Velocity, Energy, and Rotation

Begin the first of several lectures that dig deeper into Newton's laws than Newton himself was able to go. In this lecture, apply the key concepts of energy and angular momentum to study how gravity affects motion. As an example, use simple algebra to calculate the escape velocity from Earth.

29 min
Stars in Their Courses-Orbital Mechanics

07: Stars in Their Courses-Orbital Mechanics

Newton was the first to realize that objects could, in theory, be sent into orbit around Earth. Explore how this works in practice, using the ideas of energy and angular momentum to study how satellites, moons, planets, and stars move through space.

29 min
What Are Tides? Earth and Beyond

08: What Are Tides? Earth and Beyond

Trace the origin of tides to the simple fact that gravity varies from point to point in space. This leads not just to the rise and fall of the ocean, but to the gradual slowing of Earth's rotation, Saturn's spectacular ring system, volcanoes on Jupiter's moon Io, and many other phenomena.

30 min
Nudge-Perturbations of Orbits

09: Nudge-Perturbations of Orbits

For the next three lectures, study the effects of gravity on the motions of more than two bodies. Here, see how even very small orbital changes-small perturbations-are significant. Such effects have revealed the presence of unknown planets, both in our own solar system and around other stars.

28 min
Resonance-Surprises in the Intricate Dance

10: Resonance-Surprises in the Intricate Dance

Resonance happens whenever a small periodic force produces a large effect on a periodic motion-for example, when you push a child on a swing. Learn how resonance due to gravitational interactions between three bodies can lead to amazing phenomena with planets, asteroids, and rings of planets.

29 min
The Million-Body Problem

11: The Million-Body Problem

Consider the problem of gravitational interactions between millions of bodies, such as the countless stars in a galaxy. Amazingly, mathematics can reveal useful information even in these complicated cases. Discover how the analysis of the motions of galaxies led to the prediction of dark matter.

32 min
The Billion-Year Battle

12: The Billion-Year Battle

Explore the physics of stars, which are balls of gas in a billion-year battle between the inward pull of gravity and the outward pressure produced by nuclear fusion. Follow this story to its ultimate finish-the triumph of gravity in massive stars that end their lives as black holes.

30 min
From Forces to Fields

13: From Forces to Fields

For the rest of the course, focus on the revolutionary view of gravitation launched by Albert Einstein. Review new ideas about fields that allowed physics to extend beyond Newtonian mechanics. Then see how Einstein modified Newton's laws and created the special theory of relativity.

31 min
The Falling Laboratory

14: The Falling Laboratory

Einstein focused on gravity in his general theory of relativity. Hear about his "happiest thought"-the realization that a man in free fall perceives gravity as zero. This simple insight resolved a mystery going all the way back to Newton and led Einstein to the startling discovery that gravity affects light and time.

31 min
Spacetime in Zero Gravity

15: Spacetime in Zero Gravity

In an influential interpretation of relativity, Einstein's former mathematics professor Hermann Minkowski reformulated the theory in terms of four-dimensional geometry, which he called spacetime. Learn how to plot events in this coordinate system in cases where gravity is zero.

29 min
Spacetime Tells Matter How to Move

16: Spacetime Tells Matter How to Move

See how gravity affects Minkowski's spacetime geometry, discovering that motion in a gravitational field follows the straightest path in curved spacetime. The curvature in spacetime is not caused by gravity; it is gravity. This startling idea is the essence of Einstein's general theory of relativity.

31 min
Matter Tells Spacetime How to Curve

17: Matter Tells Spacetime How to Curve

The curvature of spacetime depends upon matter-and tidal effects. In this lecture, see how ordinary tidal effects reveal a simplified form of Einstein's greatest discovery: the equation governing the curvature of spacetime by matter.

30 min
Light in Curved Spacetime

18: Light in Curved Spacetime

See how Einstein's general theory of relativity predicts the bending of light in a gravitational field, famously confirmed in 1919 by the British scientist Arthur Eddington. Learn how this phenomenon creates natural gravitational lenses-and how the bending of light reveals invisible matter in deep space.

30 min
Gravitomagnetism and Gravitational Waves

19: Gravitomagnetism and Gravitational Waves

The general theory of relativity predicts new phenomena of gravity analogous to those of electromagnetism. Discover how ultra-sensitive experiments have detected the gravitomagnetism of the Earth, and follow the search for elusive gravitational waves that travel through space.

31 min
Gravity's Horizon-Anatomy of a Black Hole

20: Gravity's Horizon-Anatomy of a Black Hole

Plunge into the subject of black holes, which are massive objects that have collapsed completely under their own gravity. Learn how black holes distort spacetime and explore the supermassive black holes that lie at the hearts of galaxies. Then ask: Are there such things as micro-black holes?

33 min
Which Universe Is Ours?

21: Which Universe Is Ours?

Investigate what Einstein called his "greatest mistake"-his rejection of his own theory's prediction that spacetime should be dynamic and evolving. Chart the work of a group of scientists, including Alexander Friedman, Georges Lemaître, and Edwin Hubble, who advanced the realization that our universe is expanding from an apparent big bang.

30 min
Cosmic Antigravity-Inflation and Dark Energy

22: Cosmic Antigravity-Inflation and Dark Energy

Using everything you've learned about gravity, investigate cosmic antigravity, starting with cosmic inflation, a phenomenon that exponentially increased the size of the universe during the big bang. Then, learn why dark matter cannot be made of ordinary protons and neutrons, and explore the recent discovery that the expansion of the universe is accelerating, powered by a mysterious dark energy inh...

32 min
The Force of Creation

23: The Force of Creation

Use a black hole to test the laws of thermodynamics, taking a deeper look at the capacity of gravity to pull matter together and increase entropy at the same time. Probe Stephen Hawking's most surprising discovery, and then learn that the same force that pulls the apple down and steers the stars in their courses is also nature's ultimate source of order and complexity.

29 min
The Next Revolution

24: The Next Revolution

Survey the greatest unsolved problem in theoretical physics: the search for a quantum theory of gravity. Examine string theory, loop quantum gravity, and also entropic gravity, which suggests a revolutionary link with thermodynamics. Close the course with a deepened appreciation for the connection between everyday features of gravity and the most exciting questions in contemporary physics and cosm...

32 min