Black Holes, Tides, and Curved Spacetime

De: Benjamin Schumacher, The Great Courses

Narrado por: Benjamin Schumacher

It all started with Newton’s apple. Or did it? Gravity controls everything from the falling of an apple to the rising of ocean’s tides to the motions of the heavens above. If you’ve ever wondered how this most puzzling force works across our entire universe, you will be delighted by this 24-part course that is accessible to any curious person, regardless of your science education. No other product on the market presents the subject of gravity in as much detail as this course, which will follow the past 400 years of research and experimentation in the field.

Your guide is Professor Schumacher, an award-winning educator, prominent theoretical physicist, and protégé of John Archibald Wheeler, the distinguished gravity theorist who first coined the term “black hole”.

• Explore the intriguing features of gravity, including: why a hammer does not fall faster than a feather (neglecting air resistance, of course!); how astronauts float in space when they are still within reach of Earth’s gravitational pull; and how gravity shapes the four-dimensional fabric of the universe.

• Become immersed in the fascinating study of gravity, experiencing the scientific breakthroughs alongside the great minds of physics: Galileo, Newton, Cavendish, Einstein, Hubble, Hawking, and more.

• Examine a recent discovery: that the expansion of our universe is accelerating due to an as-yet-unexplained cosmic antigravity known as dark energy.

• Delve into the Holy Grail of contemporary physics: the search for a theory that encompasses both gravity, which extends its reach across the cosmos, and quantum mechanics, which governs events at the smallest possible scale.

In Black Holes, Tides, and Curved Spacetime, you will travel to the very edges of modern physics to explore several revolutionary theories and discover that physics is just as exciting today as it was when Newton sat by that fateful apple tree.

PLEASE NOTE: When you purchase this title, the accompanying PDF will be available in your Audible Library along with the audio.

©2013 The Great Courses (P)2013 The Teaching Company, LLC

Engaging

Dr. Schumacher is clearly an expert. His knowledge is thorough and he seemed to be sincerely in love with physics. His presentation was animated and easy for this non-scientist to understand. Paraphrasing Feynman, these lectures show a thorough understanding of the subject because the content and principles can be understood by a first-year student - or maybe even a precocious child. He was so engaging, I wish I could start college again and major in physics.

Excellent Lectures about Gravity (Physics)

I just finished listened to these lecture series by Prof Benjamin Schumacher. I enjoyed learning about the history of our understanding about gravity. While I am familiar with the physics from classical mechanics, I was glad to go into detail about the physics from general relativity. The included pdf (220 pages) was a nice addition to the lectures. Here are some of my favorite quotes:
“But a solid body held together by gravity, by a long-range attractive force between all masses, will tend to pull itself into a spherical shape. Every piece of the body is attracted to every other, even the pieces on the other side. And a sphere is the shape that minimizes the distances between all the pieces. The more massive the body, the stronger this tendency will be. But gravity is so weak that a solid body has to be many hundreds or even a thousand kilometers across before this sphere-making proclivity of gravity will win out.”
In explaining the tidal effect, Prof Schumacher instructs students to “imagine the fall of a spherical cloud of apples.” And then with a simple explanation from Newton’s law of universal gravitation he explains the mysterious force that squeezes in from the sides and also stretches out along the up-and-down direction the cloud as it falls freely.
Many lectures are ended with a preview or teaser of the next lecture, followed by a kind remark to the students, “And I’ll see you then.” I can imagine Prof Schumacher given this remark in the university.
The questions and answers on the pdf document are well though-out. The most thought-provoking question to me was Question 1 of Lecture 9: “How can we tell whether a piece of anomalous data requires us to change our basic theory?”
I recommend this lecture series to anyone interested in understanding gravity, tides, and black holes. I’m sure a future recording of the same lectures will be updated to include the important LIGO discovery in 2017.

Great book!

Loved the content, the performance and all of it.

I was happy to hear about entropic gravity.

an excellent introduction to the subject

The speaker presents physics and cosmology in an accessible way. It is entertaining and educational.

It’s so fantastic to learn from modern professors and experts

Loved the review on gravity and its associated formulas. I went into the lecture with certain questions about black holes and the speed of light. Everything with answered it felt like going to a university course, but there was no homework!

Absolutely riveting course

This course taught me so much from start to finish, Dr.Schumacher is a fantastic story teller and educator

Deep and with the math

I liked that it wasn’t just words- he goes through the equations and uses specific examples. It was much deeper than the normal class.

best physics lectures ever.

this guy is a genius communicator. if you are interested in physics, highly recommend. I often find popular science books a little too simplistic, or feel like the authors have some disdain for the readers. but not this course. I wish there was more.

Worth it

This was a very well put together book. I enjoyed the readers voice and the content was impressive. It was sophisticated enough that I really had to listen and think, but wasn't over the top dry or difficult to understand. Absolutely a wonderful book!

Fantastic

A great lecture series! Definitely worth your time. Going to listen to it again soon for sure.