Understanding Einstein: The Special Theory of Relativity に戻る

4.9

1,524件の評価

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474件のレビュー

In this course we will seek to “understand Einstein,” especially focusing on the special theory of relativity that Albert Einstein, as a twenty-six year old patent clerk, introduced in his “miracle year” of 1905. Our goal will be to go behind the myth-making and beyond the popularized presentations of relativity in order to gain a deeper understanding of both Einstein the person and the concepts, predictions, and strange paradoxes of his theory. Some of the questions we will address include: How did Einstein come up with his ideas? What was the nature of his genius? What is the meaning of relativity? What’s “special” about the special theory of relativity? Why did the theory initially seem to be dead on arrival? What does it mean to say that time is the “fourth dimension”? Can time actually run more slowly for one person than another, and the size of things change depending on their velocity? Is time travel possible, and if so, how? Why can’t things travel faster than the speed of light? Is it possible to travel to the center of the galaxy and return in one lifetime? Is there any evidence that definitively confirms the theory, or is it mainly speculation? Why didn’t Einstein win the Nobel Prize for the theory of relativity?
About the instructor: Dr. Larry Lagerstrom is the Director of Academic Programs at Stanford University’s Center for Professional Development, which offers graduate certificates in subjects such as artificial intelligence, cyber security, data mining, nanotechnology, innovation, and management science. He holds degrees in physics, mathematics, and the history of science, has published a book and a TED Ed video on "Young Einstein: From the Doxerl Affair to the Miracle Year," and has had over 30,000 students worldwide enroll in his online course on the special theory of relativity (this course!)....

Jun 23, 2017

This course is very comprehensive and well prepared material for understanding the Special Theory of Relativity. Larry (the instructor) is very expert and has broad knowledge in explaining the course.

Aug 15, 2019

Hats off to the professor for being able to explain such mind-boggling concepts about the very nature of existence in an entertaining and intuitive way. One of my favorite courses on Coursera by far!

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by William M

•Jan 03, 2018

this is an excellent and interesting introduction to the subject

by Fernando A P S

•Apr 02, 2017

Perfectly explained. Love the teacher.

by VJM P

•Feb 05, 2017

This course helped me understanding many concepts of The Special Theory of Relativity. I recommend it particularly to high school students. Thank you very much to the teacher and all that contributed for that job.

by Walid H

•Feb 27, 2018

Excellent course.

by Tun L A

•Sep 06, 2017

Excellent and most complete course concerning The Special Theory of Relativity.

by Robert C C

•May 22, 2018

Excellent course. The instructor did a wonderful job, using a white board and simple props. He made it interesting and made these complex principles understandable. I enjoyed the experience.

by Xin H

•Jan 21, 2017

Professor Lagerstrom takes it slow to approach the theory, making it available to anyone with very basic math skills. While the equations are important, building the mental model around the strange world is way more essential to comprehending the special theory of relativity, and that is where this course shines. Professor Lagerstrom will look at the same problem in many different angles, cross referencing between them constantly, making sure the fundamentals of the theory sinks in.

by Deleted A

•Feb 05, 2017

This is one of best courses I have ever taken. Professor Lagerstrom did an outstanding job in this clear,consistent and careful introduction to what is arguably one of the most revolutionary theories of all time. I am taking the 5 stars and multiplying by a lorentz factor of 1.2 to achieve 6 stars!!

by Venkataraman K

•Dec 29, 2016

Very methodical & lucid way of explaining the concepts. Understanding of Special Theory of Relativity made relatively easy, pun intended! Thank you Professor...

by Apostolos C

•Nov 12, 2016

Excellent, "accessible" lectures.

by Elz d B

•Jun 20, 2017

Very well taught! Clear explanations and very interesting subject.

by narendra p

•Feb 06, 2017

course well organised. nice note preparation and hand outs.

by ZHAO Y

•Mar 05, 2017

This is the first course I ever finished on coursera! Thanks to Prof. Lagerstrom for making the course so easy and engaging for people with any level of maths and physics knowledge to follow and pick up. I've really enjoyed the whole journey and gained knowledge about this universe. It's definitely worth recommending to anyone who's interested to know more about the world around us.

by Abhijeet G

•Oct 31, 2016

Yo

by Bee_r

•Mar 27, 2017

Amazing，thanks very much for your professional and responsible in teaching.

I am always having the curiosity about Einstein,so i hope maybe someday you can give us the curriculum on his general theory of relativity.

Thanks again for all the courses i've learned from your teaching.

by Kishore R

•May 24, 2017

This course is well laid out and planned. The professor goes through step by step and makes it very easy to understand a very difficult and non-intuitive subject. The qualitative explanations are excellent in giving a sense of what the equations mean.

All in all, an excellent course. Thank you very much for making this available.

by Wallace d S C

•Apr 24, 2018

I can't stress enough how good this course is. It's the best course i've ever taken in any subject. It's really impressive how much energy, thought, patience, care was put here. I'm deeply thankful for this. You guys made me so happy. Almost everything someone need to know about STR is here. And the teacher... maybe my favourite physics teacher ever. This guy is the golden standard of teaching.

by abhijit c

•Feb 17, 2017

I loved this course.

by Ayron D

•Mar 22, 2017

I really enjoyed learning about how light and frames of reference can affect time and length, and what consequences these results have. It was a well outlined and explained course.

by sueg

•Dec 21, 2016

This course is really brilliant, Professor Lagerstrom ( I hope I have spelt the name correctly ) really knows the subject, a superb lecturer.

by Justin L

•Apr 25, 2017

This course was truly an excellent way to learn about Einstein's Special Theory of Relativity. The content covered most of the main aspects of Special Relativity, and the instructor did a top notch job of explaining how the various aspects of the theory are derived and many implications of the Theory. The maths involved in this course is no more than high-school level algebra with a few tricks, and as such the course should be within most people's reach with a bit of effort. Mind you, the concepts themselves are somewhat counter-intuitive, so be prepared to think a lot about the implications. However, all that being said, I highly recommend this course! It is a very well presented and accessible way to start to grasp Einstein's most profound work in his "miracle year" of 1905.

by JAMES L D

•Jan 24, 2017

A great exercise in thinking.

by Dalius G

•May 03, 2018

Simple, objective, informative. Amazing course, thanks Coursera !

by Marta F

•Jul 21, 2017

Brilliant. Fantastic teacher. And I'm not good at maths at all but I came away with quite a respectable understanding of the underlying notions of Special Relativity which is exactly what I was looking for.

by Ben P

•Feb 16, 2017

This fascinating course presented by a historian of science covers not just the basics of special relativity but the historical context as well. The lecturer starts off each week with some Einstein quotes and goes to great depths to explain the basic concepts at a level that is accessible to students with minimal experience of maths and physics. The concepts are firmly drilled in with plenty of optional quizzes after each mini-topic, and a summary video at the end of each week. The lectures are long but anyone short on time has the option to go straight to the weekly summary/quiz, and/or play videos at up to 2x speed (especially in weeks 2 and 3).

The main highlight for me was the explanation of the famous Twins Paradox and other related paradoxes which are resolved by understanding frames of reference and the relativity of simultaneity. Another bonus was an explanation of the bending of light by gravity through a simple thought experiment involving an accelerated elevator.

Some important topics not covered in the course, or only hinted at, are: treatment of accelerated reference frames (required to derive the relativistic rocket equations), relativistic momentum and kinetic energy (required to calculate the rocket fuel required) and relativistic energy (used to derive Einstein's mass-energy equivalence formula).

Overall I highly recommend the course to anyone with the time and inclination.

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