Understanding Einstein: The Special Theory of Relativity に戻る

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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.

Mar 22, 2020

Thanks for helping me understand the Special Theory of Relativity, covered a lot of ground but repeated it so it really could sink in. Like your style and want to thank you for your assistance. Thanks

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by Lawrence K

•May 22, 2020

I really thoroughly enjoyed this course. I felt that Professor Lagerstrom is an excellent teacher who made the complex much easier to understand. I particularly liked the “class notes” and his philosophy of Festina lente - make haste slowly.

In college many years ago this whole subject was too mind bending for me to approach so my education when I other directions. It is nice that so many years later I could revisit that challenge a gain a better understanding. Thank you so much for that.

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 Douglas R

•Sep 08, 2017

Oddly, given subject matter, this is a very old school course - professor lecturing before a white board. Yet it works! I finally understand the Special Theory of Relativity and am convinced that time dilation and length contraction are real. Course is well paced. Outlines provided for taking notes for each session are very helpful. Quizzes and tests are appropriate. Highly recommend to anyone who has ever wondered if on might actually travel to another galaxy and return alive.

by Michael B

•Jan 18, 2018

This is truly one of the more interesting (and fun) courses at Coursera. The presenter takes the student step by step through the intricacies of understanding the special theory of relativity such that, even with a very limited background in math and physics, you will be able to appreciate the impact this theory had on scientific thinking back when it was published and how it, and its 'big brother, the general theory of relativity, shape scientific endeavors presently.

by Titas

•Jun 07, 2018

This course is the best place to learn the concepts of special relativity as a beginner. The instructor is awesome. Although he goes quite slow, it helps because the concepts in the latter part of the course are counter-intuitive and may need a bit of time to be understood. I would recommend this course to anyone who is interested in learning more about the principles of relativity. I hope to see a general relativity course taught by this professor soon!!!

by Carlos G

•Apr 02, 2018

A very thorough and complete explanation of the Special Relativity theory. Finally a really good pedagogical approach is used to explain to plain people like me concepts that are proven for more than a century but still a mystery for most. Having very important scientific concepts explained to our society can mitigate the terrible challenges we shall confront in the coming decades.

Thank you very much to Stanford University and specially to Dr Lagerstrom.

by Patrick F

•Sep 07, 2017

It is amazing to have access to such an interesting, well taught class through this free app. Prfessor Lagerstrom takes material that is often considered extremely difficult and explains it in such clear and concise terms that it can be understood by just about anyone. The required math is not much beyond basiic algebra and you can come away with a much deeper understanding of the way the universe works as well as a nice look at Einstein as a person.

by Thierry C

•Jun 22, 2020

It’s been like watching a good movie or reading an absorbing book; it ended too soon.

I'd say the course gives a large enough insight to the special theory of relativity with the right final touch on the general theory to complete the basic understanding, and maybe to get the audience hooked for the next release. I’ve taken the bait.

Finally a genuine thanks to the instructor Larry Randles Lagerstrom and his team for the contents and their dedication

by Charles H

•Aug 24, 2017

This was a very enjoyable and revealing course, covering what at first may appear to be a somewhat impenetrable subject. But the step by step approach and sensible progression of topics made the subject matter easily understandable, and the obtaining of that understanding a joyful and insightful experience. It can't be easy to teach such a course to camera, so big thanks to Larry Randells Lagerstrom.... he definitely deserves a strong lager!!

by Paresh V

•May 04, 2017

This was not just a course, but an experience in learning. The professor took us through a journey of learning about a topic very difficult understand, and patiently led us through the learning experience with right amount of maths and excellent use of examples, quotes etc., to keep the interest alive all through. I wonder if some such course on General Theory of Relativity can be there, even if that is perhaps more mathematical.

by Maria E H

•May 10, 2017

This course is superb! The professor explains complicated concepts and mathematical equations in the simplest manner possible. I learned a ton!

Note: the course keeps mathematics at a minimum, so if you want a quantitative approach to the Special Theory of Relativity, this is not for you. However, even if you are looking for a quantitative approach, this course will enhance your conceptual understanding of Einstein's theory.

by Бенуа М

•Oct 03, 2019

An amazingly clear overview of the matter. The professor takes it step-by-step, religiously. I succeeded the course, but now I think I want to do it again, taking more notes, doing all the homework (which I did none). Don't rush! It's fundamentally important for your understanding of the universe.

As a reading, I recommend "A Journey into Gravity and Spacetime", by John A. Wheeler. Perfect further reading for this course.

by Jared F

•Sep 15, 2017

Until I took this thoughtful, extremely well organized course, I could not get my head around many of the weird concepts in Einstein's Special Theory of Relativity, no matter how much I read about it. Prof. Lagerstrom is to be congratulated for the very excellent, logical manner in which he has taught this course. I would highly recommend this course to anyone seeking a great mental challenge and scientific curiosity.

by Remko O

•Jun 06, 2019

I seriously love this course. It gave me a lot of insight in the realistic world. I love the way it is explained, it could not have been better! Thank you so much! This is the first course I have ever done, and I think I will move on towards the General Theory of Relativity. So much thanks again! This course changed my life, positively. I'm more motivated than I ever was. You are doing a great job, I love it. -Remko

by Rodolfo R A A

•May 18, 2020

As a geologist engineer, this course showed me that no modern physics can be out of reach. We all can play with these ideas and get a solid understanding of them. Prof. Lagerstrom really made the most important points clear and I got a clear picture regarding the Special Theory of Relativity, among history of science and other stuff as well. Great, solid course of which I can only feel thankful to Prof. Lagerstrom.

by Maria M C

•Apr 29, 2018

Wonderful course that has opened so many doors of thought and knowledge. Thanks to the professor, Larry Randles Lagerstrom for his instruction and for bringing this amazing course of one of the greatest minds of all time to Coursera. My interest in physics has been piqued and i will continue to pursue a deeper understanding after this wonderful course. Thank you again to the professor and to the team at Coursera.

by Matthew F

•Aug 16, 2018

This is a very wonderful course. I really enjoyed it. The professor really shared the insight of having a struggle to understand will lead to an ennobling, enriched experience and how we can look at the big picture of what the universe is like and how this works. Understanding Einstein's Special Theory of Relativity really helped a lot (in context and some key concepts of space and time). Thank you professor.

by Fu-Cheng C

•May 23, 2020

The course is a beautiful marriage of history, humanity, and science. The pace is slow at first but picks up steadily. I never thought I would ever understand special relativity but thanks to Professor Lagerstrom's thorough explanations, I am now comfortable with the concept and see the world in a different light. I wish Professor Lagerstrom will eventually produce a similar course on general relativity.

by Anish K

•Mar 16, 2020

Amazing introductory Course for Special Relativity. Might be a bit too basic at times w.r.t to maths but hey!, it never hurts to listen to things for a second time. Will definitely recommend to anyone looking to get into higher level physics. Being a High School student myself, I learned a lot and thoroughly enjoyed it. Thanks a lot to Stanford and Prof for making education freely available to all.

by Moya H

•Aug 25, 2017

This course is engaging and interesting. The lecturer inspires you to learn and open your mind. The course itself can be hard in areas but if you stick with it, eventually you can work it out. There is a fair bit of algebra (which I never studied at school) but I still made it! I recommend this to anyone who wants to understand time and space and be drawn into the fantastic world of Einstein.

by Michel A

•Feb 28, 2020

After reading almost a lifetime books about the works and accomplishments of Einstein (not being a graduated scientist but huge fan of the topic), it is amazing to follow this this course and explore this world in a whole new sight. Fantastic stuff brought by the best instructor by far. I think I will start all over again. A lot is much more obvious now, or is it? Triple A+ for Larry. Thank you.

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 Jerry M

•Feb 27, 2017

A very thoroughly planned and executed course. It is obvious that the professor/Stanford spent a significant amount of time in determining the content/videos and the supporting quizzes and tests. Ideally suited for those with basic math skills up through algebra but not calculus. The inclusion of the motivating historical aspects is something that is not always covered in similar courses.

by luiz f g

•Jul 29, 2017

This is a greate course. Many thanks to all involved in providing such a very well elaborated course, modeling such a complex subject in a "simplified" version that is reachable by many people that would be disencouraged by maths and formulas intrinsic to the subject. Thanks also to Professor LArry by making the course even more entusiastic and attractive by given many examples along it.

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.