This is hands down the best introduction to the Special Theory of Relativity I have ever found. The instructor really explains everything so lucidly that even lay audiences without a strong math or physics background can grasp the theory. I would really love to see a course by this instructor on the General Theory of Relativity as well!

This course met 120% my expectations. Prof. Lagestrom has extraordinary teaching skills and assembled a course that allows students to slowly build fundamental blocks of knowledge. I look forward to keep learning with him if any other course is available. It has been a truly memorable experience. Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Thank you to Dr. Randles for teaching us this excellent course, for preparing all the lessons in a simple manner, he makes us see the theory easy. And thank you for teaching us not only the scientist, but also the human person through Einstein quotes.

Try to become not a person of success, but try rather to become a person of value

Great course. Easy to follow and to understand. Also a great compliment to the professor for explaining the material in a clear and easy to follow manner. I have now a clear understanding of the underlying concepts of the special theory of relativity. I would really like to see a similar course on the general theory of relativity.

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.

Incredible. Now I can say to have learned the basics of relativity. A step by step approach with some math guided me through the field. Before the course I was simply aware of the major points of the theory accepting its conclusion bona fide. Now I got it. Thanks a lot professor. There is a reason why you teach at Stanford

Such a great course with a superb instructor! The pacing of the course, in my opinion, was perfect. We certainly made haste, but we made haste slowly. Things were explained in a way, that the greater understanding of the math and "philosophy" behind it came together in a beautiful manner. So happy with taking this course!

Excelente habilidad para la docencia mezclando el contexto histórico de uno de los más grandes avances de la ciencia moderna con las bases matemáticas y físicas necesarias para comprender la Teoría de la Relatividad Especial, de una manera didáctica y para todo público, no sólo para personas entendidas en física avanzada.

Thank you Professor, your lecture is very interesting, and it is quite helpful to learn physics with a little history. I found that there are some mistakes in the subtitle, but it is not significant and I think I can understand it according to the context. Really impressive course, I hope I can see you in other courses.

“One should not pursue goals that are easily achieved. One must develop an instinct for what one can just barely achieve through one’s greatest efforts.”

― Albert Einstein

The course was varied and motivating in its structure. Professor Larry Lagerstrom is an outstanding personality. It was a very enriching experience.

Excellent course. I feel I gained some insight into the core concepts of special relativity. I took to heart the "festina lente" ethos exposed early in the course by the instructor. Larry Lagerstrom is a fantastic teacher, he has the ability to explain often complex material in a way to that makes it understandable.

This course offers an excellent and intuitive entry to the special theory of relativity. In my eyes, it is suited for everyone being fascinated by space-time and the "weirdness" of our universe and at the same time wants to dig a little deeper into the physical and mathematical framework of special relativity.

I thoroughly enjoyed the course and it was informative and we'll presented. I think I will miss listening about time. For me its been much therapeutic. It challenges my brain to even visualize these concepts and hence I can spend as much time studying it. The presenter knows his stuff and like his simplicity.

An outstanding course, it was what I was looking for to get a good understanding of the topic.

Really good course progression, well explained concepts. I am definitely happy and "1000%" satisfied with this amazing course, Professor Lagerstrom is simply amazing and he definitely deserves a strong acclamation!!

It was incredibly interesting and enjoyable experience,the course instructor was fabulous and i could understand many mind baffling information with a surprising ease.I am looking forward for stanford university's course on the general theory of relativity and i hope that it is taught by the same professor.

Great Course. I wish there would me more courses like this in other topics like general theory of relativity. Discussion forum is very active. Mentors are available to clarify any topics. Videos are a bit slow though, but you can always fast forward. I am grateful to the course instructor of this course.

Absolutely wonderful course. I am grateful to Mr. Lagerstrom for making haste slowly in his explanations during the lectures. Really helped to cement the concepts and the math into the mind. This course comes with my highest recommendation to anyone who is interested in learning about Special Relativity.

Excellent course which explores every concept of the theory deeply. It is a very interesting experience to see the theory build up little by little from scratch.

The discussions forums are great with active mentors.

I highly recommend it to anyone interested in science and willing to take some time out!

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!!

Dr. Lagerstrom has done a beautiful job in giving an in depth view of the matter in a very accessible fashion. A complex phenomenon is explained in all its detail in a very nice blend of geometry and elementary algebra, The problem sets and the quizzes make you think. I fully recommend this course.

This course is amazing!! Even a person without physics and mathematics background can understand it. Its also very help for physics undergrad students like myself. The professor explains every concept patiently and refreshes the concept before going to the next one. Every one must try this course!!

I had been trying to understand this concept from a long time and could never understood it.

This is the best course i had done and the Instructor Sir in awesome, just awesome.

I will let my daughter also take this course.

Would require a signed photo autograph of Larry Randles Lagerstrom , Please.

Dieser Kurs war für mich als Neueinsteigerin genau richtig. Es wurde sehr verständliches Englisch gesprochen und die Begleitmaterialien waren ausführlich und hilfreich. Im Forum wurde auf Fragen immer sofort ausführlich geantwortet. Mir hat der Kurs sehr gefallen und ich habe viel gelernt.

This is the most interesting topic I've ever learned in my life.Tons*C² of thanks to professor Lagerstrom who explained everything clearly and patiently and thanks to Stanford university too. I would so recommend this course to my fellow science enthusiasts and thanks to you too coursera.

Very well designed course with good content and information. Also takes a methodical approach to teaching and is easy to follow and get a good understanding of the underlying concepts behind special theory of relativity with context around how it was conceived and developed by Einstein.