R​andy Lagerstrom is an engaging teacher with a comprehensive grasp of his subject. He is a master teacher who can break down complex ideas into understandable concepts without sacrificing the whole. I would highly recommend any course he would teach

An amazing course for all those who wants to know more and more about Einstein´s thoughts and his Special Theory of Relativity. Amazing didatic of Stanford´s professor Larry Randles Lagerstrom. Very thankful for all the content and knowledge acquired.

I highly recommend this excellent, well-organized course on the Special Theory of Relativity. It is a great introduction to the topic, taught by a very experienced professor. There is so much more to learn and this course inspires me to dig deeper.

Excellent course. Great lectures, perfect for anyone with a minimum background on physics. No need to have any previous knowledge of the Special Theory of Relativity. Very well explained and well designed exercises. Top experience! 100% recommended!

Really great Course: though Professor Lagestrom explanations can sometimes feel being too long, he is always very clear. I really enjoyed this Course, and wish there would bea similar follow-up course on the topic of the General Theory of Relativity

Very thorough and modern explanation of the basic principles of SR. Modern in the sense that math is not emphasized to start getting the correct intuition. Thank you Prof. Holstrom and thank you to the staff for answering all questions so promptly.

A fantastic course by a fantastic teacher. Enthusiastic and interesting and most importantly clearly explaining the subject matter. I wouldn't hesitate to recommend this course to anyone and to take any other course run by Larry Randles Lagerstrom.

Excellent Course offered by Stanford, taught intricately by Professor Lagerstrom. Structured very well and comprehensive to a novice, covering all the base concepts of Special Relativity, with math easily understood by a high school level student.

Really it was a great course, explained with such good examples and out teacher " just hats off to him". Sir, you were really very kind and intelligent. thank you for letting us understand the fundamentals of Einstein Special theory of Relativity.

Very clear presentation of the Physics involved. Can be followed without mathematical background. As a suggested reading I would add "L'évolution des idées en Physique" from Einstein / Infeld"Let's go now for a lecture in general relativity!

Professor was very thorough in explaining the various aspects regarding the Special Theory of Relativity. The tests and problem sets were well related to what I learned in the videos, and helped me apply what I learned. A terrific course.

Intresting course and excellent professor and never ever had this excellent online class valuable and worth class and I'm become more endustatic in physics and thanks for all the guys behind this project and special thanks for professor

The content and quality of the course is amazing. I am very satisfied with the course director's knowledge, his ability to convey that knowledge and I now have a much better understanding of the Special Theory of Relativity. Five stars!

It's a brilliant course. Although I knew nothing about this topics, even as regard as basic Physics, I understood everything. There are simple explanations and a very didactic diagramming. This was an enriching and enjoyable experience.

Thanks for this course. And I am overwhelmed by the fact that you're giving away these course materials for free. Of course, I'll buy a few important courses for I'll be asked for a certificate. Anyways, thanks a lot team course era. :)

One of the best courses I have ever seen. With only little knowledge in physics and math, it is possible to follow the course until the end. A lot of the theory is visualized in pictures and graphs to make it even better to understand.

Larry was a brilliant teacher and explained everything very clearly. He took the necessary time on each aspect of the course and made sure that the 'foundations' were laid to properly understand Einstein's Special Theory of Relativity.

A very clear and well thought-out presentation of a tricky subject. At 75 I feared my speed of comprehension wouldn't be up to it. Thanks to Larry for helping me get up to speed and for making the experience so unexpectedly enjoyable!

I have never ever had a better course than this. As a person with a little background in physical scineces, I am capable of asking important questions about the universe. Thank you Prof. Lagerstrom for your unforgettable contribution.

I got a more in-depth understanding of how special relativity acutally works and I was able to completely clear the major doubts that i had about the various pseudo paradoxes that arised out of this theory such as the twins paradox.

This course is really good for the very beginners who have started studying physics. The way it has been presented is a very easy and lucid one. Although I would have like the optional problems to have much more harder problems.

Great teacher. Clear message. Goes slowly though the material and highlights key concepts few times to make them stay. If someone does not want slow pace can always jump ahead as course structure is well organized and described.

Amazing. Thank you so much. Mr Larry Randles Lagerstrom is the best teacher ever. I am not a physicist, but the subject of special relativity has always interested me, and no one has presented it in such a clear way. Thank you.

O curso é excelente. O conteúdo é muito bem dividido de modo que o aprendizado é gradual e consistente. O professor é bom, consegue dar bons exemplos e contextualiza bem a matéria. O aspecto histórico é extremamente agradável.

I thoroughly enjoyed this course and couldn’t recommend it enough. The lecturer is terrific at explaining complex topics and his Festina Lente approach was highly suitable for teaching this subject matter at a beginner level.