1 Eang Seang Hor, February 1, 2009 at 10:15 a.m.:

Dear Sir
He teach very good. I am really interested with his teaching.
I hope that I can see the other subject of his teaching in physics. I really suprive that I can improve my physics through out of the Internet.
Thank you so much!

Seang Hor

2 R Dixit, February 21, 2009 at 2:45 p.m.:

Hon'ble Professor is doing great job.he is spreading knowledge though the very best medium internet.It is very useful and interesting to views these lecture.It is my firm believe that some courses which are assumed to be tough for understanding perspective , would benefit thousands and millions of students in coming days to learn the concepts.It will also popularize physics among students in some countries where there is no good infrastructure and proper faculty.
The Pedagogy of 'Young Professor' is amazing and quite inspirational for others Gurus to have such energy level.
Last but not least, this initiative is definitely giving the right direction of learning though Internet.

Thanks And Best Wishes
R Dixit

3 asif, February 23, 2009 at 5:46 p.m.:

sir lectures are very good iam iit profesor in hyderabad india thank u please let me know that THE VIDEO LECTURES ARE AVAILABLE SEPARATELY.

4 MUHAMMAD MOAZZAM ZUBAIR, February 25, 2009 at 6:14 p.m.:

Many feelings; 3 words: I am speechless....!

R&D Scholar, CEO & GM T&M COMPLEX OF ENTREPRENEURS, AN ENTRPRISE IN lAHORE, PAKISTAN, working with research interests in Science Education........

5 Lior, March 11, 2009 at 11:56 p.m.:

"Making physics simple" should be the title of each video.

Apart from being crystal clear and easy to understand, he makes the videos dangerously intriguing.

6 Tuhin Malik, March 30, 2009 at 5:09 p.m.:

This is a very usefull web site.

i am a student of Scottish Church College. kolkata. B.Sc Phyics Hons.

7 KGK Murthy, April 3, 2009 at 2:25 p.m.:

It is very very interesting that PHYSICS can be taught this way. The confidence Lewin expresses in each topic is excellent and deserves highest regards. I appreciate the organisers of this opencourse ware a grand success and the students of the world a good time with the lectures

8 Kuta, April 11, 2009 at 4:20 a.m.:

It is immensely interesting, I feel enlightened! Thank you Professor and MIT.

9 YK Maheshwari, April 11, 2009 at 6:57 a.m.:

Prof Walter Lewin has set a benchmark in physics teaching.
His concept explainations, drawing meticulously on the board, taking thru question and answers, sometimes when experiment fails- explaining so that what ever he does can be emulated by people.

Everything is so live in the classroom. At the same time the best professor of MIT can be seen in remote corner of the world without any travel.

Remarkable feat by all means.

10 Giancarlo, April 13, 2009 at 3:58 p.m.:

Wow, the physics with you is so simple. I live in Italy and here there aren't professor so good.

Thank you.

11 asif zaman, April 15, 2009 at 11:15 a.m.:

sir i m realy inspired the way sir Lewin is teaching physics. sir can i get a cd of these lectures.thanks.

12 Dr.Yousefi, April 24, 2009 at 3:22 a.m.:

Just i can say its very nice and very good lecture.
He can teach very good physics concept.
Best Wishes for him
H.R.Yousefi

13 dean schunk, April 29, 2009 at 7:23 p.m.:

these are the cooles viedos ever

14 landon kistler, April 30, 2009 at 6:58 p.m.:

this are ids

15 hephaestuschou, May 1, 2009 at 4:27 p.m.:

Very good

16 Mundu Mustafa, June 12, 2009 at 5:59 p.m.:

Prof. has made me enjoy physics the more, thanx.

17 Tuguldur, June 22, 2009 at 10:16 p.m.:

I always remember his adventure in X-ray Astronomy everytime when I think about neutron stars.

18 sahar abdeen, June 30, 2009 at 10:29 a.m.:

Inspite of the lecture subject seems primerly, but i understood it by differnent way, i felt that i am understanding it for the first time!!!
Thank you very much Mr.Lewin.

19 zubair khan, July 9, 2009 at 12:59 p.m.:

the great professor in the world i think in physics because he teach the and then explain it in a very formal way to get help from experimental point ofview and this is the thing which is very benefical for those student who are in high school and when he will get knowledge from it so may be they will be the great scientist of the world because the physics is the subject in which we observe thing and to struggle to create it if they will watch these type of experiment which clear the concept behind the obervation

20 Simon Beaumont, July 23, 2009 at 10:50 p.m.:

Brilliant! - having been captivated by the first lecture I enjoyed the entire course: never was mechanics more visceral, accessible and important. The first and last lectures are an inspiration for anyone. The course is the ground floor in any physics education. Sincere congratulations to Walter Lewin: his sincerity and passion as a teacher and the love of his subject are palpable even across the internet. What a privilege to join this class at MIT. Many thanks to all concerned for sharing this with the world.

21 rajeev, August 1, 2009 at 9:24 p.m.:

Wow. mesmerising lectures by Prof. He teaches with such a simplicity and beauty. the very fundamental laws of physics are
extended and explored. Thanks Professer!!..kind regards

22 Shashank S. Jha, August 23, 2009 at 6:40 p.m.:

Wow....excellent lecture....
I can now able to understand the things conceptually with the help of the lectures....

23 Alessandro Abbati, September 29, 2009 at 8:59 a.m.:

Thank you so much for these videos, I am about to purchase the book to go along with these lectures so I can maximize my studies and learn all of this valuable information. I hope to someday be a student at MIT, and perhaps I will be in your class.

24 JOON CHO, October 5, 2009 at 4:40 p.m.:

I will attend to MIT next year, so see ya there guys.

It was excellent lecture!!

Thank you so much !!

25 ARMANDO TOMAS, November 27, 2009 at 4:47 a.m.:

Very impressive...I hope I can meet him (professor) in person and listen to his lectures in person if possible...

26 SAAHIL, November 30, 2009 at 5:53 p.m.:

Can any body tell me that either it is undergraduate physics or A-level physics that MIT has launched..??? Please tell me .. i will be very thankful all of u if u will tell me about this..???

27 Manish, December 7, 2009 at 7:58 a.m.:

I'TS OBVIOUSLY UNDERGRADUATE PHYSICS.CAN ANYONE TELL ME THE NAME OF THE BOOK YOU PPL ARE REFERRING. HERE

28 Kehila Yehuda Salcedo, January 4, 2010 at 1:42 p.m.:

Mi completo agradecimiento a usted profesor!
La verdad es que sus lecturas han cambiado TOTALMENTE la manera en la que apreciaba la física, soy una joven estudiante en México de 19 años! a la que el ver su trabajo, me ha impulsado a continuar con mi meta de ser una investigadora, ser como ud :) ... !!
Ahora, esta página y la de sus otros cursos forman parte de "mis favoritos" en el buscador!!
¡Gracias por compartir su trabajo!

29 yilo, January 6, 2010 at 2:25 p.m.:

His lecture are amazing and legendary.Thanks to him my understanding of physics increased enormously.I am a physic stundent of t he Johannes-gutenberg-university in Mainz.
Greeting from Germany

30 Dione, January 8, 2010 at 1:37 p.m.:

I am a student of brazil.Very good all the material of lecture.

31 Zhou WJ, January 25, 2010 at 11:31 a.m.:

Very good all the material of lecture.I like the professor.

32 cpsingh, February 27, 2010 at 8:26 p.m.:

Dear sir,
I would like to tell you that kinetic energy is not conserved during elastic collision , though initial and final kinetic energy is same. During impact some part of k.e. is converted into deformation p.e, therefore kinetic energy is conserved is not correct.

when a ball is dropped on a floor, after elastic collision, speed of ball is reversed not velocity of ball,velocity is vector u know very well.
cpsingh

33 P K Singh, March 6, 2010 at 4:49 a.m.:

I am an Electrical Engineer from India and after going through a few vedio lectures I feel so delighted on the commendable work done by Prof Walter. Really it is a new experience and Physics has become highly interesting. I shall go through all the lectures and try to pass on the knowledge to the younger generation of today.

Hats off to Prof. Walter

34 Vlad, March 24, 2010 at 9:26 p.m.:

Mr. Lewin, you are great! Thank you!

35 Jignesh, April 3, 2010 at 5:36 p.m.:

I am a 2nd year Mechanical Engineering student in London and this videos are the ultimate help. All lecturers should learn by example from Prof Walter. The fact that he shows everything by real life example makes it even more intuitive.

36 jignesh hirpara, April 6, 2010 at 8:01 a.m.:

it is amazing to make concepts visible to the learner and sir is doing wonderful work a his kindness is reflected in the view from the people. nice to see the tricks to transform the concept in practical manner. but i think that needs lot of innovation and freedom too. i would like to have help, if you give insight to implement at lower grades also, i will be very happy if you help in that and if such activities are going on there please provide those videos also on net.... thanking you..

37 pamir ghimire, April 7, 2010 at 6:16 p.m.:

for the first time in my life, i understood waves! hats off to sie Lewin. with greatest honors from my side, u r the best physics 'teacher' ever.

38 nadher, April 14, 2010 at 8:06 p.m.:

thank you so much

39 tomsah, May 8, 2010 at 1:25 p.m.:

I like the way he teach, i hope iam one of his studen. proof Lewin he is the best physics teacher

40 reza, May 11, 2010 at 12:11 p.m.:

Hi.
i'm very happy & Surprised.
very thank.
verrrrrrrrrrrrrrrrrrrrrrrry

41 Ahmed Gamal, May 15, 2010 at 10:58 p.m.:

Prof. Walter Lewin

- I want to till you that you are my Best Teacher, And your effort is the Best i have ever seen, Many thanks to you.

42 tarun trivedi, July 17, 2010 at 4 a.m.:

Dear Sir,

It was demonstration of excellence in teaching . Skill is the most appropriate word which you have personified. I showed your lecture on "spring and pendulum" to my son and he was fascinated. Best wishes

43 Agustina Aliaga, July 21, 2010 at 12:08 a.m.:

Brilliant! Amazing, as all lessons should be. If i would have had the opportunity of receiving lessons from motivating teachers like him i would have chosen to study physics before! Best wishes from Argentina, thanks so much for this opportunity!

44 clifford, August 3, 2010 at 10:56 a.m.:

fantastic,,,awesome...i cant even find a word on this earth to describe how good this professor is..im a mechanical engineer and i love this

45 Erin, August 9, 2010 at 12:53 p.m.:

I'm a student from China.Thanks a lot for your effort.I've learned a lot from the courses.Thank you.

46 Imran Siddiqui, August 21, 2010 at 10:58 a.m.:

I boost up with your lectures videos.
I started loving physics.
thank you for your ignition.

47 meftun, September 4, 2010 at 1:43 a.m.:

Special thanks to Mr. Lewin from Turkey.

He is one of the best teacher and best person I have ever seen. I really wish to see him and shake his hand.

These lectures are smilar to which I studied at my University. So I can make repetition of the lectures that I dealt with before, with the help of Mr. Lewin and MIT.

48 Abhay Kushwaha, September 17, 2010 at 1:59 a.m.:

Respected sir,
I am in resonance of your teaching,the best thing of your teaching is the way of teaching.I gone through all lectures delivered on Mechanics.

49 MAHMOUD Benaouda, October 16, 2010 at 5:08 p.m.:

In spite of my week english, i find the lectures of Pr Lewin very easy to understand. Althought, the use of laboratory materiel in these lectures help very well, Pr. Lewin is very good teacher.

Question: Is there any translate of the lectures transcript in french or arabic, and can we use them freely ...

Thanks dear PROFESSOR and also MIT for this opportunities ... Salam

50 ganapathi, October 26, 2010 at 12:50 p.m.:

material ver very good sir
i like your class its really wonderful

51 Adrian Arce, November 6, 2010 at 9:36 p.m.:

Prof Lewin you are a genius!! You make physics so easy to understand...Thanks very much Prof Lewin from Ecuador..

52 Ernesto González, November 7, 2010 at 3:44 p.m.:

Dear profesor Lewin:

I have to say thanks for your precious and inspiring life and lectures.

53 Francis BENOIT, December 23, 2010 at 4:47 p.m.:

Dear Gee
Your experiments make physic so attractive and yourtalking show is catch by a non english motherlanguage like me.
I would like to have a teacher like you

54 hamed ghari, December 26, 2010 at 6:47 a.m.:

it was wonderful. really these videos stick physics in my brain lovely.i love physics now.only becouse of your videos

55 Amit Kumar, March 11, 2011 at 4:26 p.m.:

"I have learnt a lot from your lectures, I would like to thank Prof Lewin and MIT for their wonderful and noble contributions ".

Amit Kumar

Norway

56 Aljhon T. Matias, March 18, 2011 at 3 p.m.:

I love listening with Mr. prof, i can understand the course well, it is that, Physics is really a difficult subject, concepts, laws and how they interact with our daily live is really hard to explain...It is a very clear easy explanation of laws and concepts based on real experiments... I wish that i will have ateacher as great as him...

57 Siddharth Gupta, April 6, 2011 at 11:26 a.m.:

Mr Lewin,
You Rock You are the best Physics Teachers Its awesome to get to know someone like You MIT ROCKS!!!

58 Usama Anwar, April 23, 2011 at 1:40 p.m.:

Respected Sir,
I m a big fan and lover of MIT.I like Sir Walter's way of teaching very much.I downloaded his lecture but the problem is in downloaded video there is no transcript...CAN anybody help me please.???

59 Usama Anwar, April 23, 2011 at 1:41 p.m.:

Respected Sir,
I m a big fan and lover of MIT.I like Sir Walter's way of teaching very much.I downloaded his lecture but the problem is in downloaded video there is no transcript...CAN anybody help me please.???

60 Raghu ram s, September 10, 2011 at 3:34 a.m.:

dear sir,
i'm very fortunate to get such nice lectures on the net. The students of mit are very fortunate to get such a good lecturer.Excellent way of explaining the concepts of physics. Thank u very much Mr.Walter

61 Suman, October 21, 2011 at 7:41 p.m.:

i thing sir,the mit students r very lucky as thery got u. And we r also feeeling lucky 2 get tihs study materials in website.Thank u.

62 Harris, November 24, 2011 at 6:08 a.m.:

great.

63 leader of physics rebellion, December 3, 2011 at 9:07 a.m.:

This century must be called the acknowledgement rebellion

64 ajit mishra, December 7, 2011 at 8:16 a.m.:

great teacher

65 manuel de la Torre, March 17, 2012 at 12:46 p.m.:

Me licencié en Fisica en 1960, y me doctoré en 1975. Mi amor por la Física no ha decaido, pero el encuentro con el Profesor Lewis ha supuesto un nuevo impulso para mí. No pasa un día sin que le oiga alguna lección.

Un solo reparo ¿ porqué no traducen los subtitulos al español?

66 AS. Safa Ahamed, April 3, 2012 at 2:51 a.m.:

sir, your service is good. u're giving all these study materials for free download, ur service for the extention of the free education is to be appriciated, prof. walter H Lewin teaching approach is very nice, i was able to understand many complicated things through his demonstrations, hope to see all his videos.

67 ashish, April 25, 2012 at 1:06 p.m.:

i am a student from nepal and i'm speechless to talk about this website

68 T.N.Charyulu, June 7, 2012 at 12:17 p.m.:

Prof. Walton is a great teacher, he did a great job, he shared his knowledge with crores of students who are unable to understand complicated things theoretically.

69 Edanur Vural, June 8, 2012 at 1:25 p.m.:

I'm 17 and a real fan of physics, and i wanted to thank you professor. I'd never thought that it is that much fun. Entering this wonderful world with you was brilliant. I want to study psysics in university, I hope things I've learned will lighten my way.

70 Hashim Barraj, June 12, 2012 at 8:16 a.m.:

I am so happy to hear you explaining that I just wish I was sitting there on a chair in your lecture hall to be closer inhaling the same air you are all breathing!
I wish you utmost happiness Dr.Lewin as well as to all your students!
I wish MIT a forever prosperity and thank every single effort done by all its staff who worked to bring to light
all this knowledge to the world!
Best regards to all
Hahsim Barraj

71 SUBHANKAR BHATTACHARJEE, August 5, 2012 at 9:25 p.m.:

RESPECTED AND DEAR SIR , I WOULD LIKE TO THANK U FOR ALL YOUR HELP AND SUPPORT WHICH YOU ARE GIVING TO MAKE STUDENTS AND PHYSICS LOVING PEOPLE FEEL GOOD ABOUT PHYSICS AND UNDERSTAND PHYSICS IN A SIMPLEST POSSIBLE WAY. PROUD TO SEE AND LEARN PHYSICS FROM YOU .

72 Ananth Nag, September 13, 2012 at 7:04 a.m.:

I Thanks MIT and Prof.Watlter Levin. He has the ability to make any difficult concept easier. It also becomes fun to learn..really MIT has given its best through this..

73 Biruk, October 25, 2012 at 4:14 p.m.:

I love physics and these lecture is really wonderful. I am a Geophysicist from Ethiopia. It is really nice thing to post all this videos on the internet because those who don't get the chance to attend at such big place, like MIT it is really a great chance. I just want to say thank you for this beautiful lectures.

74 Giampaolo, December 31, 2012 at 10:13 a.m.:

Even if I had not the luck to be one of your students at MIT, I am happy to have now the chance to learn from you throught the web, because your lectures are really a priceless heritage of culture. As you said, “Knowledge only adds, knowledge never subtracs”.
Thank you so much professor Lewin, you made the world a little better. I wish you a wonderful 2013.

75 abhishek, January 25, 2013 at 2:33 p.m.:

great lectures that had made me to learn unparellel physics

76 abhishek, January 25, 2013 at 2:39 p.m.:

sir i am living in remote areas but i can say that i am reading best physics from you inspite of living in remote area

77 Babar raza , February 7, 2013 at 5:59 p.m.:

genius prof lewin thanx to u.

78 Mohamed Tarek , February 24, 2013 at 3 a.m.:

I'm an undergraduate at faculty of engineering Ain-Shams University in Egypt ,studying MEMS, Optoelectronics . Most spectacular"Walter Lewin Style ^___^ " videos i've ever seen ... maybe one day i'll come to MIT and teach , who knows :)

79 Jean-Georges Roche, April 6, 2013 at 3:02 p.m.:

Certainly the best way to learn is to take pleasure. I've learn most of things you teach but now i really understand. Thank you for this.

80 ramesh kumar, April 13, 2013 at 4:13 p.m.:

every video nice and physics works true.......

81 Thangadurai Ganesan, June 28, 2013 at 6:07 a.m.:

Prof.Watlter Levin ............ Physics works....

82 Simran Gupta, September 22, 2013 at 3:50 p.m.:

Respected sir
Thank you very much sir for your excellent lectures. I really needed these lectures. I love physics but had no source to understand it better. Sir I'm grateful to you. It was absolutely remarkable!
Best wishes.

Simran

83 Arjun , August 3, 2014 at 8:31 p.m.:

The best teacher of Physics that I have seen in my life :)

84 Francois Jooste, September 30, 2014 at 11:23 a.m.:

I want to thank the person who organised this project and all the lecturers participating in it for providing knowledge to the world without the intentions of profit or self gain.

When I first found out about these lectures my heart melted, because I don't have access to higher education. I might not ever get a degree, doctorate, phd or any kind of recognition for the knowledge that has been provided by MIT. However I don't need a fancy piece of paper to say something about me. All I ever cared about was the knowledge and here at the tips of my fingers its available.

To be able to have some kind of understanding about how our world functions and the intellectual tools to help me explore this amazing universe we all live in. What more could I ever ask for?

Thank you to everybody participating in this project for making it possible. Not just for me, but for anybody who has a desire to learn. Not just physics, but a entire range of subjects at MIT.

It makes me happy to think that knowledge is being shared with anybody that is interested. Not just because of what it means to me, but what it could mean to future generations.

I salute you all with my utmost respect.

85 Adil, October 13, 2014 at 3:10 p.m.:

Sir i have no words to express your intellet.your way of teaching is best.i like the attitude and welcome your efforts.

86 Kalyankar Madan Mohan Rao, November 25, 2014 at 2:35 p.m.:

Sir, You are great. Some where I found your video on internet. I tried and tried and found the bunch of your lectures at MIT Open Course. I'm very thankful to MIT for this great job.
I request you to raise number of videos download per day. And if possible provide good quality for videos that we download.

- Kalyankar Madan Mohan Rao
Sree Visvesvaraya Institute of Technology and science,Mahabubnagar, Telangana, India.
(Jawaharlal Nehru Technological University Hyderabad,India.)

87 Aslam Hameed, January 5, 2015 at 10:31 a.m.:

Respected sir can u send me video lectures on classical mechanics

88 imran khan, January 28, 2015 at 2:22 p.m.:

PLZ read the books , videos lectures are just original photocopies of something else ,learning is in books not in AMERICA .

89 Muhammad Jehanzeib Khokhar, January 30, 2015 at 6:42 a.m.:

I love Walter H. G. Lewin .He is a very good teacher.I love his all Lecture , style of teaching , and the way he interact with students.

Its my dream to meet him and shake hand with him.

90 ubaid ullah, March 23, 2015 at 8:23 a.m.:

prof lewin lectures and concepts are awesome. I listen prof lectures for concepts, to have fun and to create curiosity of research.

91 Richard Reddy, May 28, 2015 at 3:35 p.m.:

I took this course on edX. Quite a blast of physics!

92 sunil chawala, October 24, 2015 at 4:24 a.m.:

very nice for giving lectures

93 SOORYA, December 5, 2015 at 4:30 p.m.:

HE IS A GENIUS...!

94 Paweł Kreczmański, December 9, 2015 at 1:17 p.m.:

Fantastic!
A true talent of teaching.
This is beutiful physics is beautiful!!
Thank you!!!
For sharing this passion!!

Pawel, Warsaw, Poland.

95 sachin narula, February 12, 2016 at 3:48 p.m.:

Respected sir can you please tell me how we can physically prove E = mc²

96 ADITYA PRATAP SINGH, August 28, 2016 at 5:32 p.m.:

Sir you change my view toward science especially toward physics and space and time. Thanks to you and your valuable lectures and their references.

Sir I want to know how may I get a chance to be a student of MIT to study and do my research.

Please give me a reply Sir

97 haggai, October 23, 2016 at 4:02 a.m.:

Great lectures

98 Edson de Melo-Holzgreve, December 26, 2016 at 11:49 p.m.:

Beste Prof Lewin,

heel bedankt voor de leuke college.

99 VIRENDRA MEHTA, June 7, 2017 at 7:37 p.m.:

Sir your lecture is really great , thank you for that . I'm from India. I down lode your lecture and share with my friends.

100 Bako Alhaji Shuaibu, July 17, 2017 at 7:52 a.m.:

Excellent Professor

101 Todd Mueller, January 13, 2021 at 4:09 a.m.:

Great post! We'll be sharing this with our buddies in Bakersfield, CA.

Thanks! - Todd, owner of http://www.bakersfieldcardetail.com

102 Amey pathak, April 17, 2021 at 5:25 a.m.:

Best teacher