One of the educationalist from Southern India once said A great Teacher inspires good teacher explains average teacher teaches (what is in the book) poor teacher complains Teaching is not just to pass the information nicely because no one can pass all the information available to others but rather is to ignite the minds to go and look for information and understand something clearly.
I was sad to learn that these lectures were removed from MIT's webpage. I use them frequently to remind myself of topics I learned in Physics, as well as to show young students I mentor the "fun of physics". Thanks for posting them here, Professor Lewin! Hopefully the whole issue with MIT hasn't affected you too much.
Being a feeble minded high school dropout. I can't get enough of these videos. Your a very captivating speaker and teacher. Motivating like a preacher on Sunday morning.
As a high school freshman my school doesn't allow me to take astronomy or any science class except bio and chem so your lectures are really nice for learning Thanks so much for these lectures
"It is my wish that all of you during life, not after death, find the right companion, radiate and be happy" One of the most inspiring thing I've ever heard.
I can't find the proper words to express myself, but I want to tell you that you have not just inspired me, but you've changed my life, made me love Physics and a bit more, which I can't tell you now, but I will and hopefully I will do this personally! This is the way people should be taught and no other else. A HUGE thank you Prof. Lewin!
Never seen einstein and newton but I see you (sir lewin) . You make us feel physics . Be very thankful to reveal that beauty of physics sir ...... Love from india.
You are an inspiration to students and other teachers alike. You have activated a hunger for knowledge and wisdom, inspiring me to plan my future and become a better individual. I am grateful to have been taught by such an admirable person. Thanks from Nepal!
Professor, if you could teach quantum mechanics or relativity, what demos would you perform? I ask because those two subjects deal with microscopic and macroscopic objects, which many believe is hard to perform any experiment on!
BEST SCIENCE LECTURE SEEN SO FAR. WISH WE HAD PROFESSORS LIKE YOU ...SIR. YOU ARE BLESSED AND VERY MUCH RESPECTED FOR US. WHERE CAN I WATCH YOUR OTHER LECTURES?
Thank you for all wonderful lessons that you made available online and thank you for uploading everything on this channel. Prof. Walter Lewin, thank you so much. It's very much appreciated.
Subscireber I am glad you appreciate all the work a friend of mine and I have done. This site has all my course lectures in high resolution. We also post my Lecture Notes, Homework Assignments, exams and the solutions. You can find them below the lecture (pdf files). We also posted 142 sort videos of my Help Sessions for 8.01 and 8.02 (Problem solving).
I have a question for Professor Lewin. If the gravity of the singularity at the centre of a black hole is so great that even light cannot escape from it, surely, for light to be pulled back inside the event horizon, it MUST either move faster than the speed at which it was leaving - which was THE SPEED OF LIGHT or remain static so that all the photons "pile up" at the event horizon. Since the speed of light is supposed to be finite, which is it?
At the event horizon, the escape velocity is equal to the speed of light. Since general relativity states that nothing can travel faster than the speed of light, nothing inside the event horizon can ever cross the boundary and escape beyond it, including light.Apr 9, 2020
@@lecturesbywalterlewin.they9259 This is my whole point. If the escape velocity is the speed of light, for anytthing to be prevented from escaping, it MUST be 'pulled back' at a speed (or, more correctly, with a force) GREATER than that at which it was escaping.
I have a question.when I saw a supernova explosion in a science documentary it make enormous sound, but in space there is no medium for sounds right ,so there would be no sound isn't it ?? if yes then is it the explosion without sound.how unimaginable it is !!!
Lectures by Walter Lewin. They will make you ♥ Physics.Prof. one general question,WHY is it that the maximum stable mass of a white dwarf equal to CHANDRASEKHAR LIMIT?thank you
Sir as last iron persists and lead to end of that.... probably this is the reason why Mars is red in colour and small in size as it is exhausted to that much so only iron left which oxidise to give it red colour
a white dwarf is approx as large as the Earth but it's density is about 300,000 times higher. A neutron star has a diameter of about 10 km. It's density is close to 10^14 g/cm^3 which is the density of nuclei. I mention all that in this lecture. Plse watch it again.
Lectures by Walter Lewin. They will make you ♥ Physics. thanks professor...but quantum mechanics is hard to understand for me.... can't digest at all..still trying to consume the whole...only partly understood..
an acceptable (but not 100% accurate) way is to assume that the magnetic dipole field of the original star (white dwarf) remains in tact. If you shrink a sphere with a dipole field B and radius 10,000 km to a sphere whose radius is 10 km, then the B-field at the surface will increase by a factor of 10^6 (surface area decrease).
I am literally glued to youtube because of you right now. Hey, I need a job damnit! I wonder if an X mark the spots is required or the opposite. If the opposite is required then, Shiz I have no clue.
the x is NOT required in any way as far as my 8.01x and 8.02x courses are concerned. 8.01x and 9.02x have a better resolution than 8.01 and 8.02 and they problem sets and exams and solutions and also Lecture Notes. No other sites whale that.
good what strange is that,so the collapse will occur as a result of enormous heat body how could year be the magnitude time that will assume continues in billions?
One of the educationalist from Southern India once said
A great Teacher inspires
good teacher explains
average teacher teaches (what is in the book)
poor teacher complains
Teaching is not just to pass the information nicely because no one can pass all the information available to others but rather is to ignite the minds to go and look for information and understand something clearly.
+Soshee Ananda very true!
Seems that I've never met a good teacher lol😂
I was sad to learn that these lectures were removed from MIT's webpage. I use them frequently to remind myself of topics I learned in Physics, as well as to show young students I mentor the "fun of physics". Thanks for posting them here, Professor Lewin! Hopefully the whole issue with MIT hasn't affected you too much.
+Nicholas Furnari Thanks for your kind words Nicholas.
Thank you from Spain.
All of us love you, proffesor.
God bless you!
Being a feeble minded high school dropout. I can't get enough of these videos. Your a very captivating speaker and teacher. Motivating like a preacher on Sunday morning.
+Bounty6Gulf Excellent!
As a high school freshman my school doesn't allow me to take astronomy or any science class except bio and chem so your lectures are really nice for learning
Thanks so much for these lectures
"It is my wish that all of you during life, not after death, find the right companion, radiate and be happy" One of the most inspiring thing I've ever heard.
yes that was very cool
I can't find the proper words to express myself, but I want to tell you that you have not just inspired me, but you've changed my life, made me love Physics and a bit more, which I can't tell you now, but I will and hopefully I will do this personally! This is the way people should be taught and no other else. A HUGE thank you Prof. Lewin!
thanks for your kind words Maksym
i already love physics...but this lecture inspires me to do something in the field...loving is not enough anymore..
thank you, sir!
GREAT!
Never seen einstein and newton but I see you (sir lewin) . You make us feel physics . Be very thankful to reveal that beauty of physics sir ...... Love from india.
I admire you for sharing your knowledge free! Big Thank YOU!
Thank you!! from Birmingham England
Sir after watching your lecturing I decide to do something in PHYSICS ❣️🤩
From India🇮🇳🤩
What can I say? Simply another wonderful and informative lecture from Professor Lewin. Thank you sir.
Absolutely amazing. Thank you for the lecture.
+NTxC :) :) :)
You are an inspiration to students and other teachers alike. You have activated a hunger for knowledge and wisdom, inspiring me to plan my future and become a better individual. I am grateful to have been taught by such an admirable person. Thanks from Nepal!
thanks for your kind words
Thank you very much professor :-*
Amazing teaching, really interesting , loved it.
+Charlesv78 Thank you
Thank You.
Professor, if you could teach quantum mechanics or relativity, what demos would you perform? I ask because those two subjects deal with microscopic and macroscopic objects, which many believe is hard to perform any experiment on!
BEST SCIENCE LECTURE SEEN SO FAR.
WISH WE HAD PROFESSORS LIKE YOU ...SIR. YOU ARE BLESSED AND VERY MUCH RESPECTED FOR US.
WHERE CAN I WATCH YOUR OTHER LECTURES?
+Prakash Kamath There are 284 videos on this site. It includes ALL my lectures.
Briljante lecture! Bedankt Walter.
+Benjamin Devlaaming Niets te danken Benjamin!
52:21 If this lecture took place 6 years later, you would have had a picture at your disposal.
Brilliant lecture, thank you.
Thank you for all wonderful lessons that you made available online and thank you for uploading everything on this channel. Prof. Walter Lewin, thank you so much. It's very much appreciated.
Subscireber I am glad you appreciate all the work a friend of mine and I have done. This site has all my course lectures in high resolution. We also post my Lecture Notes, Homework Assignments, exams and the solutions. You can find them below the lecture (pdf files).
We also posted 142 sort videos of my Help Sessions for 8.01 and 8.02 (Problem solving).
Wonderful! Thank you again and best regards!
I have a question for Professor Lewin. If the gravity of the singularity at the centre of a black hole is so great that even light cannot escape from it, surely, for light to be pulled back inside the event horizon, it MUST either move faster than the speed at which it was leaving - which was THE SPEED OF LIGHT or remain static so that all the photons "pile up" at the event horizon. Since the speed of light is supposed to be finite, which is it?
At the event horizon, the escape velocity is equal to the speed of light. Since general relativity states that nothing can travel faster than the speed of light, nothing inside the event horizon can ever cross the boundary and escape beyond it, including light.Apr 9, 2020
@@lecturesbywalterlewin.they9259
This is my whole point. If the escape velocity is the speed of light, for anytthing to be prevented from escaping, it MUST be 'pulled back' at a speed (or, more correctly, with a force) GREATER than that at which it was escaping.
Hey Walter! Like from Hamburg!
+Walter Hamburg Thank you
Lectures by Walter Lewin. They will make you ♥ Physics. Great video , happy new week for you
Hey I'm 14 and have a syndrome where it allows me to memorize everything and I love his lectures and he is my favourite physicist
And you are my idol
😂😂memorize
I have a question.when I saw a supernova explosion in a science documentary it make enormous sound, but in space there is no medium for sounds right ,so there would be no sound isn't it ?? if yes then is it the explosion without sound.how unimaginable it is !!!
no sound! for sure.
Lectures by Walter Lewin. They will make you ♥ Physics.Prof. one general question,WHY is it that the maximum stable mass of a white dwarf equal to CHANDRASEKHAR LIMIT?thank you
Take a course in QM and you will see how that can be derived.
hmm...i will have to wait a little for that...because im only in 12th grade...it will need some more years
Sir as last iron persists and lead to end of that.... probably this is the reason why Mars is red in colour and small in size as it is exhausted to that much so only iron left which oxidise to give it red colour
Hello professor , is a whitedwarf larger than a neutron star ?
a white dwarf is approx as large as the Earth but it's density is about 300,000 times higher. A neutron star has a diameter of about 10 km. It's density is close to 10^14 g/cm^3 which is the density of nuclei. I mention all that in this lecture. Plse watch it again.
Hardstikke bedankt meneer! Uw colleges zijn zo goed!
+Henk K Dank voor je vriendelijke woorden
nice
Blaring Blaze thank you
Blaring Blaze glad you like it
why neutron stars have magnetic fields????can I explain it with 8.02 knowledge....or should I be needing quantum mechanics???
you can make an attempt with 8.02 but yes it requires QM
Lectures by Walter Lewin. They will make you ♥ Physics. thanks professor...but quantum mechanics is hard to understand for me.... can't digest at all..still trying to consume the whole...only partly understood..
an acceptable (but not 100% accurate) way is to assume that the magnetic dipole field of the original star (white dwarf) remains in tact. If you shrink a sphere with a dipole field B and radius 10,000 km to a sphere whose radius is 10 km, then the B-field at the surface will increase by a factor of 10^6 (surface area decrease).
Lectures by Walter Lewin. They will make you ♥ Physics. thanks professor....
Professor, is our Sun shrinking in size due to nuclear fusion?
NO
use google
Woo
This makes sooo much sense when you know that magnets are dipole. SOOOOOO MUCHHH MORE. Now my brain wants to make a star in a jar for some reasons !
Thinktank Make a star in a jar. NICE!
\\/\////////
I am literally glued to youtube because of you right now. Hey, I need a job damnit! I wonder if an X mark the spots is required or the opposite. If the opposite is required then, Shiz I have no clue.
the x is NOT required in any way as far as my 8.01x and 8.02x courses are concerned.
8.01x and 9.02x have a better resolution than 8.01 and 8.02 and they problem sets and exams and solutions and also Lecture Notes. No other sites whale that.
Lectures by Walter Lewin. They will make you ♥ Physics. 9.02x should be 8.02x
So my brain was fuming for a real reason than!. thx sir.
good what strange is that,so the collapse will occur as a result of enormous heat body how could year be the magnitude time that will assume continues in billions?
exoplanets.nasa.gov/resources/2174/core-collapse-supernova/
I lyk gravity