When a physics teacher knows his stuff !!

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  • Опубликовано: 3 мар 2016
  • OMG!
    #WalterLewin #physics
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Комментарии • 19 тыс.

  • @mirzazayanbegg7736
    @mirzazayanbegg7736 2 года назад +14265

    Teacher: This could kill me
    Audience: Laughs

    • @secretunknown2782
      @secretunknown2782 2 года назад +900

      Teacher : this killed me
      Audience : laughs

    • @gatpaham
      @gatpaham 2 года назад +733

      Teacher: gets his chin crushed because he failed to give it 0 speed
      Audience: Laughs

    • @petrospatrianakos9166
      @petrospatrianakos9166 2 года назад +651

      Teacher : Physics works, and I am still alive.
      Audience : *cries*

    • @yvngski3310
      @yvngski3310 2 года назад +61

      💀💀💀

    • @Imcckr
      @Imcckr 2 года назад +206

      Teacher: This could kill me
      Cringe RUclipsrs: Respect 💯

  • @Infin_
    @Infin_ 10 месяцев назад +4149

    "Physics works and I'm still alive"
    ~true words by a legend

    • @DaVdWatson
      @DaVdWatson 4 месяца назад +79

      Marie Curie: Physics works and I am dead.

    • @y5okiiii
      @y5okiiii 4 месяца назад +9

      @@DaVdWatson😭..

    • @aquila_aurea
      @aquila_aurea 3 месяца назад +5

      ​@@DaVdWatson Well, we Poles have experience in being under partition, not in staying alive 😅

    • @Hagurmert
      @Hagurmert 2 месяца назад +4

      ​@@DaVdWatsonShe did something very impressive and was the first person to earn a double Nobel award. She found radioactivity but due to large exposure to X-rays, well... She died much earlier than eotherwise

    • @nnaheim.
      @nnaheim. 2 месяца назад

      Butt.....plug

  • @Dogolog22921
    @Dogolog22921 6 месяцев назад +2000

    2:06
    The two guys who got stoned but showed up for class and were glad they did.

  • @spork0.0
    @spork0.0 8 месяцев назад +579

    "I am going to put my life on the line" Mr. Walter says.
    *entire class cheering*💀💀💀

    • @axlrosest
      @axlrosest 2 месяца назад +12

      mr white?

    • @weathermanx
      @weathermanx 2 месяца назад +7

      ​@@axlrosest this is the moment Walter became mechanical energy

    • @HansonZhang-ri2lj
      @HansonZhang-ri2lj 6 дней назад

      Waltuh

  • @pepa007
    @pepa007 2 года назад +46402

    Kudos to this man for going out of his way to present something that his students will remember for the rest of their lives.

    • @weneedaladder8384
      @weneedaladder8384 2 года назад +2847

      I was gonna say it's not really anything special, and that I remember a teacher doing something almost exactly the same when I was in middle school.
      And then I realized I remember almost nothing about middle school, but I do remember the teacher doing this experiment and the basic principles behind it.
      So I guess you got a point.

    • @bigjoneschillin
      @bigjoneschillin 2 года назад +458

      Facts I don’t even remember who taught me how to count but I’ll remember this

    • @senly2413
      @senly2413 2 года назад +55

      Ao3

    • @the6thfloor33
      @the6thfloor33 2 года назад +70

      They'll forget it by the end of class.

    • @zhuyuchen8324
      @zhuyuchen8324 2 года назад +107

      @@weneedaladder8384 im a middle schooler and my teacher just did this thing like today

  • @lanceleader163
    @lanceleader163 2 года назад +11044

    “Physics works, and I’m still alive!” This is the second time I’ve watched this video and I love it. That professor has balls.

    • @bushbasher85
      @bushbasher85 Год назад +403

      Literally! One almost crushed him. 😃😃😃

    • @emmiluuv7700
      @emmiluuv7700 Год назад +22

      @@bushbasher85 tmi dude 🤦🏻‍♀️

    • @Mr12Relic
      @Mr12Relic Год назад +76

      There was once an engineering professor who would throw himself at the safety glass windows in a very tall building to demonstrate that it won't crack or shatter because it's specially designed to withstand much more significant forces. This worked every time but once. The pane of glass remained perfectly intact but popped from its case.

    • @DEEZnutsHAgotem
      @DEEZnutsHAgotem Год назад +47

      @@emmiluuv7700 how tf is that a tmi

    • @thunderspark1536
      @thunderspark1536 Год назад +13

      Religious people making false predictions: Is it possible to learn this power?

  • @sirgerar2006
    @sirgerar2006 4 месяца назад +603

    I just love these types of teachers 😊they truly go above and beyond to make a routine lecture simply amazing

    • @lecturesbywalterlewin.they9259
      @lecturesbywalterlewin.they9259  4 месяца назад +117

      Wow, thank you!

    • @Hagurmert
      @Hagurmert 2 месяца назад

      ​​@@lecturesbywalterlewin.they9259it's interesting to see you still active on RUclips and replying to some comments..
      After I've seen this video once before, every time I think about GPE, pendulum or see in the class, I remember this representation
      I like physics so this is very much my kind of a topic
      Edit: just checked and I can see you are almost daily uploading, that's very cool!

    • @SIGMAMUSLIM-_-
      @SIGMAMUSLIM-_- 2 месяца назад

      Hi Are you alive
      ?​@@lecturesbywalterlewin.they9259

    • @King_of_Overthinking
      @King_of_Overthinking 2 месяца назад

      You are an amazing person to still reply even after 8 years, you are​ a great teacher @@lecturesbywalterlewin.they9259

    • @CarlFriedrichGauss1
      @CarlFriedrichGauss1 2 месяца назад

      @@lecturesbywalterlewin.they9259 HELLO SIR BIG FAN

  • @simonnachreiner8380
    @simonnachreiner8380 6 месяцев назад +448

    I’m not even interested in physics beyond mere curiosity and yet this man’s enthusiasm is absolutely infectious.
    What I would give to learn about something from someone with such a love instead of a teacher who very clearly wants to be anywhere but a classroom.

  • @soelemon
    @soelemon 2 года назад +6986

    Even knowing the results, my heart was still beating fast when he released the ball

    • @sweetcinnamonpnchkin
      @sweetcinnamonpnchkin 2 года назад +232

      Wonder how many students were laughing due to stress release.

    • @williambarnes5023
      @williambarnes5023 2 года назад

      Your mind which has evolved to be human and work in logic understands conservation of energy and that the ball has to stop.
      But the monkey part of your brain that evolved to throw rocks at tigers sees a big rock moving damn fast and expects a crushed tiger.

    • @abdullahawais9267
      @abdullahawais9267 2 года назад +75

      uh no coz if the man didn't release it with 0 speed it could have hit him that's why he was so nervous

    • @optimisticwatermelon
      @optimisticwatermelon 2 года назад +41

      Op was talking about the fact that they themselves, not the teacher, knew the outcome.

    • @appledan510
      @appledan510 2 года назад +4

      @@abdullahawais9267 what?

  • @celtsfan13
    @celtsfan13 Год назад +10166

    his passion is what is absent from most teachers these days

    • @Neonarmenian
      @Neonarmenian Год назад +491

      If youve ever been a teacher, you'd then understand why the passion is beat out of us these days. Most of us start off with a great deal of passion

    • @metalbabee
      @metalbabee Год назад +303

      The passion isn't gone, teachers are told to teach certain things certain ways. Students have much lower attention spans/self-control/respect and aren't taught consequences. Lack of good parenting and schools/parents/students not seeing teachers as professionals or even human sometimes.

    • @00ammy00
      @00ammy00 Год назад +173

      @@metalbabee As a teacher myself who has been going through a rough week because of a parent complaining about me to my supervisor and coordinator because her daughter got a 98 instead of a perfect 100 on her overall score, and my superiors lecturing me on how I should be doing better because they can't ever so no to parents, I can't tell you how much it relieves me to know that there are people out there who understand that teachers aren't these soul-sucking vindictive monsters who purposefully want to take the joy out of learning. Just like you said, it's the school, parents, and yes sometimes the students who make it hard for us to go into work everyday smiling and trying to do the best we can when we know we'll never get any thanks for it.

    • @00ammy00
      @00ammy00 Год назад +64

      @@Neonarmenian I received such a shock when I first started teaching, seeing the way things were actually run in schools - it took me over two years to accept the fact that schools these days are less about teaching (or helping teachers teach effectively) and more about business. Hard to feel passionate when you are given a thousand pointless tasks and deadlines to meet instead of having the freedom to teach the way you want that's best for you and your students.

    • @alilniko8016
      @alilniko8016 Год назад +31

      @@00ammy00 ngl I feel bad for some teachers cus in my class we complain about the mean teacher who tells us to be quiet when we talk but then when it's a nice teacher who only shouts when it goes too far they take advantage of them

  • @welfareprick
    @welfareprick 6 месяцев назад +77

    Man, this person does have balls, for sure. He bet his own life to make a regular lecturing beyond any borders of entertainment.

    • @Monkest
      @Monkest 2 месяца назад +1

      He has 3

    • @Adrian-ze9ud
      @Adrian-ze9ud 2 месяца назад +1

      No, he doesn't have the ball. Didn't you see how he dropped it? XD

    • @deerajitdeepan2972
      @deerajitdeepan2972 9 дней назад +1

      69 likes when i read this comment!!

  • @boombalatty2161
    @boombalatty2161 8 месяцев назад +64

    This video pops into my feed every so often, and I always feel the need to watch it again. For some reason I also never forget it. It was great teaching

  • @calvin19980324
    @calvin19980324 2 года назад +14099

    I watched his physics lecture series back in 2008 when I worked in restaurants to save up for university. Over a decade later, I'm now a senior engineer in a multinational consultancy. Thanks for the inspiration and wisdom!!

    • @Hi-yr4zd
      @Hi-yr4zd 2 года назад +170

      Epic! Nice you got what you wanted!

    • @manny2092
      @manny2092 2 года назад +70

      good for you! That's amazing!

    • @jsb4812
      @jsb4812 2 года назад +11

      no big deal tho

    • @senkuishigami2485
      @senkuishigami2485 2 года назад +121

      @@jsb4812 it is

    • @prashantkumar-tv3js
      @prashantkumar-tv3js 2 года назад +10

      Hire me boss 🙏 i also wanted to be a good mechanical engineer 🙏

  • @AntigamerproXD_Christopher
    @AntigamerproXD_Christopher 2 года назад +3608

    that physics teacher was a good teacher he clearly explained that when he released the ball the gravitational potential energy converts to kinetic energy as it swings down.

    • @wrathcyber
      @wrathcyber 2 года назад +43

      If you're interested in the proof:
      Energy is conserved in this system.. Therefore, E initial = E final. Using this, we can use the formula for kinetic translational energy K = 0.5(m)(v)^2 and set it equal to mgH (gravitational potential formula). H is the initial starting height.
      You can simplify this by canceling out m and g constants from both aides since they do not change.
      We are left with H = 0.5(v)^2
      Therefore, v(velocity)will change based on the height but will never exceed the total output of gravitational potential energy.

    • @JustapErson
      @JustapErson 2 года назад +46

      I can't believe American college learns stuff that everywhere else learns in primary school.

    • @pcicopata3084
      @pcicopata3084 2 года назад

      No its logic? I dont understand ajsk xd q if you trhow a ball obviosly it wont be at the same high than the first time you trhow it xdxdd qq qq. Q q.

    • @itsgoofymf7685
      @itsgoofymf7685 2 года назад +25

      @@JustapErson well they learn it in primary school too. It's just for some reason, American schools like to go over the same thing over and over again. Why do other people hate Americans? Yall find every way to hate on them

    • @Alik_Odess
      @Alik_Odess 2 года назад +21

      @@JustapErson You learn the basics of the basics of the basics in Primary School.
      Primary School= Shit goes up and falls down. Highschool= How fast and why it falls down. College= Yeah but let's see outside of our scope of understanding how shit falls down.
      That how college work.

  • @itaibar8909
    @itaibar8909 4 месяца назад +52

    I never had a teacher like that! That's a way to get you to pay attention and learn!! amazing, simply amazing

  • @Jupiter-T
    @Jupiter-T 10 месяцев назад +94

    Demonstrations and hands-on learning are important, but I feel like this professor's passion, sense of humor, and clarity are what make his method successful. Professors with that kind of energy really make classes enjoyable and get students excited about the topic. Putting one's life on the line is just the icing on the cake lol.

  • @recklesspotato212
    @recklesspotato212 Год назад +6460

    The fact that the Teacher still reads comment to this day is so wholesome 😂
    i want to thank you kind sir

  • @bobbymoss6160
    @bobbymoss6160 Год назад +6656

    Imagine if he accidentally inserted a little big of energy to the ball when he released it. RIP professor.

    • @mujtaba9190
      @mujtaba9190 Год назад +521

      I know right it's so dangerous, the tiniest force could have given the ball extra speed and he would have died

    • @matty6878
      @matty6878 Год назад +134

      A+s for everyone!

    • @LS-Moto
      @LS-Moto Год назад +495

      @@mujtaba9190 If it was the tiniest force, he wouldn't have died, but experience anything from gentle contact with his chin, to a broken chin, jaw and teeth.

    • @mujtaba9190
      @mujtaba9190 Год назад +79

      @@LS-Moto Still dangerous bro, would you be willing to do something like that?

    • @naveenameta8881
      @naveenameta8881 Год назад +11

      Beta wo Walter Lewin hai.....

  • @TisHotMessHistory
    @TisHotMessHistory 2 месяца назад +3

    What a lucky group of students to have such a passionate teacher. They will never forget this man.

  • @pogzie
    @pogzie 7 месяцев назад +8

    I've appreciated learning more with professors demonstrating practical applications of what they are teaching. I carried that over when I was the one teaching.

  • @ninjacoffeebunny4659
    @ninjacoffeebunny4659 2 года назад +1038

    "Physics works, and I am still alive!"
    That's a catch phrase 😂

    • @C.A._Old
      @C.A._Old 2 года назад +3

      Best A The Best.

    • @AmstradExin
      @AmstradExin 2 года назад +4

      One to take to heart!

  • @jag1809
    @jag1809 2 года назад +3609

    Taking the phrase "practice what you preach" to a literal meaning this dude has balls and conviction in what he teaches hats off to him

  • @bullgravy6906
    @bullgravy6906 5 месяцев назад +21

    My physics professor was like this guy, he was hilarious and always made this homework and test questions from various movie or tv show scenes and why the would or would not work. Back to the Future was his favorite movie since they just made up a unit of energy and rolled with it rather than trying to make it all “sorta” reality. But he also did pop quizzes over Back to the Future physics to make sure we watched his favorite movie

  • @karlanderson6140
    @karlanderson6140 3 года назад +1054

    "if i make a mistake this will be my last lecture" backround: *laughter*

  • @joshuabrand1249
    @joshuabrand1249 2 года назад +2166

    I sat through physics I and II and almost exclusively learned everything from the textbook. Professors like these are gold mines of inspiration.

    • @John-X
      @John-X 2 года назад +10

      Nobody gonna mention how Dennis from It's Always Sunny in Philadelphia suddenly appears at 2:05?

    • @atomicfireball2302
      @atomicfireball2302 2 года назад +3

      @@John-X holy shit i see it man

    • @bearaddictionz
      @bearaddictionz 2 года назад

      @@John-X does not look like Dennis at all

    • @Michael-mh2tw
      @Michael-mh2tw Год назад

      Explain to me how you could do anything like this when learning 95% of the topics you learn in a physics degree. You need to learn from a textbook. It is the best way to learn. Most of the time, it is the only way to learn. Don't believe that 'you just forget it after the exam' bs either - it's not about your capacity to remember, it's about your capacity to have been able to learn it.

    • @Jupiter-T
      @Jupiter-T 10 месяцев назад +1

      @@Michael-mh2tw I'm unsure what you're trying to say. Are you suggesting that lectures don't add anything? In my college classes, the quality and coherence of the professor was instrumental to my understanding of the material. Reading the textbook is one way to learn, but even though I like reading, math and physics textbooks are very dry, and my eyes tend to glaze over. It doesn't make sense to me unless someone walks me through it, preferably while drawing diagrams or graphs on a whiteboard. Taking notes is crucial.
      I was homeschooled in high school, and math was one subject where I fell behind, since I had no teacher and was just attempting to absorb information from textbooks. At community college I took an algebra course online where the professor was barely even existent, and I got a B (I had to watch Khan Academy videos on the side to pass). When I went to a university, my Trigonometry and Calculus teachers were very good, and I got an A in both classes. My physics professor was hard to understand, and I got a B (I really should have gotten a C, but he was a lenient grader).

  • @eee_eee
    @eee_eee 8 месяцев назад +8

    random wind from nowhere on its way to push the ball :

  • @RandomVideoGuyNZ
    @RandomVideoGuyNZ 10 месяцев назад +28

    Took me 2 days to try and understand what work is and this man explains it in 3 minutes more clearly then my teacher did in the last 2 days lol

  • @allsickcjj3023
    @allsickcjj3023 2 года назад +2630

    i took physics my junior year, passed with a 70 forgot everything, yet somehow the way this dude just taught this it made everything flood my mind again i was literally finishing the dudes sentences for him, i wish all my teachers could be this easy to follow

    • @kjfurr
      @kjfurr 2 года назад +63

      So you didn't forget and actually learned the material years ago, well memorized it. Good job.

    • @randomt800kiddo2
      @randomt800kiddo2 2 года назад +45

      you didn't really forget anything, it's much easier for tucked away knowledge to become accessible when it's relevant

    • @scrubfive9239
      @scrubfive9239 2 года назад +14

      How we learn is very important. The difference between a great and engaging teacher and a teacher just goin through the motions can drastically impact how much the students learn.

    • @josephfasulo522
      @josephfasulo522 2 года назад +9

      Well maybe not everything...just 100% of 70% of th course ';)

    • @christopheramantell1960
      @christopheramantell1960 2 года назад

      @@Monsoon_Enjoyer Is that cool or sad?

  • @ruhumeIodi
    @ruhumeIodi 2 года назад +1715

    *If we had a teacher like that, physics would be our favorite subject*

    • @C.A._Old
      @C.A._Old 2 года назад +8

      Best A The Best.

    • @debestcanadian
      @debestcanadian 2 года назад +42

      I *was* lucky enough to have a physics teacher like this in high school. Energetic and enthusiastic about learning, he'd be leaping onto the top of his desk and shouting "Come on, people! Physics is FUN!" if we weren't as excited as he was about his lessons. Thanks Mr Thorpe. More than 30 years later, still the best teacher I ever had.

    • @meowyyyy4727
      @meowyyyy4727 2 года назад +1

      Hi :)

    • @alexox4011
      @alexox4011 2 года назад +2

      if and if

    • @Hmm69420
      @Hmm69420 2 года назад +10

      Yea but those type of teachers r very rare.

  • @darkideas2088
    @darkideas2088 4 месяца назад +7

    Smashing success!!!
    Thank you for that lesson!😊

  • @tahahaiyat
    @tahahaiyat 5 месяцев назад +7

    We need more of you Sir in today's world... Massive Love and Respect... Love you ❤❤❤❤

  • @monsterval3867
    @monsterval3867 Год назад +5545

    watching this years later and understanding every concept and formula is crazy to me, I'm glad he does visual examples I wish more physics teachers were like this instead of just doing a bunch of notes and then word problems

    • @lecturesbywalterlewin.they9259
      @lecturesbywalterlewin.they9259  Год назад +127

      ruclips.net/user/shortsesyw1xihCWk

    • @prakharsrivastava5548
      @prakharsrivastava5548 Год назад +68

      @@lecturesbywalterlewin.they9259
      Hello sir, I'm a student of 10th grade and I'm in love with your lectures, so much so that I can't stop watching advanced concepts.
      I can't believe I'm able to understand college level topics while being in highschool ❤❤

    • @apobangpo_07.
      @apobangpo_07. 10 месяцев назад +1

      ​@@prakharsrivastava5548jee aspirant?

    • @angeloprofera3296
      @angeloprofera3296 10 месяцев назад +1

      @@lecturesbywalterlewin.they9259 "...and most things are beautiful" .. Sir, I'm inspired. The way I see things is so simple, the fact I'm walking and standing on this land. But physics really is the study of everything we see and feel. Why wouldn't you want to know more about it? Wow :)

    • @chrismarklowitz1001
      @chrismarklowitz1001 10 месяцев назад +2

      Do these experiments in your head try to understand what it means.

  • @emmitscully7364
    @emmitscully7364 2 года назад +3469

    I had a physics teacher similar to this my junior year. He always presented everything we were learning in a tangible way with real application. Looking back it was my favorite course.

    • @HaggardEffect
      @HaggardEffect 2 года назад +14

      Had one similar like 20 years ago, when he brought out the Van de Graaff I had the longest hair so knew I was up.
      He burst out laughing (and knew it was coming) after I stepped off the box and grounded my leg... Probably my favourite too TBH.

    • @veryslyfox
      @veryslyfox 2 года назад +6

      Did he also make a dangerous mess with broken glass?

    • @Laotzu.Goldbug
      @Laotzu.Goldbug 2 года назад +45

      @@veryslyfox luckily, with a tremendous amount of time and resources, modern science has been able to give us the broom

    • @majorpwner241
      @majorpwner241 2 года назад +4

      Application matters SO much in education. If you don't know how to apply knowledge in the real world there's no point in learning it to begin with.

    • @ahmadarab1312
      @ahmadarab1312 2 года назад +2

      Professor**

  • @Shysfjrjdkrn3333
    @Shysfjrjdkrn3333 5 месяцев назад +26

    I am a jee aspirant (from India 🇮🇳🇮🇳) and I want a teacher of physics like you ❤ you gave me the feel of concept ❤😊. I am watching this video after 8 years

  • @Ridlay_
    @Ridlay_ 8 месяцев назад +8

    Still absolutely legendary. Now that's how you make students remember what you are teaching.

  • @soldier09r
    @soldier09r 2 года назад +3549

    I love seeing a man passionate about his profession, especially a teacher!! My wife is a teacher so I'm a little biased lol

    • @christopherwhite3409
      @christopherwhite3409 2 года назад +12

      If only we could teach like that!!

    • @timothyaugustine7093
      @timothyaugustine7093 2 года назад +8

      An absolute 🐻 like you should be biased bahaha she's lucky to have you.

    • @HevahaB
      @HevahaB 2 года назад +22

      as a student those types of teachers really changed my opinion on what they were teaching and i always remembered them and will be thankful

    • @ciel_vanitas
      @ciel_vanitas 2 года назад +36

      so your wife is a man passionate about his profession?

    • @deadduckcoc
      @deadduckcoc 2 года назад +11

      @@ciel_vanitas you must come from a 5th world country there buddy

  • @harsha.0009
    @harsha.0009 Год назад +3221

    '' This man risked his life for PHYSICS '' You’re probably the best physics teacher out there. There should always be a way to learn something new in a fun way! ✨

    • @snoop_diggity_dogg6059
      @snoop_diggity_dogg6059 Год назад +101

      He didn't risk anything.

    • @HouseOfWanda
      @HouseOfWanda 11 месяцев назад +51

      @@snoop_diggity_dogg6059 if someone at the other end released the ball higher than that man’s height instead of releasing it in-front of himself like he did in the video then that ball would’ve obliterated his head. That’s what he was trying to explain, that you can’t make an object swing higher at the second point than the first point because that would be more energy than it was actually given

    • @ok.1791
      @ok.1791 11 месяцев назад +19

      @@HouseOfWanda yea i think snoop dog was trying to say that he knew it wouldnt come back and hit him so there actually wasnt a risk

    • @Gabriel-wq4ln
      @Gabriel-wq4ln 10 месяцев назад +8

      @@HouseOfWanda Does this actually answer anything about the other guy's comment?

    • @Gabriel-wq4ln
      @Gabriel-wq4ln 10 месяцев назад +1

      @@snoop_diggity_dogg6059 He risked giving the ball a little bit of extra force before release, which would end up crushing his head.

  • @rickgrech5577
    @rickgrech5577 10 месяцев назад +2

    The world needs more teachers like him . The world needs more teachers like him .

  • @_lord_pain_
    @_lord_pain_ 6 месяцев назад +4

    " Physics works and i am still alive " ❤😂

  • @APersonMusic
    @APersonMusic Год назад +3370

    We NEED more teachers like this. It makes the students actually WANT to learn. Instead of just making them stare at a piece of paper to remember things then forget them after their finals, it makes them want to learn about the topic, as what he did here was actually interesting.

    • @fromanaltreality1020
      @fromanaltreality1020 Год назад +69

      we want more teachers who put their lives on the line yea

    • @theoriginalthg
      @theoriginalthg Год назад +11

      @@fromanaltreality1020 Are you being facetious? Probably.

    • @synso6527
      @synso6527 Год назад +7

      You still need to memorize the various formulas, but at least you know what they actually are

    • @Nooop655
      @Nooop655 Год назад +15

      It’s up to the kid if they want to learn. But yeah blame the teacher if your kid is a numbskull who has no future

    • @dabled3
      @dabled3 Год назад +25

      @@Nooop655 wait till you find out others can influence your decision. If the teacher is shit ur not going to want to learn what he teaches but if its a good teacher its going to be your fav thing in school

  • @NotOfBelAir
    @NotOfBelAir 3 года назад +988

    If you have a fun teacher like this . No subject will be hard to study for anyone .

    • @irmrd0t825
      @irmrd0t825 2 года назад +4

      Quantum mechanics: Exists.

    • @sr_pagal
      @sr_pagal 9 месяцев назад

      Are you alive

  • @detherocablest7054
    @detherocablest7054 3 месяца назад +1

    Balls of steel, a profound intellect and so much passion. Much respect!

  • @gehrmandoll4766
    @gehrmandoll4766 10 месяцев назад +3

    What an amazing video and an amazing teacher. You are the type of person who inspires and enriches the next generation. Great stuff!

  • @DaveNerd
    @DaveNerd 3 года назад +1762

    Alternate Title : " When a Physics Teacher Knows He's Tough " !!

  • @Seventschiko
    @Seventschiko 2 года назад +972

    That could've gone horribly wrong, but luckily he did incorporate the gravitational forces generated by his MASSIVE BALLS into this equation. Legend.

    • @LAGGANGGAMING
      @LAGGANGGAMING 2 года назад +26

      Wouldn't have gone wrong

    • @pauleinz9416
      @pauleinz9416 2 года назад +24

      No it could not- if he would not push the object- as he said.

    • @royelkaii
      @royelkaii 2 года назад +17

      You don't get it do you

    • @Seventschiko
      @Seventschiko 2 года назад +44

      Y'all must be fun at parties, lmao

    • @ahmadrosli207
      @ahmadrosli207 2 года назад +8

      Yeah imagine if the panel holding the object dislodged a little bit, sudden tremor/earthquake, badly managed cable, etc.
      Kudos to the guy though but nope! 😂

  • @harkerroland9750
    @harkerroland9750 7 месяцев назад +1

    Every student in that room will remember your lessons sir!! Salute!!

  • @psalms34_18
    @psalms34_18 6 месяцев назад +1

    He reminds me of my dad, who’s also a physics professor. Smartest man and wisest father ❤

  • @greglr19751
    @greglr19751 2 года назад +538

    If all teachers were like him, we would have so many more intelligent people in the world.

    • @philipzhu5194
      @philipzhu5194 2 года назад +39

      If all teachers were like him, some would fail to give a zero initial speed

    • @minorcomet282
      @minorcomet282 2 года назад +25

      @@philipzhu5194 RIP to all the teachers who failed to give zero initial speed

    • @jreecefwb
      @jreecefwb 2 года назад +3

      Grow up

    • @alexperez3367
      @alexperez3367 2 года назад +3

      put in risk own live for attention? like youtubers?

    • @BOOitsaghost
      @BOOitsaghost 2 года назад +17

      @@alexperez3367 its not just for attention, its to demonstrate a real world example so that the students understand that what hes saying isnt just boring, but it can actually be really interesting and maybe prevent people from dying

  • @droogie1991
    @droogie1991 3 года назад +484

    “Physics works and I’m still alive” gave me some nostalgic Portal vibes.

    • @nicocisneros3130
      @nicocisneros3130 3 года назад +2

      I had erased Portal from my memory!!!

    • @stupidiocy
      @stupidiocy 3 года назад +1

      lol, I was gonna comment saying "All this science and still alive - makes me want to play Portal!" but decided to check the comments first. Ah well, guess I'll just have some cake.

    • @HayatoStarGod
      @HayatoStarGod 2 года назад +1

      This next test applies the principles of momentum to movement through portals.
      If the laws of physics no longer apply in the future...
      *God bless you.*

  • @Lion1010NT
    @Lion1010NT Месяц назад

    This is the kind of teacher we all need, He put his life on the line in the literal sense.

  • @vibhutisatija8596
    @vibhutisatija8596 3 месяца назад

    wow everything about him is so endearing! his passion in teaching+ to this youtube channel to show the world how truly amazing physics can be!!

  • @kidzkohmuks5948
    @kidzkohmuks5948 2 года назад +169

    The true teacher can risk his life for one lesson.. that act is heroic

    • @Ichigoyeager.exe1
      @Ichigoyeager.exe1 2 года назад +4

      That is not herioc, that is just risking your life for a thing that can be done in other alternate ways

    • @anushreeray4016
      @anushreeray4016 2 года назад +1

      @@Ichigoyeager.exe1 and kids not able to understand anything

    • @AB-do6vo
      @AB-do6vo 2 года назад +8

      He did not risk his life, he has done this many times.. "students think i risk my life.." he said, "its a demonstration of physics

    • @johnchestnut5340
      @johnchestnut5340 2 года назад +1

      The risk was negligible. The biggest risk was him flinching into the ball. That is why he closed his eyes. I've done this experiment. It is very very difficult to not flinch.

    • @x0cx102
      @x0cx102 2 года назад

      @@anushreeray4016 lewin's students definitely understood the point of this experiment

  • @AJisdabombsauce
    @AJisdabombsauce Год назад +3191

    I absolutely love the squeal that is heard at the end of the presentation!!! Usually it’s a bit embarrassing and frowned upon to make noise during a teachers lecture, but it goes to show the true engagement you have made with your example of physics!! She just couldn’t help but make an anxious noise as you put your body on the line, and the whole room erupts with laughter because of it! Truly a presentation they will never forget, and from that, you’ve made an amazing difference in the world by making us smarter. ❤

    • @lecturesbywalterlewin.they9259
      @lecturesbywalterlewin.they9259  Год назад +92

      apod.nasa.gov/apod/ap230328.html

    • @metaphoria3
      @metaphoria3 Год назад +53

      Or that they didn’t wanna see someone’s face splattered .. w all do respect professor

    • @jarkeeRGB
      @jarkeeRGB Год назад +19

      @@lecturesbywalterlewin.they9259 umm, why did you posted that?

    • @calmingnature-whitenoise6945
      @calmingnature-whitenoise6945 Год назад +10

      or aybe she was worried she was gonna see his face get smashed in :/

    • @thegamerboytgb4350
      @thegamerboytgb4350 Год назад +3

      ​@Lectures by Walter Lewin. They will make you ♥ Physics. Thanks I guess?

  • @huytranquoc5264
    @huytranquoc5264 3 месяца назад +1

    I watch 5 year ago. This is the video that made me passionate about physics (one of the most difficult subjects) and from there I passed university thanks to physics, it pulled me through all other subjects. respect forever

  • @curon_licentia
    @curon_licentia 8 месяцев назад +2

    This is the teaching style that enables the students full attention

  • @shreyabhadra499
    @shreyabhadra499 Год назад +1406

    Remembering my childhood teacher who is just like him...

    • @indymaximus1566
      @indymaximus1566 Год назад +47

      Same… unfortunately he died during one of these lectures

    • @examprep2846
      @examprep2846 Год назад +1

      @@indymaximus1566 fr🙄🙄

    • @user-nm9vf8qy7n
      @user-nm9vf8qy7n Год назад +1

      @@indymaximus1566 ㅋㅋㅋㅋㅋ

    • @FRANK45CASTLE
      @FRANK45CASTLE Год назад +10

      I had a science teacher in high school like this. You cant beat it, they make everything interesting.

    • @The-Cat
      @The-Cat Год назад

      come to find out your childhood teacher really knew how to blow his wife's back out every valentines day and every birthday

  • @exin69
    @exin69 3 года назад +180

    2:45
    Teacher : I might die
    Students : lol

  • @varatharajahabirami7616
    @varatharajahabirami7616 3 месяца назад +1

    You are encouraging us very much to learn Physics. Thank you so much sir.

  • @andreabell5724
    @andreabell5724 4 месяца назад

    The world needs more great teachers ❤️

  • @FantasyTeamAdvisors
    @FantasyTeamAdvisors 2 года назад +628

    Love how the end screen with other videos comes up and almost covers the actual experiement.

    • @MarkButts63
      @MarkButts63 2 года назад +14

      I downloaded the video with RUclips downloader so I could watch it without the recommendations.

    • @iiiiitsmagreta1240
      @iiiiitsmagreta1240 2 года назад +26

      I have never forgiven RUclips for introducing that endscreen feature. I don't know how many years it's been and I don't care, I loathe and detest that thing and will continue doing so as long as it exists.

    • @Anex
      @Anex 2 года назад +1

      @@iiiiitsmagreta1240 you just keep touching the screen and it will disappear.

  • @reach9318
    @reach9318 3 года назад +784

    If he is my prof, i would never skip a single class.

    • @tam6493
      @tam6493 3 года назад +41

      You shouldn't skip a single class in the first place since you paid for it and your goal is to pass all of your courses. Why would you even care if your professor is boring or not, you go to class, learn the objectives, study, pass exams, get the degree. Very straight forward

    • @pilly6548
      @pilly6548 3 года назад +43

      @@tam6493 how will u learn properly if u don't understand anything because the teacher just is a moron who don't know what proper learning is?

    • @kilovolt2494
      @kilovolt2494 2 года назад +26

      ​@@tam6493 I mostly agree with you, except for one little detail. When I was in college, I met quite a few of really useless professors. They talk, they show slides, they give homework. However, I knew this stuff will not get me ready for the exam, because what they teach in class is only 10% of the whole material. You can bombard them with emails, catch before the class, book the office hours, but it will work not always. If the professor is _determined_ not to work, he will continue feed you single-worded answers, like "it's all online", or "ask your peers", etc.
      I skipped classes deliberately when I knew I am not advancing anywhere by attending them. Instead of focusing on something I can read myself faster, I will better sleep or cover more stuff in a book. In most cases, my grades went up because of skipping a class.
      You don't pay only for the class. You pay for credits, exams, homework, and finally, the diploma itself.
      _But_ _that's_ _a_ _completely_ _different_ _story._

    • @January1983_1
      @January1983_1 2 года назад +5

      @@kilovolt2494 wow, thanks for the tips for when I go to college

    • @notabot2351
      @notabot2351 2 года назад +14

      @@tam6493
      Not quite. You don't have to attend every class to get good grades. In many classes, reading the material on your own works just fine. Let's not pretend every class is quantum mechanics.
      That "you paid to be here" argument doesn't work tbh. If you can get the grade and knowledge you want while not showing up, you're not wasting money. I know some professors want to think their class is the most important thing in the universe, but many courses don't require much effort to do well in. It's not the student's fault if a class isn't particularly demanding.
      I even think attendance policies are dumb(in university). If a student can do well in a class while only showing up occasionally, why should they be punished?

  • @doug-goat
    @doug-goat 9 дней назад +2

    I watched this in my 7th grade science class. Today was my last full day of seventh grade, and seeing this makes me grateful that im finally almost done.

  • @AbDirkie
    @AbDirkie Месяц назад +2

    That one guy hidden on the other side of the room: let's give this thing a good push!

  • @ojjuiceman
    @ojjuiceman Год назад +674

    This professor thought he was teaching a room full of students.... Naw this guy is teaching 41 million people, people still watching his lesson today..... Absolute legend.. we need more men and women like this teacher teaching the world for generations.. not just the youth but everyone

  • @justacommenter6612
    @justacommenter6612 3 года назад +529

    teacher: "i might die"
    students: *laughs*

  • @1_Acre_Empire
    @1_Acre_Empire 7 месяцев назад +1

    more teachers need to follow his lead. this is how you teach a class and keep them intrigued and learning

  • @ukeyNHL
    @ukeyNHL 9 месяцев назад +2

    i remember watching this for the first time, good old days

  • @KosmicKoheiAspiringAstronaut
    @KosmicKoheiAspiringAstronaut 2 года назад +730

    This is so incredible. I would have loved to have him as my instructor

    • @peakxv13
      @peakxv13 2 года назад +2

      He has a RUclips channel. You can go through it.

    • @Yukzula
      @Yukzula 2 года назад +1

      @@peakxv13 you're already hear bud

  • @lucasseakins8920
    @lucasseakins8920 6 месяцев назад +3

    The ball should in theory “lose” some energy through heat and sound, and thus, not convert enough energy to hit him. Bravo!

  • @rob-time
    @rob-time 6 месяцев назад

    I love teachers who can explain science visually. Words were not required for this experiment.

  • @davidwilliss5555
    @davidwilliss5555 2 года назад +958

    We had a physics professor who got around with the use of the old style crutches that have cuffs that clip to your wrists. He once did a demonstration on inertia where he carefully climbed onto a wheeled platform and then by shifting his body weight, could make the platform move. Problem: The floor in the lecture hall was not level and he ended up rolling out the door and into the hallway. I suspect he knew this would happen and did it for comedic effect, but it was still hilarious.

    • @jeffo4817
      @jeffo4817 2 года назад

      No he was just dumb

    • @soulatte8902
      @soulatte8902 2 года назад +12

      your physics professor sounds like an absolute legend

    • @Mr12Relic
      @Mr12Relic Год назад

      There was once an engineering professor who would throw himself at the safety glass windows in a very tall building to demonstrate that it won't crack or shatter because it's specially designed to withstand much more significant forces. This worked every time but once. The pane of glass remained perfectly intact but popped out of its case.

  • @volishona
    @volishona 2 года назад +198

    He loves his subject so much it makes me cry.

  • @muniraabdullahi6375
    @muniraabdullahi6375 5 месяцев назад

    teachers like this make you discover your love for subjects,this is the reason that you try to understand,Bravo

  • @KenBeaconHill
    @KenBeaconHill 6 месяцев назад +1

    "physics works - and I'm still alive". Excellent. I love great teachers.

  • @alnimri
    @alnimri 2 года назад +214

    The irony of watching this instead of studying for a physics exam.

    • @abhishekjoseph9346
      @abhishekjoseph9346 2 года назад +6

      And still hate physics 😂😂😂😂

    • @shaashvatbhor1642
      @shaashvatbhor1642 2 года назад

      Ayo remember distance = speed x time

    • @whiterabbit8243
      @whiterabbit8243 2 года назад +1

      i hate physics glad i changed to an online university, so i dont have to take it anymore. forcing us CS majors to do physics 1 & 2. bleh...

  • @Zelphyn
    @Zelphyn 5 месяцев назад

    Spectacular teaching performance! 👏

  • @Pakos-Terimos
    @Pakos-Terimos 4 месяца назад

    I love that kind of teacher. It was a pleasure.

  • @edgarzatikyan2922
    @edgarzatikyan2922 3 года назад +253

    “I will close my eyes. I do not want to see this.” 😂🤣

    • @Leukefilms
      @Leukefilms 3 года назад +5

      When I closed my eyes.. I see a flying chair and a laughing chimney

    • @Rai_MP
      @Rai_MP 3 года назад

      bUt iF yoU cLOsE yOUr eYEs

  • @RavenclawNimbus
    @RavenclawNimbus 2 года назад +374

    “Physics work, and I’m still alive!”
    *forgets to stop the ball, and crushes his chest instead

    • @ohshanana2397
      @ohshanana2397 2 года назад +11

      he walked forward so by the time it came back it would’ve hit either his crotchety or thigh area

    • @scott_xd_
      @scott_xd_ 2 года назад +1

      @@ohshanana2397 or maybe the ball would hit his balls

    • @TheWorldSpinsSlowly
      @TheWorldSpinsSlowly 2 года назад +13

      @@ohshanana2397 OOF. that's gotta hurt

    • @Charnutboy
      @Charnutboy 2 года назад +5

      @@ohshanana2397 *femur breaker scream*

    • @Iseihyoudo
      @Iseihyoudo 2 года назад

      @@ohshanana2397 nutcracking intensifies

  • @jacquelinedavis6607
    @jacquelinedavis6607 4 месяца назад

    As a second grade teacher we explored the concepts of kinetic energy and how it relates to a roller coaster. I never took physics, yet his demonstration was easily understood. All I knew in watching his powerful concepts put into action was that visual teaching is immensely helpful to visual learners. Like me.

  • @JustRacketSports
    @JustRacketSports 8 месяцев назад

    Thank you so much! I am in 8th grade right now and doing a science project. All of this information is really helping me put together a strong thesis for how pendulums can best simulate perpetual motion!

  • @ViaRosalesVlogs
    @ViaRosalesVlogs 3 года назад +667

    Ball: I'm a bout to end this man's career
    Physics: nice try.

  • @DragoniteTrainer
    @DragoniteTrainer 2 года назад +73

    3:16 physics works and I am still alive

    • @groovepad_records
      @groovepad_records Год назад +11

      Omg we watched the same video 👁️👄👁️

    • @cespyy
      @cespyy Год назад +9

      ​@@groovepad_records bro in mine he just died

    • @ZaheerKhan78647
      @ZaheerKhan78647 Год назад +6

      ​@@cespyy no way?! i saw him fly off at the end

    • @Anakin_Sandy_High_Ground
      @Anakin_Sandy_High_Ground 8 месяцев назад +1

      Yes that’s what he said

    • @RohitchaharXD
      @RohitchaharXD 5 месяцев назад +1

      in mine, he broke the wall, became a rocket and escaped the earth, guess physics works different in our universe.

  • @toomanycactus3138
    @toomanycactus3138 9 месяцев назад +2

    Man I love your style. I threw a balloon into a fan the other day and it blew my mind when I learned (to a degree) what made it stay there. Now I’m teaching myself math to maybe go somewhere in that direction.

  • @fidanaliyeva4534
    @fidanaliyeva4534 4 месяца назад

    I bow down before courage and determination of this person in what he does and before his extreme devotion to his work! I know perfectly well that if I'd have such teacher from Physics in my school, probably I'd be a well-known scientist by now. God Bless You, Dear Teacher! And please, do take care of yourself and of your health, for such teachers like you are very necessary nowadays! 🙏🏻🌟🌟🌟🌟🌟

  • @haydencarn8737
    @haydencarn8737 Год назад +546

    This is so darn epic, I wish there were more teachers like him.
    He would have made school very interesting.

    • @gridlock2958
      @gridlock2958 9 месяцев назад +29

      "Man school was boring. None of my teachers ever risked their lives for my entertainment"

    • @venugopalan6902
      @venugopalan6902 8 месяцев назад +10

      Man really said teachers should risk their life for teaching students

    • @glitchlord9720
      @glitchlord9720 5 месяцев назад

      @@venugopalan6902I agree it is a bit weird to expect that, that’s why instead my physics teacher made us do that, he’s call us up and ask us if we believed in the conservation of momentum and tried to see if we would flinch, he’s awesome

    • @jouhanon
      @jouhanon 5 месяцев назад +1

      There used to be, but they pushed…

    • @ARTDEVGRU247
      @ARTDEVGRU247 5 месяцев назад +4

      ​@@gridlock2958how was he risking his life? He knew what he was doing.

  • @heyitzdaredevil8305
    @heyitzdaredevil8305 2 года назад +77

    Imagine if he sneezed when it was coming back.

    • @urfavleo07
      @urfavleo07 2 года назад +1

      R.I.P. THAT PROFESSOR

    • @trollconfiavel
      @trollconfiavel 2 года назад

      Simple harmonic motion
      He wouldn't die anyway

  • @WisdominBangla
    @WisdominBangla 9 месяцев назад +1

    He's the teacher we all need.

  • @linedanzer4302
    @linedanzer4302 5 месяцев назад

    This is someone who is totally confident in their knowledge of their field. I am so impressed!

  • @johnwilson1784
    @johnwilson1784 2 года назад +439

    When this guy was a child, Anytime he failed a test, his Teachers went to summer school.

    • @kittygiatanidon4980
      @kittygiatanidon4980 2 года назад +4

      Lol what

    • @mybuttsbeenwiped666
      @mybuttsbeenwiped666 2 года назад +3

      wrong person that was Chuck Norris your thinking of

    • @carultch
      @carultch 2 года назад

      @@mybuttsbeenwiped666 I think the OP is implying that he is the Chuck Norris of Physics.

  • @marwanreaper2716
    @marwanreaper2716 8 лет назад +388

    I've watched this about 6 times and it amuses every time,I absolutely adore this guy.

  • @jameskyeong4029
    @jameskyeong4029 11 месяцев назад +2

    "Physics works and I'm still alive !" What a legend

  • @GraveK-dx3qo
    @GraveK-dx3qo 10 месяцев назад

    thank you sir your one of my favorite physics teacher. Thank you for your lectures.

  • @nickmatthews7882
    @nickmatthews7882 2 года назад +394

    This guys makes me regret not going back to school he just makes you wanna learn something

    • @TheSeth256
      @TheSeth256 2 года назад +22

      Don't worry, that's not the kind of person you'd most likely encounter at school.

    • @iconicgaming1668
      @iconicgaming1668 2 года назад +7

      Right. Makes me to try to go through basics in free time, and practical application.

  • @osmanbaba1485
    @osmanbaba1485 3 года назад +67

    Would be so funny if he said
    “If it crushes me, please delete my search history”

  • @ApurboAntor-px9my
    @ApurboAntor-px9my 8 месяцев назад

    Sir You're really a great personality... ❤️

  • @iurigomes603
    @iurigomes603 6 месяцев назад +1

    This teacher is a absolute fucking LEGEND

  • @LTCantyInc
    @LTCantyInc 2 года назад +812

    I miss his lectures so much!!! They were posted here on RUclips for a while. I’m not sure if they are anymore, but he is one of the reasons I love physics!

  • @skeletur5529
    @skeletur5529 2 года назад +355

    Finally a teacher who makes class entertaining, I've watched the whole thing without even looking away, There are still some amazing teachers in the world.

    • @Mysterioo69
      @Mysterioo69 2 года назад +2

      Nobody asked!

    • @minohatsura7882
      @minohatsura7882 2 года назад +16

      @@Mysterioo69 I asked.

    • @dhruvpawar3733
      @dhruvpawar3733 2 года назад +2

      yeah but this is what almost every 7-8 grader knows , you need to be able to do calculus and solve complex stuff that is real physics

    • @dionysosalters3145
      @dionysosalters3145 2 года назад

      More than you think ;)

    • @TheRealDeathmatch
      @TheRealDeathmatch 2 года назад +4

      @@dhruvpawar3733 I'm in grade 9 and this stuff was news to me, granted I'm autistic and space out a lot but still

  • @robm321
    @robm321 5 месяцев назад

    Teachers like this are pure gold.