My Million$ Video - Angular Velocity vs Angular Frequency - it's a MUST
Пікірлер: 415
@arushramteke7306 жыл бұрын
Professor, sir, I just want you to know that you have helped millions gain an intuition for things they never could have imagined possible, and I, amongst many many others, am truly indebted to you. Thanks a lot for all the help you have provided when my teachers couldn't answer my question "WHY" countless time. Love from Singapore :)
@lecturesbywalterlewin.they92596 жыл бұрын
thanks for your kind words
@steveplayzytreal6 жыл бұрын
I love it when u say hello hello hello
@melodious5946 жыл бұрын
steve and gaming Me too
@georgeclooney6208 Жыл бұрын
Bro me too, I have an exam on Tuesday
@billrussell39556 жыл бұрын
You are truly the best physics teacher I've ever had the privilege to learn from. I've watched many of the old MIT lectures and enjoy seeing your home classes! You are right about making physics fun and interesting! Love you very much and appreciate all you've done and are doing Dr. Lewin!
@bidhankhirali6 жыл бұрын
sir even before this i have already pledged that i will be thanking u for all my life..this is one more..u have been awesome professor for me..
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@bidhankhirali6 жыл бұрын
sir..how are you..? sir i have a question that how moon is getting away from earth.???
@lecturesbywalterlewin.they92596 жыл бұрын
*don't be lazy,* use google!!!!
@bidhankhirali6 жыл бұрын
oh no sir..didnt find anything suitable..sir how moon is defying gravitational pull from earth??? sir plz..
Thank you for covering this! I was literally asking myself this question 15 minutes ago. You're a grade saver.
@MrSalman1086 жыл бұрын
Physics for everyone Progress for everyone
@nikhilsamdariya34216 жыл бұрын
Really worth million dollar !!!
@lecturesbywalterlewin.they92596 жыл бұрын
make that 2 million
@stevelarry1543 жыл бұрын
@@lecturesbywalterlewin.they9259 now worth 45,943 million as of today for everyone who had since viewed it
@ReflexionDemocracia3 жыл бұрын
This is the 1 billion dollar video..... Santiago Mexico (67) Engineer 1975, MBA at Wharton 1978. Acoustician . Best teacher ever had !! Thank you
@RatanKumar-rc5sd6 жыл бұрын
Million dollar... It Deserves.... Keep making us prosperous.. Thanks
@Himanshu99278 ай бұрын
Wao × infinite..great great great.... thanks word is so small for you sir
@sourabhsinha63216 жыл бұрын
Its not million dollars, its priceless. And so you are, I want to be a teacher like you . Love you
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@mementomori14024 жыл бұрын
Thank you, Mr. Lewin, you're my hero!
@GustavoMerchan796 жыл бұрын
Dr. Lewin, great clarification!! I suggest you add "angular velocity vs angular frequency" (or something like that) somewhere either in the video title or in the description, so it's easier to find...
@lecturesbywalterlewin.they92596 жыл бұрын
I did
@livintolearn70536 жыл бұрын
1:08 Yup...he's gettin' mad. I love this part.
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@theDgrader6 жыл бұрын
Thanks so much Professor Lewin. You are Physics
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@theDgrader6 жыл бұрын
:)
@sahelirakshit51486 жыл бұрын
I shall be grateful forever.... Thank you so much Prof. Lewin 😊
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@louiswilson62156 жыл бұрын
Oh man, you explained it crystal clear. Thank you, Professor!
@Gradonlee6 ай бұрын
It's truly worth million dollar, thank you professor!
@estevaobulhoes89505 жыл бұрын
Thank you, Sir! That was exactly what I needed.
@amanjyotijatta20852 жыл бұрын
He's exactly looking the same what I imagined a physics professor as.
@Nova-Rift5 жыл бұрын
What a sweet guy,, teaching us all for free
@_HarshvardhanTalwar3 жыл бұрын
It's a billion dollar worth professor! Thank you very much for the clarification 😊
@sameer261219806 жыл бұрын
Awesome explanation! People who disliked this video might have been previously watching Lady gaga songs too much and bumped into this video. I cannot blame them.
@jameswilson82705 жыл бұрын
I love your clothing style, Professor Lewin. Also, nice video :)
@rohitbhosle65216 жыл бұрын
You are right ...need to watch video more than once !!!!🤘🤘🤘REALLY MILLION $ VIDEO!!!!!!!!!THANK YOU PROFESSOR
@rajamaheshwaran15354 жыл бұрын
Great Professor Lewin 👍 you always great, my prayers for your good health.
@rjplays23316 жыл бұрын
Thank you Mr. Lewin you made me love physics :)
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@rjplays23316 жыл бұрын
thanks for replying :)
@johnhendrickson21755 жыл бұрын
This distinction was definitely glossed over in my physics class. Thank you for clarifying!
@kratostheinevitable3932 Жыл бұрын
amazing thanks. clicked on the 2nd example.
@anweshbhattacharya80175 жыл бұрын
Angular velocity can be defined for any angular motion, which may be periodic (maybe SHM or no) or may not be periodic. However, angular frequency is only defined for periodic motion. This periodic motion may or may not be SHM. However, this angular frequency is solely defined by the time period (2pi/T) and as time period is characterises ANY periodic motion, angular frequency is constant for ANY periodic motion. The case where angular velocity and angular frequency match is the case of constant circular motion. Angular velocity is a constant as equal angles are covered in equal times. In essence, 2pi angle is covered in T. But this is also a periodic motion and hence the definition angular frequency also applies. As the time period is T, angular frequency is also 2pi/T and it turns out the two quantities are the same. Sir, is my explanation accurate?
@guacamole31094 жыл бұрын
I think so! Well said.
@LadderVictims2 жыл бұрын
Perfect!!!!!
@jatinb49062 жыл бұрын
As much as I can think, to define angular frequency of a motion , the motion has to be SHM. Can you give example of a Motion which is not SHM but still we can define its Angular Frequency? You wrote, "angular frequency is constant for ANY periodic motion". i'll try to disprove it with an example. eg.= a car moving in a linear path but in periodic motion. I think noone can calculate Angular Frequency of Linear periodic motion.
@ernestoberges63744 ай бұрын
Dear teacher: Thank you very much for your videos and such beautiful explanations. Greetings from Argentina
@lecturesbywalterlewin.they92594 ай бұрын
Glad you like them!
@thoranitnavarat9122 Жыл бұрын
Bravo Monsieur Prof.
@sanaiqbal4593 жыл бұрын
I appreciate, I am the one who is not impressed by others as much easily but you respected sir is the one by whom i am impressed in life.You're Brilliant Masha Allah. Thanks for teaching us, for sharing knowledge and ofcourse concepts. May God bless you
@oceanheart62874 жыл бұрын
Today I got to know why you are the best because you have the crystal clear concept when I was in high school I used to mug up the reason never tried to for the reason and that is my biggest fault,,,I need your blessings sir you and your concepts are just awesome.
@lecturesbywalterlewin.they92594 жыл бұрын
:)
@casitis45693 жыл бұрын
*simple harmonic motion can be described as the projection along a diameter of uniform circular motion(U.C.M)*.As the reference point in U.C.M completes one revolution the S.H.M complete one cycle as well,so time period and frequency of both U.C.M and S.H.M points are same.Angular frequency is simply the speed of reference point in U.C.M (that is angular speed).Now this is called *angular* frequency of S.H.M to signify it's connection with the U.C.M.
@jeff70374 жыл бұрын
Thanks. I have watched your physics lectures which are really to inspire my physics senses. (A physics scenery is that you demonstrate the wheel turning by you standing on a rotatable chair is really sparking my eyes.) That is a good help. Your clothes is good and colorful on this video. I found your head spontaneously shaking in this video and this makes me search Wikipedia about you. I wish your body healthy. I like your loudly emphasizing the points of physics. It is clear and humor in every physics video lectures. Really really thanks. 👍👍👍👍👍🙂🙂🙂🙂🙂
@jeff70374 жыл бұрын
About this lectures kzfaq.info/get/bejne/mahoerGC2t-xgJc.html, I want to know more about how geometry make the body have a specific velocity distribution. Dose professor have any reference or books for recommending to study? I want the book list you have read about physics. I have fully reviewed my text books-Dynamics. But, I want to know more advanced books about discussing them.
@lecturesbywalterlewin.they92594 жыл бұрын
I cannot add to the clarity of my 8.01 lecture in which I discuss in great detail this demo.
@jeff70374 жыл бұрын
Lectures by Walter Lewin. They will make you ♥ Physics. Thanks my dear professor. I should review 8.01 lectures each of them either. 👍😄
@ankittripathi53293 жыл бұрын
sir the dedication and passion you have for teaching is upto different level ,i have no words to say because they are less as compared to your efforts thanx a lot ❤️
@lecturesbywalterlewin.they92593 жыл бұрын
So nice of you
@samarthsai95306 жыл бұрын
Apart from the absolute greatness of this video, nice tie sir, And I think I recognize the pattern, I think it's on one of your salt shakers as well. Great design.
@ritammandal1312 Жыл бұрын
Thank you sir, You are truly the GOAT. You made me fall in love with Physics.
@drprashantafmc90603 жыл бұрын
Sir you r world's best physicist...love from india .
@jackmaxwell3134 Жыл бұрын
Thanks! So much clearer than all the answers on Quora! (They are all so misleading, even from “Masters in physics”, “teachers in physics” etc.)
@InventTwig6 жыл бұрын
Thank you , I'm now definitely a millionaire :)
@haneenahmedbahaulddin4 жыл бұрын
Thank you all the way from Iraq sir this is the first video of your channel which I watch and I'm in love with it!! I wish I was your studentt💎
@renephilipsen63816 жыл бұрын
Beste Walter Lewin, professor als geen ander. Onze zoon is nog maar net 10 jaar oud en hij geniet nu al van uw video’s. Wijzelf genieten er ook van en steken er nog wat van op ook. Nog nooit heeft iemand ons beter weten te bereiken en te boeien zoals u dat voor ons deed. Uw video’s zullen ons volgen tot ver in de toekomst. Veel liefs….. wij die genieten van u.
@lecturesbywalterlewin.they92596 жыл бұрын
Dank voor je lieve woorden. Ik was 3 maal op De Wereld Draait Door. Mogelijk zijn deze videos ook interessant voor jullie zoon kzfaq.info/get/bejne/b7WDiM2Z17TLiYk.html kzfaq.info/get/bejne/nMmcmJiXlZapeIE.html kzfaq.info/get/bejne/rK6cnb1opqeRl4U.html kzfaq.info/get/bejne/m5-ZnrBmmODGaac.html
@lecturesbywalterlewin.they92596 жыл бұрын
we krijgen vandaag een major snow storm 30-50 cm sneeuw - ook sterke wind. De Oostkust van de VS is paralyzed. Schools are closed even MIT.
@renephilipsen63816 жыл бұрын
Ja dat was een mooie uitzending en hebben deze natuurlijk niet gemist. Ik ben samen met onze oudste zoon van 10 een miniboekje aan het schrijven met de titel "gedacht-experiment" het onderwerp 'voor de oerknal?'. Wat zou daar aan vooraf zijn gegaan, heerlijk om je daar in weg te laten zakken in z'n gedachte-experiment. Daar komen heel leuke verrassingen uit. Het is leuk om te zien hoe een jong persoon als onze zoon nog vrij is in gedachten, ikzelf ook trouwens. En natuurlijk laten wij ons inspireren door uw beeldende verhalen en lessen. Dank maar weer en we volgen de weer berichten ook hier in Holland.
@duckyoutube6318 Жыл бұрын
5:52 Very simple to understand. Just need to work out a few problems now to really cement this technique and avoid the confusion of the notation. Thanks Professor!
@androidedison6455 жыл бұрын
Thank you sir... My confusion is cleared (just like you said) once and for all. 😊
@billrussell39556 жыл бұрын
Great video! Currently I'm considering Chirality and the formulas you presented. If you could do a lecture on chriality on a torus geometry considering it with Quarternions and Hamiltonian Mechanics I would be grateful. It could be made into a set of videos. Thanks for considering the idea and my very best wishes to you, regardless of whether you do it or not.
@sunir95003 жыл бұрын
I was having headache due to this confusion from past two days. Thanks a lot for help.
@MakeMeScientific5 жыл бұрын
Simply awesome #makemescientific
@iamimagination965 жыл бұрын
Thank you professor very much. It helped me to eradicate my confusion.
@biswaroopjoarder81356 жыл бұрын
Walter Lewin, Sir I do think there's an indirect connection between the two. Take any SHM and draw an equivalent phasor diagram of the situation... The angulat velocity with with the phasor will be rotating will be EXACTLY the same as angular frequency in magnitude... i guess that's why they have similar symbols too.
@lecturesbywalterlewin.they92596 жыл бұрын
yes, ofcoz there is a connection. The projection of a uniform circular motion on any straight line in the plane of that motion is a SHM. I demonstrate that also in one of my lectures. The fact remains that w_t at a given moment of time in a pendulum is only related to w in cos(wt) in a very very opaque matter which causes great confusion. theta_t=theta_max*cos(wt). w_t=-w*theta_max*sin(wt). brrrrrrrrrrrrrrr
@biswaroopjoarder81356 жыл бұрын
Lectures by Walter Lewin. They will make you ♥ Physics. that's right. Even I was confused initially when I studied SHM for the first time last year. LOL😆
@arbritauka6 жыл бұрын
Just 👏👏👏👏(especially for your explaining and of course you have a lot of compliments from me for your "modern-classic-popular" style)And we are the richest students because we have You in our life!THANK YOU :)
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@manyasharma82565 жыл бұрын
I am not great with words but THANK YOU SO SO MUCH especially for these problems' series , ( but I at least wanted to be big with them )
@sahil95472 жыл бұрын
Yeah, it sure is a million dollar video... Thank you sir, it'll be with me for rest of my life
@alikhalil24756 жыл бұрын
I never see you Mr Walter....I never been in USA...But i think you are great guy have alot of knowledge...best wishes.
@tirejadararjenrojda3 жыл бұрын
many thanks porofessor. greet with respect.
@juancarlospachecoortiz80686 жыл бұрын
got to love the passion he puts into this
@brotherstech3901 Жыл бұрын
These examples made me understand 😊 thank you sir
@manuferre71862 жыл бұрын
It's amazing Walter. So basically we can say that the angular velocity is used to describe the angular motion in the same way as x, y or z is used for linear motions. However, the angular frequency is just a shorthand way of measuring "timing" in cyclic processes (indeed the frequency of this periodic phenomena), and therefore in general terms they have nothing to do with each other (only if there is a completely linear dependence with a constant angular velocity). Thank you very much, and of course I will remember for the rest of my life this lecture when I have rotational problems to solve. Thank you one more time my friend ;)!
@lecturesbywalterlewin.they92592 жыл бұрын
*freq iss not t*
@manuferre71862 жыл бұрын
@@lecturesbywalterlewin.they9259 oh yeah, I didn’t put that t, it was a keyboard’s mistake I will edit it haha. Thank u!
@vidhiruparelia24913 жыл бұрын
this was a life saver!!! thank you sir👍
@coffeetoast61474 жыл бұрын
thank you so much for your video. it was just EXTREMELY clarifying
@prakashsahu4332 Жыл бұрын
Thank You so much, professor.
@lecturesbywalterlewin.they9259 Жыл бұрын
You are very welcome
@darrylwilard30976 жыл бұрын
Hi Professor Irwin It is great to see you again. Just want to let you know that I was watching a lecture about kinematics in 1Dimension also in 2 Dimension. The course is on mechanics on edX from Rice University, when the lecturer measured the displacement by a meter stick, he didn't give the uncertainty at all. He just had the length he measured but no uncertainty. You always say that the measurement is meaningless without the uncertainty. You are looking great my friend and take care.😊😊😊
@lecturesbywalterlewin.they92596 жыл бұрын
That's how physics is taught at high schools.The Rice Professor is clearly a poor teacher (even incompetent); edX should not have offered this course. However, edX may not have know this.
@TejasKd221B6 жыл бұрын
Prof Lewin.... The person teaching that course is Prof Jason Hafner. I do not think it is right on your part to call him incompetent. I am a huge fan of yours but I really like Prof Hafner, too. I learnt Electricity and Magnetism from his course and it was absolutely fantastic. Just because he didn't tell the uncertainty in measurement, I do not think you can conclude that he is a poor teacher. It is like saying, if a student gets ONE problem wrong, he is incompetent. That is not a rational conclusion, dear sir.
@lecturesbywalterlewin.they92596 жыл бұрын
At Hafner's request, I did a video for him that he showed to his students. It's in my You Tube Channel. kzfaq.info/get/bejne/guCEkryLld6ndo0.html OK I will not call him incompetent but I will call him sloppy, and chances are that he will continue to be sloppy when he makes measurements.
@lecturesbywalterlewin.they92596 жыл бұрын
I know Jason Hafner. He once asked me to do a video for him to show his students. It's now on my KZfaq channel. kzfaq.info/get/bejne/guCEkryLld6ndo0.html As far as making measurements without uncertainties, I will call him sloppy and chances are that he will continue to be sloppy whenever he makes measurements. He thereby fails to teach his students one of *THE MOST IMPORTANT* concepts of all of Physics.
@squarerootof26 жыл бұрын
Darryl Wilard So, who's Professor Irwin? I assume you meant Lewin?
@karlos79474 жыл бұрын
Thank you very much
@prabhnoorsingh3493 жыл бұрын
Just want to say..... “jahapna tusi great ho”. ....LOVE YOU SIR......🙇🏻🙇🏻🙇🏻🙇🏻🙇🏻🙇🏻🙇🏻
@honestman2763 жыл бұрын
May Creator make you live long to serve the students in this world.
@allawanmusa4873 Жыл бұрын
Thank you!!!
@AnkitSaxenaMech6 жыл бұрын
undoubtedly, million dollar lecture. salute you, sir.
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@JarredDavidson Жыл бұрын
Thanks as always professor!
@abhishektiwari76433 жыл бұрын
Sir your way of teaching is so much awesome,such that I understand the concepts in one shot Thank you very much sir
@zahoorkarim26874 жыл бұрын
Always love to watch your lectures 👍
@adityathakur74234 жыл бұрын
Thanks 🙏🙇sir, you are really a great legend.........
@malay200420034 жыл бұрын
Indeed it is worth a million dollar ! Respect for you surpasses all imagination ! it's a limiting case tending to infinity !
@mainakmazumder65365 жыл бұрын
It hit me in the face like an airbag! Although no one in my class told me the difference ever but I imagined it somehow instinctively, never have been able to put the finger on the right spot. That helped.
@exeplorerr52546 жыл бұрын
Thank you professor, it's been a pleasure to be your student.
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@tasninnewaz67906 жыл бұрын
My dear sir, God bless you.
@shariqlectures7927 Жыл бұрын
Thank you so much Sir ❤❤.. Now we are friends 💖💖💖💖
@lecturesbywalterlewin.they9259 Жыл бұрын
Yes we are
@gauravyadav-qi1bh5 жыл бұрын
I understood and like the video. Thank you, Professor.
@ullasrajs35373 жыл бұрын
This is a million-dollar video. Loved it Sir
@bernhartschmieder16326 жыл бұрын
you are a great inspiration professor. I love to watch your videos :)
@surendrakverma5552 жыл бұрын
Excellent 🙏🙏🙏🙏🙏🙏🙏
@lecturesbywalterlewin.they92592 жыл бұрын
Thanks a lot
@SulemanKhan-dg3mh Жыл бұрын
Thanks a lot sir...!
@praveensharma96903 жыл бұрын
Thank You Sir
@honestman2763 жыл бұрын
Thanks. From Bangladesh.
@alirezanabavian771 Жыл бұрын
Dear professor plz specify the acceleration of uniform angular speed...although at constant speed there exist tangential acceleration and radial acceleration orthogonal to it. Hence when you said constant velocity I got the impression that it derivative is zero but I had thought otherwise....plz specify one more time how accurate I might be....I really thank you for your time as one of the greatest in the field...
@StraightThread6 жыл бұрын
Thank you! I wish I'd had your explanation forty years ago. :) Better late than never.
@MaheshSharma-dy6sq4 жыл бұрын
thank you , professor for clearing this misconception
@lecturesbywalterlewin.they92594 жыл бұрын
:)
@Yatukih_0016 жыл бұрын
I thank you for this Million dollar video for the rest of my life!
@tablit26036 жыл бұрын
All respect for u prof .... my oxygen is ur videos
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@ebeb91565 жыл бұрын
Will give my right hand fot semester with someone like Mr.Lewin
@lecturesbywalterlewin.they92595 жыл бұрын
:)
@rajatyadav66813 жыл бұрын
Thankyou sir for such a good video
@lecturesbywalterlewin.they92593 жыл бұрын
Most welcome
@soumyasengupta59416 жыл бұрын
The concept was really confusing before I watch that video.But now I get some idea about angular velocity and angular frequency.
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@omarmuhamed66375 жыл бұрын
thank you very much ,really this video deserves million dollars ❤️❤️❤️❤️
@lecturesbywalterlewin.they92595 жыл бұрын
:)
@vkv3924 жыл бұрын
thank you professor . it's more valuable to me..... you are really a boon to every students....
@lecturesbywalterlewin.they92594 жыл бұрын
Glad to hear that
@ascyrax85075 жыл бұрын
Love you, Proffesor Lewin....
@ayushdhingra8553 жыл бұрын
It consfused me a lot thanks proffesor
@gokulkrishna26216 жыл бұрын
thank you professor... I had this doubt in my mind for weeks.... yay... I just became a millionaire!!!!!!
@lecturesbywalterlewin.they92596 жыл бұрын
:)
@gandhipolai8616 жыл бұрын
Sir you are the best ..... i wish i could be a student of yours ... 🙏🙏🙏🙏🙏🙏