Sir I'm reading in class 9th now and I have a Question that in the case of Heisenberg uncertainty principle we take after the > or equals to.. as Planck's Constant ÷ by 4π or 2π...so why we also take 2 pi instead of 4 pi.....sometime?....
@@lecturesbywalterlewin.they9259 I am surprised that you have made a video on 11th APRIL 2023.(THAT WAS ON WHY YOU SHOULD EAT YOGURT BUT NEVER ON FRIDAYS).
@@lecturesbywalterlewin.they9259 NOW AFTER WATCHING THAT VIDEO, I AM APOLOGISING TO YOU THAT I WILL NEVER ASK THIS BIZARRE QUESTION TO ANYONE . CURE OF SELF PROBLEM IS TO ANALYSE IT WELL. THANKS SIR
"A train is approaching at a speed of 80, while another train is behind it, traveling at a speed of 150. When the train with a speed of 150 overtakes the train with a speed of 80, what is the name of the father of the driver sitting inside the engine of both trains?"
Hi Sir, After seeing your electromagnetism lectures i wrote government Assistant Electrical Engineer Exam,but lost with 1 mark😢 ,But you have increased my curiosity about laws of nature over laws of humans, please reply me with small suggestion for sustaining my curiosity to learn laws of nature , currently my age is 25 (age of distraction)..........❤ From India
Hello sir i am anirudh singh and i live in india, i have recently started watching your lectures and my love for physics has been more then ever your lectures will be very big part for my journey for knowledge can u pls bless me for my future that i will be spending mostly studying and exploring my love for science,even a some small advice or a blessing will mean a lot to me sir . thanking you your student anirudh from India
Unlock the treasures of timeless wisdom and discover the path to inner peace and personal growth by diving into the profound teachings of the Bhagavad Gita. Embrace its guidance to navigate life's challenges with clarity and equanimity, fostering resilience and spiritual evolution. Let its universal values of compassion and selflessness illuminate your journey towards fulfillment and harmony. Open your heart and mind to the transformative power of the Bhagavad Gita, and embark on a journey of self-discovery and enlightenment.
Sir , is transmitting electrical power through air possible? I am just curious to know that since Tesla did it in the 1900s and his idea of wireless electricity is developing in china right now . So please tell me the answer to it . If possible please tell me the dangers we could face if we were to invent the wireless electricity
sir love from india and i want to tell you that i think your showcase goes wrong which hace 3 ball i dont have an perfect idea that what is that instrument called
Each degree is subdivided into 60 minutes. Each minute is composed of 60 seconds. Said differently, an arc-second represents the distance of latitude or longitude traversed on the earth's surface while traveling one second (1/3600th of a degree).
Sir i am a neet aspirant from India and i am having problem in physics but still i hve a desire of getting somewhere near full mark and i hve only 20 days to achieve it so sir if possible i want a little motivation from you, may be it will help me a lot in this short journey Physics is 💕
Hello sir, may I know how you get keith's video solutions? If he has a separate youtube channel can you please share the link? I really wanna appreciate his work.
Don't feel sad. I wonder why you wear that fur hat. If it is cold, you can drink a cup of tea with your fur. I would like to drink a cup of tea with you, Walter Lewin.
@@lecturesbywalterlewin.they9259 I have many different hats too. Once I was addicted by hats. Walter, I have a shepherd- hat, I don't need it, but I can't let it go. My shepherd hat is made of Tweed wool.
Sir, please accept Islam. Trust me after death, you will realize that what I was saying is no doubt 100 percent correct. On the day of judgement, you will be alive again infront of Allah. If you have questions regarding Islam, search Muslim's answers to atheists.
I have read the quran and the bible after which I decided to remain an atheist. The freedom of relligion is the corner stone of all civilized religions. They were all created by people out of fear (largely fear of death). That's why people invented after life and heaven. I respect what you believe in, I trust you respect what I believe in.
@aperson Are you being for real ?? I laughed reading your comment..😂 How desperate you are to convert him to Islam. Regarding death you are saying it with such sureness as if you have experienced it. 😂😂
Sir i am aspiring to become a aerospace engineer but the salary of an aero space engineer in isro is very low should i focus on money and take any other groups or i like the concepts in aerospace engineering so i should pursue it and understand the concepts sir kindly reply sir
Lots of love from india and thanks for your wonderful practical lectures they help me a lot to increase interest and love for physics ❤😊
New to your channel. Great info, thank you for the physics ❤
Love from India❤ 🙏
Eid Mubarak sir🎉
Sir i want to live in your era❤
Prof what's the secret of building that self driven pendulum oscilating in the background it could give me an idea to a super project this year.
Sir I'm reading in class 9th now and I have a Question that in the case of Heisenberg uncertainty principle we take after the > or equals to.. as Planck's Constant ÷ by 4π or 2π...so why we also take 2 pi instead of 4 pi.....sometime?....
google Heisenbergs' Uncertainty Principle
∆x.∆p ≥ h/4π
=> ∆x.∆p ≥ ħ/2
ħ (h-bar) itself represents 'h/2π', which when divided by 2, gives h/4π.
@@PainofTheaction there is also a similar ∆E.∆t relationship
Thanks from iraq ❤❤❤
Sir ,i am in 9th standard . How can i become a math wizard ? May you give me some tips to increase my understanding in mathematics ?
eat yogurt every day but *never on Fridays*
What!
Give us a valid tip sir @@lecturesbywalterlewin.they9259
Practice Mathematics as much as you can ...that's the key
@@lecturesbywalterlewin.they9259
I am surprised that you have made a video on 11th APRIL 2023.(THAT WAS ON WHY YOU SHOULD EAT YOGURT BUT NEVER ON FRIDAYS).
@@lecturesbywalterlewin.they9259
NOW AFTER WATCHING THAT VIDEO, I AM APOLOGISING TO YOU THAT I WILL NEVER ASK THIS BIZARRE QUESTION TO ANYONE .
CURE OF SELF PROBLEM IS TO ANALYSE IT WELL.
THANKS SIR
"A train is approaching at a speed of 80, while another train is behind it, traveling at a speed of 150. When the train with a speed of 150 overtakes the train with a speed of 80, what is the name of the father of the driver sitting inside the engine of both trains?"
Hi Sir, After seeing your electromagnetism lectures i wrote government Assistant Electrical Engineer Exam,but lost with 1 mark😢 ,But you have increased my curiosity about laws of nature over laws of humans, please reply me with small suggestion for sustaining my curiosity to learn laws of nature , currently my age is 25 (age of distraction)..........❤ From India
SIR THANKS FOR GIVE US SUCH AMAZING LECTURES AND EXPLANATION OF PHYSICS ❤❤❤😊😊
It's my pleasure
First solve your grammatical mistakes then write the comment my boi
I like physics becoz of this person ❤
Hello sir i am anirudh singh and i live in india, i have recently started watching your lectures and my love for physics has been more then ever your lectures will be very big part for my journey for knowledge can u pls bless me for my future that i will be spending mostly studying and exploring my love for science,even a some small advice or a blessing will mean a lot to me sir . thanking you your student anirudh from India
All the best
hello bhai anirudh
Unlock the treasures of timeless wisdom and discover the path to inner peace and personal growth by diving into the profound teachings of the Bhagavad Gita. Embrace its guidance to navigate life's challenges with clarity and equanimity, fostering resilience and spiritual evolution. Let its universal values of compassion and selflessness illuminate your journey towards fulfillment and harmony. Open your heart and mind to the transformative power of the Bhagavad Gita, and embark on a journey of self-discovery and enlightenment.
sounds like Buddhism
@@lecturesbywalterlewin.they9259 Hinduism
Yes, Buddhism philosophy is similar to that of Hinduism.
@@lecturesbywalterlewin.they9259
Gita is Hinduism
I think Prof Lewin is already living a happy life
Sir , is transmitting electrical power through air possible?
I am just curious to know that since Tesla did it in the 1900s and his idea of wireless electricity is developing in china right now . So please tell me the answer to it . If possible please tell me the dangers we could face if we were to invent the wireless electricity
use google - it's all there
@@lecturesbywalterlewin.they9259sure I will be happy to check it out
Is elastic collision practical ??
they occur
Hlo sir can i get to hear through ur videos one of ua iconic line " physics works and i' m still alive" 🙃
can you please explain the 3 body problem, before you say it i have used google and i still don’t understand why we can’t predict it
www.sciencedirect.com/topics/physics-and-astronomy/three-body-problem#:~:text=three%2Dbody%20problem-,The%20three%2Dbody%20problem%20describes%20the%20motion%20of%20three%2Dpoint,the%20influence%20of%20the%20Sun.
sir love from india and i want to tell you that i think your showcase goes wrong which hace 3 ball i dont have an perfect idea that what is that instrument called
it's called "Lewin's Secret"
@@lecturesbywalterlewin.they9259aww 🥰
Hello what's the secret of building that's self-driven pendulum.@@lecturesbywalterlewin.they9259
interesting❗
Glad you think so!
مش فاهمه حاجه بس بحبك با جدو ❤
Sir what is arc second ?
use google
😂
Each degree is subdivided into 60 minutes. Each minute is composed of 60 seconds. Said differently, an arc-second represents the distance of latitude or longitude traversed on the earth's surface while traveling one second (1/3600th of a degree).
@@lecturesbywalterlewin.they9259😂😂😂
Sir i am a neet aspirant from India and i am having problem in physics but still i hve a desire of getting somewhere near full mark and i hve only 20 days to achieve it so sir if possible i want a little motivation from you, may be it will help me a lot in this short journey
Physics is 💕
eat yogut every day but *never on Fridays*
@@lecturesbywalterlewin.they9259 will do it :)
Hi!
sir ,can you explain about astronomical units?
use google
@@lecturesbywalterlewin.they9259thug life 😂❤
sir please make a video on IAT EXAMINATION for IISC BANGLORE
there are 600 Physics problems + solutions on my channel. I suggest you watch them all. *perfect preparation for IAT Examination*
👍
Hello sir, may I know how you get keith's video solutions?
If he has a separate youtube channel can you please share the link?
I really wanna appreciate his work.
keith sends me his solutions by email and I send to him my problems by email. I already have his solutions to problems 198 and 199
Sir i am a jee aspirant i can you please guide me what to study and how to study
talk to your teachers, they know you.
What makes you and Albert Einstein different ?
He is alive?¿
Sir can you clearly explain about astronomical unit .
use google
@@lecturesbywalterlewin.they9259 sir , I used google but it can't clearly explains as you.
π/2 🤣🤓
I am in class 11 preparing for jee plz help that how i be cleaver and revise formula
eat tyogurt every day bur *never on Fridays*
@lecturesbywalterlewin.they9259 ok sir I keep it on always respect you sir a living legend of physics
I dont want solution i want fun
Understand?
Please be respectful if u want fun go watch standup comedians
sir you follow Buddhism cuz i see a statue of buddha behind you?
I am an atheist
@@lecturesbywalterlewin.they9259 exa
Hlw sir plz give me bless 😢
Don't feel sad. I wonder why you wear that fur hat. If it is cold, you can drink a cup of tea with your fur. I would like to drink a cup of tea with you, Walter Lewin.
I bought that hat in Stowe VT for the ONLY reason that I like it. I have about 20 different hats
@@lecturesbywalterlewin.they9259 I have many different hats too. Once I was addicted by hats. Walter, I have a shepherd- hat, I don't need it, but I can't let it go. My shepherd hat is made of Tweed wool.
To be honest … I do Not understand why you are wearing a fur hat?
Sir, please accept Islam. Trust me after death, you will realize that what I was saying is no doubt 100 percent correct. On the day of judgement, you will be alive again infront of Allah.
If you have questions regarding Islam, search Muslim's answers to atheists.
I have read the quran and the bible after which I decided to remain an atheist. The freedom of relligion is the corner stone of all civilized religions. They were all created by people out of fear (largely fear of death). That's why people invented after life and heaven. I respect what you believe in, I trust you respect what I believe in.
@@lecturesbywalterlewin.they9259full repect
@aperson
Are you being for real ??
I laughed reading your comment..😂
How desperate you are to convert him to Islam.
Regarding death you are saying it with such sureness as if you have experienced it.
😂😂
Sir i am aspiring to become a aerospace engineer but the salary of an aero space engineer in isro is very low should i focus on money and take any other groups or i like the concepts in aerospace engineering so i should pursue it and understand the concepts sir kindly reply sir
ask your teachers and friends who know you.