so true. he points out key things in the law to help us understand, he doesn't just spits out the laws which is what most of my professors do. thank you and keep it up.
I'm Watching His Video in 2x Speed (because tomorrow is my exam! 😢) Still I Can Understand his Explanation.... He Is Amazing!!! (Bengali People Are Extraordinary!!!) U Just Nailed It Sir...!!! 🤩🥳❤️💓💗💖
I usually don't comment on videos but in this case I have to. Sir you are an incredible teacher, I love how you not only show the math but also explain the meaning behind each equation. This is by far the best explanation I have seen on relativistic momentum and Energy. I am definitely subscribing to your channel!
my mind just blew away after hearing "the energy contained in the body by the virtue of its mass at rest". It was so deep. So much respect for you sir.
keep going like this, don't end this some kinds of a fantastic series before discussing four-vectors, minkoswkian metric and proper time, this will be foundation to understand General relativity. And maybe in future, you can start that series too, and subsequently this channel will become a ultimate undergraduate Physics digital archives
Top class presentation🙂! Superbly presented and the blackboard/chalk approach somehow renders the perfect pace, for some reason. Much easier to follow through to the end of the lecture than using text/graphics... no idea quite why. But compliments the presentation by this plainly knowledgeable lecturer perfectly IMHO. Look forward to viewing more of your videos! Thank you sir 👍
I feel yours is one of the few channels with a proper explanation on this topic. One can find many videos on this topic as it's used in many science fiction films. But only a few are precise like that yours.Thanks a lot
By the previous comment I meant is safe to assume with so many particles falling into this black hole with extreme high energies the energy density of this vacum must be extremely high. But when energy drops due to some reason I don't know yet a big bang happens all over again rather than saying Quantum fluctuation, I am saying there is a buoyant force that pops all these particles the moment the energy density falls below a threshold. Your lecture on Relativistic energy literally got me Perplexed. You did fantastic job in explaining all this. I got Perplexed because I was thinking massless particles had energy just like you mentioned . But how does something massless have any momentum. Anyway thank you. I am grateful for this video and nice presentation.
For simple country folk like me this video climaxes with a link between (special) relativity and quantum mechanics, what the real scientists are looking for in general… I’m touching the tip of a tail of a huge elephant! Thanks for the cool video!
Wow, this is great to break the prejudice about relativistic mass. There is no relativistic mass. It was actually caused by the proper time. Wow, it is so great.
12:00 Depp meaning of difference of relativistic momentum and classical momentum is the door 🚪 of understanding special relativity and its relativistic results.
Wowwwww just Wowww!! You getting excited to teach, makes us equally excited to learn. I lovee the energy! Always a fan of your effective science communication🎉
Its been three year of this vedio but it is useful for many many student and this lecture will useful for forever .. ❤ and your clear concept is amazing I can't explain in words ..tomorrow is my exam if you have time reply me ..thanku for help
Thank you sir for this beautiful lectures.. appreciate your efforts, you not only provide the concept but also mathematics with intuitive way.. love from nepal... GONNA WAtch yours every video
9:11 Sir why don't we consider the proper velocity as dX/d(tau) where dX is not dx(contracted length) it is the proper length measured from the frame of reference of the particle (if we take this then the whole formula will be different. and we will be getting P=(m*v)/(1-v^2/c^2) with no underoot). Please clarify this.
Excuse me,Sir! For the Einstein's energy- momentum relation you proved hold true only for non-zero rest of the particle because p= gamma × rest mass× non-relativistic velocity. How can this equation deal with massless particle?
This is really great, thank you for this video. One question I have is, how or why did you initially define the relativistic momentum to be the rest mass times dx/d(tau) ? Why do we define it using the derivative of the proper distance of the observer with respect to the proper time of the moving particle? Am I understanding this correctly? dx is the differential of x for the observer and d(tau) is the differential of time for the moving particle, right? Why do we "mix" the measurements of the different reference frames?
dear sir! I like your videos very much and, it is the 2nd day, I am watching them continuously. 1 thing that I noticed, and you should pay attention to, is that you breathe a bit excitingly during the speech, which raises the blood pressure of listeners like me. (I am 53 years old person). So, If possible, please try to be a little tranquil.
These lectures are awesome. Thanks for uploading these. So the observer and the particle will disagree on the particle’s momentum, right? Even though they agree on relative velocity? Do I understand correctly? And if I chose a center of mass frame, as a third frame, I would disagree with both, correct?
For better understanding you should make a single lesson of relativity and necessity of using proper time for the particle which is traveling at very high speed. Because understanding why we use proper time instead of observer 's own time. You could catch the idea behind the relativistic momentum relativistic force relativistic velocity relativistic energy and ...... relativistic other things.
Reanalyzing this, I have to contradict Dibya. Einstein never applied the first postulate to all of physics. Instead, he said, “The same laws of electrodynamics and optics will be valid for all frames of reference for which the equations of mechanics hold good.” Note two things here. First, he applied it only to “The ... laws of electrodynamics and optics.” This means other laws are not present that do not relate to those two things. Second, he said, “... for which the equations of mechanics hold good.” He left wiggle room for untold mechanics to not “hold good.” Thus, Einstein is not contradicted by anything. His postulate is both narrow and not absolute. Finally, that one’s observation of momentum will be different for their own frame than another does not violate this principle. The fact is, an object without momentum in one’s own frame of reference will look identical to an identical object’s momentumless position in another frame. That such objects have momentum in one frame and not another is irrelevant. Their movement in regard to frames in general remains consistent as demonstrated by the fact that a simple plug-in equation can consistently resolve the difference.
Hello sir, why did you only consider dt and not dx in the momentum part? aside from time they also observe different dx. What am I missing? can you please help me understand thank you very much
12:40 I'm seriously confused about the fact that first we took dtau for finding momentum(proper) of the particle but the we took dt ,shouldn't force be calculated in terms of the proper time .
Please make a video on principal of extremal proper time or variational principal of free particle motion also that is also related to special relativity
Very nice video. I was thinking of an example where in order to give the particle a very high momentum due to high v I would need to provide lots and lots of energy. Let's say the particle was falling into a black hole. The black hole was providing the energy. I was thinking that did this particle finally transition into empty space. Assuming the particle did not disintegrate. It is like it went into nothing. On the reverse maybe these particles pop out of vacuum when their energies drop below a threshold. Like bubble emanating from a fish tank. Perhaps I am talking all nonsense.
sir please make the videos on some topics of mathematical physics like probability , dirac delta function , fourier transformation , group theory , special function....etc and some other topic ... scattering[R.Q.M.] , analog part of electronics....etc......thank you sir ..
Magnetism arises from Relativity?? ► ua-cam.com/video/WwzB1JvsyYc/v-deo.html
I'm continually impressed with your communication skills. I never fail to understand the math as you explain it.
so true. he points out key things in the law to help us understand, he doesn't just spits out the laws which is what most of my professors do. thank you and keep it up.
I'm Watching His Video in 2x Speed (because tomorrow is my exam! 😢) Still I Can Understand his Explanation.... He Is Amazing!!! (Bengali People Are Extraordinary!!!) U Just Nailed It Sir...!!! 🤩🥳❤️💓💗💖
I usually don't comment on videos but in this case I have to. Sir you are an incredible teacher, I love how you not only show the math but also explain the meaning behind each equation. This is by far the best explanation I have seen on relativistic momentum and Energy. I am definitely subscribing to your channel!
Your explanation is amazing sir .
Please bring a series on Quantum Mechanics too .
It would be of great help .
Thank you.
my mind just blew away after hearing "the energy contained in the body by the virtue of its mass at rest". It was so deep. So much respect for you sir.
I was in the search of this cornerstone lecture ..you made everything as clear as crystal ❤️
This is more interesting than viewing a movie. I like the clarity of expression and explanation. Thanks for uploading quality educational videos.
This teacher is just brilliant!
Outstanding teaching ability, King!!
Forever in debt, Sir👑
HOW CAN YOU BE SO GOOD AT EXPLAINING??!!!!
Wow you explain relativity in such simple terms. Honestly one of the best teachers I've ever seen
Thank you for helping me pass my physics class. I couldn't have done it without you, Luh you dawg
I think this video has topped the list of best physics video on youtube. I'm so happy right now
What a beautiful lecture. Such an amazing teacher. A precise and clear explanation is nowhere found on youtube.
Kya mast samjhaya aapne, wah! Maja aagya👍
keep going like this, don't end this some kinds of a fantastic series before discussing four-vectors, minkoswkian metric and proper time, this will be foundation to understand General relativity.
And maybe in future, you can start that series too, and subsequently this channel will become a ultimate undergraduate Physics digital archives
THIS IS AMAZING!!!!!!!!❤❤❤❤❤
Top class presentation🙂! Superbly presented and the blackboard/chalk approach somehow renders the perfect pace, for some reason. Much easier to follow through to the end of the lecture than using text/graphics... no idea quite why. But compliments the presentation by this plainly knowledgeable lecturer perfectly IMHO. Look forward to viewing more of your videos! Thank you sir 👍
Very helpful video. Love from Pakistan!
I feel yours is one of the few channels with a proper explanation on this topic. One can find many videos on this topic as it's used in many science fiction films. But only a few are precise like that yours.Thanks a lot
Brilliant, beautiful lecture, sir. Thank you for sharing it.
By the previous comment I meant is safe to assume with so many particles falling into this black hole with extreme high energies the energy density of this vacum must be extremely high.
But when energy drops due to some reason I don't know yet a big bang happens all over again rather than saying Quantum fluctuation, I am saying there is a buoyant force that pops all these particles the moment the energy density falls below a threshold.
Your lecture on Relativistic energy literally got me
Perplexed. You did fantastic job in explaining all this. I got Perplexed because I was thinking massless particles had energy just like you mentioned . But how does something massless have any momentum.
Anyway thank you. I am grateful for this video and nice presentation.
This man is doing Gods work fr
Love the way of teaching
For simple country folk like me this video climaxes with a link between (special) relativity and quantum mechanics, what the real scientists are looking for in general… I’m touching the tip of a tail of a huge elephant! Thanks for the cool video!
Wow, this is great to break the prejudice about relativistic mass. There is no relativistic mass. It was actually caused by the proper time. Wow, it is so great.
Very clear explanation. Also nice handwriting
Sir beautiful lecture, this is a piece of art, lots of love and thanks from Pakistan 🇵🇰🇮🇳
Thank you very much sir, l am a final year student from Sierra Leone. You made me understand how to derived relativistic KE, may Allah bless you
12:00
Depp meaning of difference of relativistic momentum and classical momentum is the door 🚪 of understanding special relativity and its relativistic results.
Wowwwww just Wowww!!
You getting excited to teach, makes us equally excited to learn.
I lovee the energy! Always a fan of your effective science communication🎉
YOU MADE EVERYTHING CRYSTAL CLEAR. THANK U SO MUCH SIR ❤❤❤
Very nice to see relativistic momentum defined when my college script gives it seemingly out of the blue
This deserves million views
You deserve to be the best, really amazing explanation. I am so touched by the last point you explained. Waw waw❤❤❤
That's A great Lecture 🙂 Thanks Sir 🙏
wonderfull class, sir. thank you
Really really an amazing quotient of knowledge in you 👍👍
thank you for the amazingly clear explanation
Wow.. Excellent video!!!!!
All I've to say is thank you sir ...
Its been three year of this vedio but it is useful for many many student and this lecture will useful for forever .. ❤ and your clear concept is amazing I can't explain in words ..tomorrow is my exam if you have time reply me ..thanku for help
Truly Amazing.
Excellent work
Thank you sir for this beautiful lectures.. appreciate your efforts, you not only provide the concept but also mathematics with intuitive way.. love from nepal... GONNA WAtch yours every video
fantastic lecture
Thank you so much! I feel much more ready for my exam now!!!!
Such video should be watched by more people interested in physics.
Thank you very much for the great explanation. You make it more easier to understand it 😊🙏🏻
Amazing and very clear
Thank you so much, we wish you start a series about general relativity
At time 8:40, why the " dx " will be same for both the observer and the particle system ...please answer ...
exactly this, i don't get why the proper time is taken into account but not the proper distance
Very very fascinating....
excellently done!
You are really very good!!!
Nice video
Actually very good
sir ji . QUANTUM MECHANICS , PHYSICS par bhi lecture deggiye
Excellent Explanation!
It was really great and energetic! Thanks a lot.
Amazing explanation sir 🙏
As good as it gets!!
Excellent Sir
Superb 👍👌
Bravo!!!
Thank a lot sir 🤠
Thank you very much
9:11 Sir why don't we consider the proper velocity as dX/d(tau) where dX is not dx(contracted length) it is the proper length measured from the frame of reference of the particle (if we take this then the whole formula will be different. and we will be getting P=(m*v)/(1-v^2/c^2) with no underoot). Please clarify this.
dX/dtau is always zero because a particle does not move in its own frame of reference.
Excuse me,Sir! For the Einstein's energy- momentum relation you proved hold true only for non-zero rest of the particle because p= gamma × rest mass× non-relativistic velocity. How can this equation deal with massless particle?
E^2=(pc)^2 + (mc^2)^2=(hf)^2. Where m=rest mass, f=frequency, p=relativistic momentum
If you use p=(gamma)mv you will get 0/0
Make video on energy momentum minkowski space and four vector with full details 🙏
Sir why you have not considered length contraction for calculating relativistic momentum
Thank you
Can we have a series on relativistic electrodynamics
We need your help.
Kindly
Prepare a vadeo about hydrogen wave function
This is really great, thank you for this video. One question I have is, how or why did you initially define the relativistic momentum to be the rest mass times dx/d(tau) ? Why do we define it using the derivative of the proper distance of the observer with respect to the proper time of the moving particle? Am I understanding this correctly? dx is the differential of x for the observer and d(tau) is the differential of time for the moving particle, right? Why do we "mix" the measurements of the different reference frames?
At 8:22, why did you not also include the effect of length contraction on dx? Thank you.
dear sir! I like your videos very much and, it is the 2nd day, I am watching them continuously. 1 thing that I noticed, and you should pay attention to, is that you breathe a bit excitingly during the speech, which raises the blood pressure of listeners like me. (I am 53 years old person). So, If possible, please try to be a little tranquil.
These lectures are awesome. Thanks for uploading these.
So the observer and the particle will disagree on the particle’s momentum, right? Even though they agree on relative velocity? Do I understand correctly? And if I chose a center of mass frame, as a third frame, I would disagree with both, correct?
sir please put a lecture on population inversion and pumping in Lasers
Nice sir gi
thank sir
For better understanding
you should make a single
lesson of relativity and necessity of using proper time for the particle which is traveling at very high speed.
Because understanding why we use proper time instead of observer 's own time.
You could catch the idea behind the relativistic momentum
relativistic force
relativistic velocity
relativistic energy
and ......
relativistic other things.
Thanks sir 😊🙏🙏
Reanalyzing this, I have to contradict Dibya. Einstein never applied the first postulate to all of physics. Instead, he said, “The same laws of electrodynamics and optics will be valid for all frames of reference for which the equations of mechanics hold good.”
Note two things here. First, he applied it only to “The ... laws of electrodynamics and optics.” This means other laws are not present that do not relate to those two things.
Second, he said, “... for which the equations of mechanics hold good.” He left wiggle room for untold mechanics to not “hold good.”
Thus, Einstein is not contradicted by anything. His postulate is both narrow and not absolute.
Finally, that one’s observation of momentum will be different for their own frame than another does not violate this principle. The fact is, an object without momentum in one’s own frame of reference will look identical to an identical object’s momentumless position in another frame. That such objects have momentum in one frame and not another is irrelevant. Their movement in regard to frames in general remains consistent as demonstrated by the fact that a simple plug-in equation can consistently resolve the difference.
Make more physics computation and explanation 🙏
Hello sir, why did you only consider dt and not dx in the momentum part? aside from time they also observe different dx. What am I missing? can you please help me understand thank you very much
Does it mean that every observers (including the object itself) will measure the same value of relativistic energy of the object?
If you are talking about total energy, then answer is no because kinetic energy will depend on the observer. ua-cam.com/video/s879xR52ia0/v-deo.html
Pls continue this series relativistic quantum mechanics or relativistic electrodynamics
thynx a lot sir
Sir you are great. Can you tell me where I can find exercises and their solutions
12:40 I'm seriously confused about the fact that first we took dtau for finding momentum(proper) of the particle but the we took dt ,shouldn't force be calculated in terms of the proper time .
Please make a video on principal of extremal proper time or variational principal of free particle motion also that is also related to special relativity
Sir does the distance for the partical and for the observer is same
And it not be contracted or extended
my physics was totally fucked when, i seen your videos.
Thanku sir
Very nice video. I was thinking of an example where in order to give the particle a very high momentum due to high v I would need to provide lots and lots of energy. Let's say the particle was falling into a black hole. The black hole was providing the energy. I was thinking that did this particle finally transition into empty space. Assuming the particle did not disintegrate.
It is like it went into nothing. On the reverse maybe these particles pop out of vacuum when their energies drop below a threshold. Like bubble emanating from a fish tank.
Perhaps I am talking all nonsense.
sir please make the videos on some topics of mathematical physics like probability , dirac delta function , fourier transformation , group theory , special function....etc and some other topic ... scattering[R.Q.M.] , analog part of electronics....etc......thank you sir ..
Sir please make the video on solid state physics
Sir, are the mass-energy relation E=m*c^2 and momentum-energy-mass relation true for only free particle or true for bound particle as well?
Force in relativistic mechanics eqn is available in it ????
Sir Quantum Mechanics par ek lecture series banaiye plz
Well explanations lecture