3. Driven Oscillators, Transient Phenomena, Resonance

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MIT OpenCourseWare

MIT OpenCourseWare

Күн бұрын

Пікірлер: 41
@julienscardigli8625
@julienscardigli8625 4 жыл бұрын
How can there be only 11 000 views? This is such a great video... And then some people talk about inequalities of education.
@jonahansen
@jonahansen 2 жыл бұрын
Probably because one needs a relatively sophisticated math background/education to really follow this stuff, and that is an investment very few people are willing to make. But you're right - no one's stopping anyone from doing so...
@tanmaymishra9576
@tanmaymishra9576 Жыл бұрын
@@jonahansen no , lol.. chinese study this in their 10th grades and Indians in their 11th grade , same with most of the other asian countries , its just so basic
@abinanthanva289
@abinanthanva289 Жыл бұрын
@@tanmaymishra9576 wtf no we don't study waves in this depth in 11th in India, wdym?? This is the hardest elective in my college in 1st year. Stop spreading misinformation. And you don't have second order differential equations in JEE advanced either so yeah I can't get from where you are basing this whole argument from
@zphuo
@zphuo 6 жыл бұрын
@1:01:00, how wonderful experiment to demonstrate the driven damped oscillator!!!
@xonikkiecal
@xonikkiecal 3 жыл бұрын
Saving my life rn. Have an exam in Classical Mech tomorrow and lecture last Friday was unnecessarily confusing.
@oscarobioha595
@oscarobioha595 4 жыл бұрын
I'm taking this paper at my university during lockdown and I come across this? My fees need to be paid to MIT. This is beautiful
@Tenebreon
@Tenebreon 4 жыл бұрын
Funnily enough, during lockdown, 8.03 at MIT is currently being taught using exactly these videos, so it seems they really believe in them :P
@Upgradezz
@Upgradezz 3 жыл бұрын
@@Tenebreon do they have any other classes or only these?
@Tenebreon
@Tenebreon 3 жыл бұрын
@@Upgradezz Are you asking if there are classes besides those on OCW? If so, as far as I can tell it's only the bigger (edit: in terms of enrollment) classes that have recorded lectures here. Many smaller classes have just lecture notes/assignments, or haven't been added to OCW yet. Here's the catalog for physics stuff: catalog.mit.edu/subjects/8/
@vaster1142
@vaster1142 7 ай бұрын
Awesome. Days I was doing these purely mathematically without any physical meaning while learning Laplace Transform helped.
@umerhayat1590
@umerhayat1590 2 ай бұрын
Thank you MIT. Respect from Pakistan
@josevilhena8523
@josevilhena8523 4 жыл бұрын
Best teacher ever!!!
@明時何
@明時何 6 жыл бұрын
太棒的課程了。講解很清楚。
@anannugroho4579
@anannugroho4579 2 жыл бұрын
If I have a number of glasses, is it possible that I can generate good music from the combination of each glass? How can I simply generate a sound like this 1:07:52 outside the class ? Is this phenomenon 1:13:49 that makes the window glass vibrate when the vehicle passes? At what frequency does our eardrum tear?
@UCSAmit
@UCSAmit 3 жыл бұрын
I like the resonace phenomena through experiment of wine glass. experiment really helps to understand things better.
@MrFive_5sir
@MrFive_5sir 3 жыл бұрын
At 51:35 when Prof Lee talked about the large ω_d limit, I think tan(δ) is negative and approaches 0 as ω_d goes to infinity (according to the tan(δ) formula obtained earlier in this lecture). Hence δ goes to π as ω_d goes to infinity.
@lorenzomarchio3694
@lorenzomarchio3694 2 жыл бұрын
I still can't get why delta goes to π. The limit of that ratio is clearly 0 as ω_d goes to infinity. Why delta is equal to π? Maybe because the solution of tan δ = 0 is δ=0 + k*π. In this case another solution of the equation could be δ=π.
@theFitProfessor
@theFitProfessor Жыл бұрын
@@lorenzomarchio3694 The tan function exists between closed intervals of 2pi (meaning with verticals asymptotes on both intervals limits). The interval centered on zero goes from minus pi to pi. So lim of tan(x) as x goes to pi is +infinity. That is what he is saying.
@Ch-qi3fy
@Ch-qi3fy 3 жыл бұрын
Such a beautiful lecture
@alexandergarcia6479
@alexandergarcia6479 4 жыл бұрын
there is a error in the calculation of the limit ag 50:00 tan(delta)=Wd/(Wo^2-Wd^2) so, when Wd goes to infinity, tan(delta) goes to Wd/-Wd^2=-0 and tan(delta) goes to pi
@christianhendrickx5152
@christianhendrickx5152 4 жыл бұрын
It's correct
@NexusEight
@NexusEight 6 ай бұрын
There are 36000 views at the time of this writing. How are there not 36000 likes?
@institutembw
@institutembw 4 жыл бұрын
Nice warm up for me
@jarviszhang
@jarviszhang 2 ай бұрын
50:00 what the heck is d(t) exactly? Is it some driving force? And why does it equal to Delta( sin ( w_d * t))? I don't see the d(t) is the force diagram. And if d(t) is indeed the driving force, shouldn't it be d0 cos(w_d t) something? It's super confusing here
@tauqeerahmed8835
@tauqeerahmed8835 3 жыл бұрын
It's very helpful for students
@Upgradezz
@Upgradezz 3 жыл бұрын
In the glass where is the spring force?
@swayamjha3988
@swayamjha3988 Жыл бұрын
In the calculations done around 20:00 how can we write driven force as e^iWdt??? I mean it should be Re part or IMZ part of this quantity na?
@jarviszhang
@jarviszhang 2 ай бұрын
He just treated the entire function to be complex numbers.
@alexandergarcia6479
@alexandergarcia6479 4 жыл бұрын
1:00:00 awesome
@dranorter
@dranorter 3 жыл бұрын
The ambience of this class is so much different from some of the other MIT OCW classes. I don't mean the instructor specifically; it has to do with the way the students look disengaged. It reminds me of undergraduate classes I've been in where people were there because of a requirement, not because they cared about the material.
@gajendrakumartarak8839
@gajendrakumartarak8839 5 жыл бұрын
Thank you sir
@ahmedjops7342
@ahmedjops7342 4 жыл бұрын
Thank u so much
@LydellAaron
@LydellAaron 2 жыл бұрын
1:06:14 relationship to Z boson
@nanfengliu1027
@nanfengliu1027 6 жыл бұрын
Pi/2, not Pi
@yermomLeslie
@yermomLeslie 5 жыл бұрын
And wouldn't tan(/delta) --> 0 as w_d --> /infinity ?
@goulchat1
@goulchat1 Жыл бұрын
@macpb13hd
@macpb13hd 6 жыл бұрын
primero y que paza
@pmemoli9299
@pmemoli9299 3 жыл бұрын
uwu
@julialeal4545
@julialeal4545 4 жыл бұрын
actually actually actually actually (my god)
@akashsreeni5314
@akashsreeni5314 3 жыл бұрын
😂😂
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