Resonance

Рет қаралды 115,956

George Panagiotakopoulos

12 жыл бұрын

Part of a lecture given by professor Walter Lewin concerning driven oscillations and resonance.

Пікірлер: 68

@saara2091 3 жыл бұрын

If he taught me physics I'd never miss a class

@durgahimabindudwarampudi6864 3 жыл бұрын

I'm so

@chitrachayanika9905 3 жыл бұрын

kimchi ramyeon Kaisa tha mujhe BHI batana khareedna tha lmao

@chitrachayanika9905 3 жыл бұрын

@@saara2091 thank you pal, bhagwan tumhara bhala kare

@amaladitya9321 2 жыл бұрын

Yeah me either

@chetanekta 8 ай бұрын

True

@antigen4 6 жыл бұрын

jesus - what a great lesson - a demo AND a film - within such short space ... i wish they had such things at my school!

@speculesgorgoth4055 3 жыл бұрын

Finally I see the experiment done by a pro who can think about it better for us. Cus he is a truth seeker or I have Faith that he is. This is amazing!!! It feels like watching science fiction.

@toohardfortheradio3189 6 жыл бұрын

Resonance. You leave me in a world of infinite questions.

@GrahamMasters87 2 жыл бұрын

Imagine what tesla's brain felt like lol

@akshatbajpai4617 2 жыл бұрын

Tht was amazing it was like the matter of glass is expanding

@tychophotiou6962 4 жыл бұрын

The strobe wasn't a strobe at all, it was just a light flashing on and off annoyingly. It went at about 2 Hz instead of 440Hz.

@user-zz3zz3ov9u 4 жыл бұрын

Isnt that what a strobe does?

@richardv6294 8 жыл бұрын

That was cool👍

@Kurtlane 6 жыл бұрын

Is there a lecture or video that explains WHY resonance does that? With formulas and all. I saw this explanation once, and if I remember correctly, there is a division by zero somewhere in there. Which, of course, produces infinity.

@HoLeeSheet117 6 жыл бұрын

Kurtlane Yes.

@lindsaywells501 4 жыл бұрын

The amplitude at resonance of an undamped system is infinite. This is seen in the mathematics. But all systems have damping of some degree, however slight. A lightly damped system at resonance will hit its mechanical stops at the resonant frequency and tear itself apart.

@shahzadmuntazer1749 5 жыл бұрын

thanks

@shrabaniganguly4941 8 жыл бұрын

great

@mudavathvinodkumar5070 5 жыл бұрын

I want to meet you sir how

@yaracorp 2 жыл бұрын

do force quantity have anythings to do with vibrating frequency of the objects? suppose i hit the object with 10 N force and later on with 50 N force, what will be the difference in frequency of vibration of the objects?

@goldenmeanphaseconjunction313 3 ай бұрын

Depends on it structure and shape.

@meerabfashion3970 5 жыл бұрын

good lesson

@DanielTeixeira24 6 жыл бұрын

just in case anyone is still under the impression, the Tacoma bridge did not fall because of resonance. it fell because of aeroelastic flutter.

@josephofphoenicia5587 6 жыл бұрын

daniel I thought it was due to wind resonance

@djnkg4703 5 жыл бұрын

Greeces public school still say it did

@amankumar7128 5 жыл бұрын

Can you tell me how can we reduce the effect of resonance in different materials?

@lindsaywells501 4 жыл бұрын

Daniel, you are absolutely right. It was flutter. It was was self-excited vibration caused by vortex shedding because the bridge roadway was a bluff body.

@lynnewainfan3000 3 ай бұрын

Isn't aeroelastic flutter an example of resonance?

@user-um9sl1kj6u 6 ай бұрын

Just like a bridge can have resonance and waves, an o neil cylinder would also have to contend with that.

@speculesgorgoth4055 3 жыл бұрын

"then he talked about the significance." " It will be significant."

@nickgiovanidis70 6 жыл бұрын

Interesting! Never knew Benjamin Horne teached science classes.

@AVI-dt8qe 2 жыл бұрын

He is walter lewin

@bluewhale4277 3 жыл бұрын

What was being used to produce the sound? What kind of "plate" was next to the glass? What was the plate attached to thate lowered and raised the volume and frequency?

@natmath2576 3 жыл бұрын

It is simply a speaker with a diffuser, which is driven by a signal generator.

@koykoyroykoy3623 2 жыл бұрын

Καθηγητά πως μπορούμε να τοποθετούμε σε κάποια κατασκευή, ενα δείγμα απο καθε υλικό και να εισπράττουμε την αντιστοιχία του σε ακουστική συχνότητα; θα με βοηθούσατε παρα πολυ στον πείραμα μου αυτό, αν είχατε τον χρόνο να ανταποκριθείτε. ευχαριστώ πολυ.

@fjs1111 Жыл бұрын

Please use a link to walter lewin's course on youtube as opposed to copying and redistributing content

@cenk6909 5 жыл бұрын

I would definitely fail his lesson :d

@mudavathvinodkumar5070 5 жыл бұрын

I am very happy with your experiment sir. I'm from India my name is Vinod iam also physics lecturer

@amankumar7128 5 жыл бұрын

Can you tell me how can we reduce the effect of resonance in different materials

@akshayrajput1374 4 жыл бұрын

Binod

@saara2091 3 жыл бұрын

Binod

@saara2091 3 жыл бұрын

Sry😂

@Burevestnik9M730 3 жыл бұрын

why not go back to 1908 and Tesla's Tunguska explosion?

@Mr.NerdMcWigglesJr 6 ай бұрын

Thank you very much sir

@beeagle5801 3 жыл бұрын

Is glass can be broken by frequency of light just like frequency of sound??

@spockmx9426 3 жыл бұрын

Light waves and sound waves are two different things

@beeagle5801 3 жыл бұрын

@@spockmx9426 yeah they are different . But they r waves thus have frequency. But what kind of difference make them different .

@spockmx9426 3 жыл бұрын

@@beeagle5801 the frequency required to break the glass is about 556 hertz which can be produced through sound waves easily because it ranges only from 20 to 20000 hertz but the frequency of the electromagnetic spectrum ranges from 10^10 to 10^24 hertz which is very high from what frequency we actually need to break the glass and since the light waves can't have the frequency anywhere near 500 hertz it's not possible for the light waves to match the frequency of the particle's oscillating motion in the glass

@beeagle5801 3 жыл бұрын

@@spockmx9426 that's the satisfying answer👍🙃

@speculesgorgoth4055 3 жыл бұрын

Mmm yeah subbed.