Standing Wave Demo: Slinky

This is a demonstration of transverse standing waves on a long slinky, including demonstrations of harmonic modes 1, 2, 3, and 4.
This demonstration was created at Utah State University by Professor Boyd F. Edwards, assisted by James Coburn (demonstration specialist), David Evans (videography), and Rebecca Whitney (closed captions), with support from Jan Sojka, Physics Department Head, and Robert Wagner, Executive Vice Provost and Dean of Academic and Instructional Services.

[@AseemSingru]

What the professor will write in Parker's recommendation: He's real quiet, stands real still but has a firm grasp on things.

[@thatkindcoder7510]

Two drums and a cymbal fall off a cliff

[@rajns8643]

Amazing XD

[@mritunjoyguha9635]

Sounds naughty

[@thatkindcoder7510]

@@mritunjoyguha9635 *The horni police would like to know your location*

[@jagadeeshgurana4490]

@@mritunjoyguha9635 whats naught in it?

[@alcyonae]

“Parker smile at your admiring audience” The sentence that turned Parker iconic

[@hadirahrawiah2279]

0:06

[@adamfazlullahsharief]

Everyone's talking about Parker, but the professor is trying so hard (and excelling ) to teach us nicely

[@blackjetski555]

There's a professor???

[@hazerakhan6835]

Bt we should also appreciate parker

[@ROMAN-oo8vh]

Oh yes absolutely!

[@mikell.6064]

Next subject, Schrodinger's cat, how Parker is both dead and alive.

[@Leo_Leonis]

Alive outside but at the same time dead inside lmao 😂

[@prathamrathore776]

Very much underrated 😂😂😂😂

[@mystic3549]

😂😂😂👍

[@noname-gd9gk]

@@Leo_Leonis Your statement made me go crazy. Alive outside and dead inside. Our mind is based on qm and we are in two different realities in the same time. The real one and the one in mind.🙄🤯

[@namritapande247]

@@noname-gd9gk r woosh

[@PhilbyFavourites]

Parker, by now you should be fully PHD’d. We, the inconsequential viewers of the world, salute you

[@fazil43679]

Parker is there just for the Extra Credit.

[@Certainlyme.432]

No Mann... Plz notice .. He is also moving the rope

[@つ_つ-y7d]

@@Certainlyme.432 no he is not....

[@fazil43679]

Shit. Thanks for the likes guys. This notification came to me after only 2 years. Turned my shitty day into a good one. Cheers!

[@fazil43679]

@@Certainlyme.432 Nah. The rope is moving his weak wrists

[@webster_games]

@@fazil43679 Wrist is weak. Rope is stronk. lmao

[@Shwi.Shwi.Venkatesh]

Life for Parker was never the same after these KZbin comments

[@flyorwalk1743]

If that ain't true😂😂

[@bimanh.saikia6600]

This is what looks like when books theories come alive....thank you sir... Love from India..

[@chaz2985]

Did you shit in the street

[@bimanh.saikia6600]

@@chaz2985 I think you were acknowledged to say so from your parents... Nice family.. Does your papa shit on streets from whom you learnt it.. 🤔🤔

[@LightningShiva1]

@@bimanh.saikia6600 Dude, just don't care about them..

[@abhishekmeghwal6663]

I appreciate that

[@sps6271]

@@chaz2985 don't know bout the op, but i definitely saw your mum do it .

[@abdulrhmanshaheen6255]

Everybody is talking about how dead parker is yet no one mentions that this guy can match the frequency of the rope with HIS BARE HANDS. I remember my physics teacher needed to set up a device that resonate with a fixed frequency and this guy did it better with only hands. My appreciations, good Prof.

[@arossfelder]

It's because the rope is thick (big mass = big inertia) and elastic, that will cause the frequency at which you vibrate your hand to stick to the closest harmonic once you are close enough. That's also what makes it almost impossible to go over 6 fixed points by hand, because you will stick to the lower frequencies and then get out of sync.

[@arpitpandey992]

Parker Be Like "What am I doing with my life?"

[@beactivebehappy9894]

Really wth is he doing with his life!!😂😂😂😂

[@isaelalejandroherreraherna9827]

which decisions I've made to end in this situation? xD

[@rahulmaurya5348]

😂😂😂😂😂

[@VivekSingh-rj3xr]

Which is out of your league

[@AdityaKumar-op5zc]

Is he Peter Parker? 🤔

[@gumguy9935]

Parker is legitimately dead inside

[@kvishwanathreddy5730]

😂

[@MsTwitty8]

I truly was thinking the same thing!!

[@Osama-kx3cq]

Me in the chemistry class

[@unknownbeast1386]

Ahahhahahahajahajajajajajaha

[@adityasrivastava1574]

Maybe he's a backbencher

[@zishanshaikh3029]

This guy literally made my physics diagram come into real life

[@magnet2593]

Who? Parker?

[@piyush2404]

@@magnet2593 😂

[@alchemy1]

This guy is a crock of shit and I can tell you, you are an easy prey and love it too.

[@Youknowwho910]

Lmao

[@Vishalutubin]

Nobody taught me like this, I had to read and visualize on my own. Great job professor!

[@jondo7680]

Yeah I hate physicians who talk about standing waves as if you see one every day without explaining what it is.

[@gn3571]

@@jondo7680 Physicians are medics. You meant Physicists.

[@ramsesbams]

parker could have just been a hook on a wall, but he's doing his best

[@nithishprajwal3712]

he has the emotions of a hook on a wall

[@nathanbombardo]

@@nithishprajwal3712 lol

[@maryambukhari7635]

🤣

[@GauravKumar-zq7ex]

If Parker was a hook on wall then maybe we won't get a standing wave

[@maryambukhari7635]

@@GauravKumar-zq7ex nooooooo!

[@075_ritikkumar7]

Why is parker depressed?

[@shideshpatil4796]

He don't like to stand in class as punishment 😁😁

[@parassaini9748]

Cause he got a reason to study.

[@shreyasagrawal3450]

Because you don't have internet

[@rutger5000]

I thought you typed "why is parker dressed" that would have been a more interesting question.

[@thedolphin5428]

Because he has to stand there and listen to the other boring old fart.

[@kikialeaki1850]

Parker is simultaneously struggling with the spring and dead inside

[@dhruvilmorakhiya4904]

Parker: If the lecture's over, Can I take the rope, I have some tasks to do....

[@triny89]

Well that was dark...

[@nightcoreeeeeeee]

@@triny89 yeah too much

[@sandeeptiwari5189]

He wants to skip rope

[@anujnautiyal8539]

@Souven Tudu bdsm

[@lazypotato6743]

Hold up

[@jaseemshan2602]

Before seeing this video,I was so stressed about my studies and after reading the Parker jokes,it really made me laugh many times,thank you guys, really helped me...

[@alchemy1]

So you really think you know what kind of waves he made? Guess what? You don't.

[@hassan.javaid]

How he created those waves is more awesome than the waves itself.

[@noddye1764]

Parkar is slowly transcending into an evolved state of mind

[@kamleshpandey3023]

I think most of people in comment section are trying to make fun of Parker but they are not noticing the hard work of teacher who is making theorey alive just for better understanding thanks sir for your demonstration it was good to see lots of love from India

[@rutger5000]

Speaking as a physics teacher, I would not consider this "hard" work. It's a good demonstration, and it's good to put it online. But it's not a greater effort than that I'd expect from myself or my colleagues.

[@kamleshpandey3023]

@@rutger5000 sir , I mean to say that at least he is demonstrating the waves thing which remain unvisualised by most of the intermediate students so I am just praising his effort and my intension was not to compare him with anyone else because every teacher is best and I could say this with guarantee

[@rutger5000]

@@kamleshpandey3023 I understand why you're praising him. What should be kept in mind though is that praise sets bars. There's significant research supporting the idea that high expectations from teachers result in high performances of students, and counter clockwise. I don't think this effect is limited to just students, teachers themselves are vulnerable to it as well. What the teacher presents here is a B-, he made a small mistake in presenting the material, the demonstration could have been improved with a different slinky, and with practice he could have achieved more stable harmonics. Yet the demonstration does clearly show the phenomena. So B- to me that's not worthy of praise in this case, because I think the teacher has the potential to do better.

[@kamleshpandey3023]

@@rutger5000 yes of course sir I can understand your point if a teacher is good he can make or turn a coal into a diamond he has ability to distinguish between the coal and diamond which are found at same place I accept that he could improve his experiment and can produce a better harmonic so I respect what you are saying but I just want to say to those who are interested in destructive criticism and your criticism is constructive one so in order to reply those negative comments I have written above words so hope you may understand my feeling and I can say that it is teacher like you who always think to improve his knowledge and his experiment .

[@selenaj.a.6813]

Title should be: everyone will comment on parker

[@amyfarrel4374]

Ssly just Parker 😂😭

[@_yukthik_]

2:58 OMG HE LAUGHED!!!

[@chethanaperera904]

Yukthik 😂

[@batatah]

Nah that's photoshopped.

[@kvishwanathreddy5730]

😂😂

[@ZERO-f3b]

Thank for this , now I can die peacefully 🤣😂😂

[@harshkanumuri3977]

he only smiled cuz the prof smiled , he is soo empty inside

[@subhraneelmazumder9079]

99% comments are bout' Parker. RIP PARKER THO.

[@ashokaggarwal1044]

Includong you?

[@mavaldiviesoc]

Hi. It's a simple and elegant demonstration much better than graphing it on board. Congrats. A suggestion, in some times it's difficult to distinguish the coil, from the board. Maybe, with one backdrop, of another color it will be make a good contrast!!

[@bread2951]

Agreed. Its an excellent video but a dark background would have been great.

[@chewinggum5550]

ur colorblind lmao

[@cooloptic]

The best demonstration of standing waves I have ever seen.

[@crawfordrhoderick2942]

What the instructor is saying is over everyone head , everyone are more concerned with parker than the instructor. Parker should start his own you tube channel, all he would need to do is stand there and look pretty.

[@nasarquadri]

This video means a lot to the students like me. So perfectly demonstrated the theory in real life, and professor is working so hard in creating waves which is so lovely ❤️️

[@antoniolandos1650]

I never searched for this or anything related to it and it still comes in my recommended after we learn about it a few days before. 😐

[@harishsingh5491]

you are lucky the universe itself is tracking you....

[@AngelOfMusic20]

Glad I did! Look at this kid he's there against his will

[@agasttyadixit09]

I can tell Parker was sleeping in the class picked to get mocked

[@ashleymorales5139]

By your profile your the geek kid who gets bullied

[@agasttyadixit09]

@@ashleymorales5139 that's Papa Franku

[@yashkrishnatery9082]

@@agasttyadixit09 now you have 6 subscribers. You should change your bio

[@onradioactivewaves]

Standing for a standing wave demonstration. They deserved a standing ovation for this.

[@doremekarma3873]

"Now what I am gonna do, is called a pro gamer move" 3:11

[@efisgpr]

Now I'm gonna do what's called a pro gamer move.*

[@rishavdiyali5193]

Idk why I feel this .. but my friend Parker is being held at gunpoint.

[@RustyDust101]

My physics prof back in the day was very similar to this one. He always gave his best to make experiments and demonstrations work to replicate the intended results. But as usual, when physics collides with reality, there are often mitigating factors that make the demonstration fail, often spectacularly. But he was always so proud when a complex experiment gave exactly the expected results, even though there were many such mitigating variables in it. That's when the inner kid broke forth in a shining smile and exhilarating satisfaction that could light up a room and infect all students on the rows of seats as well.

[@souhardyahalder3903]

99% comment on parker 1 % comment on standing wave and how beautifully higher harmonics are shown

[@healthtipssarthakmodi0504]

Thanks to Parker to hold the string....and also to professor to demonstrate the standing wave concept.....🙏🙏🙏

[@ayasera_9501]

i was so focused on the rope that i didnt see what you're talking about till I stepped back and didn't look closely i saw it and the modes were clear . nice demonstration thank you !

[@OU81TWO]

You had one job Parker... ...and you did it well.

[@Ajay_Singh27]

Pure Teaching.India is not even close to it.In these kind of ways a student can never forget any concept if visualized properly.BTW Loving your efforts Sir

[@robertwadsworth6936]

I took my physics classes from his Dad, this Dr. Edwards came in and would help with Demo's. Great Family!

[@barmherzigsein3259]

Excellent demonstration of Standing Waves and their Nodes. Much appreciated! Salomè, und leb wohl! Mögest Du in das Licht, der Wahrheit, und dem SEIN der Schöpfung leben.

[@Tech_Maverick]

Your demonstration help me a lot in better understanding for advanced questions in physics in less time. Thank you 🙏

[@DiscoFang]

I was waiting for Parker to give us a standing wave.

[@FieryPheanix]

thanks i really needed this to visualize standing waves. the pictures just dont do it sometimes

[@sanjeebpaul]

Parker thinking: wait till get out of the class and change into spiderman costume. 🕸️🕷️🦸

[@potatoesandducks958]

Parker is contemplating everything that has happened in his life that ultimately led to him standing lifelessly as a lecture assistant.

[@Maria-le5jp]

Parker stole my heart

[@rominbasnet4515]

Parker knows some secrets😂😂

[@mazharhayat9097]

Exactly 😂😂

[@AhmadHassan-01]

@@mazharhayat9097 are you from Punjab collage Me too Which city?

[@mazharhayat9097]

@@AhmadHassan-01 am from pgc Peshawar

[@AhmadHassan-01]

@@mazharhayat9097 i am form Mandi Bahauddin

[@mazharhayat9097]

@@AhmadHassan-01 wish you best of luck dear😇

[@dgodgo5983]

Professor showed such great form in those high frequency shakes

[@danielrodriguez248]

Parker be like;I just want to wave good bye

[@aadhya8459]

Thank to the proffessor... i was hell like confused aboutstanding waves and it made EVERYTHING clear. Thank u so much! Thanks to the statue too...

[@sanskrititiwari4073]

The demonstration is just outstanding. Should have watched this video before indulging in theories. Thanks for the great work.

[@serena4279]

Teacher: Explaining what a standing wave is Parker: Thinking what his life has come to

[@tannie9755]

thank you professor, you made me able to better visualise the standing wave diagram on my notes & summarised 10 pages of my notes in 3 mins.

[@mirgisaneguse2569]

think you so much

[@donegal79]

At 2:10...the wave dos not go twice as fast...its speed is constant. Its frequency is twice the fundamental frequency. Needs to be precise here.

[@physicsdemos]

Thanks for the opportunity to clarify this ambiguous statement. You're right that the wave speed is the same for the two harmonics (as long as I didn't inadvertently change the rope tension between harmonics). However, I'm not claiming that the WAVE is going twice as fast for the second harmonic as in the first harmonic. I am simply claiming that the FREQUENCY of the second harmonic is twice the frequency of the first harmonic, which is true (as long as I didn't inadvertently change the rope tension).

[@burtvincent1278]

Thank you for the explanation. I understand visuals better than simply reading about a subject.

[@nandukrishna8142]

I couldn't imagine this while I was in class but now it's crystal clear

[@jonni2734]

Really cool!!! This experiment is perfect!! Good video!

[@sanchitaagte8215]

could not have explained this concept better, hope you're having a great day sir

[@juicy1219]

This was soooooo helpful. I was so confused reading my physics book, but this visual makes it all clear.

[@alchemy1]

So you really know what kind of waves he made? I tell you what, I know you don't.

[@miles11we]

Parker is killin it, good job dude

[@giselledelgado1882]

Very good explanation! Thank you Professor.! Parker did a good job, in spite of the comments: he could keep the node immobile and thus allow the professor create very clear harmonics! Thanks! Really good demonstration!

[@Hammadisteachingchemistry]

Thanks Parker for holding it firmly

[@yousefali6592]

This professor actually lectures really well

[@RahulSharma-oq2ut]

Parker be like : "how did I end up here?"

[@RyanGoemans]

What a fantastic visual demonstration! thank you.

[@LP-bf9oe]

It is so simple and yet really clever of the the prof to demonstrate it this way!

[@MingxingLi-bq9jr]

Using daily staff to demonstrate physics, really fun and inspiring!

[@jotibaagastya3330]

Yes

[@PabloKeilis]

Amazing! As a musician and a pianist I studied this harmonics stuff at the conservatory, in a subject called Acoustic. But the piano strings vibrate so fast that it is imposible to see this phenomenon. Great video!

[@varshadeotare4644]

Lmao look at the hands of Parker when he starts moving them

[@tapanmalakar3281]

I am 13 and I tried this today. I got 6 loops... thanks to all the training I had been doing in my parents' basement 😂😂

[@GeetaSharma-fl7wl]

Wrong practices son 😂😂😂

[@inamdarsaquib9528]

@@GeetaSharma-fl7wl I got out from the video by mistake and came back to find and like this precious comment.

[@cuinlumbridgekid5071]

I'm literally a sperm in my fathers balls and I got 20 loops from the inside of my dad's stank hangers.

[@sunanda3764]

U have turned those bookish diagram into reality... U r great sir... Thank u so much

[@DemisDJohn-eq1bc]

Thanks for the great video! What material are you oscillating here? is it a rubber string or a super long slinky? I'd like to replicate this, and would love to know where to buy something similar. We're looking into explaining LIDAR and how Light is a wave. ("we" meaning this: ips.ece.ucsb.edu/education.html )

[@physicsdemos]

It's a super long slinky. You might try Pasco Scientific to see if they have something like this.

[@christianivanescu8214]

Thank you for making my physics project,u r a legend!Also ty for helping me understand...But the grade comes first!

[@abeetpaul]

Tbh...this is just really fascinating to me Im in love with physics

[@shaiberkhanshaiber5404]

Iam here to visualise physics, now I felt physics by heart as this is most conceptual topic of phyiscs that required visualisation

[@unknownman8832]

Thanks from India. Seeing practical after theory is amazing

[@fuzzbucket00]

This is the best way to learn. Love this.

[@saptarshibhattacharya]

I am from India, and preparing for pre medical admission. In physics, it helped a lot

[@rajshekhar85]

Beautiful demonstration, thanks a lot!

[@FluppiLP]

I'm studying mechanical engineering and obviously this is a huge issue for any mechanical system. And my god I wish someone would've shown me this earler. This explains the whole concept so much better. I basically had to piece this together throughout the years until I finally figured it out but now I know a simple 4min video could have skipped that whole process :D

[@flyingfox8072]

I was confused with standing waves. Now it is clear. Thanks!!

[@royksk]

When teaching Special Needs kids science, I used to show waves in an elastic band by stretching it and flicking it to set up the vibration but in front of an old pc cathode ray tube monitor on a white screen. The visual wave is clearly shown as the backlighting gives the effect of a slow motion wave.

[@youaremymuse6852]

Parker looks so uncomfortable.

[@seanbrown532]

Excellent Parker. You're an expert!

[@SteveJian]

This video still rocks. Good for you, guys.

[@sanikabhavsar5251]

Thank you so much for practically understanding sir

[@JoseClMezzalira]

I got so excited with this that I lost the like button and got me searching for it. Thanks for sharing this experiment.

[@008alikhan4]

Thats really amazing and a good way to understand standing waves (especially because they are difficult) .......Thank you sir

[@leonleafkoushiknath8699]

RD SIR THE GOAT 🐐🙏🏻

[@bostangpalaguna228]

Thank you for the demonstration. it's a very clear explanation

[@shelbyfaaron739]

Thank you, this helps understand my class better

[@shashishekhar----]

Beautiful demonstration

[@Imran-iwnl-Haider]

Helpful. God bless you sir ❤

[@jace_Henderson]

This helps to perfectly visualize and understand why square speaker boxes are not ideal.

[@prakashchandtiwari2246]

This is the real physics. Physics is not just reading theory but to feel the concept like here I did.

[@vijendra1150]

Great efforts for learning this topic

[@hussein4dh]

Many thanks to you professor, what a great and creative way of explanation, those people encourage you to learn more and more, by the way, you let me liked Math although it's out of my major and after I thought it is difficult. Keep it up please.

[@MegabyteLuv]

Great demo! We tried to do this to demonstrate the science during a performance, but our rope is not cooperating. Would you mind sharing what type of rope you used and how to accomplish this so perfectly?

[@physicsdemos]

A heavy, flexible rope works best, if you have one. But you can do it with any rope. The key is shaking the rope at the right rate. Once you've got mode 1, which shouldn't be hard, memorize the frequency at which you have to shake the rope to get it. Then double that frequency to get mode 2, triple it to get mode three. What we used for this demo is actually a long metal slinky, which is both heavy and flexible.

[@aryab.8509]

Excellent representation! Helped me a lot. Thank you!