The Speed of Sound & How does Sound Travel? A Fundamental Understanding

[@anthonygross226]

I was a Sonar technician in the US Navy for 12 years, and a firm understanding of sound propagation (in various mediums) is required learning. If only resources like this were available when I was in Sonar school... Thank you

[@tanjo4]

This is a useful, visual aid which has successfully assisted my understanding of the related topic. Good job.

[@dawidzwiastunsikora8043]

The low poly style make me focus easier on informations. Greatly prepared! This example with metal rod between earth and moon - I never thought about it from this perspective, very nice and I would love to see more. Maybe how the sound is propagates in space and interacting with obstacles? And the fact you are using the Blender 3D makes it even more interesting. Thank you.

[@JosephEudave]

Do you receive donations? I want to help in any way you work.

[@BranchEducation]

Thanks!! That's really generous. I recently setup my Patreon page under the same name: Branch Education

[@szymoniak75]

​@@BranchEducation what do you mean generous? you provide premium quality educational videos that require many many hours and a lot of effort to make FOR FREE!!!

[@motivationformuslims1214]

O My God. This video was fabulous. This is how concepts should be taught at school. You are doing an amazing job at presenting your concepts. Secondly, correct me if Im wrong, but the distance the steel rod was pushed was lesser on the moon because some energy was lost on the way to the moon due to heat etc.

[@BranchEducation]

You're correct! Definitely, losses due to heat are one thing that would reduce the movement on the moon side. The other main one is compression and expansion.

[@chanakyasinha8046]

@@BranchEducation more precisely and dislocation of atoms, and electeons releases photons in ir region 😂

[@altervisi7748]

I have never had my mind blown so hard within 3 minutes of a video,

[@8pupocho8pupocho58]

This video is amazing

[@sayakmaity4106]

Best channel in world 😍😍😍

[@sambathkumarguna5888]

Easy explanation of what is sound way and way travels

[@Jeed92]

nice teaching style

[@muhamadronaldy7486]

why is there anyone that still dislike this good video????????????????

[@siddharthpal1035]

I'll definitely introduce this channel to my future kids

[@hu3serinminor453]

It’d be crazy to see the math behind figuring out how quickly the force moves throughout the rod while also taking the varying temperatures into account

[@sanjubhargav767]

This is the first comment i have ever written, i really want to let it out of mý heart...that most of the students even at this era is missing subject in practical perspective, and you are bridging the gap from other side of world to me in india and for many others...really feeling fortunate for finding your content.....you are replenishing the spirit......definitely suggestable channel😘😘😘

[@plea5185]

thank you for the visuals! it is so good to explain some principles!

[@oddgamer1459]

Started off as wtf is a steel rod doing here and almost left , but since I’ll look for different examples and materials as teaching aids , I continued to see what you were on about and the connecting of dots just hit me , well don on the explanation, the animation awesome too !

[@BranchEducation]

Glad you stuck around! I'm glad the dots connected by the end. It's a complicated topic that I feel a lot of students misunderstand- especially when they think a travelling sound wave moves across a room as a physical object moving in a sinusoidal motion.

[@omsongchikh5095]

It is such a good way for teaching..i love it ..thank you very much..

[@alfo6085]

Wonderful videos.

[@CH4OffsetsLLC]

Wonderful

[@mpopa5673]

Great video ! Thank you !

[@Rom3TV]

Really informative and simple, thanks

[@mdsaddamhossain3565]

Omg man ! I should salute you ❤

[@erictko85]

Truly incredible teaching. Thank you!!!

[@dogamertaydogan4148]

Wow! Great content.

[@tolifeandlearning3919]

Awesome.

[@nishachor]

Awesome, thanks!

[@jaipalrajputh9349]

make a video of resonance

[@swetank1]

Really fascinating!!

[@jumiic]

Could you make one about WiFi? Specifically, the differences between 2.4ghz and 5ghz in a home, as well as how mesh systems (like Google's) work.

[@mysticpointwatersports204]

sound can be the wake in the lake and light the boat that departed so sound chases it like the wake chasing the boat, so sound would be warping of time space lakesz

[@farelak3243]

Good video. Keep on doing it

[@shookmin_rv1376]

Tnx:-)

[@MariaDiaz-sq1vm]

Los gráficos son increibles!

[@bthnbgdt]

did i just learn that if i move a very long object, the force is transmitted sequently until the last. Even i see the object is moved instantly at first (because i am close to it), the person who waits the object to be moved at the other side would see it moved after few hours? İ assumed this only applied to the sound behaviour. Thanks a lot!

[@Supersaiyantobi]

I like how civil engineering was a factor

[@mervinchristopher9827]

How did you create your graphics for this video ?

[@PowerScissor]

So, if the world's oceans were made of steel, Orca's sonar would work with much less latency? As we all know Orcas are powerful enough to swim through solid steel, so don't worry about that.

[@sunyata150]

Real simple question: How is it that complex environments with say 20-30 sources creating sound waves, still product 20-30 definite sounds?

[@PlaidLaddy]

i just came here to find out how far away you can hear a commercial plane overhead.

[@MonikaGupta-up7do]

I would like to ask one thing that why is the rate of a sound wave is more in steel than in wood? Please tell.

[@BranchEducation]

The atomic bonds in steel are different than wood. It's like imagine wading in a pool of water vs maple syrup.

[@shubhamdhiman7575]

What if the rod is made of steel and wood together / if the distance between the two occilation is very small, the second wave will catch up the first wave at the junction coz in wood speed is bit slower and both the wave are very close ,

[@jaylensbasketballchannel9134]

Teddy when are u making your next video

[@BranchEducation]

Well it's in work right now, was making one on PCBs, but that's on hold. The next one will be batteries

[@changethementality]

Would there be a breaking point if you moved the bar too quickly? For example: what would happen if you pushed the bottom atoms all the way to the moon in just 15 hours? That would be breaking the "sound barrier" in steel. Would you get a steel sonic boom?? XD

[@JPz90]

Is it just me who is confused throughout the whole video?

[@Tight4Skin]

I guess as the rest of us! It get's on the bus....that is why it's always so loud!

[@whoami98whoami37]

you deserve bilion subscriber than dumber channels i hope you will keep making these kind the videos special THANKS

[@Cybernetic1]

Started with a video.. end up watching all of your video.. Please make video on how to edit audio using Fourier transform.

[@BranchEducation]

Thanks for watching them! Signal processing will definitely be a video one day, but first I gotta lay some more groundwork videos. One of the upcoming ones will be wifi, which is a good start for signals.

[@madafakaniga1]

The way you help understanding with using visuals is one step above the learning material i have witnessed so far. Thank you for your education, it's a blessing.

[@JeffreyAllanBackowski]

Big deal, the higher you go the slower sound travels. You go high enough, and you could break the sound barrier at 1MPH.

[@jarramangondato8561]

This is really great/nice for students like me. I'm grade 4 so yeah. For me it's so hard to understand.And i'm using my big sister's account.

[@BranchEducation]

Glad you liked it!

[@stefanhei]

So I guess what I'm about to ask is part of the suspended factors, but I'm still curious: if sound doesn't travel indefinitely, because somewhere along the line the energy get's lost I guess, would the steel bar also not propagate the entire movement of pushing it upwards through to the moon? Would it bounce back or something?

[@BranchEducation]

So what would prevent the motion from reaching the moon would be the compression/elongation of the bar, which is represented by hooke's law en.wikipedia.org/wiki/Hooke's_law. Whenever any object gets a force applied to it- either pushing, pulling, or any force- some dimension of the object gets distorted. With small objects or small forces, it's a small distortion, but with an extra long bar, the 1 meter push or pull would be the amount the bar was distorted (elongated or contracted), and because the bar just changed its size the moon end wouldn't see any movement. However, if the motion were to reach the moon, the force would bounce back.

[@flashfloods9580]

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[@rry_131]

What if i change angle of rod on earth? If rod is tilted by 45 degree on earth, will it take so much time to reach moon? If yes then how will the shape of rod hold up?! , it will be bent and will not be a straight rod. I understand everything is assumed, but I'm just curious.

[@BranchEducation]

Well, the angle change will definitely change the required distance so it will change the time. If the rod were able to bend, then it would be able to compress and expand. So the initial push from the earth would be 'negated' by compression and expansion.

[@cosfat]

This is a really high quality content and fabulous perspective to the subject. Thanks a lot!

[@JayKumar-fo1ns]

"A bunch of other engineerings"😂

[@sujatakumari4197]

🤯🤯🤯🤯🤯🤯 How this thought experiment happen? As we know that the particles of any solid is attached together with lowest kinetic energy then it must be move instantly... If I'm wrong then please correct me....

[@dinnerchief]

they kinda bonded with each other with springs, i could say, i maybe wrong, but this explanation is very oversimplified

[@tammyberto4643]

do a hockey card video and the boys wwill get you i billon subs and 5 millon likes

[@swampgod8244]

🤔👉 PUSHING THE BAR HAS NOTHING TO DO WITH VIBRATING IT...BUT THE CONCEPT WAS UNDERSTOOD. .34 KM/S IS 340 M/S THAT VIBRATION TRAVELS THROUGH AIR ..

[@muhammadkhan3345]

exactly I was thinking same thing I think the Video maker has confused sound Waves (vibrations) traveling through a steel bar With Steel bar traveling itself. The bar should travel instantaneously.

[@chanakyasinha8046]

Those who don't understand why 1m didn't travelled instantly, its 1 m respect to 384000000 m... And thats the level of movement, springiness of medium which constitutes sound waves

[@Hope-ur-having-a-wonderful-day]

Deserve way more subs you legends

[@BaazBull]

That's mean sounds are everywhere In space too, but sure my ear unable to process that waves, mi right?

[@BranchEducation]

In space there isn't enough particles to propagate sound like normal.

[@brunosousa6642]

It's something so simple and so complex at the same time. Great simple explanation!

[@kloax9945]

the combination of visual and audio is perfectly mixed to create a fun and intersting learning recourse HOW DO I SIGN UP FOR THE USIVERSITY OF BRANCH!

[@shivanihr5879]

If speed of sound is constant (344m/s) then why do we calculate speed of sound for different wavelengths, with the formula ... speed of sound = frequency x wavelength. Because there are numericals given in kid's textbook to find out speed of sound with the given frequency and wavelength. Some websites on Google says speed of sound is uniform (344 m/s) and does not depend on frequency or wavelength, when the opposite is clearly given in the formula. Please explain.

[@muhammadkhan3345]

🤷🤷🤷 ❌ Although I am not physics expert nor a student but I think The bar should move instantaneously. I think the Video maker is confusing Sound waves travel through a steel bar vs Steel bar traveling itself. Anyone!! correct me if I am wrong.

[@mfaraday4044]

I found your channel late. But now i am enjoying very much. Wow what a presentation👍

[@Hyumanity]

I found his channel late xD

[@erdemdogangun1296]

This nice video has reminded me the passage below; Id like to share this different point of view of truth: "If, for example, there is one point on a piece of white paper and two or three other points are jumbled around with it and then someone who already has numerous jobs tries to distinguish them, he will be confused; and if many burdens are loaded on a small creature, it will be crushed; and if numerous words issue from one tongue and enter one ear altogether at the same time, their order will be broken and they will be a muddle. Despite this being the case, I saw with complete certainty that with the key and compass of HE, although thousands of different points, letters and words had been put in each molecule -and even in each particle- of the element air, through which I journeyed in my mind, NEITHER THEY BECOME MİXED UP NOR DİD THEY SPOİL THEİR ORDER; and although they performed a great many different duties, these were carried out without being confused in any way; and although very heavy loads were laid on each molecule and particle, they bore them in order without lagging or displaying any weakness at all. And I saw that thousands of different words of all different sorts enter and issue with perfect order from what is in effect those MİNUTE EARS AND TONGUES without being mixed up and spoilt in any way, they enter those minute ears and issue from those tiny tongues, and by performing these extraordinary duties, each particle and each molecule declares through the enraptured tongue of its being and its perfect freedom, and through the testimony and tongue of the above truth: THERE IS NO GOD BUT HE, and: SAY, HE IS GOD, THE ONE, and travels among air-clashing waves like storms and lightning and thunder without in any way spoiling their order or confusing their duties. One duty is not an obstacle to another duty. I observed this and was utterly certain. That is to say, either every particle and piece of the air has to possess infinite wisdom, knowledge, will, and power, and the qualities for being absolutely dominant over all the other particles so that it can be the means of those functions being carried out, which is absurd and impossible to the number of particles, and no devil even could imagine it, or else, and it is self-evident to the degree of 'knowledge of certainty,' 'vision of certainty,' and 'absolute certainty' that the page of the air functions through the boundless, infinite knowledge and wisdom of the All-Glorious One, and is the changing page for the pen of Divine Power and Determining, and like a signboard for writing and erasing, known as a Tablet of Appearance and Dissolution, which has the function of the Preserved Tablet in the world of transformation and change. Thus, just as the element of air demonstrates the above-mentioned wonders and manifestation of Divine unity in only the duty of transmitting sound and shows the impossibilities of misguidance, so does it perform other important duties with order and without confusing them, such as transmitting subtle forces and energy, like electricity, light, and the forces of attraction and repulsion. At the same time as conveying these, with perfect order, it carries out duties essential for the lives of plants and animals, such as respiration and pollination. It proves in decisive fashion that it is a place of maximum manifestation of the Divine will and command..." Words - 174, by Said Nursi

[@JeffreyAllanBackowski]

Big deal, the higher you go the slower sound travels. You go high enough, and you could break the sound barrier at 1MPH.

[@chanakyasinha8046]

How can you explain the to and fro motion caused in molecules when sound wave travels 🤔... I got the feeling... Like on newtons third law...

[@GBlunted]

Isn't there a difference between someone putting their ear against the bar on one end while somebody at the other end "Dinks!" it with a hammer; and having somebody, for example, put one end of the rod poking into their ear while somebody hammers the other end driving it like a nail 6" longitudinally into their head? Thinking real hard about this and I would like to think the guy would be able to hear the hammer strike coming down the rod and be able to pull it away from his 👂 before it impaled his 🧠... Right? And can you do a video where you apply this thought experiment to light waves? I think that would be nice visualizations!

[@magicmanchloe]

Forgive me the dumb question but I don’t understand how you are moving the imagery bar a full meter without it first pushing all the other phone calls out-of-the-way first?

[@eddymalumbaem]

Can there be a “drag”? Sinds you do it over such a long distance. And wave looks like energy, can’t you lose that energy or part of it along the way?

[@iagyetengenuzui2503]

Woah, im in 8th and this was really easy to learn! my brother is in 3rd and he really understood everything! Ur the bestteacherrrr

[@123123mike]

Curious what would happen if a slice of the bar were removed mid-way leaving a gap and a vacuum?? Would the Wave just stop?

[@TomUK7]

I live next to a busy road and its seriously annoying. It makes more sense to know that each and every air particle between me and those vehicles is being violently dislodged and banging into its neighbour all the way into my ears!!! Its no wonder it 'feels' like I'm being attacked!

[@parallelograms]

I'd like to watch the videos mentioned at the end, eg the one about comparing wind and sound. Has anyone found them? Thanks

[@dilipdas5777]

If you push this long steel bar then the propagation will move with the velocity of light because for objects the molecular force is electromagnetic and thus your thought experiment is wrong.

[@himanshuthakur8181]

Better explanation then class rooms❤

[@rubenpfleger4221]

If I push this bar to the moon, it should be a little bit smaller while the push goes his way through the perch to the moon (I mean logically the size of 1/10 of one atom or sth. like that), right?

[@DannyCuyto]

What happens if you push the 384 402 km bar of steel in both ends against each other by 1 m?

[@torpidinput]

It's frustrating that you say what branches are related to this video but don't have any links to them in the description or let us know whether they are already made or planned for future videos

[@csp405]

If you raise the steel bar from earth the entire bar moves accordingly instantaneously because they are stationed atoms and by moving the entire bar moves. the experiment should be not moving the bar ut nocking the bar that the pressure nking the bar arrives to the other end takes time.

[@ultraspike8242]

Wow unbelievable, way of concept clarification is stunning. This is how schools should actually teach but what they do is they make us a book worm who mugs up everything overnight and take examinations.

[@BranchEducation]

Well, here's the hope that times change, and we develop lessons that integrate videos like this and others.

[@venkadeshdsp4786]

What about aluminiyam . Sound travels 6and half km per secound

[@yanawills3320]

I wanna watch life of luxury bc I’m not rlly into dis and I’m like to watch it bc it’s for school

[@lucascalkins8707]

thats cool

[@nametaghate3488]

Man I fucking love your channel excelent work i wish i had money to give you

[@LauraLiu-fw9to]

where can I learn about Particle Motion Sound vs Wind?

[@gabrielalpizarugalde1081]

I'm still confused as to how tearing a piece of paper apart makes a sound wave

[@geneoluminology]

U mean sound is a tangible force..it pushes atoms..and tht s why it creates a noise?

[@subhampattanaik6622]

such a great video..logical explanations..

[@krisking4964]

The narration of this video reminds me of the clear eyes guy #snoooooooozer 😴

[@kennethbryanluna4405]

Sir I can't hardly believe how sound travels if we try to have a call on our smart phone how sounds deliver to the person you call? Sir I hope you would explain also this into real situation thank you sir.

[@DridriLaBastos]

The compression value is encoded in binary format, then send throw binary capable to the other phone, the other phone receive binary value and tell the speaker to reproduce the same compression value (it is really simplified but you maybe get the idea)

[@Tinoco1x]

Adrien COURNAND He won’t. If he hardly understood the video, there is now way he’ll “get the idea” of electromagnetic waves propagation or digital systems.

[@OgatRamastef]

What's is the difference of sound waves and shock waves?

[@vedranmaricevic6760]

What if we move the bar at the same time 1 meter up both on Earth and Moon?

[@Foberowsky]

Please use MOTION BLUR, it is hard to look when camera moves

[@michaelhargrove9488]

can sound travil far distance and stick to dvd movie coming thru what it is

[@TechDaud]

You are great ... Watch your every video ... Love your channel from start

[@MergedElement]

Now what will happen if both moon and earth push the metal bar as the same time.

[@yanawills3320]

Also I wanna watch YuB instead of this bc YuB is fnny

[@outofbluepills]

That was an excellent, clear explanation! I now know the answer to the Q that led me here but wasn't directly discussed in the vid: Why does the shockwave from an atomic bomb travel at the speed of sound?

[@igors_lv]

Except molecules like to stay in place and wave can travel only so far. each bounce must loose a little energy, that is why we hear only objects closer to us, not from all over the world.

[@dinnerchief]

*Thought experiment*