Why are metals so stretchy? (2^13 sub special)

[@PracticalEngineeringChannel]

This demo is so cool. Awesome video.

[@AlphaPhoenixChannel]

Thanks Grady! This one was a lot of fun. I wasn't lying when I said it was one of my favorite matsci demos - I'm flabbergasted it isn't in every 101 class.

[@tacoborito9320]

Hmm funny seeing you here

[@brianfeddersen3528]

A wild engineer appears!

[@minepaperstudio5683]

Noice

[@TheTzeestraten]

@@AlphaPhoenixChannel It was in mine! Actually it was before my Materials 101, it was in Engineering 102, which every engineering student goes through before specialising further. I love the demo, it's so versatile and a surprisingly accurate analogue! We used different sized bubbles to simulate interstitial and substitutional impurities (kind of, interstitial doesn't work as much in 2d). We outlined grain boundaries, and observed dislocations not passing grain boundaries. All in all, a fun lab class. Steve Mould has a video doing a similar thing with ball bearings getting vibrated and simulating the annealing process.

[@amnelruin4837]

Sir, I am a commercial electrician. I bend aluminum tubing for a living. I don't think the information you've given me will benefit me at all in my career but you can be damn sure I'm going to think of this lesson everyday at work. And I will be telling my apprentices about dislocation to try and seem cool

[@BuddysDIY]

Bro. When you pulled out the bubbles it all made sense. That was nutsss

[@WhyIsJupiterInTheFridge]

Here’s your first reply, i guess.

[@SmDJeremy]

fr, i was mind blown.

[@mittarimato8994]

fr, no cap ONG

[@Sqwince23]

Steve Mould brought me here. Did not disappoint. Highly recommend. Watched all your videos~

[@FrancoGrimoldi]

+1

[@philh.9618]

Me to ✌️ great channel

[@benrogers5845]

Same!

[@AlphaPhoenixChannel]

Thanks! I'm so excited to get to share fun projects with more people!

[@MeppyMan]

Same here, from Australia. Good luck with the Nobel prize in the next year :)

[@RockinRaven96]

I've just graduated from a materials science degree and I've got to say you managed to explain dislocations better than any of my lecturers ever did, good job

[@zovisapphire]

I've been wondering for years... why is it that everything we learn in school is always so badly explained compared what you can find on youtube? There are SOOO MANY topics I've learned on KZbin in 20-100 minutes VS MONTHS in school. what is going on?

[@Mr0rris0]

@@zovisapphire tower of babyl.. book of enoch/fallen template. As God spread us out with the flood to punish a tower meant to get to the heavens we don't know what Is going on in the kitchen/is in the next cubicle... we specialize.. It's sort of like what God did but more of an embracing and hijacking what he did.. to remake and own it. No self sustain, no Renaissance men, no geniuses, no polymaths.... everyone must focus on a tree so they don't see the forest... Power and abdication of personal sovereignty. Point at a manufactured target to point at with a bought foam finger to point with. Thatsbthe power. Now go point. You get power go point.. find a witch to burn

[@Mr0rris0]

Track Indo-European languages theology philosophy religion and semiotics... What's the neurology and fractal nature of pareto distribution and matthew principal with a side of imposter peter dunning kruger syndrome

[@graxxor]

@@zovisapphire That's because you've had less than a dozen science teachers your whole life to teach you everything you now know about science from materials they studied when they were at university, 20 years earlier, but you've watched 1000 youtubers each explain one or two things they may have learnt a week before and thought was cool enough to share with their viewers.

[@darknight2890]

The carpet example was brilliant. Your channel is awesome.

[@AlphaPhoenixChannel]

Glad it made it clear - thanks for the comment!

[@NukelearFallout]

And it all ripples into effect with the object, or thing, that is causing that specific ripple. I.e., volume of the object, force applied, etc.

[@MeepMu]

I'm came from Steve Mould's channel, and i just want to say that this is one of those few channels on KZbin where the host knows enough about a subject to talk about in in depth, but in a very easy-to-understand way! Please keep up the good work!

[@AlphaPhoenixChannel]

Thanks! That’s what I strive for - hopefully it’s informative and fun!

[@BothHands1]

i've seen this demonstration with little metal beads, but never with bubbles. it's pretty amazing how you set it up to make all the bubbles the same size

[@AlphaPhoenixChannel]

Yeah the metal beads are awesome for showing how repulsion between atoms causes spontaneous ordering (crystallization) but they aren't sticky enough to easily get motion behavior like dislocations gliding effortlessly through. I wasn't lying when I said my jaw hit the floor when I first saw Bragg's lecture video using bubbles. It's so ludicrously cool. Also don't look too close at some of the shots if you think all of my bubbles were successfully the exact same size lol.......... It's actually pretty fun to see what crystal defects you get when you do have different sizes - you can get weird sized bubbles stuck to dislocations (or dislocations stuck to weird sized bubbles) because they relieve some of the strain associated with having an extra half-plane of atoms wedged in the crystal.

[@johnpossum556]

@@AlphaPhoenixChannel It's worthy of a second channel content of exactly how you did it.

[@BothHands1]

AlphaPhoenix that's really interesting, and probably why many metals are doped or alloyed to get a better material. just a few % carbon and you have steel instead of iron.

[@AlphaPhoenixChannel]

Oh absolutely! You get all your dislocations pinned to impurities, and suddenly the material acts a LOT harder.

[@UltraRik]

"7:55 wants to know your location"

[@kendokaaa]

This channel reminds me of Applied Science, where videos aren't frequent but they're very good. Oh and holy crap the bubble model for crystal structures is brilliant

[@willmcconnell6008]

I think they could do a really interesting collaboration project.

[@max_kl]

Ben from Applied Science mentioned this channel on his Twitter a few days ago. It's how I found it, and I'm fascinated!

[@morphx666]

Yep, I'ḿ here because of Steve... but man, how glad I am he mentioned your channel. This video has to be on my top 5 all time favorite YT videos! Keep up the great work.

[@AlphaPhoenixChannel]

Wow thanks!

[@mikip3242]

For comparison, PewDiePie is now in the 2^26 button. This chanel is highly underrated, I've been here since the 2^10 button and I feel proud of it like a dad (even if I did nothing). Keep it coming!

[@AlphaPhoenixChannel]

Thanks so much! Glad you like the channel. Long-time supporters give me the motivation to make more videos - it isn’t nothing!

[@justkarkat9575]

When Steve Mould shouted you out, and after watching one of your videos, I was certain that I was watching a channel that already must have had millions of subscribers, but when I saw your sub count I was literally shocked! I do not know how you have not hit it big yet, but heres to you doing so!

[@professionalidiot1274]

“Because hexagon, is the bestagon!”

[@zyansheep]

@Hand Grabbing Fruits it has already been declared, but you may declare it again.

[@O5MO]

But only in 2d or where third dimension doesent matter. Because perfect hexagons cant form non flat object

[@BlackSoap361]

@@O5MO take a bunch of pentagons, give a few of them an extra side. Now you have 3D shapes.

[@gary4689]

Ahh, fellow members of the order

[@andydrews9691]

Well my dad is a gon

[@mrcooleh]

8 years of engineering school. Never has this ever been explained so well. Excellent job.

[@benrogers5845]

Came from the Steve Mould video and after watching one video I immediately watched every single other video on your channel. Literally all of them! Amazing content, you're a great educator and clearly one of the KZbin greats in your field. So glad I found the channel 👍👍

[@nnate72]

KZbin homepage actually brought me to your channel and I’ve watched everything you have now. You have a fantastic talent of explaining extremely complicated subjects so simply and eloquently. Keep on producing!

[@olivianeugeboren602]

I'm one of the steve mould people, ive watched a ton of your videos now and you've quickly become one of my fav channels. Such amazingly interesting stuff demonstrated so well

[@AlphaPhoenixChannel]

Welcome! thanks for that endorsement! I don't put out a LOT of videos, and I think that hurts me on youtube, but it means I only publish stuff I really find interesting. These dislocations here are a topic very near and dear to my heart. Dislocations are everywhere, but they really suck in electronic devices...

[@RSHastingsIV]

@@AlphaPhoenixChannel Quality over quantity matters with the type of subject matter you cover. Keep doing you, your subscribers subbed for a reason. On a side note, I'm also here from Steve's video.

[@Nobe_Oddy]

I'm a big fan of Steve Mould too! I'm soooo happy YT suggested your channel to me!! I LOVE YOUR CHAN!!!

[@AlphaPhoenixChannel]

Oh wait did you just subscribe in the last week and not come direct from Steve Mould? That would be some kinda big hint “the algorithm” was helping out! Thanks for the comment - glad you’re here!

[@DanHoke]

What I am loving in particular about the bubble demo versus the the steel ball demo, is that the bubbles have some give (like atomic bonds) so I feel that the resulting effect is more analogous to a crystal structure. Now if only we could think of a way to extend this model to build intuition about heat treatment of carbon steel...

[@AshharHasan07]

Very intresting because your complaint was the same as what Bragg noted in his original experiment (Bragg Raft Bubble is a good search term) - he also wanted to know hat happened when heat was applied.

[@RishiKumar-zv3lc]

Hey Brian, new fan here😁.....! I came here from Steve's video. You're amazing....♥️

[@user255]

Underrated channel. Interesting science bits from someone who actually knows what he is talking about. Beware of the fakes!

[@skivvy3565]

As always, one of the best presentations, topics and presenters on KZbin. I cannot express how much I appreciate you explaining in a few minutes what so many years in an educational system (outdated by decades and centuries) was unable to teach to this extent. Please keep up the wonderful work

[@matgggg55]

That demo is AMAZING!!! I couldn’t believe it worked so well I thought their would be a bunch of popping when moving them around, and the contrast was excellent every detail was there!

[@karliebellatrixyoung6359]

You are great, new favorite science communicator. Only thing holding your channel back is video quality, all of your cameras (or something in your editing chain) is making your content look like it's from like 2015.

[@Zoidle-doo]

Great video and explanation. As a lay person, you explain complicated things very intuitively, and your passion just shines through. Love it.

[@harikrishnank.j.4954]

Wonderful demonstration of plastic deformation. Thanks Steve mould for bringing me here😍

[@elementalsheep2672]

I only left the 2^13 comment two days ago... and he delivers! Can't wait to see this channel more.

[@AlphaPhoenixChannel]

I took a couple hour nap this afternoon before posting... producing a 14 minute video in 3 days isn't something I'd recommend, but it WAS a lot of fun!

[@elementalsheep2672]

@@AlphaPhoenixChannel I came back to this video once I had finished my engineering course. I wish I had remembered it earlier, the subject on metal structure and half-planes would have been so much easier!

[@kilianmosimann2958]

What makes this demonstration even better than steel balls is the adhesive behaviour between the bubbles. The dynamic deformation was the most accurate one I have ever seen in a model! Great video

[@timhooper1557]

Your passion for science really shows in your videos Thumbs up from me! Good luck as i see a bright future !

[@RaggedyHead]

Tbh I am glad the Steve shouted you out. I wouldnt have discovered this passionate dude that provides great content, keep on doing great!

[@Flumphinator]

I’m studying to be an architect and this has bothered me for YEARS. Thank you!

[@FrancoGrimoldi]

Have a happy 2^13! GREAT video, thanks!

[@tryAGAIN87]

Holy crap. This is literally the best physics material science video I have ever seen! Thank you!

[@herzogsbuick]

somehow, in the 2 or 3 years i've been watching your videos, i missed this one. those bubbles, as you put them through "tension" and "compression"...that was incredible. talk about a picture being worth a thousand words. something can maintain overall rigidity while experiencing deformation -- we know that's true, but seeing it happen, man just those concepts, rigid as they may be in our heads, are malleable too. thank you for this.

[@williamreynolds6132]

I love when content creators help each other out. I’m sure I would have found you eventually but glad Steve mentioned you so I could start watching your videos sooner.

[@trombonebone17456343]

Steve fella here, just wanted to thank you for the videos. They are all very entertaining and informative. Looking forward to the water crystal!

[@lithostheory]

This is an awesome demonstration! Great video :^D

[@AlphaPhoenixChannel]

On of my absolute favorites, and to explain dislocations, a topic very near and dear to my heart because of my lab work! Such fun!

[@raulrodrigues9084]

Godspeed my dude, you make some great content and the enthusiasm and energy you show through these videos is amazing. Thank you so much!

[@Scanlaid]

Feel like your channel is going to be huge. Got in at the 8.5k floor, on and up boyo!

[@TheZizybalooba]

im a senior manufacturing engineering student. Did not know of your channel but after getting far enough to see that you are making a 2^13 subscriber play button im subbed haha. Love this demonstration and MAN would it have saved me some grief in material science class. Keep being cool!

[@jaquessiemasz8650]

New subscriber here! My jaw dropped too the whole time watching those dislocations ripple through the bubbles. I could watch that all day! >>> Suggestion for the next play button: Sintered powdered metal!... Because it sounds really cool.

[@AndrewWilson-Anotherrose]

this is just easily one of the best science videos on the internet period.

[@kjazure]

I wonder if the atoms zipping around is partially the reason for why metal gets hot when bent

[@OGDragonflare]

Friction in itself yes

[@MalcolmCooks]

the atoms aren't zipping around, the dislocations between the atoms are

[@whiteeyedshadow8423]

@@MalcolmCooks yes but the atoms are similarly moving to fill the gaps left by dislocations, which is why the dislocation itself moves

[@Lunibruniful]

@@MalcolmCooks that's like saying the bottle isn't holding the water, the empty space is.

[@formdoggie5]

​@@Lunibruniful given that atoms are mostly empty space, that's actually true, too.

[@broadusthompson1666]

This is fantastic! I work as a blacksmith in a museum, I do this all day every day! It always amazes me when people ask very basic questions and the answers are very complicated or very recently understood science, like “why does the metal glow when it’s hot?” Or “how does the chimney draw air so well?” OR “how does the metal change shape?”. I’ve yet to find a good succinct explanation for solid state welding, that one’s tough.

[@MatSciStudent]

Great job explaining this demo, and dislocations in general! Tiny nitpick because you seem to enjoy corrections: I believe the 2D bubble lattice would just be "hexagonal" since the hexagonal lattice is necessarily close-packed in 2 dimensions.

[@nikostsatsis9478]

Why is it necessarly close packed

[@adrianschoenberg3938]

This is my first post on youtube in almost 10 years. Just found your channel. I'm enthralled by your energy and positive vibe, in which you really explain the topics of your videos methologically and entertaining. Please keep up the good work, you made my day.

[@specific_pseudonym]

Oh hell yes I am making one of those bubble bath things. My niece is gonna freak out when she sees the ripples.

[@mbunds]

Yours is my newest favorite channel; the sky is the limit as you branch out into related topics. Fascinating, thank you!

[@YouCanHasAccount]

Please make a follow up video on how this relates to elastic deformation, plastic deformation and metal fatigue. Different things must be going on with the crystal structure in those 3 instances ...

[@gianniabsillis9947]

That bubble experiment is such a good illustrative example. Thank you for sharing that with us!

[@AlphaPhoenixChannel]

Any time Gianni!

[@bukachell]

Scientists: metal shouldn't bend *Me who just bent my spoon while eating*

[@cliftut]

Uri Geller wants to know your location.

[@tenebreonlabs]

Not directly from Steve Mould, just coincidentally ended up here at the same time it seems lol. Loving the videos! Suggestion for 2^14-some sort of lithography technique? Maybe it's vaguely redundant with 2^12, but it'd also be cool to see AFM images of the result.

[@nonchip]

"last time we used an electron microscope to build a play button out of individual atoms, so let's poke at some foil now" :D

[@cliftut]

And visualize the atoms with bubbles.

[@dominiquecamacho9668]

First time I have ever commented about a video in my life, but I love learning and the way you broke it down with comparisons, visuals,and reasoning was strength up.. gangsta.

[@AdityaXingh]

Most underrated channel I ever came across,

[@JosephPMcFaddenSr]

After seeing shoutout from Steve Mould I immediately became hooked on your postings Great job, thank you

[@myxfit]

Achievement unlocked: watched the video about 2^13 subs when the video had 2^8 views

[@AlphaPhoenixChannel]

PoWeRsOfTwO!!!!! yeah I spend too much time with computer numbers...

[@Jack-vq9we]

That's so cool! You can literally see the hole in the material propagate through, it makes so much more sense now. Nice video man.

[@farkstein1213]

hexagons.. are the bestagons

[@costynvd]

The compression and tension demo with the bubbles is so cool! I feel enlightened. Thank you!

[@Zscach]

One of the best videos on youtube. I noticed this kind of deformation when bending soft aluminium tubes as a kid- suuper trippy to look at up close.

[@dennisdecoene]

This, is the best video on KZbin. It made so much sense and was so satisfying to watch those ripples.

[@johndewey6405]

This is literally the best explanation of dislocation on metal I have ever seen. Really capture what every textbook on material trying to convey

[@beefgoat80]

I randomly came across your video on detecting leaks in vacuum chambers and liked the video. So I decided to subscribe. This is the second video of yours I've watched, and I thoroughly enjoyed it. The bubble raft demo was, IMO, top notch. Keep up the good work.

[@daveinwla6360]

Beautiful illustration of crystalline dislocation! I once worked as a technician in a metal fatigue lab, and it was dislocations piling up as they ran into each other due to stress-induced layer shifting that caused the metal weakening known as "fatigue". Seeing it illustrated with bubbles is very helpful to understanding the phenomenon.

[@blank_3768]

my god this is a good demonstration, there’s something more intuitive with this rather than staring at the drawing in a materials textbook

[@Simonjose7258]

That's exactly how the Statue of Liberty's exterior was created. "Chasing and Repoussé." The "chasing" is the carving and chiseling of details on the front and "repousse" is the hammering 🔨 of the basic form from the back. We usually use a bowl of pitch wax to hold the peice of metal... but any surface with give could work. That bubble demonstration is mind blowing! It literally behaves exactly 💯 like atoms under magnification 🤯 Wow 👏 love your enthusiasm. I totally get it. 👍

[@vikram.pandya]

As a educator myself, I really loved the practical demonstrations along with crisp explanation.

[@Jeffrey_Wong]

This blew my mind. Thank you for making such high-quality content freely available on the internet for anyone to enjoy.

[@tusharbhudia9421]

As a materials scientist this was one of the first materials experiment I did

[@justmehere_]

randomly came up on my recommended I think I just found the best and most underrated science KZbinr, this was so interesting to watch!

[@doctorbobstone]

That really is a great demo. Seeing all the dislocations zip through the raft is really neat. It's funny how great demos can make such an impression. One I loved from school was using a tilted sandbox to model river erosion. Seeing the right demo (or better getting to play with it yourself) can really make the concepts make so much sense.

[@drinductor8150]

Hydroforming could be pretty cool for the next play button, if not difficult. Keep up the great work man! Your videos have extremely high production value, excellent explanations and fascinating projects!

[@davidkempton2894]

Yep. I arrived via Steve Mould too! 👍

[@QuantumGravy]

I’ve been binging all your videos, you use the best examples I’ve seen across all of KZbin! It’s so intuitive, absolutely love the stuff you’ve made. Seeing your process (including the ‘failures’) teaches so much

[@1PoodleKing1]

I studied material science as an undergrad, and this video explains the concept of dislocations better than anything else ive ever encountered. I cant believe i havent seen this bubble raft demonstration before. Simply spectacular

[@AlphaPhoenixChannel]

Glad you like it! I also can't believe this isn't in every single materials 101 class

[@MrMikkmokk]

Dude.. Why have I not seen this before? I've taken several university courses in material science but I've never seen anything this intuitive. Keep up the good work! Your content is really great and also rather unique!

[@ra1nmaker001]

Your channel is great! I extend my motivation to you to keep making awesome videos! I joined because of Steve's shoutout and it was a great find :)

[@addol95]

I'm here via the algorithm. Love your energy and enthusiasm when discussing these concepts! Great use of visual examples.

[@rvikrv]

If you ever feel like it I would love to see a video about amorphous metals/ metallic glass. This is an very interesting topic where the properties can change drastically if you remove any crystal structure in the metal. Also thin film metallic glass in particular is interesting because of the fabrication methods like PLD

[@spikeck2]

That bubble demo is an amazing tool for getting your head around the idea. Thanks for bringing it to everyone's attention.

[@cmtlee]

Been a material engineer for so long but I have never seen any better demonstration like this before, absolutely love it

[@jamesgreen4522]

As an old man that has always loved science and engineering I love this new channel I have found. THANK YOU

[@curiousniffler6364]

I really like how you show that science isn't always perfect, actually that it can be annoying and a bit messy some times! Great work!

[@alphonsereitz]

My 9 & 6 year old sat through this entire video. Just another reason to love your content. Not sure how I haven't come across this one before though.

[@HexCopper]

Honestly I absolutely LOVE this video. I myself am a chemistry major but unfortunately in my inorganic chemistry classes my professors glossed over crystal structures but this is amazing I never thought of the specific atomic level actions for tension and ductility.

[@stevebroadbent5080]

You are an excellent physics teacher, by any measure. That's coming from an old guy who's studied and enjoyed working with science for most of a lifetime. Great work - keep it up!

[@Azegreen]

Wow this is a phenomenal visual aid on understanding crystal structure! Plane, but very intricate! So many years of materials science classes closely packed into one!

[@PedrovoriskAB]

your channel is amazing man.. keep it up..u tend to explain things dif than other and that makes it amazing!!

[@nicknolte5700]

damn that was so cool. congrats on the demo, really nice to see you carried on your passion! great work with the visuals as well, pretty trippy when the bubbles appeared on the metal hehe

[@conord827]

Its awesome watching your channel explode! The content is so good and interesting!

[@anchietacruz]

Wow, my jaw dropped. Fascinating demo. Never thought that away about metal deformation and crystalline structures.

[@GodlikeIridium]

This demo is so beautiful! And a great way to explain metallic bonds. Metals are easily deformable because there are no fixed bonds like in organic molecules or ionic bonds, instead the electrons are pretty much a cloud around the metal cores. Which is also the reason why they easily conduct electricity.

[@davidcaroe9234]

Really enjoy your videos! Jumped in surprise when you mentioned Bragg as he's my great great uncle, never thought he would have used bubbles like this.

[@everlyn6976]

This guy is so cool. I would normally be bored with stuff like this but he speaks about it with what I'm interpreting as a lot of passion, it's a super interesting watch.

[@ivelsoup]

Amazing video! Truly amazing. So glad you have almost 2^18 now!

[@BullseyeBailey]

welcome to the new subs, perhaps now that you've brought up crystal structure; you could grow a play button shaped crystal for the next one

[@Ha1ivan]

I’m surprised that I don’t see stuff this good on KZbin let alone a whole channel that makes cool demos like this one. Keep up the cool content!!!

[@sleal1194]

First time watcher! I got to say this was very interesting and cool to see and learning about this. Grate work!

[@zahrakruk2597]

Gosh, that visual representation using the bubbles is brilliant. Thank you so much for sharing this!