Steve Mould - 2023-09-30
Get 50% off your first month of KiwiCo. Use code STEVEMOULD at https://kiwico.com/stevemould This bistable auxetic material gets bigger in all directions when you stretch it. It's also becomes 3 dimensional! The paper by Tian Chen and colleagues is: Bistable auxetic surface structures, ACM Transactions on Graphics (TOG), 40(4), 1-9. (Chen, T., Panetta, J., Schnaubelt, M., & Pauly, M. (2021) https://dl.acm.org/doi/abs/10.1145/3450626.3459940 You can find the cut patterns and other recourses here: https://github.com/UH-AIM/bistable-auxetic-surface-structures Tian is currently working at the Architected Intelligent Matter Laboratory: https://aim.me.uh.edu/ Here's my video about flexible polyhedra: https://youtu.be/JiC6DbBoV4Y Veritasium video about compliant mechanisms: https://www.youtube.com/watch?v=97t7Xj_iBv0 Here's my Discord server: https://discord.gg/B6uNzAgshy You can buy my books here: https://stevemould.com/books You can support me on Patreon and get access to the exclusive Discord: https://www.patreon.com/stevemould just like these amazing people: Alex Hackman Glenn Sugden Tj Steyn Pavel Dubov Lizzy and Jack Jeremy Cole Brendan Williams Frank Hereford Lukas Biewald Damien Szerszinski Marshall Fitzpatrick Heather Liu Grant Hay John Zelinka Paul Warelis Matthew Cocke Nathan Blubaugh Twitter: http://twitter.com/moulds Instagram: https://www.instagram.com/stevemouldscience/ Facebook: https://www.facebook.com/stevemouldscience/ Buy nerdy maths things: http://mathsgear.co.uk
"Bi-stable auxetic structure" is not as cool as "space bra"
100% that is literally what i comment too
If I had boobs I would wear that
*bi-stable. The subtitles are wrong.
@@DW-indeed I'll be honest, that was my typo rather than the subtitles... I didn't have them on 😂
I'd actually be curious if there's a practicality to a "space bra", like being able to print to your exact size and shape.
He made a bra for robots 🤖
*cyborgs
Kinda revealing for a bra
I was just thinking that
I was thinking the same thing
@@shreddedtwopack6625also has no support, so it’s not good for any purpose
Lore accurate boobie armor
Ain’t no way you have almost 1.5m subscribers and only have 46 likes and no replies in this comment
hi dan how are you doing
emergency bra
One piece moment lol
insta boobs
Great music choice on press clip :D
i like this reference
For some reason I find that shape with the two domes very pleasing.
i wonder why
You must be a male squirrel.
An interesting structure indeed
neurons: activated
Gay it means you like balls
My first thought for this is that it would make a great concept for a tent. The "walls" of the tent would also be part of the supporting structure. Once it's expanded you could insert a Lock Block so it would be harder for it to collapse back down.
Fully functional tent at just the pull of a rope
With lots of holes 😉
@@landsgevaer just make the triangles tiny with stretchable mesh underneath
@@rennoc6478 already exist: https://youtu.be/ftFefk5ai2A
sorry for the video being french, dunno any other manufacturer that does it.
@@TidusleFlemard I have on eof those, they arent bad but they have one flaw; putting htem back into the packaged state. The way they work is by using flexible carbon fiber tubes wich are twisted in such a way that they act as a spring. When you remove them from the bag they are compressed in the spring into a tent shape. The problem is when you want to pack up you now have to exert force in sepcific and often complicated ways to get it back into a compressed state, wich is usually a hassle. A tent with the videos mechanism would have the advantage of being able to gets "undeployed" with minimal work required.
I can see uses for this as is, tbh. Imagine attaching a light, stretchy material to the interior of this, in the shape of a strapless bra (which hooks for attachable straps).
Well, now you have a bra that lies perfectly flat in a drawer or suitcase.
You could do very very similar ideas with containers, like backpacks or purses or lunch bags, or even sleeping bags or tents.
In fact, most of the use-cases I can think of this, before you get to the molecular level, at least, are in light civilian camping equipment. Seems just absolutely perfect as is for it.
But it would never lie flat for a bra, backpack, bag or whatever you used or made, it will always be just as thick as a real bra at minimum, and for the "molecular level" why does it matter anyway? You want a bra that is so thin you might as not have one on? It doesn't make much sense, the strenght of the material corresponds to the thickness so no, it would never be flush with a draw even if it was made even smaller, a item has to have a mass and space to be a item, and dont think I'm just saying this about one of the examples it works for all the rest, you have a bag, ok now the bag is weak because its very thin so you can only carry maybe 1/4 of a normal real backpack which is useless seeing how a bag can basically be put anywhere once its empty, a purse? Sure maybe but it's still easier to you know, buy a purse instead of hoping oneday we create super strong, thin and elastic material that can be used for anything more than greenhouse walls or covers on your milk, the tent one is much better but still has issues, this would never stand up again a light breeze and if it was the size of a tent, it would be HUGE and harder to use because tents roll up, this would have to be kept flat in one piece until you needed it and then you still would need supports, pegs and a cover otherwise all you have is a plastic sheet with holes in
@@KillthefishYou sure yap a lot for being completely wrong 💀
this feels futuristic, im glad the world is getting more advanced like this
Quiero un fembot hecho de ese material
what an aesthetically pleasing shape
mhmmm mate sure "aesthetically pleasing"
Lmfao
Very aesthetic and very pleasing
The fact that a painting, 100s of years old, when applied to a material becomes a really neat process of scientific mechanics and geometry, is kind of crazy
aliens
Like?????? How much else is hidden hehe geometry is weird
Math is math I guess
@@wormbigailSacred Geometry - its an area of study in its own right.
@@BLEKSIDE humans, actually. Humans with math.
During a very technical and academic explanation, hearing "the dome shape or whatever" at 7:28 made me laugh for some reason
Perfect material to make bras and hats that fold flat for packing into suitcase 👌
3:42 - Yes, a very interesting shape indeed.
Can you imagine clothes from these materials? Completely flat in one state, perfectly fitting in another? Seems amazing to me
Don't forget see-through.
@@azrobbins01 seems cool for the summer :)
@@azrobbins01 quiet part out loud! Shhh😂
@@azrobbins01you can probably put some fabric between joints to make it opaque. Then it would work perfectly
Yes! This one thing looked like a bra. How cool would it be if the bra were flat while washing and storing but in the perfect shape while wearing?!
That graph you show at 7:38 is pretty much like the graph of an endothermic reaction. This material could easily explain that concept to students in a fun and tactile way. Also, what you were saying about bistable, auxetic molecules, if you look into how hemoglobin works it’s kind of like that. My professor in Biochem explained it with two foam dice, before Oxygen attaches the dice are shrunk next to each other (form 1), then when Oxygen attaches they expand, but they’re limited to that cube shape and touch side by side (form 2). Hemoglobin gets more complicated than that, but that’s an example in nature that comes to what you were suggesting.
3:43 I'll give it to you that this shape indeed attracts attention.
1:22 Haha you had my eyes bawling at the shout out the hydraulic press, absolutely genius Steve!
I was amazed it took me this much scrolling to find the first comment to mention Lauri or the Hydraulic Press Channel
As soon as I heard the music I laughed, before I even realised why. Brains are weird. This was awesome and clever.
I'm rather unhappy that HPC doesn't have the music anymore.
@@jaredkennedy6576 I apparently haven't seen a video of theirs in a while. They haven't had the intro for almost 2 years now (last one I found was Jan 2022 on the Cheetos into Donut video and then Sept 2021 before that) ... that's sad. The music was so iconic that I heard like 4 notes and immediately knew it was a HPC reference.
And now with the last two "normal" videos I kinda wonder if Steve's been putting these things in for ages and I just finally got two of them. (The Technology Connections one being the previous one)
😭
That is an interesting structure. I'm very interested in the structure of that thing.
💀
the point of making it that shape is possibly to gain popularity...
Very intriguing structure indeed!
You might say that it is so interesting, that it may apply transformative forces on secondary structures as well!
I never considered myself particularly brilliant, but I appreciate how you were able to explain all of this. It was perfectly understandable and kept my attention throughout. Super fascinating topic as well. 10/10 im glad to be a new subscriber
I did not expect to leave this video with this much new knowledge, very well explained!
The heat map at 7:00 is possibly the best visual demonstration I have ever seen for a level curve on the graph of two variables. I genuinely hope that younger students will see this video before they cover the topic in classes because it would make it so much easier to grasp it. Or at least it would have helped me a lot. Your videos never cease to impress.
Wish I could like this comment multiple times. I was thinking the same thing, that visual representation helped my brain process the rest of the information he was sharing on the screen in that moment.
It seems to me like the best possible example of a level curve for the graph of a function of two arguments would just be... The actual level curves on topographical maps?!? What am I missing?
@@robertofontiglia4148this example might be useful in showing an application that doesn't require a third dimension in space, and can instead be indicated by colour in the 2D graph, which might help some students understand why bother with such graphs in the first place rather than just popping out into 3D. Sorry I don't think I'm quite describing this well. Anyhow, different students find different examples relevant in different amounts; for you, the best example might be a topo graph, while for this commenter the heat maps shown here felt even more illuminating. sometimes things get described (and understood) more absolutely than relatively, perhaps because that's easier to convey, even though it's sometimes only an approximation of what is meant. dunno.
For your whiteboard cube contraption: Attach any random tiles from the board game "tsuro" and both states will be legitimate placements. You could also drive yourself fully insane trying to find the specific "Carcassonne" tiles that would work
Not that hard. The only real requirement that the cubes have is that when you open it up, opposite sides of any void are identical, while the other two sides are a mirror image of that. So with the Carcassonne tiles, just surround any single void with a single color, and you're set. I suspect he is only having difficulty because he wants the edges to be clean, which requires three sides of any of the corner pieces to be clean.
you could make an algorithm to check that game that i never heard of and will not even attempt to spell
@rianfelis3156 anyone who plays with rubiks cubes will figure out how it works.... and THEN try and solve it
Similar to the Tsuro idea, you could make a very fun toy with roads on it which rearrange themselves as you push and pull it.
imagine how cool this stuff would be to make a frame for a tent to be able to pack away with ease just folding it flat & putting it in a bag or something, assuming it could fold over itself
It'd be a really cool frame for a tent to just pop out & chuck a cover over
I imagine too with stronger materials this could be used for so many things
you could even have small expandable pieces of furniture that are easy to slip away in a small space when you don't need them out
Incredible video. Brilliantly explained, loved learning about it.
1:23 When the channel theme of the Hydraulic Press Channel started playing (when the cork got compressed), it gave me a wide grin and I started laughing. Thanks! 😆😂
Protein based bistable structures reminded me of an old idea: crunchy gum. Not really a reason to develop the tech in its own right, but it's an accessible tech demo, and probably a great stim
I want to try crunchy gum! That sounds incredible!
I'm almost convinced that's a thing. Cause iirc there's a stimulating gum I heard of before.
i want this
Give us the crunchy gum
What's crunchy gum?
Compliant and Self-assembling shapes are so cool!
Me in the first minute: An interesting structure indeed.
I'm a Mechanical Engineering PhD student researching auxetic sheets (specifically how to embed actuation and sensors while manufacturing them to create smart robotic skins), great video on the topic! It's awesome to see more public attention given to the work done by Mina (6:27) and Tian (3:55), they're doing lots of cool work in computational graphics and design optimization on the subject!
Not asking you to dox yourself, but are there papers you'd recommend as a start?^^ Sounds very interesting
@@EliasMheart I second this, I'd love to learn more about it
I'm a Mechanical Engineering student, and Tian was one of my Professors! Small world! It's awesome to see cool research done. I go to the University of Houston, he teaches Computational Fluid Dynamics and Solid Mechanics.
Would be interesting to see these structures made of Nitinol which has some similar applications
Thanks Steve. You're our blessing.
your video was absolutely amazing. Thank you for your teachings and your great presentation. I will purchases these products for my son from your affiliate marketing as well as your wonderful educational presentational material. I'll pass it all along to the next generation. Thank you again, my friend!
The Hydraulic Press Channel reference was inspired! Bravo!
Awesome. Thank you. Also, absolutely perfect Hydraulic Press Channel allusion!
Been a long time since ive come across something that makes me smile for the future. Nice! Possibilities are breathtakingly infinite
great job explaining that, love your videos
The fold-away bra! I love it.
Looks like some flat-pack, intensely uncomfortable bras.
This was my thought exactly.
The new Himmelbjerget bra from IKEA
(I know, I know, Himmelbjerget is in denmark, but it was the funniest skandinavian sounding word that I could think of that might be understood by at least some people)
Luv this! Between cooking muffins and omlette on xmas! Thank you❤
8:50 Absolutely mindblowing. Literally having chills as a med student hoping to go into cardiology. Made me read up on some research about auxetic stents and auxetic cardiac patches. Crazy
0:10 an interesting structure indeed ( ͡° ͜ʖ ͡°)
i haven't watched HPC in years, you hit me so hard in the nostalgia bone
I didn’t know about this material yet thank you SO MUCH NOW I KNOW MUCH MORE
Love the hydrolic press reference
lol, love the nod to the hydraulic Press Channel. Great video.
I wonder if you could make an auxetic structure out of shape memory alloy. Then it would expand and contract automatically when heat is applied. Might make for some handy window shades.
That would be a great retrofit for all those stupidly-designed houses with windows facing west!
@@Roxor128imagine being so stupid though, that you thought energy efficiency was the only goal of building design.
This could be an amazing product.
Sure if you want to pay $20,000 for your window shades
Work is currently being done on this in some universities! Super cool stuff.
Good job getting on the eye catching design for any man.
I feel like these would be great for quickly building structures for habitats on the moon and mars. They could be easily packaged for space flight and quickly erected to serve as the support structure that a strong airtight fabric could be draped over and fastened to.
Yes and no. That structure would be 10-20 meters each way. Unless you pack it like an origami, which could save space, as you'd need 1.2x5x5 space to create a 5x5x5 cube.
That Hydraulic Press Channel joke straight up killed me, I love how you're the master of friendly parody of other YouTube channels at this point
Loved the hydraulic press channel reference
@SteveMould - 2023-09-29
I never mentioned: The rubber sheet is the stuff you use to makes stamps. It handles a laser well for etching which also makes it a good material for laser cutting, which is how these cuts were made!
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@tinnguyenanimations522 - 2023-09-30
how did this video come out 1 minute ago but your comment if from 18 hours?
@wolfassassin359 - 2023-09-30
Mechanical press channel confirmed?
@arrianmian7294 - 2023-09-30
Space bra
@VindicusVore - 2023-09-30
I can also see huge potential for this in the space industry, especially for colonization.
@tinnguyenanimations522 - 2023-09-30
@@mickeyfilmer5551 ah, ok, thanks