Edit: I found out after uploading that the Lego model is the creation of a KZreadr! Check out their channel: kzread.info Is there anything you *can't* explain with a 2D model? The sponsor is Skillshare: The first 1000 people to use this link will get a free trial of Premium Membership: skl.sh/stevemould01211

@zacharygegare7294

3 жыл бұрын

4 dimensional space

@yboul

3 жыл бұрын

Automatic Measured Bottle Pourer

@lordlightspeed

3 жыл бұрын

the rotation of a 3 dimensional object, you need 4 numbers to do it.

@the_hanged_clown

3 жыл бұрын

isn't this an example of dymaxion principles?

@dirtybirdsf

3 жыл бұрын

@@zacharygegare7294 Beat me to it by 30min

Much like myself, it is being held up entirely by stress.

@GreedyOrange

3 жыл бұрын

im 14 and this is deep

@ronwesilen4536

3 жыл бұрын

@@GreedyOrange i am 24 and it pierces me

@1.4142

3 жыл бұрын

Figuratively and literally because 7:58

@GreedyOrange

3 жыл бұрын

@@1.4142 gotta watch out then,for someone might try to 5:54 you...

@alvindarby7182

3 жыл бұрын

@@ronwesilen4536 I'm 75 and my heart is busted

A third cable makes the table stable!

@columbus8myhw

3 жыл бұрын

With as many rhymes as you're able

@Talaxianer

3 жыл бұрын

- Sir William Shakespeare

@Salien1999

3 жыл бұрын

--"Dr" Seuss

@kaenderguru894

3 жыл бұрын

wow thats incredable

@SpydersByte

3 жыл бұрын

@@joshyoung1440 he's just talking about the 3 on the outside, or did you not pay attention?

I think this gets needlessly overcomplicated which is why people get confused despite how simple it is. The middle one holds it up and supports the weight. The outer ones stop it from tipping in either direction. This creates a stable equilibrium.

@foiled6144

9 ай бұрын

thank you that is a way clearer explanation

@itsgonnabeanaurfromme

3 ай бұрын

Well yeah that's a simple explanation but poorly defined in terms of mechanics and physics. That's like saying, gravity is easy. Stuff gets pulled to other stuff.

@John_Kennedy27

3 ай бұрын

@@itsgonnabeanaurfromme Hardly poorly defined in terms of the mechanics and physics. Throw in the word tension a few times if you like

This concept would be so cool to apply to earthquake technology in buildings. Super stable along the y-axis, but there’s motion in the x and z axises. Tho I wounded if the concept would break down at a larger scale.

@davidwilhite5046

2 жыл бұрын

I had that same thought process when I came across this video. I wonder how beneficial it would be in the real world

@TheMrPandaGamer1

2 жыл бұрын

The only problem i see in this is the fact of a building being incredibly heavy. It may work nice with light structure but could be a disaster on heavy structures.

@MIZUch.

2 жыл бұрын

@@TheMrPandaGamer1 Yeah, imagine just one support link breaking and the whole thing catastrophically fails

@An_Ian

2 жыл бұрын

The issue is how would you build such a structure capable of supporting a skyscraper? Hell anything larger than a sofa would probably be a marvel if engineering to work long term

@PhantomSavage

2 жыл бұрын

I think the main problem is, if its a skyscraper, how does it hold up under the tremendous weight? It seems pretty stable under normal conditions, but if an earthquake shakes the entire base of the structure to too much of an angle does the whole thing become top heavy and collapse?

This makes perfect sense to my brain, but it still confuses my eyes.

@minktanker9705

3 жыл бұрын

it might be better to consider the strings as regular columns like table legs

@Shitpost162

3 жыл бұрын

@@minktanker9705 probability

@MonoChorMe

3 жыл бұрын

In tbis case, this is in a sense, a visual paradox... rather than a _typical_ mental one. 🙃

@gamerp1g

3 жыл бұрын

yeeees

@Vekcrazah

3 жыл бұрын

It's easier to think of it as 'this is not a support structure, but a hanging one'

A cool example of tensegrity: bicycle wheels. The spokes are all in tension, meaning they can all be lightweight wires.

@florian-schaefer

3 жыл бұрын

There are even textile spokes made from special polyester that can handle very high tension and are even more lightweight than wires.

@joseville

3 жыл бұрын

Wow, you're right! Never had thought about that.

@tracypanavia4634

3 жыл бұрын

Essentially the hub should hang from the spoke, not sit on it.

@No-pm4ss

3 жыл бұрын

What? Seriously? My entire life, I thought the spokes pointing down carried me through compression. Figured so as a child and it never occurred to me that it might be different...

@Maninawig

3 жыл бұрын

I am always amazed at spokes, as it seems to my childish thoughts that only 3-5 is in compression against your body, but it uses tensegrity to make the whole wheel hold your weight.

Tensegrity structures are magical for many because we are so "matter" driven. matter like rods and beams can be seen and appear solid. Forces cables etc are not so obvious but always present. the anatomy reference was spot on. Your analysis was incisive and consice. never have see the 2d analysis until now. Thank you for your work on this.

I've always just seen it as the middle wire actually holding the top part, and the exterior wires balancing the piece

@migBdk

2 жыл бұрын

That is a totally correct way of looking at the problem. It's also my preferred perspective.

@tejasagarkar2478

Жыл бұрын

Yup. Same

@louisthelemur1238

Жыл бұрын

Same way I look at it.

@jonpong4676

Жыл бұрын

Does this perspective work if you turn the structure 90° and hold it horizontally? There's no more top/bottom part and no balancing.

@ZarlanTheGreen

Жыл бұрын

How? How would the wire hold it up? Why doesn't it just flop down?

I want to make enough to replace all of my chairs with giant versions of these and watch my guests freak out.

@darshandhabale143

3 жыл бұрын

Yeah I thought of doing that too, with my tables But chairs thats hella awesome

@davidhutchison5415

3 жыл бұрын

@@attachedflower8008 what's ancient is using the term "special needs" as an insult. Grow up man.

@goodassjob7714

3 жыл бұрын

@@attachedflower8008 "ugh, everyone who isn't as smart as ME, the LARGEST FOREHEAD on EARTH, is MENTALLY DISABLED."

@xmo552

3 жыл бұрын

I've seen chairs like that

@bembaure

3 жыл бұрын

@@attachedflower8008 just because somethings old doesn't mean everyone knows about it

Ha! Pretty cool to see my LEGO version of this model pop up in this video. Cheers!

@SteveMould

3 жыл бұрын

Hey KJ. I'm sorry I didn't do enough research to figure out it was you and to mention you in the video. When I get home I'll put a link to your channel on the end screen and I'll mention you in the pinned comment! Thanks for a great model!

@vodkat07

3 жыл бұрын

Well-

@JKBrickworks

3 жыл бұрын

​@@SteveMould No worries, man, it's all good. Cheers!

@db5094

3 жыл бұрын

@@borkly2491 he made the comment 50 minutes ago, hes prolly still outside chill

@isobellabrett

3 жыл бұрын

@@borkly2491 it's changed now

I was absolutely not expecting to see my hometown in this video! Brisbane's Kurilpa bridge is pretty unique. I had no idea it was built with tensegrity.

@nevillewran4083

2 жыл бұрын

Brisbane has a clever bit of physics inside public infrastructure? I'm amazed. I've only been back once since Bjelke-petersen was kicked out. It was a backwater than. I'll have to revisit.

@kingjezza6567

2 жыл бұрын

I've seen the bridge many times, as I'm also from Brisbane... and I didn't even know what tensegrity was.... just thought the bridge was creatively build..

@nevillewran4083

2 жыл бұрын

@@kingjezza6567 I always thought tensegrity meant worried and sandy...

Hi Steve, really good video. I've just graduated from university for Mechanical & Materials Engineering. Though not at all relevant to my personal work, I found your video really enjoyable & stimulating, you have such a calm and relaxed way of explaining things, you're a natural teacher. Thanks!

Tensegrity sructures are proof of an old quote: "any sufficiently advanced technology appears as magic"

@gaminghardx

3 жыл бұрын

True

@tokumo2190

3 жыл бұрын

True

@spacecube40

3 жыл бұрын

False

@hugeluigifan

3 жыл бұрын

@@spacecube40 true

@spacecube40

3 жыл бұрын

@@hugeluigifan True

Oh yes that old saying everyone remembers their mother whispering into their ear at night: "two points fixes a line, 3 points fixes a plane"

@ndbd9drn

3 жыл бұрын

lol my parents and uncle told me science-y bedtime stories so that's actually relatable.

@ManjotSingh-sf2ri

3 жыл бұрын

Underrated comment

@ambulocetusnatans

3 жыл бұрын

My mum used to say "the force of gravity acting on two objects is inversely proportional to the distance between them." Ah, the memories of youth.

@MSheepdog

3 жыл бұрын

My mum always warned me about colinear points.

@scottlux2904

3 жыл бұрын

In my family it was "Pi R Squared. No Pi are round. Cornbread are squared."

WoW, very complex stuff made simple by your 2D explanation. Thank you.

That is incredibly interesting! Thank you so much for taking the time to make this video❤

One sentence version: The central rope carries all the weight, all the other ropes just keep it in balance by preventing it from falling to any one side.

@SmallSpoonBrigade

3 жыл бұрын

Yes, and if you put a weight at the point where the cable connects the top and bottom shifting the center of mass to below the point where the cable attaches to the base, you could probably dispense with the additional cables completely. Of course, the thing would likely pivot around and point in different directions, but it would work with a single connecting cable.

@dans4323

3 жыл бұрын

Exactly, so I was thinking. Could you make a stool with only the load-bearing cable and do the balancing part with your feet while sitting on it? This would allow the stool to collapse when not in use for easier storage.

@wobblysauce

3 жыл бұрын

And there are a number of those seats available.

@Horvath_Gabor

3 жыл бұрын

@@dans4323 So a piece of wood hanging on a wire or chain, without anything under it? Where I came from, we call these revolutionary new sitting apparatuses "swings".

@josephmerrill2686

3 жыл бұрын

@@SmallSpoonBrigade You could make a prop with a hollow, light weight top and heavy bottom and hide the swing mass and really trip people out! Referring to the "top" piece hanging from the base.

My dad has been making these for years. He's got a massive one as a table in the garden that confuses the hell out of anyone that visits XD

@warrene3365

3 жыл бұрын

I was just wondering how big can you make these.

@alikawtharani3814

3 жыл бұрын

Yo, can you show us a pic?

@shannonp4037

3 жыл бұрын

@@warrene3365 As big as you'd like. As noted in the video, there are bridges made similar.

@marcelwo4jedynki

3 жыл бұрын

@@alikawtharani3814 he made a video about it on his channel in nearby future

@keent

3 жыл бұрын

@@marcelwo4jedynki you sir is a time traveller

This is insanely awesome. BRILLIANT! The object is essentially balanced from "the top" instead of "the bottom".

You could create ringing percussive instruments with incredibly long sustain using something like this. and you could have them all connected by a series of tensors, as a single unit, which would allow them to interact with each other harmonically like an even more harmonically integrated harp... but percussive... Think something like singing bowls, but all integrated into each other through the harmonic series and the natural resonances of their structures travelling along the tensors, while still retaining their own voice in the system. :O like this would literally be incredible. But it would be a BITCH to tune(the tensors)and to design. EDIT: digitally controlled tensor tuning mechanism. with selectable presets :D

@malegria9641

Ай бұрын

I’m a percussionist and you have given me some very expensive ideas

It’s kind of like a magic trick: All your attention is going to those longer outer wires/strings/chains/etc. But the actual work of holding up the structure is done by that one in the middle, which holds the upper piece so it can hang from the base. The outer wires then keep it in balance.

@jeffpeepee3684

2 жыл бұрын

Still it looks like the middle wire wouldn’t be able to that!

@kriskater

2 жыл бұрын

Best explanation 👍🏽

@stanlee2200

2 жыл бұрын

Well duh

@zinebbekhtaoui5643

2 жыл бұрын

i don't think so cause then it wouldn't hold its shape when it's no longer in a vertical position

@Rowgue51

2 жыл бұрын

@@zinebbekhtaoui5643 The cables are providing tension in opposition to each other. It has nothing to do with orientation or gravity.

7:38 never in my entire life did I ever think we, as a species, would create a robotic tumbleweed.

@rebeccabeiter9458

3 жыл бұрын

CP Grey must be in shock right now😂

@DanteTimberwolf

3 жыл бұрын

*texas cyberpunk 2077*

@abadgurl2010

3 жыл бұрын

Well, things in nature have purposes for their features. I'm surprised that our species didn't think to make a robotic tumbleweed sooner.

@jasonleejames_official

3 жыл бұрын

@@abadgurl2010 what if tumbleweed is just insects engineering a vehicle? They could be rolling around in there and we'd never know.

@joeschmoe511

3 жыл бұрын

True. Along with mechanized cigarettes, mechanized joints and a.i. drones.

That was really cool to watch and learn about, cheers Steve. It's getting late in Aus currently, but I feel a bit of a binge of your content is coming up tomorrow when I wake up.

out of all the surprising stuff you showcased in other videos, this is one which i immiedetely just understood, probably something just "clicked" before and i understood it just from the thumbnail

This man's house would make the perfect therapy office.

@rwin3606

3 жыл бұрын

Sure it would

@ineedabetterpfp2485

2 жыл бұрын

It sure would

@Deaf0

2 жыл бұрын

Would it sure

@wateredbottle2529

2 жыл бұрын

It would sure

@reygenne1

2 жыл бұрын

Surely it would due to the ambient that emits from the background.

When will the devs fix this glitch.

@subboytris8946

2 жыл бұрын

Probably never

@muhammadalvarezafannani2922

2 жыл бұрын

The dev : it's a feature now

@venomasmark154

2 жыл бұрын

I actually heard we're on the verge of getting no more updates, guess the devs have simply gotten bored...then again I heard that from a leaker so it may be a lie

@subboytris8946

2 жыл бұрын

@@venomasmark154 yeah

@subboytris8946

2 жыл бұрын

@@venomasmark154 there are also bugs about bouncy balls, when you throw it in a straight line you expect it to bounce in a straight line but sometimes it bounces on the left or right

First time I saw a tensegrity table , it took me forever to puzzle it .. now I see the forces in action at a glance .. beautiful structure .. it’s being held in place from falling over , similar to somebody helping you up by leaning back to balance the forces .

I love the 2d models, you're a genius for figuring that out!

Me: showing a 2D version won’t help with anything Me not even 20 seconds later: wow that makes sense now

@bethanylowe8773

3 жыл бұрын

Exactly what happened

@seriouscat2231

3 жыл бұрын

"Showing a 2D version did not help me with anything. But less than 20 seconds later I was like wow, that makes sense now." Where has this retarded "me: whoosh / me: splat" style come from?

@cirejc2235

3 жыл бұрын

@@seriouscat2231 boomer

@seriouscat2231

3 жыл бұрын

@@cirejc2235, what? Some guy with that name invented it?

@sixstringedthing

3 жыл бұрын

@@seriouscat2231 you know what a meme is right? Same principle. It's a linguistic meme, one of many.

3D Model: WHAT IS THIS SORCERY? 2D Model: Oh I get it 3D Model again: Its Magic 2D Model again: The rubber bands really make this easier to understand because of the visual stretching

@justinlavine9209

2 жыл бұрын

None of these models are in 2D. There are at least 3 spatial dimensions under consideration in each example. The direction of these applied forces has nothing to do with the imaginary force of gravity (which is a lie) and everything to do with the very real weight & mass of the objects used in the examples. To the extent that the "tensegrity" in these examples are immobile, this requires the summation of these forces within the system to be zero. i.e. in static equilibrium.

@ilovefunnyamv2nd

2 жыл бұрын

@@justinlavine9209 yes, even a sheet of paper , the lead on the paper, or a strand of hair has thickness, and as such is not limited to the x-y planes. I'm sure the you've always learned your physics with extraplanstory forces included. for the rest of us, we started with simpler concepts like a mass on a frictionless surface.

@justinlavine9209

2 жыл бұрын

@@ilovefunnyamv2nd I actually abandoned my college education in engineering & mathematics after seeing the atrocities Americans were committing for their scientific theories. I have a family member who was involved in the Challenger disaster and got to watch the shuttle burn up on launch as a school child. The failure that is NASA was then rewarded for committing this National tragedy by being given a bigger budget to hire Tom Hanks and shoot the movie 'Apollo13'. At least SETI was more or less shut down...at least until Google(TM) & Elon Musk decided to jump on the pseudo-science bandwagon.

@raiyiar

2 жыл бұрын

@@justinlavine9209 yea, i kinda see the point of you being away from real people being a win-win - nobody poops at the parties, and you get to don the tinfoil in style online

@justinlavine9209

2 жыл бұрын

@@raiyiar Thank you! With a real job, I actually have free time and enough money to afford my own place.

The central string and curved arms stop the top and bottom plates from moving towards each other, and the outer 3 strings prevent them from moving away from each other.

@rossfuller3224

Жыл бұрын

Duh

I love engineering, thanks for the great video as usual. As a BSME I always say Free Body Diagram as a rule in statics, but this raised a lot of other great points I was unaware about those toys. 😁

Man I bet you could make a really cool musical instrument out of that tensegrity platform. Hit it like a drum and tune the wires to harmonize on a note.

@fuseteam

3 жыл бұрын

do it do it do it

@lukeonuke

3 жыл бұрын

@@thesure1 HARDER!

@FMHikari

3 жыл бұрын

Instructions unclear, harmonized with a parallel universe

@naveen5126

3 жыл бұрын

You are smort

@maxk4324

3 жыл бұрын

Ha! Thats a load of.... Hmmm... One sec [scribbling and calculator noises]... you mad fucking genius.

ah yes: "the string wants to collapse but constant stress is keeping it up"

@fpv568

3 жыл бұрын

relatable

@ian59

3 жыл бұрын

The set up and the spike. You guys should play volleyball together.

@user-ko4zp1wm2i

3 жыл бұрын

Maybe i am Not human but tensegrity

@anujbangad3973

3 жыл бұрын

*Underrated*

@YataTheFifteenth

3 жыл бұрын

Mood

I like this video. I haven't watched more than a minute of it yet, but I already know how fun this guy is, so I expect this one will be as much fun as the last one, I think that one was on the different types of toilets. I got a kick out of that one! Anyway, this is why I question the 'completeness' or 'integrity' of my education: I look at that miniature table, and I understand it completely. It doesn't mystify me any more than any Escher drawing I've ever seen. It's actually incredibly simple: The wires are stretched by the aluminum that's compressed by the wires that are stretched by the aluminum that's compressed. Now, I haven't watched much of the video yet, but I KNOW that this guy is going to give a 'proper' description of the materials and forces involved, what they mean conceptually, and how they integrate into a complete, unique instance. An abstraction of the concepts he describes. A physical object. The thing we see sitting before us. I can do all that in my head easily. Almost instantly. (I was gifted with a sharp mind, I suppose I inherited it from my parents, so I don't take credit for it, I am thankful for it). But having a sharp mind doesn't mean you can easily describe or impart to others what's on your mind. I have ZERO clue how to explain what I SEE in my 'mind's eye' to ANYone else. So I envy, or admire/appreciate it when I can see someone like this fellow who **IS** capable of sharing what's inside his mind with others, to the benefit of their understanding of the world. That's why I question that business of my education. I wish I knew if I'd be able to do what he's doing if my education was somehow 'better' or more 'complete'.

Only 4 minutes of your video, and I imideatly understood the concept. Thank you!

7:20 Why didn't my science teachers ever show us this kind of shit when they wanted us to make vessels to protect a raw egg in an egg drop?

@rogerroberts1310

3 жыл бұрын

You were there to LEARN

@RCAvhstape

3 жыл бұрын

It was a test to see which of us could figure it out. If you did, the aliens took you away to train you as a Gunstar pilot #LastStarfighter

@dakewllicher3522

3 жыл бұрын

@@rogerroberts1310 sure, learn? With 0 examples? That aint possible

@rogerroberts1310

3 жыл бұрын

@@dakewllicher3522 In other words you expect to be fed answers to problems vs applying your understanding of what you need to do to obtain the needed results? Follow that reasoning and you will fail at some point simply because you have to continue to develop new understanding and new processes. If you don't you live in the past and what you know no longer has value.

@dakewllicher3522

3 жыл бұрын

@@rogerroberts1310 funny, your telling me you can learn how anything works, without an example to actually know what your supposed to do? I said examples not straight up answers 2 diffrent things idiot.

Talks about Tensegrity. Sponsorship: no strings attached.

I have never seen anything like this, very cool. Thank you for sharing

I saw the thumbnail and thought a sec and realized how this all works. Very creative!

this feels like one of those troll face infinite energy jokes

@TehGamerPro

3 жыл бұрын

Step 1. Cover yourself in oil.

@kirbomatic1573

3 жыл бұрын

1. Stress wires 2. Make a table with the top connected to the bottom with said wires 3. Floating table U mad scientists?

@hybmnzz2658

3 жыл бұрын

Problem?

@smug303

3 жыл бұрын

@BB Jerry actually, it's step 3

@junkyyard2273

3 жыл бұрын

@@smug303 Was that in the procedures?

Another name for this principle is "dynamic tension". It's something I was taught in college, when I was studying to become a mechanical designer. In the model from the thumbnail, the shorter, central chain bears the weight of the upper piece, while the 2 longer chains act to keep the balance, and keep the upper piece from falling backwards. It's an interesting exercise in learning to see lines of force, and how they interact with each other.

@RicoLee27

2 жыл бұрын

That is the simple explanation that made me finnaly understand it.

@marcokik677

2 жыл бұрын

This reminds me of metal bending

@slashgamere

2 жыл бұрын

Thank you for this information

@MeatBunFul

2 жыл бұрын

Very easy to understand this explanation. Thanks

@erichansen3180

2 жыл бұрын

Interesting that you learned it in engineering/design, I learned the concept in anatomy, our bodies are built this way.

The structure at 9:00 is the most intriguing to me. Only uses one supporting cable. I understand how it works (I think) but it still blows my mind.

I'm desperate to know if it can hold a cup of tea!

@navyntune8158

3 жыл бұрын

Don't put it on the wrong side

@thatoneguy9582

3 жыл бұрын

I wouldn’t trust it but probably

@vijayakrishna07

3 жыл бұрын

Kurilpa bridge !

@kriss3d

3 жыл бұрын

The wire at the center decides that. If you have a even small steel wire it most certainly could hold a gallon easily as well. The outer tension cables decided how much sideways motion it allows.

@KevinTan

3 жыл бұрын

if you're putting a cup of liquid, make sure its super hot first. just kidding, don't do that

"it wants to collapse but constant stress wont allow it" -some weird cool model

@vhroom3436

3 жыл бұрын

Thats a bit too relatable

@ApequH

3 жыл бұрын

@@vhroom3436 Totally

Never heard of Tensegrity before, even though I went to Art School which included architecture! Great explanation Steve and a brilliant video. :-)

So just how the 2-D tensegrity structure was unstable in 3 dimensions, would that make a 3-D tensegrity structure unstable in 4 spacial dimensions? What would a 4-D tensegrity structure even look like?

@cessposter

Жыл бұрын

4 cables?

7:38 - Finally, a synthetic tumbleweed.

@thenasadude6878

3 жыл бұрын

@@FirstNameLastName-rh6zc i don't think so, vegetals in general are not. Their components work both in tensipn and compression (even the trunk works in tension when it's windy) But I can imagine a cyberpunk future where tumbleweed is robotic

@420mralucard

3 жыл бұрын

@@FirstNameLastName-rh6zc No because the pieces are touching each other with both tension and compression on them.

@godricktheminecrafted3113

3 жыл бұрын

This is going to be used in Wild West plays in a robot post apocalyptic utopia

@tumblevveed3586

3 жыл бұрын

Just your average Guy called Christopher I think they are already preparing for it. You should see the mountains of tumbleweeds blowing around right now here in the Oklahoma Panhandle.

This is one of those videos I almost clicked on for a couple weeks and then finally watched. Glad I did. Not an optical illusion. The cables actually hold the structure together. Cool.

@conxues500

3 жыл бұрын

Yep

@thejagtimes

2 жыл бұрын

Yep

@Joanbueller007

2 жыл бұрын

Yep

@want-diversecontent3887

2 жыл бұрын

Uep

@pochakajeoi8943

2 жыл бұрын

Yep

I immediately imagined a scifi city built atop a scaled up version of this, but it would seem a bit risky as the whole structure will collapse if the central cable snaps. I supose there could be more than one center cable for redundancy and I would prably fit it with six cables along the circumference.

@ItsAsparageese

7 ай бұрын

This is a super cool concept! Makes sense for a sort of settlement on a planet surface with frequent earthquakes or something

This was very well done and educational thanks man.

The way I saw tensegrity explained (that’s an entirely different explanation from Steve’s) that really made it “click” for me is that the top structure is hanging from the bottom one, and the wires around the outside stabilize it. Once I learned that things just snapped into place for me and I feel like I can understand it.

@crackedemerald4930

3 жыл бұрын

Yea it's kinda cheeky when you realise that.

@Nurr0

3 жыл бұрын

That... Actually makes so much sense. Thanks!

@Anankin12

3 жыл бұрын

Wasn't it obvious? It's the first thing I thought when I saw the thumbnail. Asking because different people notice different things

@oofusmcdoofus

3 жыл бұрын

@@Anankin12 it was obvious for me but things are only obvious once you realize them

@luvlasagna

3 жыл бұрын

Ooohh holy shit it finally clicked for me. Thank you!

Me: *knows how tensegrity works* Steve: *makes a video explaining tensegrity* Also me: *watches the video anyway because it's Steve*

@lokikuro4236

3 жыл бұрын

Also me : see's a "ball" with tensegrity applied to and has my mind blown.

@steampunknord

3 жыл бұрын

Same, but I still learnt the name of the tensegrity bridge in the city I live in. That and that it's tensegrity structure. I thought it just had a fancy design.

@adrianderroni4043

3 жыл бұрын

You are in tensegrity with this Channel!

@SegularRpork

3 жыл бұрын

I watched because I know Steve goes into detail, I can understand it betterz instead of a basic visual and physical understanding.

@flaviusclaudius7510

3 жыл бұрын

Tensegrity seems really obvious in how it works, but it's reassuring to watch and make sure I haven't missed something

1st time watching your videos... thanks would be an understatement, im honored to get that wisdom knowledge and understanding all in one video.

I love this guy, he always looks like he's just getting over a cold. Much love, thanks!

I always thought of it as the center cable holds the upper plate up, while the other three stabilise it.

@unnaturallynatural8885

3 жыл бұрын

technically, you're correct!

@evilpimp4371

3 жыл бұрын

Isn't that how it works? Center cable holds it up, the rest stabilize it and keep it from falling over.

@wackyanimations3326

3 жыл бұрын

Thats what i thought..

@Kevin-jb2pv

3 жыл бұрын

Bucky's hanging pucky is a bit fucky wucky

@deskflop3365

3 жыл бұрын

Me too!

I've seen quite a few examples of this recently but no-one ever mentions wire spoked wheels, literally the original example. For years as a child I thought they were made of a special material that could hold my weight until a teacher said it is the ones at the top stopping you fall, not the ones on the bottom holding you up.

@wolf1066

Жыл бұрын

And the ones at the sides are stopping the thin rim from just collapsing into a buckled oblong when you put stress on it. They force the rim to remain circular and they centre it on the hub so has sideways rigidity. It's a brilliant piece of engineering, really.

@factChecker01

11 ай бұрын

Good point!

Great explanation! Thank you!

That was absolutely helpful thank you. I was blowing my mind until I saw this.

The part about tensegrity in nature reminds me of something from "Structures: Or, Why Things Don't Fall Down" by J.E. Gordon. He said trees are under compression on the inside and tension on the outside. I thought that was neat.

@NemesisRider

3 жыл бұрын

Gordon writes some good books! His “New Science of Materials” book makes a quite tricky field (to me at least) feel relatively accessible too.

@BR0JASON

3 жыл бұрын

I’m hoping to read that one soon.

4:31 That is a very old saying indeed

@SteveMould

3 жыл бұрын

Wisdom of the ancients

@benjaminmiller3620

3 жыл бұрын

"... non-co-linear points..." to be pedantic.

@SteveMould

3 жыл бұрын

@@benjaminmiller3620 that's the kind of pedantry I like

@Kokurorokuko

3 жыл бұрын

@@benjaminmiller3620 points can't be collinear. Lines and vectors can... To be pedantic

@1.4142

3 жыл бұрын

@@Kokurorokuko Three points on the same line can be.

I love these too much. When i forgot the name for them i was so sad but now i know again!!!

Explain as much as you want, thats magic

"That's my secret, cap. I'm always stressed."

Great vid - thanks for sharing!

Every time yt suggests one of your vids i press play. Hats off 2 u sir! 🥰

Have you guys noticed how strange the URL of this video is? "0onncd0_0-o" It even has an emoji "surprised" face in it.

@lethaldream50

3 жыл бұрын

i didn't notice it u_u

@Bentroen_

3 жыл бұрын

Wow 0_0

@omaro_o7151

3 жыл бұрын

I have it in my name

@veronicaoviedo711

3 жыл бұрын

And 0-o

@Wyrmington

3 жыл бұрын

Oh my uwu

Website: Stirling engines *Sells table*

@nobodynemoq

3 жыл бұрын

Steve makes a video TABLES SOLD OUT

I've never paused a video to consider if three different rubber bands were in compression or in tension before. And I loved it!!

I made the rod & string tensegrity model many years ago. Afterwards, I discovered that many biological cells use the same principal to enable them to expand or contract their outer membrane to accommodate more or less liquid inside them. Fascinating video Thank you.

Funny that this same lego model from JK Extras was recommended to me from youtube about an hour ago. KZread must have been using your private video in it's algo deciding what I might want to see...

@harry.tallbelt6707

3 жыл бұрын

I got it recommended a few days ago, and after seeing this video popping up in my sub box, my brain went on a bit of a rollercoaster, thinking about how KZread algorithm plants ideas in our brains. Like, on the first glance it's terrifying. But then, the algorithm doesn't try to show you some stuff it wants (well, probably), it just shows people videos that similar people enjoyed watching. But then you take this idea from the context of a bunch of geeky guys and apply it to some bunch of fasci guys, and it gets scary again. But maybe the algorithm does correct for that? But then it /does/ show people what /it/ wants sometimes. I'm mostly typing it because it was curious to think about, I'm not a weird conspiracy theory person. Then again, those people are in a different KZread bubble and wouldn't find this video that easily - oh, shi..

@gracefool

3 жыл бұрын

@@harry.tallbelt6707 yes, the way social media works absolutely does encourage people to become gradually more extreme over time. The phenomenon is called a "filter bubble" - it's a bias that happens naturally, but social media makes it much worse, unless you make an effort to sometimes watch / include in your newsfeed material or people you disagree with.

@ABCD-rn6tk

3 жыл бұрын

Lol same here

It really took me a while to realise the middle string is pulling the top part up. It is so confusing xD

@CamoShirt

2 жыл бұрын

its not pulling it up its holding the weight and the other 3 wires are basically guy-wires to keep it from falling over like a tentpole with 3 guy-wires

@borasumer

2 жыл бұрын

Obviously you need more time then a while. The middle string not pulling anything up. It hold the weight of the top disk and the arm attached to it. The rest 3 wires are just for the horizontal integrity.

@telectronix1368

2 жыл бұрын

holding rather than pulling

@MollyHJohns

2 жыл бұрын

This makes me think of the self standing balancing bird toy, somehow.

@despinoladasilva

2 жыл бұрын

Have you understood it yet? Lol... still not until today? Lol...

It is hanging from the lower single chain, the two longer chains are preventing the upper arm from rotating around the pivot points of the lower chain. Which it otherwise would because its C of G is to the right of the lower short chain.

Your comment about how the body's musculature has a similar principle is actually one of the first basic lessons we learn....in Art. This is because to make a lifedrawing life-like, it must have it's shapes and forms be recognizably "real", which in most cases is mechanically functional. Our human brains are wired specifically to find these correct mechanics so the first step for any artist learning life drawing is to understand that the flesh is not a "wrapper" for the bone any more than the bone is "your core/pit/seed". The bones move by the muscles contracting, and the muscles can only contract when it's properly latched onto the bone. The two working together is how both of them achieve movement. The most important bit is to understand your arm isn't actually moving on a ball joint at the shoulder, but rather translating (as in, sliding) around in such a way that our brains perceive it as rotating while it dynamically "adjusts the tensions" of your individual muscle tendons.

Steve, you inspired me to create my own tensegrity model in my hobby machine shop. I used guitar strings and guitar string tuners to adjust tension on the three corners. The outside strings were .036" guitar strings and the center was .046". The heavier center string makes a higher pitch than the thinner outside strings when you "pluck" them. Opposite of what they would do on a guitar. That supports the assumption that each outside string carries 1/3 of the load of the center (ignoring the weight of the top half of the structure). My model turned out great and gets many comments. Keep the videos coming , l always look forward to your new releases.

@kerosan138

2 жыл бұрын

Whoa! That's really cool! Good job man!

5:10 Come on, come on, get down with the stiffness! Madness has now come over me.

Became very obvious as soon as you showed the 2D version, thank you, great video.

i made one of these with lego and string, it worked really well, suprisingly easy to make too.

We own that exact baby toy. I love playing with that thing. Oh, and our Daughter does too I guess.

@songofshadow5043

3 жыл бұрын

I love baby toys.

@TheJanvicgwaps

3 жыл бұрын

Haha

@polishxaviour4162

3 жыл бұрын

That sounds adorable

@katiekawaii

3 жыл бұрын

😁

"By changing the length of the cables in tension, you can actually move the structure around robotically" *Structure rolls down the hill*

I remember when I first saw these I was intrigued. The way I always understood it is the centre cable is folding the weight and the other wires are like anchor points keeping it stable.

3:53 Or use two magnets on each for keeping them together.

I'm a structural engineer. This is my work. I still watched because it's Steve.

@armadillito

3 жыл бұрын

Sometimes it helps to hear a good explanation of your expert subject written for the ley person. And it's Steve.

Why do I feel the need to make a coffee table using this now

@autohmae

3 жыл бұрын

I was thinking dining table

@jasonatkins6111

3 жыл бұрын

@@autohmae Neither of them will ever get made.

@autohmae

3 жыл бұрын

@@jasonatkins6111 Lots of people already did.

Thank you. Well done.

I finally understood it, thanks!

If they do not call that robot a "rolly pulley" I am going to have a rage induced stroke.

Finally! A random youtube recommendation that I learned something from. Thank you for the video it was quite informative and answers the questions i'd wondered about how these structures/designs worked.

I just love these videos. Teaching novice how fun engineering is without Statics, Dynamics, Calculus, Diff Eq, Strengths of Materials, Materials Science, years of learning and sleepless nights for 4-5 years of study. Good times!!!!

Never heard of tensegrity until this video. Fascinating!

Now i want a full sized table like this

This looks so fake! Even i understand how it works, my brain still says, no way this is real and functional.

@maximusy8311

3 жыл бұрын

It is real, try to make a Lego one, it's not magic, *its gravity*

@Mike__B

3 жыл бұрын

@@maximusy8311 *electromagnetism* actually, as that's all tension and compression is atoms and molecules trying to pull apart or squeeze closer.

@maximusy8311

3 жыл бұрын

@@Mike__B well yeah makes more sense..

@trumtrum5136

3 жыл бұрын

@@maximusy8311 He said he understands how it works, but his mind still denies it

@annaclarafenyo8185

3 жыл бұрын

@@Mike__B electromagnetism and electron exclusion forces.

People still can't grasp this, imagine when you tell them that bike's spokes are also in tension and not compression

@iamfuckingyourwaifuandther2743

3 жыл бұрын

Rip brain

@thechoripankiller

3 жыл бұрын

​@@iamfuckingyourwaifuandther2743 _" When a bicycle wheel is built, the spokes all start out loose, then they are gradually made tighter and tighter. When complete, every spoke pulls the hub towards the rim, but all the spokes are in balance, so the hub and the rim stay put (if you screw this process up, the rim usually folds over to one side, possibly ruining it). This process is occasionally referred to as pre-tensioning, because you are putting tension in the spokes, even before they wheel has to support any load._ _It's hard to visualize (I suggest looking at a bicycle wheel), but every spoke is pulling on the hub simoultaneously, in all directions. The tension in every spoke is (very close to) identical. What's interesting is what happens to the wheel when a load is applied (someone gets on the bike). If you measure the tension in all the spokes, only those spokes in the bottom of the wheel change tension significantly - the tension decreases. In other words, the bottom spokes become more loose, all the other spokes remain unchanged. "_

@Nathan-kw2hs

3 жыл бұрын

Imagine spokes being in compression, they would all buckle instantly

@schvanger

3 жыл бұрын

false and stupid. the rim of the bicycle is compressed takes the tensile loading of the spokes. Only tension is not possible. Tension and compression must balance out. if they aren't, the system needs to expand the boundaries that you're placing on it.

@Greasyspleen

3 жыл бұрын

@@schvanger I believe there's no compression. Maybe Steve could build a bicycle wheel out of string to settle the argument.

This really is the absolute best of youtube.

I remember a UK TV show from my youth (somewhere between the 60's and the 80's!) that showed objects made from sticks and rubber bands that were something like these tensegrity structures - the interesting thing about them was that they had two stable states and could be made to flip from one to another by manipulating them by hand. Many years later here in the US I see insects in my garden every day of the type known as odonates. I've watched them closely and when sitting idle I've noticed that their wings snap from one position to another rather than smoothly transitioning in the way that a bird might move its wings. (Actually I think there may be three or four stable wing positions rather than two but that's a detail for later). My theory is that they use muscles (or some equivalent) almost digitally to cycle their wings through the repetitive pattern that allows them to fly, flipping through a small number of stable states where the stability comes from a tensegrity structure or something like it. I'm not a biologist and I don't know if this is a known mechanism or not but I've never come across it before. It would be interesting to see if a electrical/mechanical mechanism could be made to replicate this behaviour, say with nitinol wire, to constrict one 'muscle' while relaxing another. (P.S. if anyone here can remember the British TV show that first showed these rubber-band and lollypop stick structures I'd appreciate a pointer. I don't *think* it was the ubiquitous "Tomorrow's World" but it was probably something similar, and likely aimed at kids.)

I had never seen tensegrity structures before and I thank you for bringing it to my attention. That being said, although I understand these structures on an intellectual level, just looking at them makes me instinctually angry because it feels like someone found a loophole in physics.

@justinlavine9209

2 жыл бұрын

Lol. I'm just jealous of the people getting paid to make interesting looking bric-a-brac while I can barely get a job.

it's 3am here in my country and youtube recommended something THAT I REALLY CURIOUS ABOUT. amazin

In a tensegrity structure, the tension elements (typically cables or wires) are in a state of continuous tension, while the compression elements (typically struts or rods) are in a state of continuous compression. The tension elements pull the compression elements towards each other, while the compression elements push back against the tension elements, creating a balance of forces that results in a stable structure

I think that was both neat and informative.