Fall 2014 - Spaghetti Bridge Final Testing

[@oreosauce5776]

1987: Flying cars in the future 2014: Spaghetti Bridges

[@israelgroth1948]

Kkkkkk

[@Mernom]

Spaghetti bridges that can wistand many times their own weight before collapsing.

[@Alex_Eicher]

2018: Still fascinating about the inventions and watching this 4 years later...

[@ammariessa7424]

its not about Spaghetti its about engineering and physics if u can make something that can handle a lot of wight with something thin and izi to break its amazing, imagine if we used that instruction the winner did with iron thin bar how much of material we could save !!. same as building house instead paying a lot of money and u can manipulate the instruction to buy fewer material and hold as strong as the old design with less money u pay ! .

[@sveentus]

Да вообще копец

[@crustyou]

I think it was unfair @ 5:13 because he dropped it.

[@tommythenice6799]

100% dick move

[@McLoviniam]

You all build that one lmoa

[@cherrybomb7524]

Chris Ebreo I totally agree with you

[@westernstates6769]

I TRIGGERED!! HE IS SON OF A BITCH AAAHĞĞĞ

[@EdwardVelez]

Chris Ebreo life is unfair dude. Do you think cars/trains go bridges slowly? It was a pour design that would have a pour lifespan for a bridge.

[@mikemccollins5407]

Doesn't seem very regulated and or fair. The way he dropped the weights

[@TheKrouton]

I don't think they were competing at that point.

[@filmopfil]

and point where max load landing also different it makes diff results and conditions

[@trevethan82319841]

What's the point of over thinking about it there just doing to pass the class

[@ygk1994]

"hey where you at?" "in a room full of spaghetti bridges"

[@tyroniusg1601]

Uhhh. Did you say spaghetti?

[@soupricemf1260]

Somebody toucha my spaghett

[@jenjerx]

Yea, wrong room!

[@lutti9437]

Spaghetti is a long, thin, solid, cylindrical pasta. Spaghettoni is a thicker form of spaghetti, while capellini is a very thin spaghetti.

[@BAZZAROU812]

Is there any sauce.. Or bread sticks..

[@rubeushagrid4131]

Watch his biasness at 09:23, he just dropped the weights which is not the correct way to do it.

[@moonmanvic]

Harsh Pandey I noticed that too.

[@PabloDeLafuria]

yeah they should use a bucket and fill it slowly with water

[@renlacle]

he's an a$$ he did it at 5:14 too

[@joeboxerrr]

that thing was gonna fall anyways ahahah

[@esengbirador2414]

5:13

[@ramejpetmalu9150]

who else get mad of what he had done @ 5:13 😠

[@isaacvinas6676]

Me he dropped the weight on purpose😡😡😠😠

[@DillonK13]

probably because that was the winning bridge and it was taking all the weight they had. similar to the last bridge the video cuts out on. they start to push on the weights and throw their hands up because they dont know what to do.

[@jakefriesenjake]

He thought that the chain would snag on top of the other weight. It slipped. This is totally wrong. I would ever so gently release the weight. Some designs were so horrible. Lol

[@andreh1496]

Ele deixou cair o peso intencionalmente pra quebrar a estrutura

[@brandonh.441]

😠😠😠😠😠😡😡😡😡😡😡😡😠😠😠😠😠😠😠😠😡😡😡😡😡😡😡😠😠😠😠TRIGERED

[@ajitogey7046]

5:13 🤔🤔🤔 6:58 😒😒😒

[@t.k.8815]

And he not only throws it but he lets it swing.

[@buenavida5407]

Jajajajajajaja es cierto, me agrada este tipo

[@stevenzaur]

Maybe the last weight should be throw it like That

[@NPCSN]

Welcome to engineering school... here are some things you should know: 1) we don't understand the transition of potential into kinetic energy and the concept of velocity as it relates to force. Ie: 5:13 2) we haven't figured out how torsional stress affects a structure because we stack weights on different sides. 3) we also haven't figured out a better way to put weights on other than closing each individual chain by hand. 4) who ever designed this competition should have come up with better testing methods. Just saying.

[@hwajeongkid25]

The dead load (weights) should be placed on the bridge platform to be distributed on all members and the structure might carry more weight. Placing it underneath will only stress a particular member, break it and may not reflect the actual load the truss can actually carry.

[@garylosa435]

This is not how an engineer would put weight in this test/competition. Carelessly dropping weight would result in different kN.

[@medvidekmisa]

totally...utterly stupid...university of what is this?

[@zikari0]

toda la razón.

[@brainmind4070]

They should really let the teams put on their own weights. That way they have incentive to be gentle.

[@docpossum2460]

This isn't a test or a competition, they're just seeing if they can destroy bridges

[@Spherehead123]

@Doc Possum Read the description

[@carlmanis879]

what about at 5:13 he drop the weight

[@georgesadler7830]

DR. Stewart, I liked to thank all your Mechanical/Civil Engineering students for an awesome spaghetti bridge design as a final class project. These designs should help students understand real world structures. Professor Stewart, I watched and analyzed all 66 lectures. All these lectures are amazing. Statics and Dynamics used to be part of the Electrical Engineering undergraduate degree at the University of Maryland College Park. I took both classes at the old Catonsville Community College in Catonsville, MD in 1986. I review these two classes because I will be taking the Fundamental of Engineering Exam very soon.

[@fryncyaryorvjink2140]

So are these glued together or do you put a drop of boiling water on a joint?

[@ausintune9014]

glued. or tied up

[@TheKrouton]

lol I don't think you can weld pasta together with boiling water.

[@TheTwitterpatedlove]

Pasta Welding. Win.

[@fryncyaryorvjink2140]

@@TheKrouton hey if you don't stir it they do weld into a hard clump of nastiness

[@chrismoody1342]

Ausintune m

[@YVO007]

It's the specific load baring point that gives in which means that it is more likely the materials not the design structure.

[@mausseramg2607]

Loco... Nose que estoy haciendo con mi vida. Ahora debería estar estudiando o haciendo algo productivo pero estoy dispuesto terminar el vídeo.

[@anana2352]

X2 xd

[@Pankes.]

X10

[@elmerhuayhua824]

X100

[@dhariusryan3847]

Speak English

[@Yeoshua]

Debes Mirar Más Profundo al vídeo, Hay Ciencia detrás de esto.

[@gustavoencarnacao544]

He can't load the bridges with assimetric loads. When he puts the chains in one side of the first chain.

[@AbdulazizAlmawash]

Why triangles on the bridge..? Is it to kind of distribute the pressure (energy) equally across its parts so if we were to measure the pressure on each half from center it would be equal?

[@wishiniwasfishin8164]

When I was in a bridge competition we had a plate that was connected to a pail that we would gradually fill with sand. It worked quite well and distributed the weight equally. The way they are doing it in this video has too much pull in a small area. And the weight increments at some point are too much to add .

[@pangeia1010]

5:16 ele solta e dá um tranco ...não é justo...

[@israelgroth1948]

Vdd.

[@DITOGAMERBR]

Tem outro que ele também fez isso e tem um que ele toma o maior cuidado, velho to puto aqui, mas é isso..

[@hasmeunaanimacioncaldera1907]

sopa de macaco uma delicia kkkkkk

[@vish17KKKK]

Injusto msm

[@drkjk]

Is point loading really the best way to determine overall strength of the design?

[@brainmind4070]

drkjk If it's specified in the rules of the competition. A structural solution is designed around a load or loads and constraints. They're not trying to design actual bridges, just carry the most load held at the center point between a span of a certain distance. The bridge should be designed with this load case in mind. If the competition allowed the load to be held anywhere on the span, all the teams would apply the loads closest to the table, which would defeat the point of a bridge-building competition. A point or line load at the center is the most efficient test of a bridge design.

[@patrickgoldberg7915]

Bridge design

[@edenwilliams9884]

although this method isnt the best, it is about centered statics. they would see difference results it the weight was hung different and this would also cause a change in design as well.

[@terrymatt8693]

What you shoud have is a marked bottle hanging, then start to fill with water to get an even weight (bucket to catch the mess)

[@dlvr659]

These competitions at school were cool. I remember we used to do egg drops for vehicle safety and popsicle stick bridges for engineering.

[@d2cuadrados]

Oh don't mind me, I'm just here to steal their designs so I can finish Bridge constructor Portal. All your ideas belong to me now >:D

[@terenfro1975]

I started doing this back in 2010 with my classes. 70% of the grade is an engineering report on the design. 30% is based on a weight to load function. The weight is held on the road bed and not through a U bolt so it is more like a real bridge. The idea though is they can make an application and write a paper that describes. They also have to have a draft of the bridge in the CAD that we use.

[@okim8807]

9:36 I thought this bridge was quite strong, but the right pillar bent at 10:11 . Half of the whole weight would be applied to this pillar.

[@MURRYCHOOCK]

They did the same with that Genoa bridge that collapsed? It depends on what type of spaghetti you build it

[@jalopyrips8081]

Where was the control for this test ... ie amount, type of pasta or glue type or size limit

[@ventiladordesuco]

The Flying Spaghetti Monster is very pleased. Science + spaghetti + reggae, very well done guys & gals.

[@DaddyRhyanvlog]

whats the rule on building one? type of glue? coz thats what make it stronger.

[@noesnoes3969]

just a reminder that people are complaining that this dude unfairly breaking *spaghetti* bridges

[@vintyprod]

justified imo a lot of calculation goes into optimizing a truss and its a competition after all lol

[@CheloA]

Dónde es esa competencia? Muy extrañas las recomendaciones de KZbin..

[@IronBridge1781]

“Collapse of the Genoa bridge, Italy” - 2018

[@emiliofedez4960]

balilla must pay it

[@darioildiario3001]

Not funny, asshole... people died.

[@TommyTommy]

Idiot

[@netorare7840]

Lol

[@B4IRUTUARU16]

HAHAHA

[@motobazuka2535]

I've heard this music elsewhere​. What is the song?

[@ryanm.191]

I remember back in year 10 when I did this but using balsa, I didn’t trust anyone to do anything good so I was my own team. The bridge I built was so strong that it supported the weight of my teacher and still didn’t break

[@robertfisher8871]

You would think they would put the weight on the bridge deck like the actual weight vehicles place on the bridge

[@sambrewer2306]

This method doesn't distribute the weight evenly. All weight is at the very middle. This would cause me to make a model weak on 25% and 75% across bridge and concentrate everything on 50%(middle) across the bridge

[@brainmind4070]

A point load at the center is the worst case, which means it's the best test case. It doesn't test the deck, but it tests the overall superstucture most efficiently.

[@brainmind4070]

Sam Brewer That's kind of how you should approach a bridge design anyway. A load near the table is much easier for a bridge to take than a load at the center (maximum bending moment).

[@sambrewer2306]

Thinking about it u are correct.(really) I was wondering if there was a way to sacrifice the 2 side 2/5s of bridge and concentrate all weight on the middle. (Assuming there is a weight restriction.)making the 2 outer halves weaker than middle. Just to win the competition. 😊

[@brainmind4070]

Sam Brewer Not quite sure I understand exactly what you're saying, but the winning designs use more material in the center of the bridge. You can see how they are taller toward the center. This is a good approach to design because the taller cross-section at the middle resists bending better, where in the middle there is more of it. The problem with a tall cross-section, though, is stability, which is why the best design had a lot of little cross-members. One thing that bridge also did quite well was not using too much material on top of the table. You really only want just enough length so that a perturbation when weights are being applied doesn't unseat the bridge from the edge of the table. Too much material on top of the table is completely useless and material that can be used elsewhere to greater effect.

[@Hololand]

So what do you do?

[@melanienygaard273]

What is the music at the beginning of the video?

[@daviddiehl197]

There is a design that nobody uses, they still use the box method. Here is a hint why do trusses use triangles?

[@mckeinley1]

A hard drop at 5:12? How is that fair?

[@cyrusIIIII]

Where can I find the rules and manuals for this type of competition?

[@CalvinStewartPhD]

Several universities publish rules for Spaghetti Bridge competitions. Search google. Make sure to ask permission before you use them.

[@brainmind4070]

Or just make up your own. 1 box of x-brand regular/thin/angel hair/etc... spaghetti or equivalent net weight (in case of broken noodles), 1 bottle of glue (or reel of fishing line) of certain size and type, span distance, load application location, method, and increments, time bridge must hold between weight addition. I would try to find a method for applying weights better than they did here. With weights hanging off the sides like that, it has the potential to torque the structure in unpredictable ways or create shock/acceleration loads if weights shift. Also, avoiding shock when applying weights would be necessary. Having teams apply their own weights and having an official (ideally multiple) with a stopwatch (that they press once the team member has ceased touching the structure) can help mitigate claims of unfairness.

[@FrancisR420]

NERD!

[@photon2724]

is there no limit to the amount of material you can use?? cos i see a unfair use of the materials

[@diegoeleazar9154]

As long as they weight the same it is fine.

[@danielinzunza2183]

What kind of stick fixer is used?

[@imayhaveadhd]

Since the beginning of this year, I've probably watched at least one recommended video a day that has me questioning wtf I did to have that video suggested. This being one of them.

[@UhDuhMass]

The energy is intense. Can barely hear myself think

[@epic_irony]

Why am i watching this

[@CheloA]

Digo lo mismo...

[@rogerdodger8415]

You are hungry for spaghetti dinner.

[@thomasthetankengine4443]

I'm asking myself the same question 😂😂

[@rogerdodger8415]

@@thomasthetankengine4443 You both should have spaghetti dinner.

[@thomasthetankengine4443]

@@rogerdodger8415 nah, I am not a big fan of spaghetti, it's to much work to eat 😂😂

[@gkcaybike]

What is his brand of watch?

[@jisoo7856]

อุปกรณ์ที่ใช้ทำมาจากอะไรครับ

[@xn5882]

意大利面做的么？我觉得应该使用铅丝来模拟桥的自重和挠度。

[@zzzubmno2755]

id love to try this. id like to see all the rules and requirements. id like to try it with different techniques, for example, cooked spaghetti to increase the strength of the material by removing some of the natural weaknesses in the strands. id like to know exactly what type of glue to use and how much glue you can use.

[@Knuckles2761]

I think they should use electric magnet instead of weight. Because you can set force at any value and know exactly when your bridge will fall. And it is delete any "drop" unfairness like in 5:13

[@danielmoreno4089]

Cual es el reto que material ocuparon alguien me puede decir?

[@payupich]

Try and put those weights on a little more gentle bud

[@ethanbates7734]

Everyone’s talking about 5:13 but let’s discuss what happened at 9:24

[@wyattsmith912]

Why are some overlapping table by 2-4 inches while others are hardly even on the table. That’s inconsistent to say the least

[@user-sy1we3od1k]

strange that they apply the load on the bottom of the bridge

[@CalvinStewartPhD]

Easiest way to do it.

[@lilbibby3310]

Hm did the weights weigh

[@gawys28]

8:15 the laugh

[@boost_is_happiness6011]

how heavy are the weights??

[@bubcat54]

Wouldn't it be easier to hang a bucket and pour sand into it to eliminate the risk of retardo hanging weights?

[@CalvinStewartPhD]

We switched to sand in the following semesters.

[@mikuohatsune2040]

Como que en algunas partes se ve que estuvo arreglado!😑😐

[@NatashaMoss]

how heavy is each weight?

[@filmopfil]

contendors are cintists , but weight guy isnt at all near cince

[@dms2331]

I once entered a competition for popsicle bridges and got disqualified because "We can identify the type of glue you used" which I used Elmers white glue, the only one you were allowed to use

[@PurpleL4bel]

isnt,weights,suppose,to,be,distributed,equally,along,the,bridge,not,just,one,point?

[@антонмагарн]

Курсовая по строительству мостов интересные соревнования

[@set-set]

антон магарн ну они же из макарон сделаны.

[@руматаэсторский-т5ц]

Конструкция изначально просчитана на приложение усилия по центру конструкции . В реальности все сложнее . Попробуйте сместить груз к краю например . Или в бок от оси фермы .

[@Knightonagreyhorse]

Looks fun but as others have pointed out; that was an incredibly clumsy way to increase the weight. The best way would be to make a bucket shaped like a shelf or something like that where the weights are carefully placed on top of eachother.

[@alimousajr6246]

wow amazing but how could it sustain all this weight does it from trusses???? and does it hang from specific point ! centroid maybe !? i need answer

[@CalvinStewartPhD]

ENGINEERING!

[@hunbug]

Everyone is talking about the one at 5:13, meanwhile I can't help but think about the 1:40, which had the weights hang on it through a non supporting element.

[@angrypepecancer5205]

What materials were used and brand

[@sambrewer2306]

Brain mind u know what u are talking about. I did really food in school making a tower w balsa wood and glue that went around a pole and had to be a certain height and weight. Then put weights on verticle board until crushed. I used triangles and a porta glue and sanded clue to lose the wiet but ensured good connections. I would be interested in trying a bridge builder app same as this. Would make great app. If calculations were correct.

[@sambrewer2306]

Build a bridge app.

[@ChristopherStClair-mw1gq]

Awesome we did this in 5th grade but with popsicle sticks and wood glue proud to say our groups bridge held over 150lb before we ran out of weights and had to start using text books. Never broke we estimated it held a little over 170 lbs.

[@BornAgain89]

Finally youtube got a legitimate interesting recommendation for me... 😀 i want to make one!

[@CalvinStewartPhD]

You should. It is easy. Spaghetti and hot glue are all you need.

[@rodrigomartinelli741]

Wich are the requirements?

[@burgerboi5370]

Im going to sleep soon 22:00 3:00 watching a 2014 video about spaghetti bridges.

[@YorktownUSA]

I did something like this in school once, with wood and common string, but same basic principle.

[@matrixtetiene9577]

5:13 >:( They should just hang a bucket on the bridge and fill it slowly with water, it would be a less abrupt way of putting weight on the bridge.

[@MrNazzrain]

i think they should test the weight moving in the bridge..seeing this kind weight test makes me uneasy

[@peteza7483]

That was not an accurate test when he dropped that weight at 5:14 .... force like that has a lot more weight than you would think, however you cant accurately measure force into a specific amount of weight thats why we use newtons for a measurement like that

[@軍銜制]

Это из макарон?

[@UniMindPerson]

What's requeirments to bridge?

[@suchiralaknath7576]

Thank you for these videos.These are so helpful to students like us.Thank you so much!

[@memeconnect4489]

Song name please ?

[@Live.Vibe.Lasers]

next time use water for weight. pump water into a bucket until failure. a bin to catch the bucket/water. eliminates inconsistent loading, adds increments.

[@0623kaboom]

ok Being from Ottawa where the original was done for Ottawa University engineering students .. using balsa wood string and pins ... NO GLUE ... what did they join the spaghetti with .. glue ? .. as it cannot be string or pins you are not testing their ability to build a bridge to withstand a load but find a chemical that will soak the spaghetti and change it's properties to withstand a load . BAD FORM

[@0623kaboom]

btw it is better to use a strain gauge with a constant force pull ... which removes the inability to load weight in a consistent manner and also loads the bridge evenly unlike by hand which loads in an uneven manner ... any data gathered from these stats is really useless unless the method of joining the spaghetti together is also included ... the engineering course went to an automated constant load that test's the structure to failure and records at what weight it did break ... and the only allowed products are balsa wood, basic white 4 strand string ... and sewing pins ofmaximum 2inch length with no heads left on ... and a common attachment point of an o ring or d shaped ring in the middle on the bottom of the bridge

[@mayzo7439]

At time 5:06 he put that weight on there and then let it go and it dropped down if he was gently put it on that bridge would have lasted longer

[@alancantu2557]

Music?

[@thepunchline7748]

Well we now know what to make out bridges from

[@brianemmettmartin]

Was the music really necessary?

[@davr1]

How tf did i get from "how to use premiere pro" to spaghetti bridges

[@Lewis_parry]

The way in which he is conducts the tests are not consistent. You have him dropping weights and sometimes he carefully places them. Also, the surface area on which the bridges sit on the table vary from bridge to bridge. It should have a set parameter on how far the bridge sits on the table on each side.

[@archalist]

My bridge wasn’t in the video, but i had the professor before. For the people saying that the video was unfair, the project was to build a bridge that could withstand at least one weight. Everything else above one weight was just for fun. Of course the winner got to gloat but it wasn’t a big deal

[@CalvinStewartPhD]

Hello Jared. I hope you had fun in the class.

[@tristanlorenz2883]

nice what are the rules

[@kamberaung9443]

Friend:So what's the reason you learn statics? Me:To build a spaghetti bridge

[@ianmoran3289]

Y como afecta esto a bofe?

[@saulherrera7358]

Good job! Who win!?

[@gnoux23]

2.5 lbf or 0,0111206 kN ?

[@tactical1013]

Prof: Now calculate by hand the stress of each members at the time of failure.

[@CalvinStewartPhD]

Yes indeed.

[@skatedd2451]

I should be putting the weights on top of the bridge not underneath it.....

[@wifighostcruiser9665]

Maybe I'm missing something but what the hell does Structural Engineering have to do with a statistics course? I suppose these are bridges made out of spaghetti for little meatball cars?