Reminds me so much of the awesome game Bridge builder. What i love about the spaghetti models is that you also can see the stressed "strings" while they are bending and winding. Nice
Interesting that most seemed to fail by compression in the top members, indicating that they had put too much material into the bottom members that were in compression, and not enough into stiffening the top.
@@anotherfreediver3639 Hmm. Gotta wonder if there's a tensegrity design for a bridge. Eliminating torsional stress on the compression members ought to help quite a bit.
One reason the pasta might be failing so much under compression is that it’s easy to flex being so thin, so it’s far easier for it to buckle under compressive loads.
Main reason for many small member bridge was.... It got too many connection.... And if connections is weak/ fail than whole system tends to fail... But if u design with less number of join and focus on member itself that is member under going tension compression as we as flexural ur structure is gonna sustain... That is what happen with 4th bridge... It ultimately failed through member rather than joint.... So while designing anything joint shouldn't fail before member or else whole system is gonna fail....
A more accurate measure of load bearing Is to add several lower hooks across the bridge to disperse the bucket load Real application would never see all weight just in the center Great experience Using trusses over full beams can save resources
The 3th one resist a lot but he lose points on the weight of his bridge due to excessif spaghetti. The goal is to use less materials but to have good resistance by the structure
Thank you for sharing this video. We teach a class of PreK students and have been studying bridges. The students were excited to see shapes they knew in the bridges' structures. They even began to notice when portions of the bridges were beginning to buckle.
A fun and age appropriate activity for your pre-K's (any age, actually) would be to use popsicle sticks and hot glue to build first a square, then a cross-braced square and let them feel the difference in ability to flex the structures out-of square. Then build a box-shape structure without bracing, and also one with bracing. Again, let them feel how easy it is to collapse the unbraced box. If they're old enough, it's fun to split them into groups and have them build a box to stand on... the highest weight capacity wins!
Студенты в классе материаловедения профессора Мариетты Скэнлон в долине Пенн Стейт Лихай строили мосты, используя спагетти и горячий клей. Чтобы проверить прочность конструкции моста, к каждому мосту был прикреплен ковш, и отмеренные количества песка были вылиты в ковш с 10-секундными интервалами. Победившая конструкция моста имела самое высокое соотношение веса моста к весу груза (вес песка).
Where everyone should have paid more attention is buckling...a drop of glue in the middle of a composite spaghetti beam would go a long way...or if you want to play dirty impregnate every beam that is made of multiple spaghetti strands with superglue...That will show them!
Did something similar in school. It's FASCINATING to see the specific failure points and then trace back to where the design or construction could be improved. For anyone interested, here's timestamps of the moment each bridge failed: First Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=Dkr139lU2RLe3JVC&t=51 Second Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=Net_DKQV0dGEyEHj&t=65 Third Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=LfTtiWblM8xIvl-F&t=132 Last Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=6HHV_Yj8_Afm81Zn&t=218 Personally, I found it most interesting that it appears to be tension pressure which wasn't (understandably) accounted for. It looks like it's a mix of imperfect construction or lack of available margin to add structural elements (or shrink others because the size of the building material is fixed).
I'm surprised every single one of them made a flat bridge, none had any arc to the "roadway". I wonder if that was a requirement or not? And nobody tried the davinci bridge :p
Grim Reaper Ha! What no upvotes on that so far? You broke my internet. And I was going to post stupid about a little garlic and olive with a shake of romano
@@Tridd666 Where this leads we know. What Mars probe crashed because they mixed up metric and imperial measurements? :) While I understand that 1 ft is just the length of ones foot and an inch is the width of a thumb.. which makes more sense than an artificial metre or centimetre ... But as soon as you start doing maths with metrics you don't miss imperial anymore :) 1 Nm = 1 J etc :) just too convenient :)
Nice, however I had a fellow student in my class who used strictly flat toothpicks and elmers glue and had a ratio of close to 800 to 1. He made my 2 to 1 ratio look bad.
I think students could have gathered much more information than simply weight to maximum load capacity ratio. What about joints quantity and dimensions of the members? Where is all the data they collected, anyway?
I felt like having a too short pants on and very thick glasses. My social abilities were less then normal and my hair was greasy. But when the last bridge collapsed I was free again. Free but tired.
This is level one, level 2: use cooked noodle :D Ok.. kidding.. but it is apparent that the bridges fail on the compression joints. Buckling is the issue... Read your Euler :)
Maybe we could increase the eulerian buckling load by using fettuccine or reginette, since they have a greater gyradius in the vertical plane (it's an I section). The problem with that is that the cross section is still too thin, and may lead to local buckling. Yes, I'm Italian.
Zo Mi he put more spegeti at the middle.. in real bridges middle part should be light... It could break in its own weight...... 4th bridge was the best...
Hello, I am a girl at the university. I am required to make a model or project a cardboard bridge that is a meter long and bears a weight of 160 kilos, and it is very important. It is my graduation project. Can you help me and I hope for a serious response. I need your help in this project, how do I start and what are the laws
What are they pouring into the bucket? Water in such a wide range?... Would of used a slimmer object (ex. a beaker or a bottle) and maybe marbles instead for precise measurements?... Edit: Right after finishing the sentence(s) above I realized that they were pouring sand in... Alright! Still controversial to me though! 11:20 PM 4/13/2019
Guess we had to pay attention if we cared for total weights of the best designs but #4 at 2:16 took 30 at 89g and a portion of 49, say 20 ... Nice efficient design and great music overlay Meanwhile...the stoners, last ones at 3:46 didn't even bother to take their hands out of their pockets
![CONCURSO SPAGHETTI BRIDGE 2019 en UAH - Concurso Puente de Espaguetis [Real Poly Bridge 😀]](http://i.ytimg.com/vi/SIqtGDYTJSA/mqdefault.jpg)
![CONCURSO SPAGHETTI BRIDGE 2019 en UAH - Concurso Puente de Espaguetis [Real Poly Bridge 😀]](/img/tr.png)
100% italian engineering
Reminds me so much of the awesome game Bridge builder. What i love about the spaghetti models is that you also can see the stressed "strings" while they are bending and winding. Nice
Interesting that most seemed to fail by compression in the top members, indicating that they had put too much material into the bottom members that were in compression, and not enough into stiffening the top.
The bottom members were in tension, not compression.
@@johncochran8497 Apologies yes ... my typo, bottom obviously in tension!
@@anotherfreediver3639 Hmm. Gotta wonder if there's a tensegrity design for a bridge. Eliminating torsional stress on the compression members ought to help quite a bit.
One reason the pasta might be failing so much under compression is that it’s easy to flex being so thin, so it’s far easier for it to buckle under compressive loads.
Main reason for many small member bridge was.... It got too many connection.... And if connections is weak/ fail than whole system tends to fail... But if u design with less number of join and focus on member itself that is member under going tension compression as we as flexural ur structure is gonna sustain... That is what happen with 4th bridge... It ultimately failed through member rather than joint.... So while designing anything joint shouldn't fail before member or else whole system is gonna fail....
A more accurate measure of load bearing
Is to add several lower hooks across the bridge to disperse the bucket load
Real application would never see all weight just in the center
Great experience
Using trusses over full beams can save resources
Fill the bucket with a tube with flow regulation from a large bucket where you can measure how much water went in!
The 3th one resist a lot but he lose points on the weight of his bridge due to excessif spaghetti. The goal is to use less materials but to have good resistance by the structure
Roi DEMON thirth
I don’t know, the 1nd and the 2rd were pretty good. I agree with you on the 3irst though
@@mumpert8091 clowning
Polybridge in Reallife.
That was cool. Why didnt I ever get to do stuff like this in HS?
Interesting how the top members buckled as the bottom bowed . Maybe if the rules , allowed make in a triangle shape looking along the bridge ?
I'm a retired Ironworker that worked on some bridges . I'm impressed
2nd last is great engineering as it uses less material in construction and carry huge load.
Thank you for sharing this video. We teach a class of PreK students and have been studying bridges. The students were excited to see shapes they knew in the bridges' structures. They even began to notice when portions of the bridges were beginning to buckle.
Happy to hear that this was useful for your students!
A fun and age appropriate activity for your pre-K's (any age, actually) would be to use popsicle sticks and hot glue to build first a square, then a cross-braced square and let them feel the difference in ability to flex the structures out-of square. Then build a box-shape structure without bracing, and also one with bracing. Again, let them feel how easy it is to collapse the unbraced box. If they're old enough, it's fun to split them into groups and have them build a box to stand on... the highest weight capacity wins!
Wish I had you as a teacher that young!
Reason of failure:
SAUCE was missing
Just sauce...
no ketchup ?
Lamb sauce
raw sauce
haha
Студенты в классе материаловедения профессора Мариетты Скэнлон в долине Пенн Стейт Лихай строили мосты, используя спагетти и горячий клей. Чтобы проверить прочность конструкции моста, к каждому мосту был прикреплен ковш, и отмеренные количества песка были вылиты в ковш с 10-секундными интервалами. Победившая конструкция моста имела самое высокое соотношение веса моста к весу груза (вес песка).
Where everyone should have paid more attention is buckling...a drop of glue in the middle of a composite spaghetti beam would go a long way...or if you want to play dirty impregnate every beam that is made of multiple spaghetti strands with superglue...That will show them!
Exactly what I thought. Also instead of superglue and hot glue used in the video I would've used resin.
They usually weigh the bridge and have to keep it below a maximum
How i wish we have like this in school it looks fun.
Did something similar in school. It's FASCINATING to see the specific failure points and then trace back to where the design or construction could be improved.
For anyone interested, here's timestamps of the moment each bridge failed:
First Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=Dkr139lU2RLe3JVC&t=51
Second Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=Net_DKQV0dGEyEHj&t=65
Third Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=LfTtiWblM8xIvl-F&t=132
Last Bridge: ua-cam.com/video/Uzm93QSB6fY/v-deo.htmlsi=6HHV_Yj8_Afm81Zn&t=218
Personally, I found it most interesting that it appears to be tension pressure which wasn't (understandably) accounted for. It looks like it's a mix of imperfect construction or lack of available margin to add structural elements (or shrink others because the size of the building material is fixed).
We did this in the 8th grade I believe with toothpicks. The weights would get pretty surprising.
Some of these kids definitely play poly bridge
I'm surprised every single one of them made a flat bridge, none had any arc to the "roadway". I wonder if that was a requirement or not? And nobody tried the davinci bridge :p
Very nice. Great efforts!!✨️✨️
This is not a good indicator of the strength of the bridge because most of the support was placed where the bucket was hanging.
I would have watched the entire video, but it's PASTA my bedtime
Grim Reaper
Ha! What no upvotes on that so far? You broke my internet.
And I was going to post stupid about a little garlic and olive with a shake of romano
Funny but what a lame joke. 😄
Muricans using Grams, now thats impressive
We use metric and us imperial pretty interchangeably
Your meme is stale and insecure
Considering America’s the leading country in STEM idk why your surprised we use such a basic measurement
Should have used some sauce n cheese that what the should have used
@@Tridd666 Where this leads we know. What Mars probe crashed because they mixed up metric and imperial measurements? :)
While I understand that 1 ft is just the length of ones foot and an inch is the width of a thumb.. which makes more sense than an artificial metre or centimetre ... But as soon as you start doing maths with metrics you don't miss imperial anymore :) 1 Nm = 1 J etc :) just too convenient :)
Awesome. How long did it take to construct the bridges?
Wait, the first two broke after 89 grams?
One strand of my grandma's spaghetti would have beaten all of these.
Bobby Silver and if you ate one strand you’d go into cardiac arrest
Next time put the weight as it is put in the bucket please
We did the same thing at my school today but with vas wood. My bridge weighed 22 grams, and held 16,101 grams.
nice
Nice, however I had a fellow student in my class who used strictly flat toothpicks and elmers glue and had a ratio of close to 800 to 1. He made my 2 to 1 ratio look bad.
I think students could have gathered much more information than simply weight to maximum load capacity ratio. What about joints quantity and dimensions of the members?
Where is all the data they collected, anyway?
wtf am i watching
Yes...
I felt like having a too short pants on and very thick glasses. My social abilities were less then normal and my hair was greasy. But when the last bridge collapsed I was free again. Free but tired.
Exactly
Молодцы ребята!!!
2:25 it's pretty much a roof truss structure
Third one so incredible
Joanne Caudell glue gun
This is level one, level 2: use cooked noodle :D
Ok.. kidding.. but it is apparent that the bridges fail on the compression joints. Buckling is the issue... Read your Euler :)
Maybe we could increase the eulerian buckling load by using fettuccine or reginette, since they have a greater gyradius in the vertical plane (it's an I section). The problem with that is that the cross section is still too thin, and may lead to local buckling.
Yes, I'm Italian.
how much weight did those took?
mamma mia mario is proud of you. at least they didn't end up in the Alfredo pasta
A disastrous spill in the raging sauce
Volunteers for clean up 😆
so which one was the best?
I think if they built it more precision and neatly glued, it will hold more weight.
I did this,the trick is to build ur bridge with triangles patterns
The third one did kinda have way more spaghetti, but I guess the others should have used more XD
Harry 8642 when I did this in school it was also judged by weight of the bridge. That was also a factor
i assume they had weight minimum and maximum and you can see at beginning they was measuring the bridges and added weight on at least one.
Zo Mi he put more spegeti at the middle.. in real bridges middle part should be light... It could break in its own weight......
4th bridge was the best...
It says the winning bridge had highest weight ratio of bridge to load anyway so
Harry 8642 It,s becuse it had a structure mostly of triangels, which is the strobgest structure
Hello, I am a girl at the university. I am required to make a model or project a cardboard bridge that is a meter long and bears a weight of 160 kilos, and it is very important. It is my graduation project. Can you help me and I hope for a serious response. I need your help in this project, how do I start and what are the laws
wow impressive
The water is not boiling, those spaghetti will never be cooked...
remember folks: triangles
Bridge simulator?
Its all about the triangles
so which one won the test?
Bridge in Genoa was made from....
What were the results?
mark ?
music :Widek ?
Im supposed to be doing a project right now and instead im watching others peoples projects..
This bridges gave me an idea to finish my level in build a bridge
The top members in compression, should be made with " bucatini" pasta. Kkk
A seminola experiment! Congrats, MS 1972 Forestry.
What are they pouring into the bucket? Water in such a wide range?... Would of used a slimmer object (ex. a beaker or a bottle) and maybe marbles instead for precise measurements?...
Edit: Right after finishing the sentence(s) above I realized that they were pouring sand in... Alright! Still controversial to me though!
11:20 PM
4/13/2019
spaghetti is strong for tension but not for compression.
team with reinforced roof wins.
ITS FOOKIN *R A W*
Meu trabalho da ponte tá chegando, me desejem sorte ...
Song title, anyone?
Apenas Vi esos diceño ya se cómo fortalecer x 2 cualquier tipo de estructura
Вермишелевые мосты?.. )
Guess we had to pay attention if we cared for total weights of the best designs but #4 at 2:16 took 30 at 89g and a portion of 49, say 20 ... Nice efficient design and great music overlay
Meanwhile...the stoners, last ones at 3:46 didn't even bother to take their hands out of their pockets
social anxiety maybe...
What a nasty, judgy, unnecessary thing to say about literal children doing science for a friendly competition
ผมชอบแบบสะพาน ขึงมากกว่าแบบทรัส หรือแบบ อาร์ค..ครับแข็งแรงที่สุด.
SOMEBODY TOUCHED MY SPAGETT!
2019?
this is how bridges in Italy are made.
Que materiales ocuparon alguien.me puede decir?
Why do high schoolers look so much older then
Someone could have eaten that glue!!!
Build spaghetti bridges instead of macaroni walls.
MaghoxFr
Underrated post
Second one my favorite
I think you should wear protection glasses! But I LOVE them!
Bridges have collapsed 'cause that was not genuine Italian Pasta!! ^_^
Somebody toucha my SPAGHETTTTTT
sleak meat i thought somebody would do this comment
impressive!
SOMEBODY TOUCHA MA SPAGETTE
Aids Meme
Gilligans Island bridge at end
Sad for the girl who couldn’t even hold the damn bucket
ok scal base ist felix working now jotter spring und refil v can stage upgrade mite b yu failed in ductile und maliability of britnez spears kps sir🌵
imagine what u could do with the spaghetti noodles instead of making a bridge..
Eat them? not hard to imagine.
spaghetti n3 or n5
SOMEBODY TOUCHA MY SPAGHETT!
Loads under Compression is the key :|
so that's what they do in American schools
Conclusion: just use triangles dude
muy interesante
Con q unen el fideo?
ayelen vega :3 Silicona caliente. Hot glue.
Cool
Жаль у меня таких экспериментов небыло в универе.
they glued all spaghetii , that is plaastic not spaghetii
No its nottt
BRUH, ITS CALLED SPAGHETTI CONTEST
Why the fuck i am watching this at 2 am.
Looks more like a high school physics class...
Nc
I wish I was that good!
1:09 who is this girl . I want to hire her for our company. we built anti gravity bridges . so her job is going to be work perfect for us.
Thiết kế j mà lạ lùng k đảm bảo tính cơ học j hết lấy đâu chịu lực đặc biệt biệt là cái đầu tiên
This made me hungry