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.
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
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
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....
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
@@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 :)
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!
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
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.
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).
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: ruclips.net/video/Uzm93QSB6fY/видео.htmlsi=Dkr139lU2RLe3JVC&t=51 Second Bridge: ruclips.net/video/Uzm93QSB6fY/видео.htmlsi=Net_DKQV0dGEyEHj&t=65 Third Bridge: ruclips.net/video/Uzm93QSB6fY/видео.htmlsi=LfTtiWblM8xIvl-F&t=132 Last Bridge: ruclips.net/video/Uzm93QSB6fY/видео.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).
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!
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'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
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...
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?
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
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.
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)
100% italian engineering
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.
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
Fill the bucket with a tube with flow regulation from a large bucket where you can measure how much water went in!
Reason of failure:
SAUCE was missing
Just sauce...
no ketchup ?
Lamb sauce
raw sauce
haha
Polybridge in Reallife.
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
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....
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
I'm a retired Ironworker that worked on some bridges . I'm impressed
Interesting how the top members buckled as the bottom bowed . Maybe if the rules , allowed make in a triangle shape looking along the bridge ?
That was cool. Why didnt I ever get to do stuff like this in HS?
2nd last is great engineering as it uses less material in construction and carry huge load.
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
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 :)
Some of these kids definitely play poly bridge
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!
How i wish we have like this in school it looks fun.
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. 😄
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
We did this in the 8th grade I believe with toothpicks. The weights would get pretty surprising.
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).
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: ruclips.net/video/Uzm93QSB6fY/видео.htmlsi=Dkr139lU2RLe3JVC&t=51
Second Bridge: ruclips.net/video/Uzm93QSB6fY/видео.htmlsi=Net_DKQV0dGEyEHj&t=65
Third Bridge: ruclips.net/video/Uzm93QSB6fY/видео.htmlsi=LfTtiWblM8xIvl-F&t=132
Last Bridge: ruclips.net/video/Uzm93QSB6fY/видео.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).
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
This is not a good indicator of the strength of the bridge because most of the support was placed where the bucket was hanging.
Very nice. Great efforts!!✨️✨️
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.
so which one was the best?
Wait, the first two broke after 89 grams?
2:25 it's pretty much a roof truss structure
Next time put the weight as it is put in the bucket please
The water is not boiling, those spaghetti will never be cooked...
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
Bridge simulator?
mark ?
music :Widek ?
how much weight did those took?
Awesome. How long did it take to construct the bridges?
Third one so incredible
Joanne Caudell glue gun
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
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?
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
so which one won the test?
What were the results?
Молодцы ребята!!!
Que materiales ocuparon alguien.me puede decir?
Song title, anyone?
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 😆
Con q unen el fideo?
ayelen vega :3 Silicona caliente. Hot glue.
This bridges gave me an idea to finish my level in build a bridge
wow impressive
Скажите, а какие технические условия задачи? Что они в себя включают?
Its all about the triangles
I did this,the trick is to build ur bridge with triangles patterns
Im supposed to be doing a project right now and instead im watching others peoples projects..
2019?
I think if they built it more precision and neatly glued, it will hold more weight.
remember folks: triangles
Bridge in Genoa was made from....
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.
SOMEBODY TOUCHED MY SPAGETT!
Somebody toucha my SPAGHETTTTTT
sleak meat i thought somebody would do this comment
spaghetti is strong for tension but not for compression.
team with reinforced roof wins.
Meu trabalho da ponte tá chegando, me desejem sorte ...
The top members in compression, should be made with " bucatini" pasta. Kkk
this is how bridges in Italy are made.
ITS FOOKIN *R A W*
Someone could have eaten that glue!!!
SOMEBODY TOUCHA MA SPAGETTE
Aids Meme
A seminola experiment! Congrats, MS 1972 Forestry.
imagine what u could do with the spaghetti noodles instead of making a bridge..
Eat them? not hard to imagine.
Apenas Vi esos diceño ya se cómo fortalecer x 2 cualquier tipo de estructura
ผมชอบแบบสะพาน ขึงมากกว่าแบบทรัส หรือแบบ อาร์ค..ครับแข็งแรงที่สุด.
Build spaghetti bridges instead of macaroni walls.
MaghoxFr
Underrated post
Why do high schoolers look so much older then
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🌵
Bridges have collapsed 'cause that was not genuine Italian Pasta!! ^_^
impressive!
Second one my favorite
SOMEBODY TOUCHA MY SPAGHETT!
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
Why the fuck i am watching this at 2 am.
spaghetti n3 or n5
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
muy interesante
Gilligans Island bridge at end
Nc
Looks more like a high school physics class...
Conclusion: just use triangles dude
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.
so that's what they do in American schools
Sad for the girl who couldn’t even hold the damn bucket
they glued all spaghetii , that is plaastic not spaghetii
No its nottt
BRUH, ITS CALLED SPAGHETTI CONTEST
Cool
Loads under Compression is the key :|
I think you should wear protection glasses! But I LOVE them!
SomEbAdy T0cha mY SPaghett
wow
This made me hungry
I wish I was that good!