The bridge was more stable than the cameraman.

@Lycouris

3 жыл бұрын

ikr,the camera man is trash

@alexalmonte2939

3 жыл бұрын

I think the camera man was going through a withdrawal of some sort😂😂 the way he was breathing and shaking 😂

@ddsbabes7140

3 жыл бұрын

omg ur on point haha,by d way care to aub guys i would be nice ty😅

@darkjustice851

3 жыл бұрын

👍

@johnray854

3 жыл бұрын

OH SNAP!... sound of sonic boom cause I said it so loud

Insane holding that much weight during a earthquake!

@Abuda7amHD

5 жыл бұрын

Anthony Cabrera underrated comment

@makinamati

5 жыл бұрын

These are so frágile on earthquakes... If edges separate enough do to an oscillatory quake the bridge wont broke. Just fall complete. It always happens... Axes mst be really long to allow movement of given buildings

@zigbo5659

3 жыл бұрын

Lmao

@dava8058

3 жыл бұрын

Are you Referring to the cameraman?

@Serenelove520

3 жыл бұрын

LOL

I entered this contest when I was in college, it is a great challenge for engineering students to get off the CAD software and actually build something and test it. We weren't allowed any metal pins though, only popsicle sticks and white glue, anything else used was a disqualifier. I still have mine hanging in my garage as inspiration. This group did a great job.

@twiss9341

3 жыл бұрын

:)

@thefourshowflip

2 жыл бұрын

They did outstanding…they better have gotten an A on this one 😁

@cabletie69

2 жыл бұрын

how did it perform in the test?

@johnnybgoodbeesandbarbecue5788

2 жыл бұрын

@@cabletie69 if memory serves, we held about 2000lbs of downward force on the centre beam. Designed a gull wing truss like this...'IAI'...It nestled tight below and between the outer supports, and transferred the forces directly to the rig itself keeping the majority of the structure in compression rather than tension. We also pinned each connection with toothpick sized pins to strengthen the load bearing joints and dovetailed each length of popsicle stick so that they didnt slip where they butted against each other.

@cabletie69

2 жыл бұрын

@@johnnybgoodbeesandbarbecue5788 impressive result! Nearly one metric ton.

This is the type of stuff that prooves if you actually learned stuff and were not just there to fill seats

@yureino

3 жыл бұрын

Not exactly. Its a group work & inside the group there are always teammates who just fill seats.

@nivrrtakr2891

3 жыл бұрын

@@yureino SHADE HHHAAHAHAHAHA

@brianbrian31

3 жыл бұрын

Haha 🤣

@cx4936

3 жыл бұрын

@@yureino If you're lucky, those bench warmers will offer to pay money. But most cases they do nothing and still expect to get credit for the group work.

@williamyu5991

3 жыл бұрын

@@yureino nah it’s uni not high school. In univ- at least in my uni everyone participated .

I would replace the loading technique with pouring sand into a container to get a more exact failure weight

@aniket8350

3 жыл бұрын

Also it will increase the weight gradually

@scottwales5966

3 жыл бұрын

You boys would be in charge of cleaning up then

@fultontracymendoza6149

3 жыл бұрын

Yer right! And would it be more accurate if the load was put on top(not bottom) of the bridge?

@flappy7373

3 жыл бұрын

@@fultontracymendoza6149 the bridge is designed around the idea of the load being applied like this though..

@Cyba_IT

3 жыл бұрын

Do you realise how much 120+ kg of sand is though? Just not practical

Why do they always find the weakest link to operate the camera?

@Dloweification

6 жыл бұрын

Most likely one of the profs. So chances are pretty good they know a whole lot more than you.

@imallearsru

6 жыл бұрын

LOL you call this acceptable camera work for a record attempt, wow you have very low standards. If it is a prof then it looks like he's suffering from detox shakes, give the poor guy a drink.

@JasonHenderson

6 жыл бұрын

well what other job do you suggest he do?

@FieryRedDonkeyOfHell

6 жыл бұрын

he's a damn engineering prof not a film maker

@machiii7394

6 жыл бұрын

This was recorded at a University, I doubt they're going to bring in a professional to record a wooden bridge :l

Hopefully this engineering student has found relief from his constant seizures!

can we all just appreciate that 50 or less Popsicle sticks held up over 280lbs of weight..???

@bamsuth9650

3 жыл бұрын

yes, because thats what this video is

@okiriotaa4664

3 жыл бұрын

What kg 280lbs is?

@bamsuth9650

3 жыл бұрын

@@okiriotaa4664 around 120 kg

@Starnoch

3 жыл бұрын

ur saying 50 or less popsicle sticks can hold two of me?

@irhamhafiez7502

3 жыл бұрын

@@Starnoch yeah

I remember building a balsa wood bridge in secondary school. I love engineering and two others in my group did as well. We designed a bridge that worked so well using designs that were really cleaver and fantastic. In the end we ran out of bricks to put on the bridge, so we got the teacher to stand on it. Our bridge still sits proudly on the wall of records. We set the record of 140KGs.

@iverburl

2 жыл бұрын

In my high school physics class in 1975, two students took their quota of balsa splints and laminated two beams. It was better by many orders of magnitude. They illustrated why we don't build truss bridges and captured the essence of composite construction which was taking off at the time. The dinosaur teacher disqualified them as "not in the spirit of the contest".

@ryo-kai8587

2 жыл бұрын

@@iverburl Right? _"You're here to learn to be the next generation of innovators"_ *_"Oh, you innovated too much."_*

The camera man was still high from all the adhesives used in this project.

@BryanTorok

3 жыл бұрын

It was plain white (PVA) glue like used in elementary school. No fumes or harsh solvents. You can eat it without ill effects. Safe for children.

If only they could also build a stable camera stand.

@PrincipalCowbellist

4 жыл бұрын

If only people realize that not everything is a proper video shoot.

@s1v3bid

3 жыл бұрын

@@PrincipalCowbellist doesnt need to be to hold a camera steady

@Sameer.K2

3 жыл бұрын

cheers mate. it was 2012 (or maybe older)

@Canuck21530

2 жыл бұрын

Shake demonstrated that it’s earthquake

Never have i been so happy or seen anyone so happy to see their project break....after all, it's a truss bridge, and we all are eagerly waiting for it to break at some point😃🙌🙌

Wow. They added almost 111kg (244lbs) to the bridge before breaking. That's insane

@2DReanimation

4 жыл бұрын

Yeah, that's just insane. I'd not trust a 3cm thick and 15cm wide plank to hold that weight!

@dirkphillips9311

3 жыл бұрын

That means that I could stand on it and have 90ish pounds of leeway before it broke

@shrimp3486

3 жыл бұрын

Dam that about double my weight though i do not trust that it would hold me because of mass and the slight movement and vibrations our bodies give off

@harithahmed104

2 жыл бұрын

@@shrimp3486 yep a nail hanging off a wall could hold a car. But applying any moment on the car would cause that nail to break off. People underestimate, how strong every day objects are

@mossoconnor4417

2 жыл бұрын

@@2DReanimation Over that span it would hold that easily

Fine, I'll watch it, KZread.

@LogiForce86

6 жыл бұрын

Simon Well, at least I know now how to count to three on a university level.

@geiiger

6 жыл бұрын

FINE

@zacks240sx

6 жыл бұрын

Simon lol

@chrisj9447

6 жыл бұрын

Honestly

@dienerfive2693

6 жыл бұрын

Same reason i watched it haha

The crazy thing is that the actually bridge part didn’t fail the sticks failed

@thelemon2764

3 жыл бұрын

That's what's going to be the source of failure no matter what, it's just about designing it to distribute weight across all of the sticks.

@destiny_draws

3 жыл бұрын

@William Lyon I think they mean the parts where the sticks connected, whereas the breaking point was actually in the middle of the popsicle sticks instead.

@presidentelecttaterpuddin1626

3 жыл бұрын

@Neal Head pressure will almost never be evenly distributed across a bridge

@oliverhoare6779

3 жыл бұрын

??? the sticks are the bridge, it's like saying an actual bridge didn't fail because only the cable snapped

@xmarine73

3 жыл бұрын

What will melt your brain more than this is they had stacked the weight on top of the bridge it would have had a different breaking point, in terms of weight. It may have been less or it may have been more but having it distributed differently would have changed the physics.

I’m probably the only one here that searched for this video.

@levihuerta9393

3 жыл бұрын

Tell me your story

@manlycupcake3097

3 жыл бұрын

I'm with GARLIC BREAD PROVIDER

@axl-pt3ou

3 жыл бұрын

@@levihuerta9393 I’m in a Poe class, and we were instructed to create a bridge from 1/16 inch wooden sticks. I searched up videos for ideas on what kind of bridge to make, and this unique design caught my eye.

@raptoruldx8529

3 жыл бұрын

yes

@Dubstep195

3 жыл бұрын

Damn was gonna say that but you stole it. Wanted to see what kind of bridges are the strongest in the world and I somehow stumbled upon this and it caught my eye and honestly glad I watched it.

I remember doing this same project in my 7th grade industrial science elective class, very fun assignment. A couple of the teachers had an on-going fun feud to see which of theirs could outperform the other and awarded the students with extra points for getting the highest load or breaking a record. Learning can be a lot of fun! 😁

@hochigaming14yearsago90

2 жыл бұрын

You could select your 7th grade class?

6:04 "that's 19 and 8... Soooo 26" Im not going over any Bridges in new Zealand from now on

@dolphinboi-playmonsterranc9668

6 жыл бұрын

Raphael Thorp He bad at math

@robcurios740

5 жыл бұрын

So they actually beat the record by 7...

@welshsteve2009

5 жыл бұрын

Lol, I noticed that too and decided to check the comments first before I commented 😂

@bobby1985

5 жыл бұрын

Lost that little casio calculator. LOL.

@andyu69

4 жыл бұрын

19 + 8 sooo 26 with 1 as a safety margin for people who don't read safety limits for my NZ bridge - I feel safe here in NZ

Jesus Christ I am a bridge Engineer and this impressed me !!

@jhonfamo8412

4 жыл бұрын

With a focus where the load would be placed. It's cool

@cloudsculptor1

4 жыл бұрын

george waite is the load being off centre relevant ?

@scientist100

4 жыл бұрын

Seems like you're under qualified in this case. I am a design engineer and I was not impressed by this.

@victor8992

3 жыл бұрын

@@scientist100 username checks out.... not

@scientist100

3 жыл бұрын

@@victor8992 ok captain obvious.

Probably not a good idea to be filming after a heavy night of drinking. The shakes can be a terrible thing.

Since 90% of these comments are disrespectful ill drop in to say good job breaking the record there that was impressive

@solutionone3777

6 жыл бұрын

76.4% you fucking idiot.

@Chowbizful

6 жыл бұрын

what record m8 ?

@alfonsomena8141

6 жыл бұрын

Anthony Cannon tried to resign and get my own team and also develop more but you know how engineering goes people don't want to see you on the top so they it do their thing

@Loachie90

5 жыл бұрын

SOLUTION ONE disrespectful reply

@JH-jo9wt

5 жыл бұрын

@@Loachie90 You must be big into humour Micheal?

Geez Zuss.... can the cameraman take some classes there???

@pipsantos6278

6 жыл бұрын

Frustrating. Cameta did not focus on the truss and the weight.

@chupameoscolhoes

6 жыл бұрын

the cameraman suffera from autism dude.. we should respect that!!

@fireplaceninja

6 жыл бұрын

At least it’s horizontal

@bossman7144

6 жыл бұрын

Well it ain't a film class

@31.l3d3

6 жыл бұрын

waxandwane iiiiiii

As an mechanical engineering student at Worcester Polytechnic institute in the early 1980s we did the same exercise. Turned out design and calculated load was as important as construction technique. We were not allowed to use mechanical pins. Some of the students even fashioned gusset plates out of the glue tube !

@oleran4569

2 жыл бұрын

Great! That's really using the materials "at hand".

I did this exact same design project in the 1st semester of 2018 at UoA and thought I would clear up some common queries in the comments. First-year students are given 3 weeks and a limited number of popsicle sticks to create the structure. There is also a tonne of ridiculous spatial requirements between the two resting points which largely dictate the unsymmetrical shape of the structure. These shapes and joints could theoretically hold a lot more weight as the limiting factor is the grain of the popsicle sticks, almost all examples break transversely to the grain at the loading point. You may notice that this structure has almost excessive cross-bracing on its top to withstand the largely imperfect loading method. Structures without sufficient crossbracing fail almost instantly (like,

@w8stral

2 жыл бұрын

Necro post. =) That is Ok, if you asked me. It held 1087N @146g ~750:1. Caveat, maybe they were forced to use the bolts as junctions compared to most other engineering competitions? Did you have to do that? Did not even hit 800:1, let alone 1200:1 for same competition held elsewhere in world(usually with longer span). The next caveat is the 10g of glue limit as most other bridge competitions usually meter out the glue based on volume instead of weight as they use "white" water based glue instead of PVA(rather odd)so I do not know how this converts to other competitions(the one I did and thousands of others around the world) and they might have chosen this to PURPOSEFULLY differentiate this competition due to the age of the internet and ability to download files from other people and same goes for your stated misalignment of the footings which does not make a difference to anyone who knows how to build anything, but to someone who is lazy and tries slapping something together at last minute... yup. Also, the span used in this competition is shorter than normal which significantly helps increase the load numbers and strength to weight ratios. Always a good engineering competition. The ball bridge drop test catch engineering challenge is even better along with the earthquake building challenge. PS: No "I" beams built out of the popsicles makes this a poorly designed bridge as a competition example. Stopping the transverse grain splitting on the popsicle sticks is easy with a little glue and a shred of cross bracing against the grain direction.

Most satisfying video? I just wanted it to break. For real though

@vikramsingha2312

3 жыл бұрын

Of course I understand 😉 I won’t tell them about your KZread channel

@dubious_potat4587

3 жыл бұрын

Never expected you here lmao

@adm4939

3 жыл бұрын

Love your videos bro

@eczplaysgamesyt2885

3 жыл бұрын

@@vikramsingha2312 tf if I knew ur location I’d probably find lost boys in ur basement and verified KZreadrs which u captured

now can they learn how to operate a camera?

@michaeluncapher83

8 жыл бұрын

+TheRoguePhysicist lol

@rolo9263

6 жыл бұрын

TheRoguePhysicist it is sideways idk what your talkimg about

@Arvak777

6 жыл бұрын

That's for art majors.

@godzuki101

6 жыл бұрын

They're engineers.... they can tell you how a bridge is supposed to be built but have no idea how to cross one

@fetB

6 жыл бұрын

this was 5 years ago. People today still use vertical

This is pretty cool. I'm a EE so have no idea how a bridge works but as a different kind of engineer can still appreciate the work

Also CONGRATULATIONS to the team who designed and built this masterpiece!!!

maybe they should offer a course in film making.

@bbqqreen

6 жыл бұрын

I almost got an epilepsy watching this video

@loujasper9260

6 жыл бұрын

U mean film shaking?

"19+8" "26" Engineering students.

@cosmosity1693

5 жыл бұрын

I was wondering why he was using a calculator, would've counted that in my head low iq engineers

@scarmiglionealighieri2666

4 жыл бұрын

At some point you really stop doing little maths like that and focus more on other things like analyzing problems to determine what equations/methods to use.

@y.z.6517

4 жыл бұрын

Little engineering tip: never waste any time solving what computers can do better.

@y.z.6517

4 жыл бұрын

@@cosmosity1693 Because it's just as likely to have 13.24*pi. You don't know what will you encounter next, so better use a method that solves all.

@y.z.6517

4 жыл бұрын

@International Jujuman Miscalculation like that is like little grammatical mistakes. You don't correct people, because nothing is gained in doing so.

I remember doing this in high school metal shop. The difference though was you had to make this out of 2 meters of oxy-acetylene welding wire and weld each joint. So it was a test of your design and welding skills. Pretty proud to say I held the record for at least the 4 years I was in school.

@Dortchskii

3 жыл бұрын

My similar thing was to make a foundation using 4 index cards and 2 inches of scotch tape. I remember my group not wanting to take my idea so I went and freelanced it and had the best solution. Held every text book in the classroom. Its really an easy solution if youre even just a little bit mechanically or structurally inclined.

I miss fun engineering classes. I had a beautiful bridge that took like 140 lbs to break and was something like 60g, made of balsa so not a fair comparison to popsicle sticks

Why it asymmetric tho Edit:WTF,That thing is strong

@callumwyper

3 жыл бұрын

It puts the load closer to being under an anchorpoint therefore reducing the stiffness needed to hold the weight up and reducing the strain on the structure of the bridge.

@SpamSucker

3 жыл бұрын

@@callumwyper now if only you can convince all that vehicular traffic on your bridge to distribute their loading per your optimized design... Edit: I recognize that the design probably fell within the requirements of the competition, I just don’t agree that it’s an appropriate simulation of real-world requirements

@keepercool98

3 жыл бұрын

@@SpamSucker What if it is just an estructural part of, for example, a machine, such as a crane. It is quite easy to be a smartass, not so much to think outside the box...

@chandy3859

3 жыл бұрын

@@SpamSucker i don't see anyone who say that it's an appropriate simulation of real-world requirements

@rvllctt871

3 жыл бұрын

@@callumwyper We had the same design problem at QIT (to span two points with a sheet of paper) only the load had to go through the centre. I got 100lbs which was the record in 1975.

Thank you UoA, my brain will now be fighting itself for the rest of the day.

To everyone commenting about the camera shakes. This is from 2013. Digital stabilization wasn’t necessarily widely found on cheap cameras/smartphones.

I loved these experiments in college and high school. So much fun.

The real winner is University of Aukland, 4M+ views

Nicely done, team! Next assignment... Camera Stabilizer.

Loved Statics. One of my favorite classes. You never see your surroundings the same after that clas.

Very nice! That's about 244 lbs. I had to do a similar thing working with my young teen's his science class. Sadly, it was all balsa sticks and no screws were allowed. But we fell farrrrrr short of this. It's a superb way to learn about structures

good job..keep moving forward 😃

Wow, that tiny bridge held 1 and a half times my bodyweight. Hats off to the kids who built it!!

Had me on the edge of my chair., Bravo well done....

Brilliant placing the loading point off center! And biasing it towards tension rather than compression! Wonderful.

@redreuben5260

2 жыл бұрын

Are you referring to the asymmetry ?

@Aheitchoo

2 жыл бұрын

@@redreuben5260 yes the asymmetry. I believe the closer you place the load to the edge, the less moment you need to deal with.

@redreuben5260

2 жыл бұрын

@@Aheitchoo That’s fine for a static test but does it apply when a cement truck drives from one side to the other ?

@Aheitchoo

2 жыл бұрын

@@redreuben5260 This certainly wouldnt work for a cement truck. But as a discrete solution to a discrete problem its clever.

At least the video wasn’t recorded vertically

He cheated.. he had more Asians in his team...

@henkiedebomb

7 жыл бұрын

Addicted To Loli lmao

@vincencohan3626

6 жыл бұрын

Hahaha good one

@rhiganaxzyr

6 жыл бұрын

Addicted To Loli so does it mean that we asians are better than anyone else?

@godfreypoon5148

6 жыл бұрын

Someone had to lift the weights.

@Ripaltico

6 жыл бұрын

+Godfre Poon Hahahahah, very good.

We did this in middle school, 8th grade... was a blast learning about tension loads.

This reminded me of a bridge I built out of balsa wood and glue in high school AP physics class. We ran out of weight objects(which were being placed in a 5 gallon bucket) and the bridge didn't break. I used the Roman arch principle as inspiration for design and placed arches along outer edges on both sides and in between the two outer rows perpendicular to them.

look something worth filming! Quick get the worst cameraman we can find!!!

@eggory

6 жыл бұрын

I suppose he was the best cameraman they could get.

@geiiger

6 жыл бұрын

/r/killthecameraman

@justinthyme5730

3 жыл бұрын

Call me misogynistic, but the cameraman must have been a woman. lol

@victor8992

3 жыл бұрын

Justin Thyme you could hear his voice, dumbass

@yumiko523

3 жыл бұрын

@@justinthyme5730 I think we all know a man is more likely to be worse at filming than a woman.

Man, that was a great bridge. Good job. I wish my bridge would of lasted that long.

@alfonsomena8141

6 жыл бұрын

-〉FuKzWiTiT〈- I would even cut my own tree down and even plant them to carrots enter that into the input output but they don't let me do that

Wow that was both thrilling and educational..👍 nice work on the bridge..

This is what saves life's. Keep going at it!

19 and 8 is 27, Not 26. Where’s my engineering degree

@atomm4675

6 жыл бұрын

Cluckinwing you mean your mathematician degree?

@alfonsomena8141

6 жыл бұрын

Cluckinwing 87 % output of manual labor and const. Pos. Ma th

@leandrog2785

6 жыл бұрын

Atom M Arithmetic computation is more related to engineering than mathematics. Engineers have to compute much more than mathematicians.

@dylanstump7389

6 жыл бұрын

actually mathematicians typically dont deal with real numbers

@nateframbach830

5 жыл бұрын

1+2+3 is not exactly 6

Having done this in an engineering class in high school I have to note the way in which the structure collapsed which was via the load point only leaving much of the bridge structure intact. I remember many spectacular failures, including my own bridge, in which the entire structure collapsed and failed. I don’t remember any, though there could have been some that collapsed at the load point. Very fun to watch!

Its good having fun and learned skills, and ideas. Wish all schools do same as this. Group project to enhance there skill, ideas knowledge and teamwork.

This reminds me of a paper bridge contest we had at school. We were given 10 sheets of paper and some glue to make the strongest bridge we could come up with. My design used only 6 sheets. I made a layer of paper folded back and forth in a zig zag pattern, glued the deck onto that and added a triangular "tunnel" to the bottom to give it all some extra strength. That bridge not only spanned almost twice the length of all the bridges my classmates had made but also carried more than 3 times the load the teacher had set as a target.

@G31M1

4 жыл бұрын

You should habe build little paper cars and trucks that go over the bridge with the 4 paper sheets you had left lol

Mom : " Quit eating Popsicle's for Breakfast , Lunch and Dinner ! ". Kid : " It's for School ! "

Let's give the camera to the parkinson guy

@christianstein9507

5 жыл бұрын

As cameraman is a good engineer 😏

@FelixEddin

5 жыл бұрын

Haja

@mnbz2031

3 жыл бұрын

lmao

proud of you guys

Truly amazing !!! Awesome job !!!!

Only as strong as the adhesive!

@larryscott3982

6 жыл бұрын

nytom4info Call me crazy, but I'd use a bucket and slowly fill it with water. That would allow for adding the last fractions of a N in small increments.

@nnelg8139

6 жыл бұрын

Larry Scott how would you keep water from spilling everywhere? If it was really important, there are digital force gauges that can measure precisely how much force was applied before failure, and even create fancy graphs of the load over time.

@larryscott3982

6 жыл бұрын

Nnelg A sufficiently large bucket only has to be suspended 2-3 cm. And a digital load cell that records data, rate of increase, and maximum load. Even if the bucket spilled. The some what large weights don't permit a fine granularity of increase. Either way, the very high engineering of the truss seemed to be determined by an unreasonably crude application of load. What if 1st and 2nd place were separated by 10 g? And the 3 second count to add more? A steady stream of water adding a given load per second, which can be regulated to appropriately slow, would seem to be more objective. And the rate could be digitally recorded as well. IMO

@nnelg8139

6 жыл бұрын

If the top two are separated by less than one Neuton of force, then it's simply a tie. This isn't some inter-school competition with a cash prize involved, it's a class project for first-year mechanical engineering students. It doesn't really matter who wins, the point is just for the students to put what they learned in class to a real-world test.

@larryscott3982

6 жыл бұрын

Nnelg Well mechanically, water in bucket is simpler. And simpler is good engineering.

We did something like this in high school. Our team lost on a technicality. The winning entry was demolished during the test. We took ours home.

superestructura. felicitaciones. Buen manejo de las cargas.

That was so cool. Great project.

Please redefine the wording to the video title - This is not a test of a bridge - but the test of a central load hanger

My bridge (2019) held upto 550N, very proud of my bad boi! 😅

After I'm taking an Engineering course in post-secondary school, I'm starting to get interested into watching these videos xD

I wish we had got this much fun learning in my days in engineering college.

As a woodworker I wonder how much the wood comes into play. Depending on what part of the tree each stick is cut from can have a big difference in strength. Old growth trees will have tighter growth rings making it stronger compared to farmed tree with wider and weaker growth rings. The PVA glue too. A rough piece will stick together better then if both pieces are smooth. 🧐

@niklFIT

2 жыл бұрын

Exactly what I thought, I would definitely treat the wood with some sand paper at the areas where glue is applied. The part about using stronger better stick is probably part of the competition, I am sure the teams built dozens of prototypes before ending up with final design, so they definitely noticed that some sticks are stronger, the glued parts tend to fail less if the surface is rougher etc. But my guess is that the design is 90% of the strength. I am more mad about the weighting process, first off yoj should apply weight on the top of the bridge, it would carry much more weight, or dont call it a bridge but a hanger or something, but it is dumb because with a bridge you distributing the weight over the whole construction, where with a hanger, that spot where you hang is the most stressed. But the worst part is adding weights, why keep adding 10kg plates, why not add like +1, +2, +3, +4, remove and add +10, they failed at +10 but the limit was anywhere from +1 to +9. Also the dude is not very gentle adding the 10kg plates, so the inertial force might have actually peaked at few kgs higher if the plate was actually slightly dropped. I dont know, I would personally load it with a hella strong wire that is slowly spinned onto a coil, with a peak force meter in between.

In highschool I remember we did this and I won for efficiency (weight of bridge vs payload) with a 19 gram bridge that held over 1500x its own weight. (yes that's a bit over 50 lbs) Basic rules: 30 cm Span, 5cm wide "roadway", using only 1/8" basswood and what I think was PVA glue. It was some white hobby glue I forget exactly what it was. Load simulated by 8cm x 4cm wood blovk with a hook on the bottom (where the bucket hang from), which is rotated slightly diagonally to spread the load onto the sides. Also, no laminating 2 pieces together (except for where the "sides" met the "roadway"), and there were a few other specifics.

@robbyfn

2 жыл бұрын

this bridge held up 110 kg or 242 lbs

WOW ! , just AWESOME Stable !

Very impressive keep up the good work

In my opinion: the big problem was the V-shape where the load was attached. The v-shape produces tension outwards to the left and the right of the bolt. I think a curved shape in dimension of the bolt would be better.

@Siethon1

2 жыл бұрын

Lol Idk why I'm replying to this 4 years after you made the comment, but if you look carefully at the joint at 1:35 right before the bolt is placed there is a curved connector piece of wood that straddles the V

@warsson1

2 жыл бұрын

They have curved chop sticks?

@TheCerovec

2 жыл бұрын

@@warsson1 put them in water and bend them the way you want

I haven't the slightest clue what the hell this is or why it's in my recs, but they sure seem excited.

Always good to see.

my education fron Eng School served me well. Our bridge back in the 70s was a hardboard box girder.

Dang an estimate of 1.2 kN and an actual value of 1.087 kN is hella impressive! Nice job! Btw, it supported 111 kg!

when you make that out of 10 sheets of 8x11 normal stock copier paper. call us. No joke that is the final engineer bonus test we had to tackle.

@surfside75

5 жыл бұрын

Go on.. 😂

Great job

Brilliant camerawork

Seems like a really strange place to position the weight.

@datraktorman69

6 жыл бұрын

Rice Man that's what I thought, shouldn't the load be on the top of the bridge?

@ianide2480

6 жыл бұрын

Or in the center of the bridge.. Offsetting it like that will increase its payload capacity.

@zoki.to974

6 жыл бұрын

you build a bridge for a task it should do and by required conditions. if load was intended to be on the top or the middle of the bridge, design will change to accommodate load. as example for this design, i can picture bottom road hanging from this bridge structure. anchoring is at the top of the hills/mountains, road is in lover level of the same hill and canyon under...

@aurtisanminer2827

6 жыл бұрын

I assume the rules didnt say the load had to be completely centered. Since the purpose of the bridge was solely to win a competition, all they had to do was stay within whatever guidelines were given.

@zoki.to974

6 жыл бұрын

there are tons of bridges with asymmetric loads and just one example is pylon bridge in belgrade serbia as newest addition of the big bridges...

WON TOO TREE

@defdiaz9942

6 жыл бұрын

for. fi

@garroshhellscream8069

6 жыл бұрын

nonya bizznes si, sean, ate, neigh , ten

@user-wy2kn4bm7f

6 жыл бұрын

nonya bizznes el eben, twelm, thering, fworning, fwifing, sickteen, selming, ehing, nyneing, Tweny

@ahmedelhori6009

6 жыл бұрын

Juan to tree

@destrudoalexandros5562

6 жыл бұрын

nonya bizznes Ett, Två, Tre, fyra , sex ?

Good effort! Reminds me of a competition we did at school to use just cardboard and PVA to build a bridge that span 1m. Its all in the glue :D

We did this in my high-school. Someone made a bridge that withstood the max weight we had so we made a kid stand on the thing underneath and it still didn’t break.

KZread: 2012..nope 2013..nope 2014..nope 2015..nope 2016..nope 2017..nope 2018..nope 2019..yes, let's recommend it.

@psd_notor8886

5 жыл бұрын

HAHAHAH

@octopusji9483

5 жыл бұрын

Insane KZread

@adeelshabbir8039

5 жыл бұрын

Hahaha something is fucked up with KZread 😂😂

@demrickdrew7398

5 жыл бұрын

2019

@baileywatts6703

3 жыл бұрын

I got it recommended in 2020

Have a contest on who can hold the bloody camera steady the longest Terrible

I don't have access to the rules of the competition, but it seems to me the load should have to be applied at the midpoint (ie: equidistant from both side supports) to ensure a level playing field for all contestants.

Excellent camera work.

What a truss ! :)

@carlosfruiz766

9 жыл бұрын

what is truss?

@YostPeter

8 жыл бұрын

+Carlos F Ruiz Why are you even here?

@TheRealist1.

8 жыл бұрын

+Carlos F Ruiz supportive system, could be a bridge. people are mean

@carlosfruiz766

8 жыл бұрын

I've never heard what truss is. That's why I'm asking I think that is from New Zealand or maybe.

@TheRealist1.

8 жыл бұрын

+Carlos F Ruiz I'm sure there are trusses there too, but you aren't an engineer, and as long as your house or bridge doesn't collapse you're cool. It's just triangles formed to make support systems, triangles are the strongest geometric shape.

F=m x a which means m(kg) =F(newtons) / a (gravity) 1087/9.81 = 110,8 Kg not pounds

@midnightnotracer

6 жыл бұрын

LMAO COPY AND PASTE

@m8inho

6 жыл бұрын

thanks for saving a google search

@animatedmeat6986

6 жыл бұрын

labobo, that’s basic fucking math dude.

6 жыл бұрын

Justlike Thomas Also, Autistic person detected!

@animatedmeat6986

6 жыл бұрын

labobo. Yeah, obviously I’m the triggered one.

Well done. My brothers' 1st year was 2001 his group won their year with 103kg and a simple design level span off center loading point. I was 1st year in 2005 and my group won our year with 114kg (I remember this as it was Jonah Lomu's weight) we had much more difficult parameters, similar to yours. uneven span, off center loading point and had to allow for a pipe to fit the truss and a certain point. I still have my truss in my office, it failed at the upper landing.

of course i get this on my recommended after i have a bridge building competition

If it is a mini structural bridge . The load should be placed above? Then tensions in the sticks vary a lot

@sggirbsonly6554

6 жыл бұрын

Doesn’t matter the amount of force is the same due to gravity

@Bobby14221234

6 жыл бұрын

The members act as one really well done. It failed on shaft area and the rest of the member follows . If it was reinforced on shaft holder it will probably take all the the weights available in class. All credit to the group.

its 2019...is there an Actual Bridge of this Design?

@mid1chosen

5 жыл бұрын

I think it's not good for sea link purposes becoz there is too much structure beneath the road level .

Well done guys!

We did a similar project in high school physics... you received 1 Manila folder and were told to span a set gap. (I think it was 9 inches). Had to be an A frame type with a centered load. Smart folks used different glues, one even used hollow tubes and filled with hot glue. Meanwhile i honeycombed my main struts and carried twice as much weight as the solid strut with 1/5 the weight

@comit8077

3 жыл бұрын

Damn

This is real life Poly Bridge right here

I wish more schools did this. Too many of the "top" universities focus completely on analytical work.

That was amazing well done people :)

the bridge folded in several location, this is a good sign that the distribution of the tension was fairly good. It would be even better if the bridge literally exploded everywhere at the same time, meaning that all the efforts were all over the place, evenly. when I did this exercice back then (with spaghetti), we used 2 buckets of water and poor in from one to the other gently, then weight the bucket after the bridge breaks. Seems more convenient than the loads you are using. good show, loved it. Thanks.

@RooiWillie

5 жыл бұрын

I enjoyed it too! From what I can see, the joint failed. It would be interesting to see how the bridge holds up if the joint could be a single piece of cnc'd aluminum. But then again, the connection to the internal member may be the next point of failure due to the shear value of the bolt in the Popsicle stick. The pre-stressing of the bridge is a clever idea!