OFFICIAL: World's 2nd Strongest Paper Bridge

[SuperPinky678]

hahahahahahahahahahahahahahaha­hahahahahahahahahahahaha



[nelrish24]

unbelievable paper bridge

[kylejc141414]

PEEEEEEEENNNNNNNNNNNNIIIIIIIII­IIIIIISSSSSSSSSSSSSS!!!!!!!!!!­!

[timedstroyer]

... thats paper? like a4?

[chickenpoper]

Can you please give me design by Friday please? I need it for science club bridge strength test. I promise I will give you credit for your design.

[DeathToPhantom]

.....wow....



[Snowiethebunny]

what would he do if the wood broke but the bridge was still standing?

[NHLbamboon]

haha time to use this model for my physics project :)

[VEC7ORlt]

Damn, half a ton. I want my kids to have competitions like this at school.

[CrashingThunder]

LAWL. The hook broke first xD

[Whateverworksforyt]

holy shit that hook thing was halarious i can't believe the bridge didn't break!

[the3chosenone]

if that brige that small can hold half a tone then why isnt all brigest in the world made from paper lol?

[GuanacoCatracho]

@the3chosenone because they would fuck up when it rains

[cpljv]

@the3chosenone hahahaha

[GuitarSK8boarding]

@the3chosenone I would expect such a stupid question from someone with no ability to spell or use grammar. "why isnt all" "brigest"

[the3chosenone]

@GuitarSK8boarding It was suppose to be a joke. You take things way to serums in your life. It's youtube not every thing needs to be spelled right.

[Drake3498]

wdf....

[JackBlackASA]

hmmm... he sed 1030 lbs and thats for sure, but i guess the weight of the chains and platform also count

[90210jn]

so 1000pounds or my fat ass teacher?

[traceurValtR]

uh... 1041? didn't the guy say 1030 pounds?

[budgiebreder]

the platform must weigh 11 pounds? idk just a guess but we were never told how much the platform and hook weigh. you have to remember it is holding them up as well =)

[noobpwnerful]

no lol 1.1 not 11 :D

[cutiepie5502]

omg how did you get it so strong?

[budgiebreder]

design. it's not about the material as much as the design. using shaped like triangles makes it stronger.

[tubeuser147]

where's the world's 1st strongest paper bridge?

[jserna23]

lol

[spacehydraX16]

Mr Arnett is annoying

[MantirayFromSpace]

GITCHS GOO PLOOK

English translation:I like unicorns shuving their horns up my butthole

[mjp13rockon]

wow the guy can't talk

[b4basketball14]

omg what a fail it couldn;t even hold up me!!! no jk

[JamisonProject]

It bent because it wasn't strong enough.. he is a GENIOUS!!!

My cereal dissapears because i am hungry-now im on to something

[Dumbdude1994]

2:33 haha

[BigG507]

hahahahaha 6:25-6:31 he sounds like bush hahaha

[isuxusux]

LOL.. s my c fillipin069!

[Dane333]

Im flilipino Too

[Fillipin069]

OMG ITS MR ARNETT!!!

[Dane333]

I did mr arnett

[NorwegianxD]

I made a very little bridge and it only took 7 kg xD

[corndog5595]

pretty cool..but in my school (middle school) we have an assignment to build a bridge out of only oaktag paper, and clear tape. the winning bridge held 564 lbs. we had specs to follow too. it had to be 10cm high, and could only weigh 35g. i dont remember the length and width, but they werent big at all.

[joel1st]

If it held 564lbs and could only weigh 35g, the winning team have smashed that video, if it was to be in proportion.

[diana2807]

when we built this we were not allowed to use glue..

[alexpagoy]

sorry guys but the bridge is not workabe in actual prastice because your go na need a lot of paper to built a brige bridge and paper came from trees and cutting trees can lead to global warming. try to find other alternative guys.

[moqca]

Woow youre a fucking moron.

These contest arent held to build paper bridges you dumbfuck, theyre used to test the durability of structural designs and viability trough weight to resistance ratio. And who the fuck would want to build a paper bridge? Man you should suicide

[fitimio001]

I agree.

[MissMonicaJay]

It's a project that the physics classes have to do every year...

[Dane333]

Fuck You

[philum5]

HHAAAAAAAAHAHAH. dont worry i got the joke lol.

well done thats quite funny.

[XcherryXcoolX]

cool ^.^

[iamfumanchu]

Very impressive. You guys will build excellent bridges for the future.

[iaggrey41]

9:45 - My hand holding my member.

9:47 - Member close-up.

Just ask for my autograph. =)

[dnrncn]

does anyone know what kind of glue overton used inside his members

also, has anyone tried hot glue for tension since it seems rather flexible

[tmxelmotmx]

nice my sis might know u she has to make one to

[teh0pwner]

One of my friends, bought over a 100 dollars worth of Epoxy from Home Depot and literally soaked her papers in Glue before rolling it up, then she weighed it, and it was well over 5 lbs already, so she wasted all that money

[superkiller2009]

who did? kevin?

[teh0pwner]

What did Greg use as his base?

[Ohnodiwu]

Greg Overton = Beast

[servemonster]

I was wondering how to attach members that are cylinders. My cylinders are cut at angles so that they can fit together, but glue is not going to hold them together very well. Also, the way they are cut is not very precise. Am I supposed to use tape? I am just afraid that I am going to exceed the tape limit.

[higgrobot]

No you fools, Scissors beats Paper everytime :)

[PlanoSarah]

We had a girl who's bridge held 810lb after it broke the hook the first time. Which is pretty good since it was the actually test during class when it was due, not something she built after seeing where/how the design would fail. ;)

But this bridge is still pretty amazing.

[servemonster]

Hi, I am working on this Physics project. My screen name does not work, so I was wondering if you can give me your email address. Also, are you still doing the parties on Fridays during the Winter Break?

[jaykaykayjay]

hahaah nvm i can jsut talk to you through here but i really need help

[jaykaykayjay]

hey so im about to start this project also, what kind of glue should i get and hw do i roll the paper really tight. i am thinking aboutgoing to that tutorial thing but i prolly should start before friday. do you have a facebook r somthing i could more info from? thanks!

[UXBXx]

ive been using glue stick and its been working well. i heard wood glue works well but whatever you do dont use gorilla glue. alot of people will say its good but its really not

[UXBXx]

oh shit thats plano and im about to start this project haha

[numbah1hero990]

oh i was trying to build one out of newspaper for my

physics class whats the best way. should i just roll and tape or

use some type of glue and what type of glue do u think is

best

[catalina920]

How did you make and reinforce the roadway of the bridge?

[Jcbryant123]

i read threw all of your comments, and got the proper glue and all the materials needed, but how did you roll up your paper tight enough. im using newspaper to build my bridge,so that may be a difference, but any help would be appreciated

[lilkuv08]

u cheated u bastard

[Mattersmatter]

nope. his dad is a great guy, no bastards here. plus, there was no cheating involved.

[icedrake1313]

hey sorry to bother you again,but i heard about a technique where you soak the paper in water to make it stronger. any insights?

[Strayangelxdemon]

(sorry about that, friend's brother was playing around. I didnt mean to be rude)

[Mattersmatter]

water causes the paper fibers to separate, making the paper expand, thus pulling the fibers apart. no. water is very bad news.

[icedrake1313]

hi ive been using the roll glue and lamination techniques but the glue (contact cement) wont dry or harden. do you know what went wrong and should i use some other glue?

[Mattersmatter]

contact cement? That's a pretty generic catagory...you'll have to be more specific. Remeber however, that I mentioned using a glue that SATURATES through the paper for everything except joints, and to use a flexible glue for tension members.

i.e. : use somekind of cyanoacrylate based glue for roll glueing the compression members, and use somekind of water-based for tension member lamination

[Mattersmatter]

elmers white glue takes forever but works well for laminating the tension members

[Thugz4Real]

wow. i didn't know u were doing what your vid description says! interesting. (my newspaper bridge held around 270lbs last year)

[littlewhitelily]

I don't understand what the simulation numbers mean. help!

[Mattersmatter]

the simulation numbers are relative percentages of the total force load

[littlewhitelily]

how does the simulation for the bridge help? what do the numbers forthe compession and tension forces mean?

[Mattersmatter]

go back to vector math to figure out the optimal angles

[puckplay22]

How do you stiffen the deck? What kind of reinforcement goes around the bolt hole? TIA!

[Mattersmatter]

If you watch the video carefully, you will see two large 1" dia. tubes running perpendicular to the span, ontop of which the "mounting block" from which the hook is suspended sits. These tubes are suspended by the tensio0n members, as if to make a "cradle".

[MaFire2]

thank you for all the help on the bridge! unbelievable a bridge can withstand this much weight

[mattman00000]

How did you reinforce the loading zone?

[airaspect0]

How do you create the tension members?

[Mattersmatter]

see the comments below...

[loveGGD3]

i'm planning my bridge project now.. what would be the most efficient measurements of the horizontal length and vertical length of the bridge? and when you do the simulation, how do you know if the calculations are good or not?

[Mattersmatter]

well obviously nothing can be done about the length (span) of the bridge because that value is fixed (50cm). The total length of the bridge should be less than 53cm. Width = twist stability; the wider the bridge is, the more it will resist tortion which can lead to sheer forces kinking, bending, or breaking your compression members.

[Mattersmatter]

Don't go more than 15cm in total width; I would try to stay around 9-12cm. Height should be maximized; try to get the height as close as possible to 30cm. Greg's and mine were both 29.96cm tall. I am not Mr. Arnett

[teh0pwner]

are u mr arneet

[Thugz4Real]

lol

[xist3nc3]

i heard that the simulation of gravity kills is wrong when it comes to the tension members at the road part of the bridge, and that the were somehow both compression and tension? could you give me some pointers?

[Mattersmatter]

you heard wrong, the horizontal tension members experience no compression under the proper loading. The simulation is ideal, you just need to learn how to use it properly

[Strayangelxdemon]

Hi im working on the bridge project now

and i was wondering how he connected the cylidrical members

[Mattersmatter]

that part is absolutely critical. he cut the cylinders using a miter saw and a table saw with a very fine toothed blade, such as one that could be used for birch wood. he then glued the exposed surface areas of each peice togehter with a very strong epoxy (J&B weld)

[g165152]

I have to do this project this year for physics and i have to quesions i deperaley need help with. first how do you fold/roll the paper in order for it to reach it's strongest point or best thickness. second did he use newspaper or printer paper because i have to use news paper

[Mattersmatter]

News paper is a different material entirely from laser paper. news paper is very porous and has highly separated fibers. This reduces its tensile strength but also makes it much thinner and less dense (lighter in weight). Meaning you can/need to use more of it than laser paper.

[Mattersmatter]

for the tension members rolling is highly unneccessary and actually reduces strength. folding is also no good because creasing the paper causes the fibers to separate and break, causing a pre-stressed point (weak point).

[Mattersmatter]

For the tension members the best technique is to layer strips of paper and 'laminate' them with glue. Staggering them also helps. News paper is difficult because it is so brittle when wet. Don't use any water based glue. (elmers/wood glue/ect). the advantage of news paper vs. white paper is that news paper comes in bigger sheets; allowing for large, seemless parts.

[Mattersmatter]

The best technique for the tension members is pre-stressing them. Cylinders or "tubes" are the best choice for geometry, and rolling seems to be the best method. Take an entire sheet of news paper (or maybe cut it in half) but only 1 layer thick, and tape it on its edge to somekind of bar (I used a 1/2" cold-rolled steel bar).

[xLinxLinx]

Do you mean the Compression members, because in the post above this post, you said tension members should be laminated like the "ribbons" in his bridge, correct? You are saying the compression members should be rolled?

[Mattersmatter]

precisely. Tension = flat pulling force (a 2 dimensional planar force). Compression = full sqeezing force (a 3D trimodal vector force). The only need for using tubes is that under compression, there is a lower tendency for shear forces to occur versus other geometrys.

[Mattersmatter]

roll the paper 1 time around the bar and then put a bead line of glue all the way across the length of the bar. put your entire body weight (atleast 100 lbs) on the bar and roll it (compressing and evening out the glue at the same time. keep rolling until the paper is dry (and needs more glue), then repeat, remember to keep the pressure on the bar constant (never let of until it is done).

[Mattersmatter]

Once the first sheet has been rollglued all the way around the bar, tape another peice to the end of the rolled up peice and continue until the desired thickness is aquired.

[speeedskater]

very cool!!

[stormsoccer015]

i go to that highschool lol

[reptilian777]

ok lol ok lol

[Seano171]

Cool!(H)

[TehKang]

1,030 not 1,041 but impressive nontheless

[Mattersmatter]

the wooden platform and chains weigh 11Lbs.  11+1030=1041.

[TehKang]

ah ok. my bad

[dagonra]

I was wondering what kind of glue was used? and how much (estimate)?

[Mattersmatter]

He went through 4-5 2oz bottles of super-viscous high cyano-acrilate content super glue, purchased at "Plano RC Hobby". Along with a single purchase of J&B weld, the newest version, to hold the joints together. there are however, countless substitues and alternatives. The key is to remember to get a glue that saturates through all of the paper, while not weighing very much, and a different type of glue for the joints. (usually somekind of resin or epoxy).

[redsully]

Wow... ya'll remind me of my days goofing off in Physics in high school. Great memories.

[reptilian777]

3- Is anyone in the world ever going to make a bridge out of paper?

4- (my intelligent response) You said that paper would be stronger then steel if if was at -"insert mathematical terms meaning 'the maximum phisical (some word i cant think of)' "-

but what if steel was at its 'maximum physical (same word that i still cant think of'?

[Mattersmatter]

um, i'm really sorry buddy but i have no clue what u r trying to say?!!?!??! and there are 4 people because the weights need to be placed at the same time on each of the 4 corners so that the weight does not unbalance the rig (tilt it) which might cause uneven force or could cause the weights to slid off of a person. And trust me, you would not enjoy over 100 10lb weights all over you in a big pile all of the sudden (OW!).

[reptilian777]

1- Did you see the guy in the green shirt, in the back. at the time of bridge flying?...look!

2-Why do you need 4 people to add on the weights, 2 could do, lol

[Mattersmatter]

This is being reviewed by Guinness world records. it is officially the US record however.

[Auriex]

That is awesome.  This is why physicists have more fun.

[111sparda111]

this is your version of fun? :S

[spikdboy]

intense

[plot000000]

that's awesome.

[Mattersmatter]

please comment on this video!!!

[Mattersmatter]

Student researchers have not been able to locate any instance of this project or similar projects anywhere, making this the unconfirmed world record.

[Mattersmatter]

The bridge, which is part of a project that all PISD physics students must do, was the second one Greg had built. The first bridge was part of the actual competition/project and held 751Lbs. while another student and Greg's best friend, Matthew Brenner came in second place with a bridge that held 761Lbs, and the winning bridge held 791Lbs. But being a very competitively-minded and mechanically adept young man, Greg just had to beat the record and realized he could do so.

[Mattersmatter]

This time two hook bolts were used along with an extra piece of steel chain. This time the testing rig almost failed again (the loading zone cracked), but not before the bridge did at a whopping 1,041Lbs. Some students jokingly commented that Greg should change his last name from Overton to Overhafaton (Over-half-a-ton).

[Mattersmatter]

Upon retrieving and examining the bridge that actually flew through the air a distance of almost 4 feet from the tables it was realized that the bridge had indeed not broken and it was found out that the ¼" thick stainless-steel hook bolt had bent open and the chain had slid off. The teachers didn't stop there however; the bridge HAD to be destroyed!

[Mattersmatter]

10Lb weights were then added to the loading zone carefully, slowly increasing the force of the bridge. At 950Lbs a loud crack was heard and everyone (including Greg and those watching a school-wide broadcast of the event on closed-circuit TV) assumed that the bridge had broken, leaving Greg in a state of dismay that his bridge had come so close to his goal of 1000Lbs.

[Mattersmatter]

Greg Overton , a student at Plano West Senior High school, proved that with the proper application of forces, paper can be stronger than steel. The feat was accomplished by constructing a simple warren truss bridge entirely out of white laser paper and glue. During testing, the bridge was placed across a span of 50cm with a steel bolt assembly connected through the center of the road-way which suspended the loading zone (a piece of plywood that weights are placed on top of) from the bridge.