So glad this video still exists, after the Swinging Bridge doesn't exactly swing anymore. Just used it to teach the concept of resonance on bridges/why Tacoma Narrows didn't work to my 6th graders! :)
For a long time Tacoma Narrows was thought to have fallen due to resonance, now it’s thought it was due to aero-elastic flutter (hence the torsion motion in the deck before collapse and the build up of momentum energy). And yes, you can teach this stuff to kids of any age, and I do! 😂
At 1:40 on the middle left it is showing signs of destruction. Well, to do that is very easy. After doing that , they should have taken with them a number of lengths of rope and tie them in locations where that bridge will not oscillate. Basically any structure which have its compression or tension elements in the form of a square or a parallelogram, it can change it shape through forcing the diagonal to change length.
Calm down guys, I bet it was made for educational purposes. This is harmonic waves, this illustrates resonance phenomenon, that is what mechanical and structural engineers learn:)
I wonder if a cruise ships dampening system, that reacts to cancel out sway, could be used to eliminate bridge sway issues? Water tanks on either side of a section of bridge could work passively or actively. We'd need to treat the bridge as if it had several sections with a dampening system for each one. Perhaps all the tanks could be linked together so the water weight is shared and could be redistributed as needed? The presence of water ballast tanks on a bridge section would already provide some dampening of vibration as it would simply be absorbed by the water inside the tanks. But once sway was introduced the water would resist that sway while an active gyroscopic system could respond faster and more precisely.
I did this on a cable car in Switzerland way off the ground and the other people inside were absolutely horrified (they thought it was amusing at first) till the cable started whipping back and forth. 😅
El profesor, en el minuto 4:51 pega un brinco del carajo y nadie lo está viendo y luego se pira como dolorido, ese hombre está bien? nadie le ha atendido o algo?
to make sure that every one of your people. Like to build Bridge like the internet but not going to repeat itself in the future again that's the way that it goes like this walking and David replica just like the same one and sometimes could be made out of plastic cable aluminum Steel because they want to test it first and then how he acts and then younger people are to understand and then one day it will be and then if you are a engineer Builder and then one day that one of your properties will be a landmark of History anywhere I wander world
Nobody designs bridges to resonate. Normally there is a warning sign next to the bridge warning public not to try deliberately producing forced oscillations. But maybe this was a bridge in college park intentionally put there to educate students.
These other posters are right considering this bridge is in a park next to a college it's demonstrate resonance frequencies And towards the end the guy with the jacket and tie is probably their professor
Nobody builds bridges this large to serve as an educational device. The bridge was built so people could cross the effing river. I would have laughed if these idiots ended up in the water.
I am a structural engineer and I was not expecting to find exactly what I was looking for.
This is what ppl did before video games.
U think gamers don't do stuff like this?
Ruscfaer tenrow yes
@@bluestar99playz11 why
This is what poor people do 😂
🤣🤣
So glad this video still exists, after the Swinging Bridge doesn't exactly swing anymore. Just used it to teach the concept of resonance on bridges/why Tacoma Narrows didn't work to my 6th graders! :)
+Christa Cohen You teach them about flutter instability in 6th grade?
For a long time Tacoma Narrows was thought to have fallen due to resonance, now it’s thought it was due to aero-elastic flutter (hence the torsion motion in the deck before collapse and the build up of momentum energy). And yes, you can teach this stuff to kids of any age, and I do! 😂
@@lauraf4202it's pretty complicated though, with all the interacting phenomena. I guess you could teach flutter by a model of some kind?
when normal people see bridges: *walks*
when physicists see bridges:
Thumbs up if you were sent here as part of studying for a Physics class.
im not , but i am just passionate about it even if i dont fully understand it , there is a certain attraction to it
@@clementwolf4081 it’s because the resonant frequency of brigade matches the frequency produced by them
THUMBS DOWN
This video combines science and vandalism, I like it. :D
@Bombing Playground
vandalism
/ˈvand(ə)lɪz(ə)m/
Action involving deliberate destruction of or damage to public or private property.
@@gabrielhacecosas I think nor of that happened.
@@rolandlibor892you think this is good for the brifge?
We have this new bridge we just built and we need some humans to test it out. I need you, you, and you three to come with me.
At 1:40 on the middle left it is showing signs of destruction.
Well, to do that is very easy. After doing that , they should have taken with them a number of lengths of rope and tie them in locations where that bridge will not oscillate. Basically any structure which have its compression or tension elements in the form of a square or a parallelogram, it can change it shape through forcing the diagonal to change length.
Engineer unintentionally built an adult playground feature.
Varaxis Oh I think this is actually what the engineer had in mind
They're breaking the damn bridge though!
Look up "bridge resonance" then you'll understand
It depends on how many people on the bridge doing the same.
@@rensseak or how long as well. As time progresses, so does speed.
Its for science
No. It's designed to take it.
Its all fun and games until the bridge falls apart. =)
i can just imagine us on the side watching there "this is going to be fun , aint it?"
Calm down guys, I bet it was made for educational purposes. This is harmonic waves, this illustrates resonance phenomenon, that is what mechanical and structural engineers learn:)
3:55 that aaah ! had me dying ! lol
That’s a strong bridge!!
I wonder if a cruise ships dampening system, that reacts to cancel out sway, could be used to eliminate bridge sway issues? Water tanks on either side of a section of bridge could work passively or actively.
We'd need to treat the bridge as if it had several sections with a dampening system for each one. Perhaps all the tanks could be linked together so the water weight is shared and could be redistributed as needed?
The presence of water ballast tanks on a bridge section would already provide some dampening of vibration as it would simply be absorbed by the water inside the tanks. But once sway was introduced the water would resist that sway while an active gyroscopic system could respond faster and more precisely.
where is this bridge? I wanna do a pilgrimage to that place
Those people have a lot of faith in their bridge.
Wow! The amount of scientific awesomness can barely be described ;D
Wo (welchen Land und Ort) ist die Resonan Brücke, die wir spielen? Gibt es auch in Deutschland? Es sieht so aus wie ein Spielplatz.
My teacher show this to our class but we can't stop laughing
Get off, you guysl - Tacoma Narrows!
Samir, you're breaking the bridge!
Hi Bob, Where is this bridge ? I wanna go with my acoustic's students :)
I did this on a cable car in Switzerland way off the ground and the other people inside were absolutely horrified (they thought it was amusing at first) till the cable started whipping back and forth. 😅
Where is this bridge :(
3:00am UA-cam everyone
Ling Ling's Father yeah literally don’t now how I got here and it’s middle of the night
2:40 likes tacoma narrows bridge!
I hope this bridge was built specifically for engineering students.
Is this really a harmonic test or a load-bearing tedt?
Great 80's VHS stuff here. Could have ended more like Tacony Narrows
Physics would have been a lot more fun if i had seen this video then
And this is the stuff kids and teenagers use to do before World of Warcraft got released? Pfffffffft
This bridge is for learning purpose or what?
Most likely, and ya know crossing the creek as well
This is a great way a visualizing how a marimba bar works...
Everybody gangsta until the bridge falls apart
They may collapse the suspension bridge
I-have-to-watch-this-for-school-Gang
This is how ppl destroy many strong bridges all across the world.
i can't wait to try this.
Where is this?
Che bello! Mi ricorda la mia Vieste! Bellissimo
Is there a dog in this video?
The things I could gave accomplished in the last 5 minutes and 1 second if I hadn't stop for a look
El profesor, en el minuto 4:51 pega un brinco del carajo y nadie lo está viendo y luego se pira como dolorido, ese hombre está bien? nadie le ha atendido o algo?
I have got to build me one of those!!
Great Video
There used to be a bridge.
And don't forget that his video was $16.
Eso si es un puente de verdad!
This looks fun 😂
Now I'm studying resonance bridge 😐 after 10 years we see it 😂
I'm afraid to watch to the end knowing harmonics can break a bridge! (Whew, it's ok.)
good video 👍👍👍
i luv dis scene 2:38
Meanwhile bridge: wht the heck is wrong with u peoples.
They’re not going to be happy until they break it.
Sad that Morbi Bridge Gujarat india collapsed killing 150 people
Keep it wild!
What has this achieved??? After breaking the bridge, students will understand structural integrity.
to make sure that every one of your people. Like to build Bridge like the internet but not going to repeat itself in the future again that's the way that it goes like this walking and David replica just like the same one and sometimes could be made out of plastic cable aluminum Steel because they want to test it first and then how he acts and then younger people are to understand and then one day it will be and then if you are a engineer Builder and then one day that one of your properties will be a landmark of History anywhere I wander world
Oh well, I guess the worst that can happen is they all get wet.
I hope everybody can swim . . .
Giving massage to bridge.
Top video son
笑ったわ
Messiah College is a hardcore Christian school. So that's what they do there...
Aliens be like: these monkeys! 🤦♂️
that things gonna break
Круто👍👍👍👍
What are they doing destroying it
It's resonance, and the bridge was probably designed to do that
RESONANCE!
Ten kto ma to na fizyce na zdalnych to POZDRO ;)
pozdro byq
একটা লিমিট আছে !
Swing bridge!
The 6th harmonic is the "Useless Idiot Harmonic"..............
why am i watching this
They have only that to do.
If this is a real public bridge, then they are endangering their own safety and damaging the bridge, which is immoral.
+Zhang Harry It was designed to resonate at certain frequencies. I doubt the people who built it would do that unless they wanted this.
Nobody designs bridges to resonate. Normally there is a warning sign next to the bridge warning public not to try deliberately producing forced oscillations. But maybe this was a bridge in college park intentionally put there to educate students.
Zhang Harry but it’s for science!
These other posters are right considering this bridge is in a park next to a college it's demonstrate resonance frequencies And towards the end the guy with the jacket and tie is probably their professor
God saved those people that the bridge didn't collapse.
haha this was so funny
break it
that bridge is going to brake omg its over
Resonance, my friend
pozdro 2h
looks likes thats their version of getting shwifty in here.
:D
кошмар!)
Nobody builds bridges this large to serve as an educational device. The bridge was built so people could cross the effing river. I would have laughed if these idiots ended up in the water.
Умно
ne çok aptal insan var.
jamais vu des gens aussi idiots et dangereux peu respectueux et inconscients
Obviously vandalism is a big thing with you people.
How is this vandalism? The bridge was obviously made to do this