Why doesn’t the Leaning Tower of Pisa fall over? - Alex Gendler
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- Опубликовано: 28 сен 2024
- Dig into the 800 year history and architecture of the Leaning Tower of Pisa and find out what gives the tower its infamous tilt.
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In 1990, the Italian government enlisted top engineers to stabilize Pisa’s famous Leaning Tower. There’d been many attempts during its 800 year history, but computer models revealed the urgency of their situation. The tower would topple if it reached an angle of 5.44 degrees- and it was currently leaning at 5.5. What gives the tower its infamous tilt? Alex Gendler explores the monument's history.
Lesson by Alex Gendler, directed by Aim Creative Studios.
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"Don't pointless things have a place, too, in this far-from perfect world?"
I really felt that
Me too.
Yep that’s why I’m here
That hit home hard
Nothing has a place. Nothing is permanent.
Simple as.
"Having a place" is a really self entitled way of thinking.
You make your own place, but you do not own it.
@@RBsRealm So i dont own minecraft right?
It isn't falling because there's too many people posing holding it up
Merfolk ikr
omg lmaooo
Lmao
They are lending their strength
@chocolate dip 100 million germs are too small, you mean about 100 decillion germs?
Italian government : Stabilise the leaning Tower of Pisa or it'll fall at 5.44°
Pisa at 5.5° : Hold my tower
Hold my lean
If it can
*Clap*
Can I hold it
Rupa Choun “that’s what she said” - every middle schooler ever
It's also worth mentioning that the Tower of Pisa had survived four strong earthquakes during its time, thanks to the very same soil foundations that caused the tilt.
So no one is going to talk how it did not fall for nearly 6 centuries with poor fixes while they give it 300 more years with proper fixes???
@@kozodoev no that couldn't be more off. They didn't fix it that's the point they even made it worse over and over again and the tower didn't fall. and now they properly fixed it and they gave it 300 years? 😂
@@kozodoev I'm afraid that you are the one who is not getting it. Please re read our conversation. The argument of the grandmother is out of this context because in that case from infant she would have back problems, and all the solutions from the doctors worsen her condition. The same with the tower. All these years they made the problem worse and worse and the tower didn't fall. At the 90's where they actually fixed it, they gave it only 300 years. How does that even sound logical to you? It's like the tower hasn't stood up by itself for over 600 years. And the only good fix gives only 300? That's my whole point.
@@kozodoev 😂Aww It's ok pal you just didn't understand simple explanations. I don't feel sad about your response. Have a great one.
@@mar__k are you for real??
everyone: "stop!! touching!!! the tower!!!! or else it'll fall!!!"
engineers: "okay but we have a new idea.."
Elena Nicollin engineers: “I mean I could but why would I want to?”
300 years later:
*Ah sh**, here we go again"
CarbOnl y Yup
make it lean the other way to spice things up in 300 years :P
500th like
@@J040PL7 lol
Tony: let's fix it just enough so they will keep coming back.
how on earth is this the first time that i considered that it wasn't supposed to be leaning jsjdhdhd
Me too. I think somewhere in my time growing up, I heard stories like the tower was intentionally built a bit leaning to test some physics theories involving gravity.
That's exactly what I felt after watching the video.
Darian I think there's a myth that someone (like Isaac Newton or something) dropped things off it to test his theory that all things fall at the same rate, regardless of weight. (There are many problems with that myth.)
@@NoriMori1992 the legend is about Galileo who first theorized that two different weights would fall at the same speed in the void, disproving the Aristotelian theory that every object falls according to its weight.
It is, of course, a legend but it has been reenacted by the university of Pisa (video in Italian) ruclips.net/video/sQGvSUWRoqw/видео.html
😮
As an engineer, in constructions that people's lives will be in danger when something goes wrong,
we always calculate the "limits" until the accident occurs with a safety factor.
Meaning that when the calculations say it is 5.44, they include the safety factor.
The real number for the accident to occur may be 6 but we will never go that far since we always calculate with this.
Unless they were asked specifically to determine when the tower will actually fall. In my PhD dynamics course, we add a factor of safety when designing something commercially, but we don't have any factor of safety if we're trying to see the actual limits of something. Sometimes knowing the breaking or fracturing point, rather than just the commercial limit, is important.
I also work with superconductors and when we talk about the temperature the material will fail at, we normally talk about the maximum temperature, and other factors can make it fail before the temperature we measure.
So no, engineers don't always add a factor of safety. It depends on what you're trying to answer.
@@nanochic As I explained,
“In constructions that people’s lives will be in danger”. That’s when the safety factor is lower than the actual breaking point. If a material will break at 6 per say, we will calculate the construction with a much lower number for safety purposes.
@@nanochic i agreed with u
@@nanochic Yeah you have a valid point, they were asked when it will fall and it's not about construction. Good job.
There's always something to learn.
true
Where's Chipping
There's always something to lean.
FTFY
@@philipauken5391 wow!! There is always something to lean .
I want to like this comment but I don’t want to ruin the look of 150 likes
"if anyone knows how to turn a disaster into a tourist attraction, it's Italians" - Trevor Noah
So did the Germans. In fact they've made two major disasters a tourist attraction for lots of countries.
@@thepencilcunts Which were those again?
@@abthedragon4921 Something about wars or something? Idduno I passed out around the 1900s.
The Pencil Cunts Are you talking about concentration camps?
@@NoriMori1992 🙊
"And when the storm is over,you
Won't remember how you made it
Through how you managed to
Survive, you won't even be sure
Whether the storm is really over."
"But one thing is certain,when
You come out of the storm, you
Won't be the same person who
Walked in.That's what this
Storm's all about."
Another great quote by Haruki Murakami.His works are very deep and intriguing.
JUST LOVE IT!
*Michael Jackson:* _I'm the only one who can lean in 45 degrees._
*Leaning Tower Of Pisa:* ｐｉｚｚａ ｔｉｍｅ
Eh?
You mean Muzan Kibutsuji?
@@KyoushaPumpItUp that hit right into my heart....
"you get your -rent- pizza when you fix this damn -door- tower.", Pizza Parker
Pizza time pizza not a cult.
"As a monument to the beauty of imperfections." Great quote as always..
3:48 Ah yes, they just clicked "rotate" in MS Paint and the problem was solved.
Except in MS Paint you can only rotate by multiples of 90 degrees xD
That was the engineering accomplishment they were missing.
Pls tell me what is your cursed profile pic
@@1david1r47 Ok so this is the girl in the bass boosted version of the music video of Ed Sheeran's Shape of You
A.Y ok thanks
The interesting thing is, if this didn't happen, modern science probably wouldn't have known the importance of soil in construction. It has handed us a vital lesson
I love TED-ed videos! I've learnt a lot! Thank you!!! They not only help widen my English vocabs but also provide a lot of knowledge!
Kinda funny how they basically fumbled their way to one of the coolest and weirdest structures that we've ever made, goes to show you that mistakes aren't always a bad thing and I hope it's a lesson that kids will learn from this video.
2019: Why doesn’t the Leaning Tower of Pisa fall over?
2319: Why does the Leaning Tower of Pisa fall over?
2019: Why doesn’t the Leaning Tower of Pisa fall over?
2039: Why did the Leaning Tower fall over?
After 309 years you will get more likes!
Don't you think they will again fix it then
@@pargatsingh5261 ?
Ahh that's quite a prediction.
The art is amazing in this video. Keep it up ted ed artists :)
I remember back in 1948 my family fished Lake Winnipeg, in an old wooden boat we had to paddle it with home made paddles.And if we got thirsty we would just scoop up water with an old tin and drink.On stormy days we had to paddle to the nearest shore and build a temp shelter one night we had to go to shore, it was raining we drank rain water and ate raw fish that we caught.
I always thought tower of pisa was made with 'imperfection' intention, never knew because the soil it got leaning
You have alot of growing up left to do kid
@@evilpimp2475 hm.. how old are you to call me kid?
Me too. I don’t blame you, this isn’t like essential knowledge like who was president during 9/11.
I've had that same thought too!
Wait, I read in my history book that the guy who inspected it had one leg shorter than the other and so he though it was straight when it was not, My life was a lie..........
So no one is going to talk how it did not fall for nearly 6 centuries with poor fixes while they give it 300 more years with proper fixes???
1:19 Moment of appreciation for the slice of fossilized pizza
Good eye
Mamma mia
Prehistoric Pizzalopod
It’s strange to think that if the ground wasn’t marshy, then we would just have the Tower Of Pisa
I named one of my cactus after the tower. I’ve always wondered what the story was behind it! Love the vid
Henry Rincavage Is the cactus stable??
you name your plants? do they react when you call them (like dogs) or do they ignore you (like cats)?
Plants tilt to face the sun. To keep your cactuses straight rotate them 90° every time you water them
AJEET SINGH He has some supporting cactus orbs on the left that keep him up!
mikelor84 they very much ignore me unfortunately. But I’m more of a cat person anyway!
*Leaning tower of Pisa* : can lean 5.5°
*Micheal Jackson* : Hold my beer!
The music, animations, and perfect narration makes this video and this channel simply amazing.
As a matter of fact, I am indeed interested in architecture and engineering (I might have pursued those fields if I'd been better at math), and I have opened both the suggested videos in separate tabs to watch later. Thank you very much!
2:03 Nobody:
The builder of the tiny structure: *casually smiling as his structure topples*
"Don't pointless things have a place, too, in this far-from-perfect world?"
What a perfect quote 👷👷
It's holding on for dear life, because it doesn't want to become the "I-fell tower".
3:56, The irony is that the engineers trying to fix the tower of pisa while eating the Pizza
@Cooper r/woooosh it is a joke
@Cooper leaning tower of pizza
Don't use words if you don't know what they mean. Do you even know what irony means?
@@hittingyouoverthehead yeah exactly
@@hittingyouoverthehead THANK YOU!
Great video, taught me alot about this monumental tower👍🏽tower of pisa
Damn, engineers are using Jenga to solve real-word problems. I learnt something new today
4:17 lmao the leaf fell off and his ween got exposed
haha i noticed that too
*_B a n n e d_*
I bet he's single.
It's teeny weeny
No d at all
The best thing about the ted ed videos are the quotes in the starting.
You guys need to make podcasts of storytelling. I love listening to it while sleep.
Fun Fact: Fibonacci lived near the Straight Up Tower of Pisa. He developed his series when the tower started leaning. Did the rabbits he was studying burrow under the tower to make the soil unstable?
i looooove the music in the background! it's so mysterious and beautiful
Thank you! soundcloud.com/aim-music/tower-of-pisa-ted-ed
The thing that made me watch the whole video was that quote of Murakami.....
No images of the tower or did I miss something. Now I have to google this because I am hooked. “Thanks ted”
Animator deserves a raise for those transitions
I love how this bell tower was important enough to them that a century hiatus didn't stop them from finishing it. Is there anything like that these days?
The Washington monument.
i love how well this is animated
Great, more interestingly I like the background music.
Same! Does anyone know the name of the piece bc I'd like to listen to just that
The thing is, if the tower wasn't leaning and stood up straight, it would be nowhere near as popular as it is today. While it's still impressive and beautifully made on its own, the fact that it leans is what makes it special. Something so intricately made still has imperfections, and that's what makes us human.
Architecture and history in a fun video, love it❤️
it's more specifically called geotechnical engineering 😉
The editing/animations on this video are amazing!
I love how each attempt to stabilize only made the problem worse
Engineers weren't the only only ones trying to address the lean. Rappers were putting a lot of effort into it too.
1:10 1173 looks like BELL backwards
Wow
I enjoyed the subtle visuals in this one
Dear TED-Ed, I'm really glad i subscribed to your channel 😇 Thank you, I've learnt so many things from this channel 👌🏽
We're glad to have you!
the Tower of Pisa is one of the most interesting structural fenomena. Thank you for this video
I feel so bad for those people who tried so hard to correct the tower into a straight angle
This has been a question I’ve wanted to get answered for so long. THANKYOU!!!!
Beauty in imperfection! Wow that's a great line to ponder on! Thanks Ted for the awesome videos always.
3:55
The tower of pizza
Very cute animations as usual.
Ted ed I love your videos 3yrs ago please make those videos and there's love all of them
Nobody tell the tower that .5 > .44 or it's all falling apart
the jenga tower part is just genius
4:17
Smol
smol
@@nonamechannl smoller
Smol
The annimation is awesome :)
I'm in love with this animation... wish I was this creative!
While in Malaysia we have the leaning tower of teluk intan
Really neat video, now I have an anecdote for the future 👍
Fun fact: In pisa there are 3 another leaning tower...
피사의 사탑의 역사에 대하여 배웠습니다. 재미있는 건축물이라고만 생각했지만 깊은 역사가 있었습니다. 모든것들의 역사를 배우면 세상이 훨신 더 재미있어질 것이라고 생각이 됩니다. 재미있는 시간이 되었습니다. 감사합니다.
4:44 *licks one time*
*pisa immediate topples*
me: sad noises
this video literally sums up my life (except for the beauty of imperfection part).
This channel is way very better than College.
Hats off to the team. ✨✨
그 유명한 피사의 사탑이 왜 기울어졌는지 에 대해서 배웠습니다. 피사의 사탑을 곧게 세우려는 노력은 많은 세월 동안 있었지만, 결국 해결 방법을 알아내자 관광 자원을 잃지 않기 위해 쓰러지지 않게만 조치를 취하고 4도쯤 기울게 했다는 점이 재미있었습니다. 좋은 영상 감사합니다.
4:00 just starts drinking *ground*
What a masterful speech... I feel inspired! Thank you
If one day the tour falls this comments section would be overpopulated with people saying meme about it
Hi! How's the future?
Very nicely illustrated!
When my son was about 11 years old he entered a Jaycee Relay Race. He’d never ran track before and didn’t know everybody wore shorts. He came in jeans, to everyone’s amusement. He ran the last leg for his team - and came away the fastest runner of the day, and made up considerable distance to win. This video made me think of that day. How I wish I had been able to see it, instead of only hear and read about it. I was a single mom and had to work. My son was an amazing athlete. ❤️
The tilt was caused due to the protactor used at2:46
Beautiful animation,and i understanded with your good speech.
이 영상을 보기 전까지는 피사의 사탑이 기울어져 있다는 사실을 인지는 하고 있었지만 그 이상의 사고를 이루어내지 못했습니다. 왜 기울어져 있는지 또 왜 그상태에서 멈춰있는지 등 현상을 보는 새로운 시각을 제공해주셨습니다.
TED-Ed: They projected the tower would topple if it reached an angle of 5.44 degrees, and it was currently leaning at 5.5
Me: 👁👄👁
4:16 Something just flew!
Great animation!
I read a 50-70 page book on this,but I still watched this.
Pisa: "Perfectly imbalanced, as everything should be"
Ohhh!!!!
So, what about Indian Ratneshwar Mahadev Temple?
Ratneshwar Mahadev Mandir is one of the most photographed temples in the holy city of Varanasi in Uttar Pradesh, India. The temple, while apparently well-preserved, leans significantly towards the back side (north-west), and its garbhagriha is generally below the water much of the year, except for a few months during the summer. The Ratneshwar Mahadev Temple is situated at Manikarnika Ghat, Varanasi. The temple has developed a nine-degree slant.
Peter Parker after he visits Italy: *_Pisa Time_*
OUR EXPERIENCE OF HALF DAY VISIT OF LEANING TOWER CAMPUS IS PERMANENTLY STORED IN OUR MEMORIES. 👌👌👍👍
I’m happy that my great grandchildren will be able to enjoy it
"oh god it's gonna fall we need to do something"
*lightly touches soil, causing it to tilt further*
"OH GOD IT'S GONNA FALL WE NEED TO DO SOMETHING"
It's just leaning there...
*_M e n a c i n g l y_*
Wow the more you learn
Beauty of imperfection
It should be renamed as *Falling* tower of Pisa.
@4:22 they finally straiten it but why did they left 4 degrees?
I just went to Italy last month and it's still standing
If it hadn't been leaning, it would have been an average land monument that no people in the world would rather be interested to visit.
All the buildings there are actually really cool. It's a really pretty little area. I highly recommend it, if you have the opportunity.
The world to Italy: Do you want the Tower straightened?
Italy: Well yes, but actually no.
What is the music in this video? It is beautiful