Leaning Tower of Pisa | The Incredible Physics behind its Lean

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  • Опубліковано 16 гру 2024

КОМЕНТАРІ • 177

  • @SabinCivil
    @SabinCivil  2 місяці тому +22

    The last two months were fun for me trying to understand the physics behind the Leaning Tower of Pisa. I hope you will be able to extend your support today - www.patreon.com/Sabins . The support at Patreon is crucial for survival of my educational service. Cheers Sabin Mathew

    • @ShoilyDeySen
      @ShoilyDeySen 2 місяці тому +2

      Hey man, I'm Shoily. I'm an American accent female voiceover artist. If you need any female voice for your videos, kindly consider me as a choice. I can also generate Ai male voices which is human like. You are using Ai technology in your videos, so why not Ai Voiceover? So kindly let me know about your thoughts. Thank you.

    • @Davincifier
      @Davincifier 2 місяці тому +1

      Love the thumbnail bro 😂 you killed it

  • @imjody
    @imjody 2 місяці тому +111

    This tower is way older than I had first thought, and they tried to fix it in more ways than I had first thought, too! Great video! Thank you for the education. :)

    • @allangibson8494
      @allangibson8494 2 місяці тому

      And it has a built in bend because it started leaning as they built it…

    • @YanT141
      @YanT141 2 місяці тому

      Average 6th grade book reflection

    • @mindeloman
      @mindeloman 2 місяці тому

      And the US Army in WWII almost leveled it with artillery fire. The Germans were using it as an observation post. Considering the cost of lives the operation in Italy was costing, they would've done it had they 100% verified the Germans were using it. They had already destroyed the Abby at Monte Casino. - Seems like D-Day and the invasion of France is the biggest talked about and written about part of the war. The Allied invaded Italy a year prior and it was an absolute bloody slog. The Germans held the high ground at every advance. An entire amphibious operation was planned and executed just to be able to get around the German defense and capture Rome more quickly. This was the landing at Anzio. Italy was never fully captured by the Allies at the close of the war. Italy is a hellscape for fighting a war.

  • @krishanusengupta7710
    @krishanusengupta7710 2 місяці тому +43

    13:28 H.C. Verma Concepts of Physics at your book shelf.. Liked it 😇😇

  • @bl2575
    @bl2575 2 місяці тому +32

    Excellent animations, they really complement the script and make the explanation very clear!

    • @jimmyguitar2933
      @jimmyguitar2933 2 місяці тому

      This guy (Sabin) just stole someone else's content and added his unintelligible tags to it. Not praiseworthy at all.

  • @Romualdomgn84
    @Romualdomgn84 День тому +1

    Thank you, Sabin, for clear explanation and nice animation

  • @pranjalsingh7594
    @pranjalsingh7594 2 місяці тому +28

    That 2 volumes of 'Concepts of Physics' beside you was something pleasing to see.
    Love your content so much

    • @gamer__dud10
      @gamer__dud10 2 місяці тому

      🎉❤🎉🎉🎉😊🎉😊😊🎉🎉🎉
      Truly truly i say to you all Jesus is the only one who can save you from eternal death. If you just put all your trust in Him, you will find eternal life. But, you may be ashamed by the World as He was. But don't worry, because the Kingdom of Heaven is at hand, and it's up to you to choose this world or That / Heaven or Hell.
      I say these things for it is written:
      "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, *teaching them* to observe all that I have commanded you; and behold, I am with you always, even to the end of seasonal". Amen."
      -Jesus
      -Matthew 28:19-20

    • @pranjalsingh7594
      @pranjalsingh7594 2 місяці тому +1

      @@gamer__dud10 what the hell is this

    • @navneetanand4503
      @navneetanand4503 2 місяці тому +1

      ​@@gamer__dud10This is scientific channel.

  • @_spartan11796
    @_spartan11796 2 місяці тому +56

    How on earth did they forget water expands when it freezes?!

    • @RonaldRomeo-nt9nk
      @RonaldRomeo-nt9nk 2 місяці тому +4

      but doesn't it expand ONLY btn 0 and 4 degrees Celsius

    • @emreyurtseven23
      @emreyurtseven23 2 місяці тому +41

      I don't think they forgot it. I suspect they underestimated the amount of water the soil held.

    • @gavinjones
      @gavinjones 2 місяці тому +2

      Maybe because they were the fore fathers of the people who wrote the game of thrones show

    • @crimsonram6106
      @crimsonram6106 2 місяці тому +2

      @@RonaldRomeo-nt9nkat +4 water is the most dense hence least volume. Any change to either direction is an increase

    • @RonaldRomeo-nt9nk
      @RonaldRomeo-nt9nk 2 місяці тому +1

      @@crimsonram6106 is italy that cold though or is it just the area around the tower

  • @Freight_Train
    @Freight_Train 2 місяці тому +5

    I got the opportunity to walk up the tower in the mid 1980s. You could walk around the porticoes at each level. I had the bright idea to walk around the second to top level and there was a woman hugging the wall walking around the opposite direction. We met at the lowest point (furthest leaning side) and I opted to go around her. There are no railings on these porticoes (there was on at the top level) and it's smooth marble flooring. I had some serious vertigo, but a fun story to tell.

    • @robertbrandywine
      @robertbrandywine 2 місяці тому +1

      I went in the 2000s sometime but no one was allowed to climb the tower. No railings sounds insane!

  • @Gryphnn
    @Gryphnn 2 місяці тому +10

    Moral of the story. Admit that you made a mistake and start over, rather than waste significantly more resources trying to fix a problem you have identified early in your project.

    • @ChiakiClaire-qu6xi
      @ChiakiClaire-qu6xi 2 місяці тому +2

      They want to preserve the historical value, given that the second part they continued is after hundred of years after the war. They were also not expecting the land composition given it was hundred of years ago and not that advance in technology. Building and disassembling it will take another lots of years.

    • @byronvillanueva2001
      @byronvillanueva2001 2 місяці тому +1

      @@ChiakiClaire-qu6xiit’s good to see a positive and constructive response👏🏼👏🏼

    • @shawnfrey4757
      @shawnfrey4757 2 місяці тому

      No reasons to take it apart, they can use steel piers that will last forever.

    • @moealsharif13
      @moealsharif13 2 місяці тому

      How is that the moral of the story when it became a tourist attraction and one of the wonders of the world!

    • @JH-ce7yd
      @JH-ce7yd 3 дні тому

      Yes, during the early days of its construction that is precisely what should have happened. Now, as a unique historical landmark that can't be torn down, the building's plight is a ridiculously challenging technical problem, even for modern engineers. No one wants to be known as the engineer who accidentally destroyed it while trying to save it.

  • @johnnyredux4019
    @johnnyredux4019 2 місяці тому +6

    Great video and explanation. Glad the poor building conditions actually saved it from falling over in the earthquake of 1848.

  • @DrJQureshi
    @DrJQureshi 2 місяці тому

    This is yet another masterpiece, Sabin. You are doing excellent job.

  • @lmorissetstaug
    @lmorissetstaug 2 місяці тому

    Merci!

  • @brocaraton
    @brocaraton 2 місяці тому

    Good to see you again, Sabin. Another great video.

  • @Kuimera
    @Kuimera 2 місяці тому +2

    Ah... I love humanity... They spent so much more time and money trying to save the tower then just let it fall and build 200 more towers like that! Love our spirit to maintain culture and our pass history :D

  • @richardellis69
    @richardellis69 2 місяці тому +3

    At about 2 minutes in, you give a nice physical demonstration of leaning instability in action. Following that, we get a graphic that explains how the two torque equations work together. But what seems to be missing, which you refer to only with the phrase? " Let's introduce a small perturbation..." (great word by the way!) Without describing what that would have to be in order to instigate an asymmetrical loading upon the ground. What were you thinking? It might take? A minor tremor? A strong gust of wind? Neither of those occurred in your lab when you did your physical experiment. What factor, that could also be similarly present in the actual construction of the real tower, caused your concrete plates to start bearing more on one side of the sponge than the other?

  • @johnnyredux4019
    @johnnyredux4019 2 місяці тому +11

    Continuing construction after a long pause and realization of a lean already?? That is ridiculous. Why did they do that?

    • @fpeter01
      @fpeter01 2 місяці тому +1

      Engineers have bright mind, but they are exceptionally lazy. If there was a tower, why would you make a new one. Just continue.

    • @robtk3
      @robtk3 2 місяці тому +1

      Never underestimate the audacity of hubris.

  • @tonycohen2000
    @tonycohen2000 2 місяці тому

    Perfect video, thank you

  • @gavinjones
    @gavinjones 2 місяці тому +1

    00:17 "The engineers kinda forgot that water expands when it freezes"
    These engineers must be the great great grandfathers of the Game of thrones show writers

  • @ASHINW99
    @ASHINW99 2 місяці тому

    Absolutely amazing!

  • @vrcar2616
    @vrcar2616 2 місяці тому +1

    You look dhirendra shashtri but video is top notch

  • @therichieboy
    @therichieboy 2 місяці тому

    Another brilliant video. Thanks!

  • @laughingman_confused
    @laughingman_confused 2 місяці тому +1

    Are we going to ignore the fact that Superman did correct the angle of Pisa once but people want it leaning.

  • @kristaps.mezavilks
    @kristaps.mezavilks 2 місяці тому

    This was very interesting. Thank you!

  • @henlokinty
    @henlokinty 2 місяці тому +5

    i love your hulk animation

  • @mr.technicalverma7506
    @mr.technicalverma7506 2 місяці тому

    Oh wow😮, glad to see 'concept of physics ' book beside you. Did you studied the whole book.

  • @kendrickvillamor2510
    @kendrickvillamor2510 8 днів тому

    Thank you to more learn 🙏 ☺️

  • @mindbomb9341
    @mindbomb9341 2 місяці тому

    Great video. You are a super channel. I will share it on Twitter.

  • @johnsstudies4335
    @johnsstudies4335 2 місяці тому +1

    Could you guys make a video about the President Costa e Silva Bridge (Rio-Niteroi Bridge)? It's a 13.3-km-long bridge that connects the cities of Niterói and Rio de Janeiro over the Guanabara Bay and it's the longest prestressed concrete bridge in the Southern Hemisphere.

  • @ProjectNOTOS
    @ProjectNOTOS 2 місяці тому +3

    Torre di Pisa is wonderful! We should make a video about Pisa and Siena, lovely!

    • @gamer__dud10
      @gamer__dud10 2 місяці тому

      ❤🎉🎉❤🎉😊😊🎉😊🎉😊🎉
      Truly truly i say to you all Jesus is the only one who can save you from eternal death. If you just put all your trust in Him, you will find eternal life. But, you may be ashamed by the World as He was. But don't worry, because the Kingdom of Heaven is at hand, and it's up to you to choose this world or That / Heaven or Hell.
      I say these things for it is written:
      "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, *teaching them* to observe all that I have commanded you; and behold, I am with you always, even to the end of seasonal". Amen."
      -Jesus
      -Matthew 28:19-20

  • @edward9674
    @edward9674 2 місяці тому

    Thank you for another great video!

  • @AalapShah12297
    @AalapShah12297 2 місяці тому

    I didn't understand what you said at the end. If the leaning instability is because of the height of the tower, then why did it start leaning even when the tower was only partially built? Am I missing something? Any answers appreciated.

    • @moealsharif13
      @moealsharif13 2 місяці тому

      The leaning instability was caused by the soil condition (soft ground)
      There’re much taller towers that don’t lean since the soil is compact to the right conditions.
      Doesn’t matter it wasn’t as tall as the finished tower, it was still tall enough to cause a lean since the ground is soft!

  • @brocaraton
    @brocaraton 2 місяці тому

    I really like engineering and I had no idea about any of this stuff.

  • @mrDmastr19
    @mrDmastr19 2 місяці тому

    Just spray a can of gaps and cracks foam on the low side and it’ll be fixed in 30 minutes, maybe splurge and get the up to 3” can.

  • @shawnfrey4757
    @shawnfrey4757 2 місяці тому

    They can use steel piers, drive them to bed rock, they can lift it and stabilize it forever.

  • @kartakaravita
    @kartakaravita 2 місяці тому

    Well explained

  • @ShijuAlex
    @ShijuAlex 2 місяці тому

    On your next video could you please explain the working and physical properties of a projector

  • @mr.hijacker9568
    @mr.hijacker9568 2 місяці тому

    Can u please make a video on GIVT gearbox?

  • @hosseindod2538
    @hosseindod2538 2 місяці тому

    Thank you 🙏

  • @mr.technicalverma7506
    @mr.technicalverma7506 2 місяці тому

    Thank you 🤗

  • @AmareBelay-m2s
    @AmareBelay-m2s 2 місяці тому

    thankyou.please another

  • @tariqkhan3906
    @tariqkhan3906 2 місяці тому

    Please make video on "Sweep in PSC Girders/Beams". It's nowhere on the internet.

  • @sierranexi
    @sierranexi 2 місяці тому

    Engineer: "Just let it f fall, the game's on at 8"

  • @kldude2674
    @kldude2674 2 місяці тому

    Proud to be a malayali ❤.

  • @harshhrshah
    @harshhrshah 2 місяці тому

    Why filling concrete compressed south side? Increasing weight on north side should shift COG to north side.

  • @NativeVsColonial
    @NativeVsColonial 2 місяці тому

    When I googled “How to cover up embarrassment” this video popped up 😢

  • @publicmail2
    @publicmail2 2 місяці тому

    What about the leaning tower of pisa in Niles IL

  • @taquinas12
    @taquinas12 2 місяці тому

    They should take it apart piece by piece, number every component and rebuild on a better foundation.

  • @just.jose.youtube
    @just.jose.youtube 2 місяці тому

    Good video!

  • @PICCI701
    @PICCI701 2 місяці тому

    Bravo congratulations

  • @DimasFajar-ns4vb
    @DimasFajar-ns4vb 2 місяці тому

    good job sir

  • @twistedyogert
    @twistedyogert 2 місяці тому +6

    How did they forget that water expands when it freezes?

    • @automation7295
      @automation7295 2 місяці тому

      Nobody knew that water expands during the 1100s

    • @volvo09
      @volvo09 2 місяці тому

      ​@@automation7295 no, in 1990 when they tried the liquid nitrogen

    • @robertbrandywine
      @robertbrandywine 2 місяці тому

      TBH, that sounds like a simplification of what happened.

  • @betaorionis2164
    @betaorionis2164 2 місяці тому

    Great video, BUT the cartoon soldiers at war looked like Roman Legionnaires from one thousand years earlier.

  • @claytonlevibrown
    @claytonlevibrown 2 місяці тому

    1000 years in the making.

  • @VIJAYKUMAR-gs2dg
    @VIJAYKUMAR-gs2dg 2 місяці тому

    Hi. This video is really informative and helpful. Thanks for that.
    This tower more probably a mistake and trying to make its correct.
    You can consider one of the best architect in the world i.e. "Tanjore Big Temple" built by chola emperor.

  • @stoveguy2133
    @stoveguy2133 2 місяці тому

    Freeze the soil on the lower side to expand it.

  • @reneluna5340
    @reneluna5340 2 місяці тому

    They should have used Foam like I did for the concrete on my driveway, it’s now level

  • @P_Petkov
    @P_Petkov 2 місяці тому

    Great story

  • @omersabore4666
    @omersabore4666 4 години тому

    Why they are not making an other deep small tower on the other side and attached the tower to the small deep tower

  • @कश्परैना
    @कश्परैना 2 місяці тому

    Make a video on 'Vijay Stambha" which is located in Rajasthan

  • @timberwolf0122
    @timberwolf0122 2 місяці тому

    Didn’t Superman fix this already in Superman3?

  • @aahil9126
    @aahil9126 2 місяці тому

    HC Verma's Concept of Physics 😮😮, Im prepping for JEE rn and I somehow see this everywhere 🥲😂

  • @soumyadeeppaul2623
    @soumyadeeppaul2623 2 місяці тому

    2:14 The 3 meter Scale on this visual demonstration is not accurate. People can be a maximum of, as of current knowledge, 2.72m tall(Robert Wadlow). Even if those people were as tall as Robert wadlow, it wouldn't have been 3 metres, and further the people are taller than the depth demonstrated, which demonstrates it's inaccuracy quite evidentially😅.

  • @yfiles700
    @yfiles700 2 місяці тому +1

    So many chances for it to collapse

  • @amazingnews777
    @amazingnews777 2 місяці тому

    Video is good, you never told the solution for the problem

  • @1verstapp
    @1verstapp 2 місяці тому

    >and who would want a perfectly straight tower?
    not even if it has a banana bend in it?

  • @nikitatarsov5172
    @nikitatarsov5172 2 місяці тому

    Omg, what an weird history of attempts o_o

  • @thewombat4377
    @thewombat4377 2 місяці тому

    Fix it Vegas style. Implode and build new, bigger, better.

  • @HotdogJuice
    @HotdogJuice 2 місяці тому

    The solution to fix it is rather simple, however, it would lose landmark identity

  • @kenneybis1097
    @kenneybis1097 2 місяці тому

    Reminds me of the Millennium Tower except I doubt it will last 10 more years.

  • @man.i.literally.failed6772
    @man.i.literally.failed6772 2 місяці тому

    If they finished the tower without stopping I reckon it would of tipped a long time ago

  • @dr.python
    @dr.python 2 місяці тому

    It’s more like leaning anxiety of Pisa

  • @saidameziani7297
    @saidameziani7297 2 місяці тому +1

    ❤ France algérienne Paris iltone ❤❤ Pink diamant rubis or ❤❤❤❤❤ chance baraka Allah engel ❤❤❤sir Ronaldo univers prince sultan ❤ Alibaba Amazing akim ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤ empire allah akbar ❤❤❤❤❤❤❤❤❤❤❤all

  • @brianfong5711
    @brianfong5711 2 місяці тому

    Your amateur 3d effects artist with terrible taste always pleases me!

  • @davidjd123
    @davidjd123 2 місяці тому

    Bonanno Pisano must be embarrassed. Italians will throw away a less than perfect pizza but they kept this tower going? Not very Italian.

  • @An.Individual
    @An.Individual 2 місяці тому

    nice video

  • @megaknight3705
    @megaknight3705 2 місяці тому

    why don't they disassemble the tower and reconstruct with more robust base?

  • @shinchan-pd1kp
    @shinchan-pd1kp 2 місяці тому

    Channel ka nam change kr dia apne

  • @therealbronxbull8541
    @therealbronxbull8541 2 місяці тому

    The tower is gangsta

  • @A_for_AML
    @A_for_AML 2 місяці тому

    New name ? Im confused on yt app😂

  • @robertbrandywine
    @robertbrandywine 2 місяці тому +2

    Being OCD, this repair would drive me nuts. I would have disassembled the entire thing. Stabilized the soil beneath while also making it retain its earthquake resistant properties, and then rebuilt the tower, changing things slightly so it would have been perfectly vertical from top to bottom!

    • @kreativechaos7606
      @kreativechaos7606 2 місяці тому

      I was thinking the same while watching the video, better disassemble the whole tower, and build it again.

    • @Photosynthesisbeing
      @Photosynthesisbeing 2 місяці тому

      Bean counters don't care about ocd.

    • @user-nv7yi9ee4s
      @user-nv7yi9ee4s 2 місяці тому

      And then you would achieve world peace, gove happiness to everyone and solved all problems

  • @MrHorseman196
    @MrHorseman196 2 місяці тому

    So no degree and no modern tools equals a building that will last longer than a building built by an engineer and the most advanced tools? Make that make sense.

    • @MSportsEngineering
      @MSportsEngineering 2 місяці тому +1

      I think you're the only one who came to this conclusion

  • @BilgeBaykusTOL
    @BilgeBaykusTOL 2 місяці тому +1

    😯👌

  • @SaudiMarshal
    @SaudiMarshal 2 місяці тому

    Thank you

  • @karan-ns8ry
    @karan-ns8ry 2 місяці тому

    Did you change channel name because i dont remember subscribing to this name

  • @danielokwuagwu7855
    @danielokwuagwu7855 2 місяці тому +4

    First to comment..😅 i finally made it to the Top ⤴️ 😭😭

  • @PrajwalShrestha-n9j
    @PrajwalShrestha-n9j 2 місяці тому

    so can anyone tell me why they didn't inject liquid nitrogen on the leaning side so that the water would expand and exert an upward force

  • @Photosynthesisbeing
    @Photosynthesisbeing 2 місяці тому

    The venetian's could of taught them a thing or two.

  • @godfreydube
    @godfreydube 2 місяці тому

    Looks like it's actually falling.

  • @SANJAYVATS-rz7gbfiresafety
    @SANJAYVATS-rz7gbfiresafety 2 місяці тому +1

    Come to India and go to banaras gath there is temple which is leaning 9 degree

  • @ybl456
    @ybl456 2 місяці тому

    I have to capture a pic in which I am trying to stop it from falling 😂

    • @gamer__dud10
      @gamer__dud10 2 місяці тому

      ❤🎉❤🎉🎉❤🎉❤🎉❤😊😊🎉😊🎉
      Truly truly i say to you all Jesus is the only one who can save you from eternal death. If you just put all your trust in Him, you will find eternal life. But, you may be ashamed by the World as He was. But don't worry, because the Kingdom of Heaven is at hand, and it's up to you to choose this world or That / Heaven or Hell.
      I say these things for it is written:
      "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, *teaching them* to observe all that I have commanded you; and behold, I am with you always, even to the end of seasonal". Amen."
      -Jesus
      -Matthew 28:19-20

    • @ybl456
      @ybl456 2 місяці тому +1

      @@gamer__dud10 bro I am not a right person for your shit.

  • @irfansatrio4621
    @irfansatrio4621 2 місяці тому

    R.I.P

  • @marufyaman9561
    @marufyaman9561 2 місяці тому

    Adam UBERKULOZ a ne kadar benziyor 😮

  • @marcanderson6509
    @marcanderson6509 2 місяці тому

    And why do they care about this tower so much?

  • @veganismyname
    @veganismyname 2 місяці тому

    It's almost like it was meant to provide engineering hobby 😂

  • @adamsyclone7409
    @adamsyclone7409 2 місяці тому

    Let it fall it’s destiny was to fall years ago and we took that away from it lol

  • @Sprunki-Members
    @Sprunki-Members 2 місяці тому

    Is It Tower Of Pizza Or Tower Of Pisa?

  • @saurkashi
    @saurkashi 2 місяці тому

    ❤❤❤❤

  • @krishnakumaar.s6213
    @krishnakumaar.s6213 2 місяці тому

    Hello, Good explanation. But you forgot a Marvel structure in Tamil Nadu India located in Thanjavur and its name Brihadishvara Temple, called Rajarajesvaram. This structure is very old and constructed 1000 years old. You consider the tilt tower marvelous but make a study on that temple. The world will wonder about the construction of Tamil engineers

  • @VikasKumar-yc7um
    @VikasKumar-yc7um 2 місяці тому

    It's a mistake .......clearly those engineers have no idea what they were doing..... stop calling it an engineering marvel.
    Later, it was reinforced .

    • @moealsharif13
      @moealsharif13 2 місяці тому

      We all know it was a mistake, but the fact it’s been leaning for a thousand of year and still standing is what makes it an engineering marvel

    • @VikasKumar-yc7um
      @VikasKumar-yc7um 2 місяці тому

      @moealsharif13 No, it wasn't. It was continuously going down year by year ,millimeter by millimeter, and their was going to be a time in the future when it was finally going to be collapsed. That's why they reinforced it at the foundation. So it does not lean any further and collapse. Because people started to visit the place .

  • @TheMatsushitaMan
    @TheMatsushitaMan 2 місяці тому

    Sharp outfit!