London's Tower Bridge | An Unbelievable Bridge

The London tower bridge amazes the specators even today. We are thankful for the support received from SolidWorks for the production of this video. You may access an affordable version of 3DEXPERIENCE SOLIDWORKS for Makers here ( $38USD/year! | 20% Off) - solidworks.com/lesics
You may download the London tower bridge motion study model from here - www.dropbox.com/scl/fo/xuumfy...
Cheers Sabin Mathew

[@Lesics]

I hope the secret technologies of London tower bridge will inspire you to become a better engineer. We are thankful for the support received from SolidWorks for the production of this video. You may access an affordable version of 3DEXPERIENCE SOLIDWORKS for Makers here ( $38USD/year! | 20% Off) - solidworks.com/lesics You may download the London tower bridge motion study model from here - www.dropbox.com/scl/fo/xuumfyis29lbn0ad295yo/AJgiw0huTkIkXrimKgm_Hdw?rlkey=t4ujiqp7q6f62m8rcqpl78ebj&st=bipmmdo9&dl=0 Cheers Sabin Mathew.

[@hk8450]

The biggest problem with high pressure and pump mechanism is the leakage of liquids. How does the pump they make prevent liquids from leaking out?

[@victor4091]

This is fascinating thank you Sabin!

[@tiisetsorammego3053]

can you make video of hydrogen engine

[@SumanKr84]

SIR ARE U FROM INDIA OR NOT ???

[@victor4091]

​@@SumanKr84ARE YOU FROM INDIA SIR????

[@ovetown3184]

please never stop this is amazing

[@JWC249]

Good video, but I feel like i would have better understood the mechanics of the bridge if i saw some pedestrians getting severely injured when it opened.

[@shellytheturtle1295]

💀

[@tryh4rd2]

110th like lol

[@Nikolasz1173]

BASED, Yes it would have been easyer to understand the mechanics of the bridge

[@vivek-420]

Wow. Animation and video quality has significantly improved from last video! Kudos.

[@yellowbacon69]

It’s cause they got new sponsors. I’m really glad that they can freely express themselves with the bigger budget because they totally deserve it!

[@dominikpfleghaar5091]

Awesome video, as always! Maybe it's worth mentioning that the bridge's mechanism initially used to be powered by steam engines. You can still marvel over these beauties in the bridge museum located in the southern part of the bridge. Now that awesome and complex steam operated mechanism would be worth of it's own video (hint, hint)

[@keyikush]

This is the first time i saw a hydraulic motor mechanism. Fascinating

[@ovetown3184]

in a world of endless AI useless videos this is the only good learning channel

[@JP_TaVeryMuch]

I'm grateful for your latest video which is just as well made as the previous ones. This time as a local to the subject matter, I am able to contribute a couple of things. I was rather hoping when you admitted that you had seriously oversimplified the engine room assemblage, that you were about to mention the carefully maintained but redundant steam engines. But perhaps they wouldn't fit with the bright primary coloured visual version of this old marvel. The other aside I'd like to tell the viewers about is to do with something which again you came close to addressing but in fact didn't. Thank you for the heretofore unknown to me superlative pivot points design. You always come up with several of these "Now I didn't know that and I didn't know that I'd be fascinated by that either" gems of engineering greatness. Alas you mentioned the over rotation downwards, as it were, but not in the other, upwards direction. This brings me to my second point: In one of those English exceptions and eccentricities, the roaddeck bascules are only ever raised to fully vertical when the monarch passes through. The last time this happened was during the Diamond Jubilee celebrations for the late Queen when she and the Duke of Edinburgh braved the driving rain being rowed down the Thames on the new version of the seventeenth century Royal Barge.

[@tulippasta]

Just Sabin casually tip-toeing away from the bridge he just destroyed 😂

[@Ajaykrishna97_]

Excellent animation and I am so happy you got a sponsor from solidworks.

[@fixbertha]

There are two good reasons to lift the trunnion load. Neither is simple load relief. The first it to prevent "fretting" (basically, scuffing of the trunnion and/or bearing at the contact area). This can happen if the load squeezes or wipes out the lubricating medium and the trunnion-to-bearing contact area is subject to vibration. The second is to allow lubrication to get to the load area. The trunnion load is concentrated (in the animation) roughly between clock positions 7 and 8. In the real world this could wipe lubrication off the trunnion-to-bearing contact area. Lifting the trunnion allows lubricant to flow into that wiped area. Similarly, double acting reciprocating compressors must be designed so there is "rod reversal", that is, the connecting rods must lift away from the cross head bearings for about 45% of each crank revolution. Other wise the bearings can overheat and fail due to loss of lubrication.

[@Frechy69]

Amazing visuals and animations. Love the Alfa Romeo 4C waiting at the gates. You've got a new sub!

[@thomaskampouris9713]

Very nice video. I love how you explain genius things with simple terms and visuals

[@capybara341]

Thank you! This video really helped us with building a model of the Tower Bridge.

[@user-cl4vw5bm7q]

Fascinating ,nothing but respect ❤🙏👍

[@MA-gh9op]

BEAUTIFUL

[@syedRH]

It is truly remarkable to witness. I had the opportunity to personally visit the pedestrian bridge, and I highly recommend that anyone who has the chance to visit the Tower Bridge Museum should definitely take advantage of it.

[@sukritpriyank2169]

The Trunnion Bearings are truly impressive

[@ahmedal-ebrashy3691]

Please please please make a video about sensors and how can digital numbers zeros and ones can be transmitted as waves, and how can you use zeros and ones to give a message of high voltage and low voltage, such as radio waves that transmit sounds with different strengths?

[@user-fy9vg1rd4r]

I love these kinda videos extremely informative!

[@KM-fl5jq]

Exceptional video as always!

[@borntoclimb7116]

This bridge is true a masterpiece of engineering

[@user-hf5hw3tl6p]

Love the animation details keep up thegoodwork

[@lavina58]

Awesome video. Thanks 🙌🙌👍👌😊🍀🍀

[@mackenzie9865]

Great video. Great use of animation.

[@MIHILAL_RAJAK_]

I always live so much exited to your video❤❤❤

[@duitser95]

can you maybe just edit the direction of rotation on the pinion gear @ 5:29 😅 other than that excellent video

[@wendalboy]

How have i only just found this amazing channel

[@sszogg]

Fantastic video: both mechanical and civil!

[@johnspathonis1078]

I think that the early designers could have been acknowledged more by talking about how the bridge has always been controlled by high pressure hydraulics. When built, they burnt coal to provide steam to run a steam engine. This steam engine powered high pressure water pumps. High pressure water is then fed into hydraulic motors to raise and lower the bridge. The high pressiure water is fed across the elevated walkway to operate the other side. So the walkway has this aditional purpose. The modernisation was to replaced the water driven motors with modern oil driven motors electrically powered. If we traced the modern energy cycle back, the electricity is generated with the aide of water/steam and depending on where you may live , the burning of coal. Cheers.

[@FaizanKhan-vv4hh]

Great explanation. Keep it up.

[@strategistaow3520]

Thank you

[@suwatpongtepupathum4694]

Thank for amazing content.

[@ireneuszpyrak961]

Piękny film, dziękuję ❤

[@gwynm8506]

I'm surprised they didn't get the hulk to destroy the upper walkways 0:11

[@yareyare5537]

tHIS IS AMAZING

[@JeaneGenie]

Would it be possible for Britain to design and construct something of this complexity in this day & age ?

[@NitinKatiyarCircle]

Now all the looted money got used up and there is nothing left for engineering.

[@HariSC]

Amazing ❤

[@mrinalkarmakar216]

I would greatly benefit from a detailed video on Air Handling Units and sewage treatment plants, covering topics such as their functions, components, and their significance in various industries. Given your expertise, I am confident that your insights and explanations would be incredibly informative and valuable.

[@vijaybhatt9638]

Superb engineering model 👌👌👌👌

[@AdhamjonHaydarov-yp3kt]

good luck and thank you so much

[@JaydenThomas-qe6zd]

Great video 😊

[@bradleyclutton4564]

Those British are incredible engineers!

[@smitpatel3227]

great video

[@YoungGandalf2325]

11:16 A joystick that controls the opening and closing of the bridge? I would have way too much fun with that! 😁

[@Orxenhorf]

There's a video from Tom Scott about 2 years ago where he got to operate the bridge.

[@abhishekverma1126]

It's amazing

[@oscarlyrics5819]

I wish someone would teach accounting like this

[@nette8986]

You can also make a video of how AMT automated manual transmission works

[@cgee3999]

A guide for dummies, however after one glass of wine, you lost me😂

[@uniqueboydeepraj2166]

Lot's of love from 🇳🇵🇳🇵🇳🇵🇳🇵🇳🇵❤❤nepal

[@pro3ification]

thats simply build, best rule: make something as simple as posible, introduce complexity and the failure rate increases... simple yet effective lesson !

[@AlfaOxTrot.]

Hey can do a video about rotary union and it's application in excavator. I wonder why does the hydraulic lines and power cables does get tangled when it rotates

[@irradiatedbadger]

You guys said youd do a video about tower 7, is it still coming?

[@Atlasique]

How does using hydraulique pump, hydraulique motor with the vannes tha come along is more straigth forward than transmission ?

[@bp-pubgmobile5437]

Fyi,in Malaysia the Terengganu state.We also have the Terengganu drawbridge that also lift up the bridge.

[@aidira84]

Hey that’s my town

[@Lasvegasnowman1]

What software was used for animation and where did you get blueprints

[@pk10x]

100 years ago: we build things to last now: yeah... the bearings are sealed so you're going to have to replace the whole bridge

[@anishbansal9185]

More videos on civil engineering

[@firstdeveloper7]

Hi from Uzbekistan 😅

[@salmabaig9980]

Can you please make the explaination of the construction on India' s atal setu bridge

[@ivanroberto9006]

Hey @lesics what about you guys create a course to teach us how to do these animations ?

[@elamaran.r.p]

can u post any electronic and electrical or mechanical based videos. many videos based on civil, like bridge, dam and buildings. please upload any electronic or mechanical

[@JFBence]

I thought I was going to show the old method that used the power of the Thames

[@ableite]

when the wtc7 video will be released??

[@Machino]

I'll take third, you two can fight each other for first. 😊

[@user-qs3mh4pp3b]

Very interesting within 5 minutes the bridge is up and down. What power engine is used on inauguration and what engine has these days the London Bridge.

[@ChrisCooper312]

Originally it used steam engines, but since these didn't have the power to rapidly raise the bridge, they used another clever mechanism. Hydraulic accumulators. These were a number of heavy pistons that were raised by water pumped by the steam engines. When the bridge was to be raised, these would be lowered and the water diverted to hydraulic motors that would raise the bridge.

[@Bacon17855]

0:10 10 seconds in im questioning why i clicked this video

[@abubakargabol8134]

❤❤❤

[@vitaminb4869]

For some reason I always thought this bridge opens when Chuck Norris flexes his bicep.

[@user-oq8ie2wv7z]

this is why I don’t go to sleep

[@Orxenhorf]

0:06 - Except the walkways (or maybe just one) is actually open as a tourist attraction with glass floor. So, people do use it.

[@user-fi6td1io2y]

Life is what make it,there is a great deal of works that need to be done,what is the problem.

[@X1....]

👏🏼👏🏼👏🏼

[@mohdshad7498]

Animation of the load on the bearing is wrong. It's upside down

[@thomasoption3314]

Where have you got this idea?

[@shobley]

OK... so slightly confused... I visited Tower Bridge last year, and the tour was full of references to elevated water tanks that raise the bridge. Walked through several pump rooms too... so was this how it USED to be elevated? Yeah... the walkways ARE in use too... I was up there when the bridge opened. :D UPDATE : Yep... new system installed in 1974.

[@Lesics]

Yah, in their museum they have showcased the old technology -the accumulator based pressurized water technology. All those are abandoned now. They have moved to compact and efficient oil based hydraulic systems.

[@Sumit19970]

Make a video about Howrah bridge ❤

[@unamed6663]

U even share the model file. Thanks

[@linuxguy1199]

Hydraulics have probably done more for mankind then electricity, and I doubt our modern electrical grid would've never came to fruition without them.

[@surprisemhlongo9318]

I have a similar idea. Anyone know where I can pitch it?

[@RK7LifeLine]

Both professors spoke english, but I still need someone to translate

[@consolechips]

Great video BUT it is not true that the walkways are available when tower bridge is lifted. Today if you want to access the walkways or steam engine room, you will need to purchase a ticket for the Tower Bridge Exhibition beforehand. It is not free it is a premium option.

[@annoermusic8201]

Lesic indonesia kenapa tak upload upload mamang sabin😂

[@farhanrailfanscc2066]

Channel induknya lagi mengalami krisis keuangan, sehingga upload versi Indonesianya mengalami kendala karena harus membayar Voiceover professional, biaya edit ulang, dll

[@anishbansal9185]

How foundation work done

[@TheAandGprojects]

Hydraulic fluid gearsss 😁

[@Dezzuzu]

This is the tower bridge

[@jamesrussell2936]

Is hydraulic power the most powerful torque humans have available?

[@tiisetsorammego3053]

Depends

[@ifell3]

Bet that hasn't got any potholes on it 😅

[@Jaiden-2013]

can’t hear that 7:04

[@gabrielamancio6286]

Now they charge tourists to go up the walkway

[@privatechannel6540]

Hindi version please 😢

[@hissaalfred-fj5dr]

YOU SURE

[@amanrathore6310]

at 4:34 it is 20th century not 19th century

[@georgeprout42]

It opened in 1894...

[@arturnow]

It’s a tower bridge not London

[@apollorobb]

Just Keep Maersk away from it

[@jay-wens]

Why?

[@SpareSomeChange8080]

who?

[@yoshtg]

some engineers even hundreds of years ago create really nice things meanwhile lots of other people remain lazy and dont want to think or work

[@magnavisions5765]

6th comment 😅

[@ClassicDisneyLandFan]

/e pin

[@duytdl]

Someone stealing your video: kzbin.info/www/bejne/g6bKiKiNatyNj7c

[@Lesics]

Thank you for letting us know. We removed that video.

[@kb_mung]

Firstt