Hello everyone, Lesics is in a brink of shutting down. Your help at Patreon is crucial for us - www.patreon.com/Sabins Hoping for your support, Cheers Sabin Mathew
@@stuka1111 the animation is Great. I was making a joke about how there is usually a bunch of construction workers standing around doing nothing. At least in the US.
Designing and rendering a 15 minute animation like this is also quite a feat of engineering, especially one with as much detail as this one. Thank you so much for all the hard work and time putting this together
Joseph Strauss was officially the Chief Engineer, based primarily on his long history of building drawbridges throughout the country. But for the GGB, Strauss had absolutely no involvement with its design. The suspension design was proposed by Leon Moisseiff, a Latvian immigrant who had been involved on other large suspension bridges in New York, and it was he who had the idea of an elegant suspension bridge. The real brains behind turning the concept into a well-designed structure, however, belongs entirely to Charles Ellis, a meticulous structural engineer who personally made all the static and dynamic load calculations, including solving some equations with 37 variables…all done without the benefit of computers. Strauss became so irritated with the attention Mr. Ellis was getting from the press and other engineers that Strauss canned him. It wasn’t until the 75th anniversary of the bridge’s completion in 2013 that a plaque was installed on the bridge to honor Charles Ellis as the true designer.
if this is true then this absolutely needs to be pinned. the uploader puts too much credit on the strauss guy throughout the video without mentioning the other chief minds behind this engineering marvel.
In the history I have learned, its always TWISTED stories that are given importance, and the REAL people behind the projects like this are always hidden under carpet. Joseph S must be a wealthy guy with lots of influence, so his name will live forever while the Real Designer & Engineers will die unhonoured. This is bullshit world that we live in everyday - Thanks Hylie Doobius for honouring the Real people.
14:33 I attended the bridge's 50th anniversary in 1987. When the bridge operators approved the temporary closure to vehicles, they estimated 50,000 would attend. The actual number was estimated at peak, close to 800,000 had come, far more than could even fit on the bridge. You can find photos that show masses of people stretching back on to land, unable to reach the span. I attempted to cross the bridge - end to end. It was so crowded that after two hours, I only made it from the toll booths to mid span. The sag was visible. Could you imagine if the cables snapped, killing several hundred thousand? Even though the bridge held up fine, the bridge operators said they will NOT repeat such an event.
@@PaschanTOPs My bet is that they won't. On many levels, the '87 celebration was too great a safety hazard. While I am unaware of any deaths, I did see a paramedic team try to take someone out on a stretcher. People did their best to get out of the way, but it was dismally slow. Bridge operators and the city of S.F. can't risk another 'open house' on the span. Maybe they'd close it for a televised parade - like the Thanksgiving Macy's parade down Fifth avenue. The center would be cordoned off to pedestrians, but a long stretch of the roadway beyond either side of the bridge is also closed to traffic. This enable all attendees yo view the parade.
I was stuck in mid span for over an hour. I was terrified because not mentioned was the center span was swaying side to side. I think mass intelligence sensed that it would unsafe to institute a Wave as fans at sporting events did in their seats. I think the induced additional forces of the wave would have brought down the bridge. I had claustrophia
I bet if they do it again in '37, it'll be run differently, such as: limited access via tickets distributed in advance; timed entry for each ticket; half the tickets provides entry from the south, the other half from the north, and people will either loop back at the midpoint, or walk at pace to the opposite end (which way is TBD.) The hard part is that participants will have to maintain a certain pace, so as to get off the bridge and permit later ticket-holders access. I don't know how they can enforce this part, but this would be critical.
@@nerdy4172 it's engineering with an emphasis of physics. The channel's name literally is LESICS(Learn Engineering through Physics). So don't try to act smart lmao, and understand the point.
@@VesperTV_ you do have a point there but theirs always the main person ….like president ….like coach…..like superintendent….like mob boss….so on so on
@@DanO530.8To put it simply, there’s always someone with a vision and a plan. The teams of workers are just the people constructing it. Not to undermine their efforts though they played a very big role in the Golden Gate’s construction.
This man with his engineer colleagues designed this bridge without advanced CAD and simulation programs and computers. Using just pencils, papers and editing tools like rulers and drawing compasses. Today it is still standing there and get the job done, between those harsh environments.
Fun fact. The Golden Gate Bridge undergoes constant maintenance. There is a crew that works from one end of the bridge to the other. They repair and replace rusted out pieces and repaint as they go. This is a never ending loop. When they reach the end the crew goes back to the other side and begins the process all over again.
Fun fact for you: Though the GGB has a longer span between main towers, the Mackinac Bridge sports a total length 3 times that of the GGB(5 miles long). I have crossed a few times. Every time there is a maintenance crew working on the bridge. What they do is they paint the bridge every year, starting on one side, ending the year on the other side.
Additional facts: At the time of the Golden Gate Bridge's construction, no steelworks on the West Coast could produce components large enough to construct the towers, so they were shipped via the recently finished Panama Canal from the East Coast (New York specifically I belive) The Red color originally was to be a temporary coat to protect the bridge while a final color could be chosen (the navy suggested yellow/black stripes for visibility reasons) but it was stuck with as the locals were fond of it The Bridge was constructed with an unprecedented (for the time) emphasis on worker safety, to the point as far as I'm aware there was only one fatal accident during construction.
Says on Wikipedia that apart from this one fatal accident, there was also a constructive part with 10 people on in, that fell into the net. The net didn't hold up, so all of them fell to their death. Still those 11 deaths were far below the 36 fatalities they estimated before construction.
@@officialnickname Thank you for this info. I was wondering when the video would say how many people died in the process of construction. Idk, I think it's important to remember the fallen and their sacrifice to appreciate their success. 🙏
My Grandfather (1890 - 1964) wrote a book on the engineering of the bridge contemporarily with its costruction. (1935). He was an engineer for the City of San Francisco. BTW. I don’t think they used roller compacted concrete. I inherited a small piece of one strand of the cable and splice from my mother. The Golden Gate Bridge will always be the standard for beautiful infrastructure. His book is still for sale at the gift shop.
Roller compacted concrete?when it is wet We use big long vibrator (nothing sexual )thing say my boss that it is use to help the concrete compact it self and get rid of air boobles or something like that .
My research showed that RCC was not used on the deck. RCC is usually for unreinforced concrete. Good documentary video and narration. However, I think it should have mentioned the use of the catenary formula that was used and the involvements for Eng. Charles Ellis and that Strauss died the following year.
@@HimDead1228that was the most random and unexpected thing that happened here in Baltimore like i wasn't expecting that but seems like they crashed the ship on purpose since you can watch as the cargo ship turns towards the pillar
@@fouranglesquare no the currents were pushing the ship around since there were currents there and the power went off twice but the moon lit up the sky so they could see where they were going
That is why i as civil engineer really fall in love with these kind of mega structures. Only those who worked on structures know how they built it. For normal people it is just bridge to connect with each other but for us it is more than that it is our emotions, our commitment and love to our country.
@@mastermind5421 False, depends at what exactly you do and in wich country. I get paid about equal with most engineers, I work more hours officially to be honest, but my friends that are engineers work a lot off the clock, even when they are home. Only disadvantage in my book is that my work is almost always in dusty environment and more physical
Amazing! The wisdom knowledge and skill to get this done at that time (1930s) is beyond me! Thank you Lesics for always making these well animated and explained videos!
I'd be interested to know how their process differed from modern computer-aided methods. I wonder if they relied on more scale model testing than we do today, or whether they required more changes after construction had already started.
my grandfather was an engineer for the port authority in New York City, and worked on many famous bridges here(the gw, throggs neck, Verrazano). videos like these make me appreciate the work he did here even more.
Mine was a steel worker, who built those sorts of things. He helped build most of the main buildings in his town, in central Louisiana. I miss him dearly 😞
@@J.C... my grandfather also worked on the twin towers. he worked for the engineering firm that built the first 3 or 4 floors. he was a jewish immigrant from cuba whos dream it was to come here and build the bridges and skyscrapers he so greatly admired. he died last year, and i miss him dearly too.
Maybe I'm biased, but I don't understand how people complain about the fact that we don't make beautiful monuments anymore. Building something like this bridge is a far more impressive and inspiring feat of the human species.
infrastructure is a massive upfront investment with no immediate return. now consider neoliberal capitalism. the conclusion is left as an exercise for the reader.
@@paradoxica424 So it means when the Golden Gate bridge was built there was no capitalism in America? What then, socialism? Modern America can't build such structures because it had to admit that it needs white men to build. BLM and feminists won't do the work.
The way he appreciates, credits and mentions the chief engineer, divers and even the cable workers proved the knowledge is nothing without discipline, execution, teaching and spreading them. He deserves an Oscar for such a animation film
The production of this video is awesome. Thank you for such a great explanation. This video should be on display for visitors of the bridge. I would have definitely appreciated the bridge even more if I’d seen this video.
They started painting it 86 years ago and have never finished because by the time the last part is painted the first part needs paint again. Imagine being a professional painter and spending your entire career painting only one structure.
They give Strauss far too much credit here (a common mistake)! Strauss did come up with the concept of bridging the golden gate, and was its chief promoter, a herculean task in itself! However, he primarily designed cantilever bridges and did not have the engineering experience to create the suspension bridge that was built. Charles A. Ellis was the primary engineer. Also, they show the traffic flowing in the wrong direction on the bridge. Our steering wheels are on the left in San Francisco!😂 Other than that, a very interesting video!
Yes, when I reached the 6:17 mark, I thought, "The cars are driving the wrong way!" (^: Digital effects might have been created in the UK or some other country where they drive on the left. If built today with polymers, it could be a cable-stayed bridge. But the people might revolt about that. Or they could make it with lighter materials and have the same design, but towers closer to the shore to save money. It costs a lot to maintain this bridge so they might replace it some day.
Great video presentation. They forgot to include the bridge road to be slightly arched, like an old arch bridge design. It may lessen the tension of the cables and reduce damage when the road deck steel expands. When the finger expansion has no more room for expansion, the steel road deck will push horizontally and may damage the two towers. When the road deck is slightly arched, it will just push up to lessen compression. The designers are very smart. It's a combination of an arch bridge and a suspension bridge.
It's mainly to avoid 'slump' when the load is very heavy. It becomes level when maximum load is on it.......except when 300K people were on in. Slump of 6 meters is huge, but it didn't apparently crack! (I would LOVE to know the concrete mix and steel usage that held w/o cracks). Along with this bridge, the Empire State Building is on the list of top 7 (ASCE) civil engineering wonders of the world. The ESP was built, and open for business in just 14-1/2 months, during the depression, followed by W2....leaving the owners with no profit until early 1950's. (Retired, structural: bridges/dams/high rise bldgs) Slide Rules ROCK!!
Thank you so much for this animation I was a union ironworker local 86 Seattle Washington I'm 67 Now so seeing all of this just brings back memories I even got to work on the Golden Gate a small retrofit job froze my ass off on on the south end thanks for presentation
A very enlightening education! Just incredible how brilliant these engineers are. They are the heroes that make our lives better, not pop stars or movie stars!
Never cared about this kind of stuff but last year i rode my bicycle from Canada to Mexico and i remember crossing the GGB at around ten miles an hour and actually able to stop to admire it and not be moving with traffic, but it was one if the best parts of my trip. On the north side of the bridge is this cool little park where you can stand at the base of the supports and just really get to admire the whole thing. Super cool video thank you.
i love how my man mr strauss is over here with a confident smile on his face every time a concern is brought up ... "oh yeah, temperature changes? finger locks, already solved it."
The Golden gate bridge is so iconic. Such a beautiful landmark. Since I was a child, I always wanted to go to San Francisco. I always loved SF but always wanted to see the Golden gate bridge. I went last year and made my dream to see SF and Golden gate bridge a reality. I cried so much as soon as I seen the Golden gate. If you guys haven't already, I highly recommend going to SF. Not just for the bridge (even though it is so beautiful and that was my main reason for going), all the other attractions and culture is amazing. I made so many great friends in SF
No doubt it is an engineering marvel. This makes me proud to be a Civil engineer student. This motivates me to study harder. While studying I just imagine that this 5 page numerical defines the lives of thousands of people who are going to use it.
Wow. I didn't know the bridge was such an impressive engineering feat. It deserves its place among the Wonders of the (modern) World. And they did all of this without computers.
This may be the most random video I’ve clicked on in years but man is it fascinating. The thought process/intelligence to come up with these solutions for all of the issues at hand is really a marvel. I never understood why the Golden Gate Bridge is considered a “Modern Wonder” of the world. I live in Northern California and have crossed it many times. Definitely took it for granted until this video. Thanks for this!
I really am appreciative of the work and effort of everyone who made that bridge. Also I appreciate the hard work it took to make this video as well. It was super informative and showcased everything perfectly.
Okay okay, so now I fully understand why cisco went with that logo. What a phenomenal engineering!! Hands down the best looking and stunning bridge out there imo. 👏❤💯
That was so random like I woke up and I checked my phone, I saw that and I was like bro I didn't know that I was awake at 1:30 am, I haven't gone to see the bridge but damn it's almost destroyed
How brave the people are when building the concrete base is crazy. When sailing small boats around the base, swells can get to where it’s like sailing up a hill.
I was always waiting for a civil Engineering video since I am a Civil Engineering student. Thankyou lesics for this. Joseph Baermann Strauss was a great Engineer. Respect to him 🙏.
No - Strauss was not the actual engineer of this bridge. He has credit bestowed upon him that he does not deserve. Had it not been for the work of Charles Ellis, the bridge would have been nothing but a twinkle in Strauss's eye. Ellis did all the stress calculations, and made many engineering decisions that Strauss got credit for. Ellis was a distinguished mathematician and structural engineer; Professor of Engineering at the University of Illinois. Ellis Hall, on the Engineering campus, was named for him. There would be no bridge without his work.
The real engineer who is chiefly responsible for the structural design of the Golden Gate Bridge no other than Charles Alton Ellis, he was not recognized for his work due to a dispute between Joseph Strauss. His contributions were ultimately recognized at the bridge in a plaque installed in 2012.
Another interesting engineering tidbit involves the bridge's south anchorage. Upon site inspection, Strauss realized that the Civil War-era Fort Point stood on where he had planned to build the south anchorage for the suspension cables. Wanting to preserve the fort's architecture, he redesigned the south anchorage, incorporating an arch structure so that the bridge could pass over the fort, thereby preserving it. The redesign also moved the suspension anchorages further to the south. (Note: it's also been hinted that preserving the fort saved the Golden Gate Bridge district a ton of money. The bridge was being built on US Army property -- the Presidio to the south and Fort Baker to the north. As part of the agreement with the Army to build the bridge, the bridge district was required to compensate the Army for any property they had to demolish during construction. Needless to say, demolishing old Fort Point would have been quite costly for the project.)
It’s crazy to think about every movie it’s been destroyed in. The Golden Gate Bridge has been destroyed in the following films. It Came from Beneath the Sea (1955): Destroyed by a giant octopus. Battle in Outer Space (1959): Destroyed by a meteor from space. Superman (1978): Partially destroyed by an earthquake. The Core (2003): Destroyed by unfiltered solar radiation from the Sun. 10.5 (2004): Destroyed by a major earthquake. X-Men: The Last Stand (2006): Destroyed and moved to Alcatraz by Magneto, one of X-Men's villains. Shown to be rebuilt at the end. Mega Shark Versus Giant Octopus (2009): Destroyed by a giant monster attack. Monsters vs. Aliens (2009): During a battle with the probe, it topples over onto the span, resulting in the south tower's collapse. Meteor Storm (2010): Destroyed by a meteor shower. Pacific Rim (2013): Destroyed by a giant kaiju. Godzilla (2014): Destroyed by Godzilla after it cuts through the span. San Andreas (2015): A mega-tsunami carrying a cargo ship hits the bridge, causing it to collapse. Terminator Genisys (2015): Destroyed by a nuclear missile. Sharknado 5: Global Swarming (2017): Destroyed by a Sharknado worldwide.
@@jayzayproductions5454 Omg clown, it's just fake movies, they didn't actually destroy it so many times, I swear some people on here have the lowest IQ ever
Just started learning framework of bridges in my school, and i was very curious on how bridges are made ever since then. This really helped me understand alot.
This video is so remarkable. The pictures are on point as if youre looking to real picture of the golden gate, and it also answered some of my questions like how the laid the thick cables on the towers
Man, you are brilliant. One of the best TH-cam channels. Not just my grandson (who loves everything engineering) enjoyed the video, but I also learned a LOT of interesting things.
this is becoming my favorite channel on yt. thank you guys so much for the work that you do! these videos are incredible and honestly so well-made that it's kinda shocking. please keep making these!
Love this! I have visited GGB many times in late 80s early 90s. I remember the story about the 50th Anniversary. As I remember it, the officials were in constant contact with civil engineers across the Bay Area. They key was not to start a panic among the visitors on the bridge which could have caused widespread trampling. The officials closed the bridge to walking traffic and slowly allowed visitors to walk off the bridge, thus releasing the stress. I remember walking across one time and nearly pooping myself as the bridge bounced as trucks and traffic whizzed by. As I called out to my parents, my father said “I’d be more worried if it wasn’t bouncing.” He then showed me the expansion joints and explained their design. It was still a harrowing experience, but I never forgot that lesson and could only imagine those visitors during the anniversary. How many saw that the joints were completely compressed? Did they have any clue? If they did, how did they stay calm? Just amazing. I went on to become a teacher and I especially loved teaching children about engineering and especially bridge design. Thank you for this awesome video. Side note, were you aware that many of the past and current bridge workers were of Asian descent? Many from South Asia. I hope this wasn’t a culturally inappropriate statement from my father, but he said it was because of increased balance. I pray that I am not passing on a culturally inappropriate belief, cause if true, I would see it as an incredible point of pride. If it is inappropriate, please know I hold all peoples from all cultures in the highest regard. Thanks again for this wonderful video. I look forward to watching the others.
Stop being such a sniffling wimp because you repeated something your father said. What you said isn’t “inappropriate” and is actually pretty interesting. I’d like to hear more
Another fact you missed out on was that the bridge also accounted for the curvature of the Earth, I copy and pasted this equation of the length of the bridge showing the towers are a different height, a mere 4.7 cm, but the engineers even thought about that when building the Golden Gate Bridge - 1280m main span, 227 m height -> 4.7 cm. While the longest suspension bridge in the World the Akashi Kaikyō Bridge its span is so wide there is a nearly 9 cm of difference in the hight of the towers - 1991 m main span (world record), 283 m height -> 8.8 cm. having a poke at flat earthers :)
9:20 You can learn this section at home by hanging heavy pictures or mirrors with picture wire. The weight of the load is always the same but the tension in the cable depends on how it is oriented. Vertical would be supporting the weight fully. But with added angle, only a portion of the tension is holding the vertical load weight.
I always admired the truly breathtaking engineering feats that were made during the late 1800s and early 1900s. It was truly a time of brilliant minds transferring the nation to what it is today. Example: The Empire State Building, The Eifall Tower and many other feats of engineering..
I remember walking all the way across the golden gate bridge when I was a kid then a few years later moved to Texas and some dumb ass kid at school kept insisting that the golden gate bridge was actually made of gold. I wanted to strangle the shit out of him because I had already been on it; under it and all around it. I even saw the cross section in Golden Gate Park and knew it was called the "Golden Gate Bridge" because California is where the gold rush started, which is why it's referred to as the "Golden State".
Literally every kid in the Bay Area used to say that 😂 it’s hidden underneath the red shhhhhh! Definitely a work out to walk all the way across that thing. Ugh I miss the Bay Area my hometown soooo much. The golden gate park is beautiful, lots of hippies and hobos though but that’s what gives it its golden quirks 😂
its not called the golden gate cause of the Golden state, the bridge is named after the Golden Strait its built over which was named that before gold was found in California
@@adityavikramrajawat To be even more precise, the Golden Gate Bridge is the bridge over the Golden Gate. en.wikipedia.org/wiki/Golden_Gate . As for the name, "In his memoirs, John C. Frémont wrote: "To this Gate I gave the name of 'Chrysopylae', or 'Golden Gate'; for the same reasons that the harbor of Byzantium was called Chrysoceras, or Golden Horn." He went on to comment that the strait was “a golden gate to trade with the Orient”."
Engineering is interesting, interesting is engineering! Thanks for this amazing creation, not everyone is so fluent in making complex things seem easy!
Hello everyone, Lesics is in a brink of shutting down. Your help at Patreon is crucial for us - www.patreon.com/Sabins
Hoping for your support, Cheers Sabin Mathew
All your videos are really Great...and a Big hiiii to the girl in this video @Yogita🥳😘
Architect here, with an emphasis on structural engineering. Bravo!
Amazing🔥🔥🔥
Sir make a video about speedometer
Love your video! Thank you! 😍
I appreciate that they went above and beyond to create a 3D version of the engineer, just so we can see him proudly cross his arms..
If you ask me, that's time well spent!
I crossed my arms with him @2:21 so that I could feel as proud as he did 😅
IT WAS FOR THE FIST BUMP
Agreed. It was a high point
🤣
They made all this in a time when there was no CAD and other simulation softwares. It's truly remarkable.
This was made in modern era, after industrial revolution, it's not that impressive, it's way more remarkable what Romans achieved.
All you need is a pen and paper
Just do it the traditional way which is oh dear.
@@Zuconja Right, the Romans made poop sewers. Truly remarkable...
@@Zuconja both can be impressive
Very realistic animation. Especially the part where one worker ran the cable while 2 others just stared at the water. 😂
@@stuka1111 clearly missed the joke there...
@@stuka1111 the animation is Great. I was making a joke about how there is usually a bunch of construction workers standing around doing nothing. At least in the US.
@@moxxy3565 E.v.e.r.y.w.h.e.r.e!!!
@@moxxy3565 I mean, if I was paid their wage and had literally no worker rights in comparison to Europe I would also stop giving a shit.
@@crylune then go to europe🤣
Designing and rendering a 15 minute animation like this is also quite a feat of engineering, especially one with as much detail as this one. Thank you so much for all the hard work and time putting this together
AI Puts all these types of infovideos together
@@Getohracer33umm are you sure???
@@Getohracer33 it doesn't (yet)
I'm not even that into civil engineering but this was REALLY fascinating to watch and learn about.
stop the cap, that was awful
@@HungryTv13 huh? if you're talking about the animations solely then maybe, but if the animations is all you got from this video then god help you.
Same here bro
I am a Mechanical Engineering student myself, and this is fascinating tho
Its structural engineering
Joseph Strauss was officially the Chief Engineer, based primarily on his long history of building drawbridges throughout the country. But for the GGB, Strauss had absolutely no involvement with its design. The suspension design was proposed by Leon Moisseiff, a Latvian immigrant who had been involved on other large suspension bridges in New York, and it was he who had the idea of an elegant suspension bridge. The real brains behind turning the concept into a well-designed structure, however, belongs entirely to Charles Ellis, a meticulous structural engineer who personally made all the static and dynamic load calculations, including solving some equations with 37 variables…all done without the benefit of computers. Strauss became so irritated with the attention Mr. Ellis was getting from the press and other engineers that Strauss canned him. It wasn’t until the 75th anniversary of the bridge’s completion in 2013 that a plaque was installed on the bridge to honor Charles Ellis as the true designer.
Wow, what do you know.
Thanks for sharing the truth about this!
care to share some links?
if this is true then this absolutely needs to be pinned. the uploader puts too much credit on the strauss guy throughout the video without mentioning the other chief minds behind this engineering marvel.
Woah, i search it and its true, thanks for sharing it
In the history I have learned, its always TWISTED stories that are given importance, and the REAL people behind the projects like this are always hidden under carpet. Joseph S must be a wealthy guy with lots of influence, so his name will live forever while the Real Designer & Engineers will die unhonoured. This is bullshit world that we live in everyday - Thanks Hylie Doobius for honouring the Real people.
14:33 I attended the bridge's 50th anniversary in 1987. When the bridge operators approved the temporary closure to vehicles, they estimated 50,000 would attend. The actual number was estimated at peak, close to 800,000 had come, far more than could even fit on the bridge. You can find photos that show masses of people stretching back on to land, unable to reach the span. I attempted to cross the bridge - end to end. It was so crowded that after two hours, I only made it from the toll booths to mid span. The sag was visible. Could you imagine if the cables snapped, killing several hundred thousand? Even though the bridge held up fine, the bridge operators said they will NOT repeat such an event.
They will repeat it in 2037 for 100th anniversary of the bridge. You'll see.
@@PaschanTOPs My bet is that they won't. On many levels, the '87 celebration was too great a safety hazard. While I am unaware of any deaths, I did see a paramedic team try to take someone out on a stretcher. People did their best to get out of the way, but it was dismally slow. Bridge operators and the city of S.F. can't risk another 'open house' on the span. Maybe they'd close it for a televised parade - like the Thanksgiving Macy's parade down Fifth avenue. The center would be cordoned off to pedestrians, but a long stretch of the roadway beyond either side of the bridge is also closed to traffic. This enable all attendees yo view the parade.
I was stuck in mid span for over an hour. I was terrified because not mentioned was the center span was swaying side to side. I think mass intelligence sensed that it would unsafe to institute a Wave as fans at sporting events did in their seats. I think the induced additional forces of the wave would have brought down the bridge. I had claustrophia
Also not mentioned that about 6 months prior the concrete roadway was replace with steel plating to lighten the load and strain
I bet if they do it again in '37, it'll be run differently, such as: limited access via tickets distributed in advance; timed entry for each ticket; half the tickets provides entry from the south, the other half from the north, and people will either loop back at the midpoint, or walk at pace to the opposite end (which way is TBD.)
The hard part is that participants will have to maintain a certain pace, so as to get off the bridge and permit later ticket-holders access. I don't know how they can enforce this part, but this would be critical.
Anyone else here after Baltimore's Key Bridge accident and collapse?👀 Great video, by the way. Very insightful!
I came looking for this comment
i bet that’s why this was in my feed yea
Bro I remember waking up that morning at 8, check my phone and see that this happened here in Baltimore. I was shocked af
Whoah, Lesics would make anyone fall in love with physics. Brilliant production, perfectly explained. Free content can't get better than this.
This is not physics. It’s engineering. You are in the wrong place.
@@nerdy4172 it's engineering with an emphasis of physics. The channel's name literally is LESICS(Learn Engineering through Physics). So don't try to act smart lmao, and understand the point.
@@nerdy4172 it's Learn Engineering through phySICS (LESICS)
@@nischalk1336 He is still right. This is engineering, not physics. Engineering merely uses physics, which is not the same as learning physics.
@@ArfatXeon Point that out to the creator of this channel, not me. I'm merely representing what LESICS actually stands for.
I'm very interested in the work of those divers. I just can't wrap my mind around doing construction in those underwater conditions. Amazing!
Same here. I’m going to look for a video or picture of them now lol
Sounds absolutely insane. I wanna know how many people died creating this bridge. If none, that’s an amazing feat or an amazing lie
@@1rage17 did people really died?
@@rahulkulk745 11 men died. Most old large scale construction jobs have fatal accidents.
Seven died building the MGM grand in Las Vegas.
He was a genius he didn’t have todays technology much respect to the designer and his family the Golden Gate Bridge is a wonder of our world
Thinking of his imagination is on other level. 💪
Was he ? We know from experience that such monumental project would have required teams of engineers. Not just one random smart dude...
@@VesperTV_ you do have a point there but theirs always the main person ….like president ….like coach…..like superintendent….like mob boss….so on so on
@@DanO530.8To put it simply, there’s always someone with a vision and a plan. The teams of workers are just the people constructing it. Not to undermine their efforts though they played a very big role in the Golden Gate’s construction.
@@VesperTV_ *Team are like a herd of sheep, they need guidance*
Kids are probably forced to watch this in school. I'm just binging recommended videos at 3am until I fall asleep.
This man with his engineer colleagues designed this bridge without advanced CAD and simulation programs and computers. Using just pencils, papers and editing tools like rulers and drawing compasses. Today it is still standing there and get the job done, between those harsh environments.
Even more amazing is humans reaching the moon using computers that were 100 times less powerful than your sixth gen iphone.
@@harixav thousands of times less powerful
@@harixav moon landing the biggest hoax
If he had used "advanced CAD and simulation programs and computers" the bridge would have collapsed already.
Harixav, the computer that "went to the moon"" had as much computing-power as the key-fob for your car.
Fun fact. The Golden Gate Bridge undergoes constant maintenance. There is a crew that works from one end of the bridge to the other. They repair and replace rusted out pieces and repaint as they go. This is a never ending loop. When they reach the end the crew goes back to the other side and begins the process all over again.
Pretty cool
you just explained pretty much every bridge in NYC
Fun fact for you: Though the GGB has a longer span between main towers, the Mackinac Bridge sports a total length 3 times that of the GGB(5 miles long). I have crossed a few times. Every time there is a maintenance crew working on the bridge. What they do is they paint the bridge every year, starting on one side, ending the year on the other side.
Job security
Sounds like a steady job
8:46 Total Jump scare
I'm having an anxiety and heart attack when he drop that thing
Lol
Dang, my heart dropped
Thanks!
I appreciate how the sharks just calmly watch the divers working to place the bombs, like "Leave em alone, they're doing complicated work here.."
LOL
Additional facts:
At the time of the Golden Gate Bridge's construction, no steelworks on the West Coast could produce components large enough to construct the towers, so they were shipped via the recently finished Panama Canal from the East Coast (New York specifically I belive)
The Red color originally was to be a temporary coat to protect the bridge while a final color could be chosen (the navy suggested yellow/black stripes for visibility reasons) but it was stuck with as the locals were fond of it
The Bridge was constructed with an unprecedented (for the time) emphasis on worker safety, to the point as far as I'm aware there was only one fatal accident during construction.
Says on Wikipedia that apart from this one fatal accident, there was also a constructive part with 10 people on in, that fell into the net. The net didn't hold up, so all of them fell to their death. Still those 11 deaths were far below the 36 fatalities they estimated before construction.
@@officialnickname Thank you for this info. I was wondering when the video would say how many people died in the process of construction. Idk, I think it's important to remember the fallen and their sacrifice to appreciate their success. 🙏
Steel came from Bethlehem and transported to Philli where it was shipped to SF.
😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😅😅😅😅😊😊😊😊😊😊😊😊😊😊😊😊😊
11 of the 36 estimated is good, but I'm sure it wasn't any less significant to their families@@officialnickname
It's astonishing how everyday things that surround you and that you normally don't think much about have such ingenious stories behind them!
Exactly
Like burj khalifa
@@vincalib1013 made by samsung burj Khalifa
I quote you
Infact the ♾️ atoms all around us have a story as well. Everything.
My Grandfather (1890 - 1964) wrote a book on the engineering of the bridge contemporarily with its costruction. (1935). He was an engineer for the City of San Francisco. BTW. I don’t think they used roller compacted concrete. I inherited a small piece of one strand of the cable and splice from my mother. The Golden Gate Bridge will always be the standard for beautiful infrastructure. His book is still for sale at the gift shop.
Roller compacted concrete?when it is wet We use big long vibrator (nothing sexual )thing say my boss that it is use to help the concrete compact it self and get rid of air boobles or something like that .
BTW I like your comment, you’re lucky and sure to feel great to know that your family was part on that amazing bridge
@@TheAlonso1813 air boobles? Boobies?
My research showed that RCC was not used on the deck. RCC is usually for unreinforced concrete. Good documentary video and narration. However, I think it should have mentioned the use of the catenary formula that was used and the involvements for Eng. Charles Ellis and that Strauss died the following year.
What's the title? I'd like to see if it's in my local library here in New York City.
I'm here after the Bridge collapse in Baltimore. Very very tragic 😞
Big difference between the main pillars of the two bridges right?
@@henryhenderson7051 I'm not sure at this point. Looks like a similar structure. The B-more bridge had more pillars underneath
@@HimDead1228that was the most random and unexpected thing that happened here in Baltimore like i wasn't expecting that but seems like they crashed the ship on purpose since you can watch as the cargo ship turns towards the pillar
@@sockk4power turned off.
@@fouranglesquare no the currents were pushing the ship around since there were currents there and the power went off twice but the moon lit up the sky so they could see where they were going
9:08 the first bump was awesome!!!
Thank you for not boring us on the history of the bridge and chief engineer 😂 i love this video . Straight to the point 🎉
That is why i as civil engineer really fall in love with these kind of mega structures.
Only those who worked on structures know how they built it. For normal people it is just bridge to connect with each other but for us it is more than that it is our emotions, our commitment and love to our country.
indeed!!!
I'm construction worker, much better and easier work than engineer
@@wooshbait36 your not getting paid as much
@@mastermind5421 False, depends at what exactly you do and in wich country. I get paid about equal with most engineers, I work more hours officially to be honest, but my friends that are engineers work a lot off the clock, even when they are home.
Only disadvantage in my book is that my work is almost always in dusty environment and more physical
Amazing! The wisdom knowledge and skill to get this done at that time (1930s) is beyond me!
Thank you Lesics for always making these well animated and explained videos!
I'd be interested to know how their process differed from modern computer-aided methods. I wonder if they relied on more scale model testing than we do today, or whether they required more changes after construction had already started.
my grandfather was an engineer for the port authority in New York City, and worked on many famous bridges here(the gw, throggs neck, Verrazano). videos like these make me appreciate the work he did here even more.
Mine was a steel worker, who built those sorts of things. He helped build most of the main buildings in his town, in central Louisiana. I miss him dearly 😞
Have you seen the new addition to the Guggenheim? I did that. Yep, and it didn't take very long either.
@@J.C... my grandfather also worked on the twin towers. he worked for the engineering firm that built the first 3 or 4 floors. he was a jewish immigrant from cuba whos dream it was to come here and build the bridges and skyscrapers he so greatly admired. he died last year, and i miss him dearly too.
My grandfather built the pyramids
@@J.C... liar
Always fun to see computer animation of the bridge construction. Reminding us that the actual design and work was done in the 30’s
Maybe I'm biased, but I don't understand how people complain about the fact that we don't make beautiful monuments anymore. Building something like this bridge is a far more impressive and inspiring feat of the human species.
infrastructure is a massive upfront investment with no immediate return. now consider neoliberal capitalism. the conclusion is left as an exercise for the reader.
for example, the stuff of space sci-fi presented in kurzgesagt’s videos are possible. but who would pay for it?
Square disposable structure is less math.
@@paradoxica424 So it means when the Golden Gate bridge was built there was no capitalism in America? What then, socialism? Modern America can't build such structures because it had to admit that it needs white men to build. BLM and feminists won't do the work.
lol intentionally conflating capitalism of a century ago with neoliberal capitalism. get fucked.
The way he appreciates, credits and mentions the chief engineer, divers and even the cable workers proved the knowledge is nothing without discipline, execution, teaching and spreading them. He deserves an Oscar for such a animation film
Bhai itna bhi nhi lol oscar.
@@dreadfulbodyguard7288 English please
@@islamicwhatsappstatusworld5736 he is saying that the TH-camr hadn't done anything more great to be awarded.
The production of this video is awesome. Thank you for such a great explanation. This video should be on display for visitors of the bridge. I would have definitely appreciated the bridge even more if I’d seen this video.
They started painting it 86 years ago and have never finished because by the time the last part is painted the first part needs paint again. Imagine being a professional painter and spending your entire career painting only one structure.
They give Strauss far too much credit here (a common mistake)! Strauss did come up with the concept of bridging the golden gate, and was its chief promoter, a herculean task in itself! However, he primarily designed cantilever bridges and did not have the engineering experience to create the suspension bridge that was built. Charles A. Ellis was the primary engineer.
Also, they show the traffic flowing in the wrong direction on the bridge. Our steering wheels are on the left in San Francisco!😂
Other than that, a very interesting video!
Yes, when I reached the 6:17 mark, I thought, "The cars are driving the wrong way!" (^: Digital effects might have been created in the UK or some other country where they drive on the left. If built today with polymers, it could be a cable-stayed bridge. But the people might revolt about that. Or they could make it with lighter materials and have the same design, but towers closer to the shore to save money. It costs a lot to maintain this bridge so they might replace it some day.
Great video presentation. They forgot to include the bridge road to be slightly arched, like an old arch bridge design. It may lessen the tension of the cables and reduce damage when the road deck steel expands. When the finger expansion has no more room for expansion, the steel road deck will push horizontally and may damage the two towers. When the road deck is slightly arched, it will just push up to lessen compression. The designers are very smart. It's a combination of an arch bridge and a suspension bridge.
It's mainly to avoid 'slump' when the load is very heavy. It becomes level when maximum load is on it.......except when 300K people were on in. Slump of 6 meters is huge, but it didn't apparently crack! (I would LOVE to know the concrete mix and steel usage that held w/o cracks). Along with this bridge, the Empire State Building is on the list of top 7 (ASCE) civil engineering wonders of the world. The ESP was built, and open for business in just 14-1/2 months, during the depression, followed by W2....leaving the owners with no profit until early 1950's. (Retired, structural: bridges/dams/high rise bldgs) Slide Rules ROCK!!
Also I wondered about wind. How did they factor that into the design?
Shout-out to the construction workers for risking their lives to make this project a reality
@Steve Robinson Yup
Thank you so much for this animation I was a union ironworker local 86 Seattle Washington I'm 67 Now so seeing all of this just brings back memories I even got to work on the Golden Gate a small retrofit job froze my ass off on on the south end thanks for presentation
Each procedure is so interesting that I'd love to watch entire videos explaining each step further. It's a marvellous structure!
It is so incredible that they were able to build this bridge with no modern technology. Huge respect for those people
Oh they had technology lol. The Romans are the ones who built great structures without modern technology.
A very enlightening education! Just incredible how brilliant these engineers are. They are the heroes that make our lives better, not pop stars or movie stars!
Never cared about this kind of stuff but last year i rode my bicycle from Canada to Mexico and i remember crossing the GGB at around ten miles an hour and actually able to stop to admire it and not be moving with traffic, but it was one if the best parts of my trip.
On the north side of the bridge is this cool little park where you can stand at the base of the supports and just really get to admire the whole thing.
Super cool video thank you.
i love how my man mr strauss is over here with a confident smile on his face every time a concern is brought up ... "oh yeah, temperature changes? finger locks, already solved it."
13:40 The support wire runner-layer is amazing. You can't find people today to do that kind of work.
Why he should run?
why can't I find people today ?
lol
Lol 😂 ikr !! Ppl it’s just a joke
@@ocamlmail coz of the slope, U can't really walk in those slopes if U have ever walked in these kinda slopes...
The Golden gate bridge is so iconic. Such a beautiful landmark. Since I was a child, I always wanted to go to San Francisco. I always loved SF but always wanted to see the Golden gate bridge. I went last year and made my dream to see SF and Golden gate bridge a reality. I cried so much as soon as I seen the Golden gate. If you guys haven't already, I highly recommend going to SF. Not just for the bridge (even though it is so beautiful and that was my main reason for going), all the other attractions and culture is amazing. I made so many great friends in SF
The poop kinda ruined it for me
I'm so honored to see this engineering introduce in this video. Thank you.
No doubt it is an engineering marvel. This makes me proud to be a Civil engineer student. This motivates me to study harder. While studying I just imagine that this 5 page numerical defines the lives of thousands of people who are going to use it.
@Levi Jesus christ man
Greatest video ever, the animations and the explanations are engaging.
Watching this, is intresting especially one day before exams..
14:06 GALVANIZED STEEL MENTIONED
He forgot the eco friendly wood veneers
Man the animation keeps getting better and better.
Feels like I time travelled to the construction of the bridge...
Thanks!
it wasn't just Joseph Strauss, there was a talented team of engineers and architects involved in this, give credit where it's due.
no
@@ImStuckInStockton edgy today aren’t we?
Wow. I didn't know the bridge was such an impressive engineering feat. It deserves its place among the Wonders of the (modern) World. And they did all of this without computers.
Being a civil engineer I really aspire to do such types of projects.
Bhai matt bana yaar plz hume hamre zindgi bhaut pyare hai 🤣
@@allroundergaminga2z
bro, don’t build (it). Plz, my life is very precious to me
I do not know what “hamre” means.
which college bro ?
@@maalikserebryakov "hamare" means "our" not "my"
Stop being delusional you never will come close, go back to your legos bro
This may be the most random video I’ve clicked on in years but man is it fascinating. The thought process/intelligence to come up with these solutions for all of the issues at hand is really a marvel.
I never understood why the Golden Gate Bridge is considered a “Modern Wonder” of the world. I live in Northern California and have crossed it many times. Definitely took it for granted until this video.
Thanks for this!
A well engineered vlog that I have seen on civil engineering. Thank You for sharing it.
I really am appreciative of the work and effort of everyone who made that bridge. Also I appreciate the hard work it took to make this video as well. It was super informative and showcased everything perfectly.
Okay okay, so now I fully understand why cisco went with that logo. What a phenomenal engineering!! Hands down the best looking and stunning bridge out there imo. 👏❤💯
I thought it was your mom's opinion
that thong tha thong thong thong
@@DudePressure *his mum brought him to this life, so the opinion cascaded to him*
@@criticalthinker1123 so he is lying than?
@@DudePressure what are you talking about?
It's incredible what human beings are capable of. We must appreciate all the magnificent work people in the past have made for our pleasure
What an amazing video describing this engineering marvel. Thanks for the incredible 3D work you did, it brought it to life.
So many engineering challenges solved with master level solutions, and on top of that a great animation to explain it all. Excellence!
No way this popped up on my recommendations after the Baltimore bridge incident 💀
That was so random like I woke up and I checked my phone, I saw that and I was like bro I didn't know that I was awake at 1:30 am, I haven't gone to see the bridge but damn it's almost destroyed
This was great. So much better with the animations.
0:32 idk why I found the guy running down the bridge so hilarious
Hes running like his life depends on it
@@Brejdu lmao seriously 🤣
The next subway sufer
Bros name is REEEEEE
2:16 I love how Joseph is just like a good 300 feet tall. makes sense.
Watching this video and gaining such information makes me even more happier being a civil engineer.😊
I love the pauses. It makes me feel like I'm watching adult Dora, and makes it apparent that I cannot actually answer any of these questions.
Be honest, you watched this because you saw what happened in Baltimore
💀
I haven't gone to see the bridge yet but damn it's totalled
Also I find it hard to believe it happened on my cat's birthday
How brave the people are when building the concrete base is crazy. When sailing small boats around the base, swells can get to where it’s like sailing up a hill.
Not a task for sensitive men
True grit .
Those men certainly had balls of steel.
I was always waiting for a civil Engineering video since I am a Civil Engineering student. Thankyou lesics for this. Joseph Baermann Strauss was a great Engineer. Respect to him 🙏.
I live in Karachi Pakistan and I like your comment
@@sayyamzahid7312 i live in india and i like your comment
No - Strauss was not the actual engineer of this bridge. He has credit bestowed upon him that he does not deserve. Had it not been for the work of Charles Ellis, the bridge would have been nothing but a twinkle in Strauss's eye. Ellis did all the stress calculations, and made many engineering decisions that Strauss got credit for. Ellis was a distinguished mathematician and structural engineer; Professor of Engineering at the University of Illinois. Ellis Hall, on the Engineering campus, was named for him. There would be no bridge without his work.
It was Charles Ellis who did this. Strauss is a glory hogger.
Another great childrens education vid from Lesics!
My 4 yr old loves these!
The foundation part is really intriguing. Its unbelievable what humans can achieve.
This is why I can't sleep because videos like this are so interesting and it 2:58 AM
A master piece of engineering and architectural design
Fabulous vid. I was told that the prisoners at Alcatraz would wile away the hours watching the bridge being built.
I love this animation! Why better than B-roll of stock photos of the same thing over and over
but girls think this is borin n nerdy tho
@@jake9854 eff em
I wish there were videos like this when i studied engineering 5 years ago
@pyropulse Everyone who watches these videos are not engineers. So it has to be simplified, right?
The real engineer who is chiefly responsible for the structural design of the Golden Gate Bridge no other than Charles Alton Ellis, he was not recognized for his work due to a dispute between Joseph Strauss. His contributions were ultimately recognized at the bridge in a plaque installed in 2012.
thanks wikipedia
Man, this is really impressive how they thought of all these problems to fix to build such a bridge
Another interesting engineering tidbit involves the bridge's south anchorage. Upon site inspection, Strauss realized that the Civil War-era Fort Point stood on where he had planned to build the south anchorage for the suspension cables. Wanting to preserve the fort's architecture, he redesigned the south anchorage, incorporating an arch structure so that the bridge could pass over the fort, thereby preserving it. The redesign also moved the suspension anchorages further to the south.
(Note: it's also been hinted that preserving the fort saved the Golden Gate Bridge district a ton of money. The bridge was being built on US Army property -- the Presidio to the south and Fort Baker to the north. As part of the agreement with the Army to build the bridge, the bridge district was required to compensate the Army for any property they had to demolish during construction. Needless to say, demolishing old Fort Point would have been quite costly for the project.)
i want an explanation like this FOR EVERY SINGLE THING
How stuff works
It’s crazy to think about every movie it’s been destroyed in.
The Golden Gate Bridge has been destroyed in the following films.
It Came from Beneath the Sea (1955): Destroyed by a giant octopus.
Battle in Outer Space (1959): Destroyed by a meteor from space.
Superman (1978): Partially destroyed by an earthquake.
The Core (2003): Destroyed by unfiltered solar radiation from the Sun.
10.5 (2004): Destroyed by a major earthquake.
X-Men: The Last Stand (2006): Destroyed and moved to Alcatraz by Magneto, one of X-Men's villains. Shown to be rebuilt at the end.
Mega Shark Versus Giant Octopus (2009): Destroyed by a giant monster attack.
Monsters vs. Aliens (2009): During a battle with the probe, it topples over onto the span, resulting in the south tower's collapse.
Meteor Storm (2010): Destroyed by a meteor shower.
Pacific Rim (2013): Destroyed by a giant kaiju.
Godzilla (2014): Destroyed by Godzilla after it cuts through the span.
San Andreas (2015): A mega-tsunami carrying a cargo ship hits the bridge, causing it to collapse.
Terminator Genisys (2015): Destroyed by a nuclear missile.
Sharknado 5: Global Swarming (2017): Destroyed by a Sharknado worldwide.
Did you watch all these movies and took notes or did you remember it all?
I know right, it’s insane that they were able to rebuild it so many times without error after all the movies they destroyed it for! Truly amazing
@@jayzayproductions5454 Omg clown, it's just fake movies, they didn't actually destroy it so many times, I swear some people on here have the lowest IQ ever
Most movies you mentioned are American, and Golden bridge is in China so how they destroy it?
@@wooshbait36 are you high?
This will be the replacement for the Baltimore bridge
Just started learning framework of bridges in my school, and i was very curious on how bridges are made ever since then. This really helped me understand alot.
This video is so remarkable. The pictures are on point as if youre looking to real picture of the golden gate, and it also answered some of my questions like how the laid the thick cables on the towers
I’m studying my 1st semester as a civil engineer. I’ll come back when I graduate. Wish me luck.
14:08 *_GALVANIZED STEEL WIRE ⁉️⁉️⁉️⁉️ LITTLE JOHN REFERENCE ⁉️⁉️⁉️⁉️⁉️_*
Man, you are brilliant. One of the best TH-cam channels. Not just my grandson (who loves everything engineering) enjoyed the video, but I also learned a LOT of interesting things.
this is becoming my favorite channel on yt. thank you guys so much for the work that you do! these videos are incredible and honestly so well-made that it's kinda shocking. please keep making these!
Dude, this video is awesome, easy to understand for everyone.
Love this! I have visited GGB many times in late 80s early 90s. I remember the story about the 50th Anniversary. As I remember it, the officials were in constant contact with civil engineers across the Bay Area. They key was not to start a panic among the visitors on the bridge which could have caused widespread trampling. The officials closed the bridge to walking traffic and slowly allowed visitors to walk off the bridge, thus releasing the stress. I remember walking across one time and nearly pooping myself as the bridge bounced as trucks and traffic whizzed by. As I called out to my parents, my father said “I’d be more worried if it wasn’t bouncing.” He then showed me the expansion joints and explained their design. It was still a harrowing experience, but I never forgot that lesson and could only imagine those visitors during the anniversary. How many saw that the joints were completely compressed? Did they have any clue? If they did, how did they stay calm? Just amazing.
I went on to become a teacher and I especially loved teaching children about engineering and especially bridge design. Thank you for this awesome video.
Side note, were you aware that many of the past and current bridge workers were of Asian descent? Many from South Asia. I hope this wasn’t a culturally inappropriate statement from my father, but he said it was because of increased balance. I pray that I am not passing on a culturally inappropriate belief, cause if true, I would see it as an incredible point of pride. If it is inappropriate, please know I hold all peoples from all cultures in the highest regard.
Thanks again for this wonderful video. I look forward to watching the others.
Stop being such a sniffling wimp because you repeated something your father said. What you said isn’t “inappropriate” and is actually pretty interesting. I’d like to hear more
In a few years the bridge will have been built by everyone except white men. Because they're the Boogeyman.
Golden Gate Bridge LORE
Another fact you missed out on was that the bridge also accounted for the curvature of the Earth, I copy and pasted this equation of the length of the bridge showing the towers are a different height, a mere 4.7 cm, but the engineers even thought about that when building the Golden Gate Bridge - 1280m main span, 227 m height -> 4.7 cm.
While the longest suspension bridge in the World the Akashi Kaikyō Bridge its span is so wide there is a nearly 9 cm of difference in the hight of the towers - 1991 m main span (world record), 283 m height -> 8.8 cm.
having a poke at flat earthers :)
Flat earth was a name given by its opponents, they just say its not a sphere, try again globetard :P
If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.
Romans 10:9 N
accounting for the curvature of the Earth is very intuitive, obvious. there is literally a million things you have to consider
Please show the math on the suez canal to clear things up further.
Grab the earthcurve numbers chart, please, so folks can see. Thankyou much! :)
@@carlosfranciscocardoso Intuitive?
Thank you for your efforts in showing beautiful animations
The videos made by lesics are always legendary
nothing could prepare me for that 8:40
9:20 You can learn this section at home by hanging heavy pictures or mirrors with picture wire. The weight of the load is always the same but the tension in the cable depends on how it is oriented. Vertical would be supporting the weight fully. But with added angle, only a portion of the tension is holding the vertical load weight.
I always admired the truly breathtaking engineering feats that were made during the late 1800s and early 1900s. It was truly a time of brilliant minds transferring the nation to what it is today. Example: The Empire State Building, The Eifall Tower and many other feats of engineering..
I am very, very confused on how you think the Empire State Building was made back then.
I remember walking all the way across the golden gate bridge when I was a kid then a few years later moved to Texas and some dumb ass kid at school kept insisting that the golden gate bridge was actually made of gold. I wanted to strangle the shit out of him because I had already been on it; under it and all around it. I even saw the cross section in Golden Gate Park and knew it was called the "Golden Gate Bridge" because California is where the gold rush started, which is why it's referred to as the "Golden State".
Literally every kid in the Bay Area used to say that 😂 it’s hidden underneath the red shhhhhh! Definitely a work out to walk all the way across that thing. Ugh I miss the Bay Area my hometown soooo much. The golden gate park is beautiful, lots of hippies and hobos though but that’s what gives it its golden quirks 😂
😂😂😂😂
Prolly built from the massive amount of wealth that came from gold tho
its not called the golden gate cause of the Golden state, the bridge is named after the Golden Strait its built over which was named that before gold was found in California
@@adityavikramrajawat To be even more precise, the Golden Gate Bridge is the bridge over the Golden Gate. en.wikipedia.org/wiki/Golden_Gate . As for the name, "In his memoirs, John C. Frémont wrote: "To this Gate I gave the name of 'Chrysopylae', or 'Golden Gate'; for the same reasons that the harbor of Byzantium was called Chrysoceras, or Golden Horn." He went on to comment that the strait was “a golden gate to trade with the Orient”."
Not only that it is tough, the design is really elegant & looking contemporary up to this modern day. Iconic, forsure! Those are true masterbuilder 🎉
Engineering is interesting, interesting is engineering!
Thanks for this amazing creation, not everyone is so fluent in making complex things seem easy!