What Really Happened at the Suez Canal?

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Exploring the engineering principles behind the recent obstruction of the Suez Canal, which caused a weeklong disruption in global shipping traffic. I give a brief overview of the bank effect and dilatancy of coarse-grained soils. Hopefully, the video helps you understand a few of the engineering challenges associated with navigating massive ships through tiny canals and what can happen when they run aground!
Errata:
- I incorrectly described the landform as the "Suez Peninsula." It is the "Suez Isthmus."
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Practical Engineering is a RU-vid channel about infrastructure and the human-made world around us. Hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!
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This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes.
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Producer/Host: Grady Hillhouse
Assistant Producer: Wesley Crump

Опубликовано:

19 апр 2021

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Комментарии : 4,6 тыс.

@PracticalEngineeringChannel 3 года назад

🌊 Enjoy videos with hydraulic demonstrations? Check out the playlist for more! ru-vid.com/group/PLTZM4MrZKfW_XJht-K7a9_egIsFqze0nQ 🐥 Want to keep up with my other projects? Follow me on Twitter: twitter.com/HillhouseGrady

@kholdanstaalstorm6881 3 года назад

Tip for bulbous bows on ships, check out Ulstein Group's X-Bow design! No bulb but a wedge prow that ends much higher than the regular ones like on the Ever Given.

@ElectricalExistence 3 года назад

the ship, evergiven. haha.

@MichaelOnines 3 года назад

Thank you for making explicitly clear when you cross into speculation territory.

@MaximumBan 3 года назад

Thank you for all you teach the untaught.

@AnalystPrime 3 года назад

It has been how many days since that ship was first on the news, and this is the first time anyone explains instead of wonders why it reads "EVERGREEN" on the side of the ship... Good video, thanks.

@narcissistectomy5134 3 года назад

The inability to overcome pull-out force is the primary reason I’m now a father of three.

@raypitts4880 3 года назад

also called gravity

@gmcinnis6304 3 года назад

lucky not... 19 kids and COUNTING... time for SNIP SNIP!!! an hour in "the shop" taker ur magazine/headphones, drop ur drawers and... pressure test in a month. all done.

@ttbko 2 года назад

Eeew!

@LittleCrowYT 2 года назад

Fortunately, far less expensive than the Ever Given incident

@oleksandrmartynov1005 2 года назад

Nice

@themrproamateur 3 года назад

That picture of the excavator digging out the ship is actually really inspiring, depending on how you look at it

@alwayscensored6871 3 года назад

Pretty brave operator, any moment he could be buried under a pile of containers.

@themrproamateur 3 года назад

@@alwayscensored6871 true. Homie also could’ve just waited for the actual rescue team to arrive but he took it upon himself to do what he could, with what he had

@wirito 3 года назад

@@themrproamateur the little excavator that could

@jjwalter5897 3 года назад

A Man And A Shovel Excavating. No job too big!

@Thestuffnope 3 года назад

The operator of that excavator is getting a bonus, i believe.

@atlas2296 3 года назад

That excavator really puts the size of the ship into view

@fallingwater 2 года назад

And the fun part is that despite the memes, that's not a small excavator. Stand close to it and you'll think it a big machine - it's just being dwarfed by the absolutely mega-massive ship.

@BIOSHOCKFOXX 2 года назад

@@fallingwater It just shows how a large machine in a comparison to human is, but placing it next to a even larger transporting vehicle can dwarf easily that large machine, while at the same time showing how much larger is the large transport vehicle.

@KoeSeer 2 года назад

i wonder if there are cases of crew missing inside the ship due to sheer size.

@zax5428 2 года назад

The collosal titan can lay down on the ship... Side ways

@atlas2296 2 года назад

@@zax5428 ik, I watched the corridor crew vid

@brianjordan2192 3 года назад

1970s; we need a bigger boat. 2020s; the boats too big.

@dmytrogubskyi4355 2 года назад

Neh) they’re still building bigger ones) and there is a bigger generation already working)

@brianjordan2192 2 года назад

@@dmytrogubskyi4355 which is a problem, because the worlds shipping canals cannot support them.

@PupOrionSirius26 2 года назад

#Accurate

@BlairdBlaird 2 года назад

@@PupOrionSirius26 not really, the canals define what ship sizes can go through (that's what size categories like suezmax, panamax, malaccamax, ... are: maximum allowable dimensions for ships going through a canal or strait). And when technically and financially possible the canals can get reworked so the size categories can be increased (e.g. the Panama canal's new locks leading to the neopanamax category), or so ships can travel both ways ("new suez canal"). Not unlike english house sizes, ship sizes are not randomly distributed and will be kept below the relevant category as much as possible.

@thelittleredhairedgirlfrom6527 2 года назад

We need a smaller boat

@HonestlyYrTrippin 3 года назад

Hey, Shipping Analyst here The "finger trap" was spot on and something not mentioned in the Stirling Salvage lecture with Flexport. One extra thing of note: If you look at the bathymetric maps you can see that only the eastern half of the canal is deep enough to support cargo ship operations, the other half of the canal is for tenders and smaller vehicles. So the suction effect was very pronounced because the actual useable canal volume was much smaller. Overall 10/10, very simple and gets down to the heart of the issue. I'm glad to see people are paying attention to maritime infrastructure, despite the fact that it has a huge impact on our lives most people don't know all that much about it. Stuff like the container crunch and everything else influencing global shipping sorta goes unnoticed usually.

@radicaltronic1855 3 года назад

The tides that helped free the ship were Spring tides, When the earth, moon, and Sun line up-which happens at times of full moon or new moon-the lunar and solar tides reinforce each other, leading to more extreme tides, called spring tides

@mr.mustache4743 3 года назад

@@radicaltronic1855

@mr.mustache4743 3 года назад

@matthewberner9732 3 года назад

@@radicaltronic1855 If the tide was instrumental in freeing it-It was also probably instrumental in screwing it.

@BeKindToBirds 3 года назад

@@matthewberner9732 That is poor logic. The canal is designed to be operated at different tidal levels and they are absolutely known and planned for by every ship that passes through. More to the point, it was a rising tide at the time the Ever given was stuck, mitigating that as a factor.

@tom23rd 3 года назад

10 minutes with Grady was clearer than 2 weeks of coverage on tv. You're the best, sir!

@TS_Mind_Swept 3 года назад

Reasons why I don't watch TV anymore

@andyharpist2938 3 года назад

TV: Billions of dollars at stake as thousands of animals die in horrible conditions on vessels stuck for six months to a year , say experts, and 100 billion in reparation says Egyptian pilot who was not to blame. Grady: Large-grained sands create interstitial pore pressure in the canal sides.

@taltosalmos7067 3 года назад

What about the conspiracy side of it? "10 minutes with Grady was clearer than 2 weeks of coverage on tv"-------So if Grady solved that problem in 10 minutes, what are that international committee is still investigating? I've heard that this incident made billions of trade damages to many companies and countries while some country made some tremendous political and economical statements. just sayin'

@TS_Mind_Swept 3 года назад

@@taltosalmos7067 conspiracies are irritatin; yes it's possible, but at the same time accidents also happen

@user-jq4ey2hj8f 3 года назад

Yet both of them have no clue

@bradlevantis913 2 года назад

I have been on the helm of a ship that started to experience bank suction. It’s the strangest feeling. You start to go sideways and steering away from the bank only puts your prop and rudder closer to the side. All you can do is slow down to reduce the squat and ease it away. But if it happens near a bend, game over. You need a lot of distance to overcome it

@pierpalumbo415 Год назад

basic is Life!

@joethebassplayer 3 года назад

"luckily, I have an acrylic flume in my garage"... if I had a nickel every time I heard that one...

@paillette2010 2 года назад

Well…I’d have a nickel.

@GerardMenvussa 3 года назад

It was nice of the Moon to give a hand in removing the ship. Thank you, Moon :p

@wojtek4p4 3 года назад

It's not like the Moon wanted to help... baka... she just happened to be passing by.

@joeo6378 3 года назад

Pretty convenient of the moon to just SHOW UP. But... WHERE was the moon when the accident happened? That’s right! On the other side of the earth making the water that much lower. That is totally a fact I just made up.

@eFeXuy 3 года назад

Thoon

@timothymclean 3 года назад

@@joeo6378 For one thing, the moon being on the opposite side of the Earth _also_ causes high tide for complicated physics reasons I don't remember off the top of my head. At least, I _hope_ they're complicated, or I'll feel silly for forgetting them.

@GerardMenvussa 3 года назад

@@joeo6378 pls no bully Moon-chan 😰

@bobbywoods684 3 года назад

The world needs guys like this, just most aren't as publicly articulate and pleasant.

@FoolOfATuque 3 года назад

You definitely have met some engineers in your day I bet. LOL! Articulate and pleasant is not as common a trait in engineering in my experience. LOL!

@toahero5925 3 года назад

@@FoolOfATuque It's what makes figures like Bill Nye important. They don't do much science or engineering themselves, but they put the actual experts' work into a format that the average person can understand and enjoy.

@FoolOfATuque 3 года назад

@@toahero5925 yes most definitely. Some of the most technically gifted engineers lack the communications skills to effectively communicate that knowledge in easy ways for the general public to understand. We all have a unique set of skills with some being strengths and some being weaknesses.

@gfarnden56 3 года назад

@@toahero5925 agreed but Bill nye is a terrible example. The bloke is a complete sellout!

@andrewsprojectsinnovations6352 3 года назад

Agreed

@FlameDarkfire 3 года назад

The biggest thing I learned about this disaster was that the Suez Canal is literally just a hole cut into the desert. I had thought it at least had a concrete basin or something to protect the soil/sand from erosion.

@markwillies4330 3 года назад

Same here I didn't realise that the canal was just one long "gat" or "Loopgraaf" Afrikaans for hole and trench

@Ealsante 3 года назад

I mean, it was built in the 19th century. When Lesseps tried to do the same at Panama, the terrain was more than enough to defeat him there.

@caferace8418 3 года назад

I was made aware of it in the navy. Water was shut off on the ship because soil could be sucked up when pumping in water.

@markwillies4330 3 года назад

@@caferace8418 would be interesting to do the route once. I had no idea it was such a low tech short cut.I forget the bloke's name who did a YT video on the blockage but its also not that deep when you take into account some of those floating islands that pass through it.

@caferace8418 3 года назад

@@markwillies4330 It is quick the experience, I've been through 3 times. I think large ships have a smallest draft than people think. Our aircraft carrier was something like 40 feet, which isn't much considering the flight deck was 90ft off the water.

@Peskyjooba 2 года назад

“Disability to resist pull-out” I understand that part of the video

@MM-sn6ix 3 года назад

Your videos on current topics are an awesome extension to your "regular" content!!

@moekakiryu 3 года назад

I definitely would be interested in Scott Manely style videos but for engineering news

@HopperNation 3 года назад

@@moekakiryu wow same

@spenmac 3 года назад

Yes 100%!

@whatsappvideos9665 3 года назад

eing called evergiven everywhere, some political issue that no one wants to clear out?

@baylinkdashyt 3 года назад

Concur

@Engineer4Free 3 года назад

Another great coverage of the engineering aspects of a current topic. Thanks Grady!

@pvic6959 3 года назад

I was hoping for a video about this from him!

@karlhawkes3820 3 года назад

Except the missing details. A gaping hole in reported details that could indicate sabotage.

@walnutsandbeastiality866 3 года назад

If we rearrange the letters of "Suez Canal", we get "CASUAL & ZEN"

@CorwinPearson 3 года назад

@@karlhawkes3820 Possible sabotage isn't really worth mentioning in an engineering video.

@karlhawkes3820 3 года назад

@@CorwinPearson couldn't help myself, RU-vid actually sent me a notification for it.

@ShankkaFanboy 2 года назад

I was stuck in the convoy behind the evergiven for almost two weeks. This explains a lot but the only false piece off information you gave was about the pilots. They have very little special knowledge and are often only there to exploit their position of power to gain “bribes” of cigarettes money and other goods

@vectravi2008 2 года назад

It is normal that a maritime pilot acts only as an advisor to the vessels master who remains in overall charge of the ship. Except for one place in the world where the pilot takes over command of the ship. That place is the Panama canal.

@trever9143 2 года назад

@@vectravi2008 why only in panama?

@vectravi2008 2 года назад

@@trever9143 hi Trever. I think it stems back to the builders of the canal, the American government, to ensure the security of the canal it was and still is a requirement to hand over total control of the vessel to the Panama pilot.

@asylumville8544 2 года назад

@@vectravi2008 many portmasters take controls of the ship when entering major ports

@vectravi2008 2 года назад

@@asylumville8544 not so. They may pilot the vessel but the ships master is in ultimate control. Except for the Panama canal.

@stillwaitingonmymatchwithj8765 2 года назад

I was suppose to transit the Suez the day after this happened but because of this incident I was unable to. Ended up waiting about a week. The amount of ships backed up out of the Suez right after this was insane.

@GAIS414 3 года назад

The bank effect was the first thing my 82 year old dad said when he learned what happened to the Ever Given. He used to be a skipper on a small freight vessel sailing the sea, lakes and canals around Sweden in the 50's and 60's.

@kylealexander7024 3 года назад

@dolita windo still doesnt change the physics of the bank effect that he mentioned.

@JN-om6rw 3 года назад

Yes the old sailors used to call it smelling the bank. It doesn't matter what size vessel if it is in a restricted channel the same effect applies, ie. A massive block of ship is pushing water ahead causing a reduction in UKC or under keel clearance with water rushing past causes Squat Effect.. and the only way to counteract this is if by slowing down the speed.. that't if you have enough time. With Squat effect if it sets in no amount of counter helm will make a bit of difference. This is a very real thing.. speaking from experience and after 45 years at sea.

@Alla.Hmohammed 3 года назад

@Kate Simpson you crazy Kate?

@stanpolchinski8956 3 года назад

@Kate Simpson wtfrutalking about?

@longlostwraith5106 3 года назад

@Kate Simpson Why were you loaning everyone money back in the 60s?

@tdcattech 3 года назад

This type of content is what makes RU-vid a great platform.

@Partho_The_King 3 года назад

No ads, no cringe, just good learning content.

@helenmurphree3434 3 года назад

Hear Hear ! From 1689. Imperative, used as an exclamation to call attention to a speaker; now a general cry of approbation. Originally "hear him". Let us hear and applaud the previous speaker; I endorse the previous statement; expression of support, agreement, or enthusiasm for what has just been said.

@Am_Yeff 3 года назад

@@helenmurphree3434 ok

@graeff 3 года назад

imagine a platform with only content like this... Have you heard about Nebula??

@Paul_C 3 года назад

Though there is too much crap floating about youtube. And it is getting tedious to sort the bull crap from the gems.

@barryrahn5957 3 года назад

Hey Grady, just want to say thank you for your videos. I'm not an engineer and I haven't studied advanced math or physics etc. Nonetheless, I love finding out about infrastructure, hydraulics and what makes this modern world of ours tick There's always an " ah " moment watching these videos. So keep up the good work - from one layman to an expert. Good on ya mate!

@barryrahn5957 3 года назад

Are you a Texan?

@Sawta 3 года назад

Can you imagine being the first ship to be sent back through the canal after the Ever Given was finally unstuck? The amount of pressure on _not having the exact same thing happen a second time_ must have been absolutely crushing for the navigators.

@Miss_Trillium Год назад

And yet, it could have been just so comedic if it had happened

@Yuri-bt4wl 3 года назад

"Even the moon joined in the operation" This line earned my subscription!

@frogdan 3 года назад

Yes I also subscribed to the moon

@EDoyl 3 года назад

Actually Evergreen was the name of the doctor, the monster wasn't named.

@glowingdeathclaw3560 3 года назад

Yeah it was, he was called “Evergreens monster”

@jillschryver1030 3 года назад

@Jerry Davis yeps 🇺🇸

@Kendricklamarglazer17 3 года назад

Within two replies it got political and US-patriotic

@StsFiveOneLima 3 года назад

This problem could have been avoided had the harbor pilot ever watched NASCAR and learned about the art of side-drafting. :-)

@jillschryver1030 3 года назад

@@StsFiveOneLima 😂😂

@ezabala Год назад

Wow! 25 years out of civil engineering school and Grady is helping me understand hydraulic phenomena. Thank you, sir!

@hughculliton3174 3 года назад

I greatly respect a man with an acrylic flume handily available in his garage! BYW: I'm using your excellent videos in both my geography courses as well as the Sea Cadet navigation course I'm teaching! Thank you!

@ouzoloves 3 года назад

Ooh I’ve been waiting for a proper engineering channel to cover this.

@karlhawkes3820 3 года назад

Fake disaster. Criminal profiteering on oil and commodity speculation markets.

@caernavon 3 года назад

Right? It just wasn't the same when PewDiePie tried to explain it all. 🤣

@markfryer9880 3 года назад

@@karlhawkes3820 Don't be such an an idiot. It was a very real ship blocking a very important trade route for @ 10% of the world's trade. Nothing fake about idiot that! As for the oil and currency traders, well they are always trying to make money on good and bad news and fear.

@olliefoxx7165 3 года назад

@@karlhawkes3820 Exactly. Such a huge ship carrying thousands of containers blocking a major trade route most definitely affects the stock market and prices of a variety of goods. Thought the same when I heard of it.

@max_kl 3 года назад

@@karlhawkes3820 By who? I doubt it

@FlarGarg 3 года назад

value so much a reasonable take on "how" relatively recent events happened, and not speculating on "why". Thank you. This is an awesome channel as is, yet this is even better addition to it`s content.

@TheBelrick 3 года назад

How the evergiven ran aground: it was driven into the canals edge. Chances of this coming out is about as much as mainstream media confirming that covid19 came from a chinese lab.

@DrPonner 3 года назад

@@TheBelrick so not at all?

@TheBelrick 3 года назад

@@DrPonner pretty much. Reality is what the One World News Ministry of Truth says it is.

@DrPonner 3 года назад

@@TheBelrick there is no one world news ministry of truth... and covid didn’t come from a Chinese lab. Take off your tinfoil hat.

@TheBelrick 3 года назад

@@DrPonner you are the unfit voter who has resulted in the sad stay of affairs. Imagine being blind to how all the media say all the same things. Or that top scientists announced that the covid virus had markers consistent with lab use or that there is a chinese lab at the center of the outbreak. Im glad you will suffer from your stupidity. the rest of us are innocent however yet you are dragging us all down

@morrismwenda9138 Год назад

Excellent presentation The Suez Canal is the best shortcut for ships moving to Europe

@sebytro 2 года назад

You explained one of this year's top engineering issues so well in such a little time! Kudos and thank you once again for your detailed, to the point and simplified explanations of engineering wisdom.

@erikhendrickson59 3 года назад

I'd always just assumed that the canal lanes were wide enough that this wasn't possible. Seeing that scale image of the Evergiven sitting in the canal really puts into perspective how stressful and precarious it must be for the captains piloting one of these vessels.

@arthurmoore9488 3 года назад

I get the feeling that it's a case of the regulations regarding size were too lax. So, naturally someone built a line of ships that's right at the limit. It turns out that's a good way to cause accidents.

@benstarr5270 3 года назад

@@arthurmoore9488 eh, if there’s anything about the shipping industry it’s that it’s extreeeemely regulated. Every single aspect. The amount of money and cost to continually maintain/dredge deeper and wider channels is no joke. The canal authority sets the maximum limits of ship size so of course the industry, which takes advantage of economies of scale, build the larger ships to be more competitive. It’s done safely all the time, and one bridge teams mistake doesn’t necessarily show the canal transit to be unreasonably precarious

@JN-om6rw 3 года назад

There are other things to be considered here, first is the question of silting or sanding up due to propellor action and or tidal motion that the authorities neglected to mention. For instance It could be that UKC under keel clearance was reduced because if this and with say some extra speed resulted in the bernoulli principal coming into play which reduced the UKC further.. ie squat effect..no need for me to explain further here..jusf go check out squat effect and bernouilli

@johnjcremins 3 года назад

😫

@jwadaow 3 года назад

There is strong incentive or pressure that drives the ships to be larger. Given enough time the surrounding structures or institutions yield to that pressure.

@erictaylor5462 3 года назад

"Why did it take so long to dislodge?" Actually, I'd like to know how they got it unstuck so quickly. It was amazing, the job they did.

@monad_tcp 3 года назад

yeah, people are like, why did it take so long. I was like, ship is now a building, better lean back and relax, it will have to be disassembled, it'll take at least a month to cut it into pieces, I was surprised and spit my coffee like that meme

@Georgey0121 3 года назад

Nah it could have been done in 1,5 days with the Romanians working for a cheap wage

@erictaylor5462 3 года назад

@@monad_tcp Can you imagine being the ship in line right behind the Ever Given? Watching the channel get blocked, knowing you're going to be stuck for some time? I was on the freeway once when a huge wreck happened right in front of me. The freeway was blocked from one side to the other, 100% blocked with no way to get around it. Multiple major injuries and 2 deaths. I was first in line to get by when the eventually cleared a hole to drive through, but it was about 3 hours before that happened. I was just delayed, no real harm for me. Can't say the same for the cement truck behind me. His load set while we waited!

@Br3ttM 3 года назад

They did get more dredging equipment in, not just that one excavator, but they also had a spring tide when they finally got it unstuck, meaning the sun and moon were lined up right to make the tide a little higher than regular tides. The tide's effect on water flowing through that canal was also helpful, I think.

@erictaylor5462 3 года назад

@@Br3ttM I knew that. It's still impressive, the job they did.

@donwanna3906 3 года назад

"My flume isn't long enough." Me too, buddy. Me too.

@joshhaughton1893 3 года назад

Never thought I'd find civil engineering so fascinating.

@ProfessorKitchen 3 года назад

What I got from this video: Be careful where you put your bulbous appendage. The last thing you want is to have to dig it out with the whole world watching.

@timrutkevich3222 3 года назад

What I got from this video: you better pay good bribes to the pilots and other Egyptian officials, so they don't cause such issue and blame on you.

@gmcinnis6304 3 года назад

that requires lots of money and lawyers. lessons learned... some ... men are slow learners on that one. i dont get it myself, but...

@cestmoi1262 3 года назад

That is worth a hearty laugh. Thank you!

@73Stargazer 3 года назад

And that depending on where you stick your bulbous appendage, it may be difficult to pull out.

@KingHorus378 2 года назад

@@timrutkevich3222 by the way the captain of the ship didn't want the Egyptian pilot escorts which is optional and he did not stick to the Egyptian guidance as their were strong wind at that day and the captain were speeding, it has nothing to do with bribes or corruption but its all about dont make yourself smarter than you are and in reality you are dump just like you

@metalheartmugglebody.8328 3 года назад

That little excavator didn’t do too badly though, testament to the operator’s determination, well someone had to get it started. Very nice presentation, very nice.

@everenigmatic5805 3 года назад

The operator was probably thinking "Aaaaaalright! Now I have job security."

@cancan-wq9un 3 года назад

Little excavator that could

@clockguy2 3 года назад

Excellent explanation! My father was a civil engineer and I appreciate you letting me nerd out like I used to do when dad was still alive. You even resemble him when he was younger.

@zeeshanzafar2843 3 года назад

Plot twist : He's your dad

@basantashrestha4121 2 года назад

I am inspired by how much information you can stack up in one video with all the real incident references and covering the hydro and geotechnical aspects seamlessly.

@Jivolt 3 года назад

1:53 When you need a sign stating “safe” and “secure”... definitely nothing shady going on.

@zazugee 3 года назад

yeah, but the reason they put it is bc of the series of terror attacks and civil unrest in egypt past decades

@kanonierable 3 года назад

Same with "land of the free, home of the brave" the "defender of democracy", right? Nothing but the plain, simple truth!

@Jivolt 3 года назад

@@zazugee Ahhh yes. That does make the sign make more sense.

@BaronSamedi1959 3 года назад

The Suez Canal actually has a great past record of safe navigation. Given the huge volume of traffic passing through the canal, exceptionally very few incidents happen and most of them are caused by either mechanical failure of the vessels, some human error or bad weather. I cannot remember any incident that has the canal infrastructure itself as the cause of the incident.

@mikearmstrong8483 3 года назад

"Safe and secure". Sound of 1973 Yom Kippur War, that closed the canal for 7 years, laughing maniacally in the background.

@perhir01 3 года назад

I have a feeling a lot of college students will have homework or exam questions somehow related to this incident in the coming months.

@mostafamohammadelmussleman5542 3 года назад

As an engineering student we already had an assignment about it 😌

@mohamedwagdy1598 3 года назад

I already got one in Physics It was an essay about the engineering challenges that they faced😔

@perhir01 3 года назад

@@mohamedwagdy1598 few years back I got a question about the Boeing 737-Max crashes that had just happened. One week before that exam I had watched a youtube video on the subject and it might've given me the push from a pass to a pass with distinction :D

@SD-li9g 3 года назад

OK, so know one heard about the thousands of children being trafficked that were on board , or the weather weapons. Dig deep wake up your being lied to.

@georgeb.wolffsohn30 3 года назад

@@SD-li9g did you forget your meds today ?

@MarkLambertMusic 2 года назад

Everything is better with stick-on googly-eyes.

@philippweisang 2 года назад

Except real eyes

@CreedBrattonTheOffice 2 года назад

Kept seeing this recommended to me. Never heard of this channel before. Watched a couple other videos that seemed a little more interesting to me first and love it. Really good videos, clear, concise and enjoyable. Subbed!

@azultarmizi 2 года назад

B O B O D D Y

@CreedBrattonTheOffice 2 года назад

@@azultarmizi The first B is for Biznness

@OMK11 2 года назад

Creed I wonder what happened to you!

@tavdy79 3 года назад

"essentially a trapezoidal channel cut through the sand of the low-lying Suez peninsula." Suez is an isthmus. The peninsula is Sinai, to the east.

@PracticalEngineeringChannel 3 года назад

Whoops! Thanks for the correction. I added it to the description.

@mfaizsyahmi 3 года назад

I first learned about the bank effect's role in the grouding of Ever Given in a Kyle Hill video, released like a week ago. Also if you want to learn about the bulbous bow, and many other ship-specific technical stuff, Casual Navigation is a fantastic channel.

@qwertyTRiG 3 года назад

The Financial Times had a really good article about it too. Weird place for it, I know, but there it was.

@gehirndoper 3 года назад

@@qwertyTRiG I mean it's an extremely important event for global trade. The people there-involved badly wanted to know about it, I imagine.

@williampettengill5851 3 года назад

I enjoyed this - I'm a mechanical engineer, so soils aren't in my field - fascinating that the bow would be more firmly clamped in the harder you pull on it! Well presented.

@GotEmAll1337 2 года назад

I love this channel so much. Thank you for being such a reasonable, well thought out, and practical source of information to the world and all its intricacies on how it works. The world would legit be a better place is everyone watched your content.

@nunyabidness117 3 года назад

Grady as a single man: "So...want to come back to my place and see my acrylic flume?"

@tmmtmm 3 года назад

"let me show you how to navigate a massive ship through a tiny canal"

@jurgen6706 3 года назад

"How about my bulbous bow?"

@yellekc 3 года назад

"See how my bulbous bow increases dilation pressure?"

@baltakatei 3 года назад

I've been practicing a pullout demonstration. 😏

@WhateverMan35 3 года назад

Or you could come back to mine and play with my bulbous bow.

@evergreenappreciator 3 года назад

As a deck officer who works on these kinds of ships, thank you for explaining bank suction/cushion so intuitively and simply! It would be great if in the future you covered these forces, the forces between two ships passing in a narrow channel (look up playing Texas Chicken in the Houston Ship Channel ;) or bulbous bows like you said. Thanks Grady!

@_BangDroid_ 3 года назад

Do you have an explanation or insights into how a ship of that size could draw a genitalia with it's tracking data?

@Steve_Just_Steve 3 года назад

@@_BangDroid_ This is only question I have about the whole incident.

@vectravi2008 2 года назад

Sean, this is a very well known effect and has been for many years. Check out the Titanic New York innocent in Southampton. Similar effect.

@lemonjay2076 3 года назад

Thank you for your brilliant explanation. You are a brilliant communicator! I'm often the one person that is thrilled by such detailed technical information, within a crowd of voices shouting "who cares, it's fixed." I'm thrilled to have the opportunity to hear your channel. I just subscribed. Thank you for sharing your brain.

@jayive34 2 года назад

Cargo ships and cruise ships also require a trained helms(wo)man to navigate on the St-Lawrance river. When I was working security at the port, I would sometimes catch radio communication between the port authorities and the ship as they made a pilot swap, or warned each other about work being done.

@AfifShahSadipSeven 3 года назад

I'm no engineer or related to science studies but I'm a huge fan of this channel. Got to learn so much, literally answers a lot questions that my curious mind has. Thank you for making this videos. ❤

@MrOnemanop 3 года назад

I knew someone would say what I wanted to say, only better than I would have.

@ellessandraramsay1841 3 года назад

I've become an engineer just by watching this channel 😂

@AxionSmurf 3 года назад

If you were related to science studies, you might be a cyborg too.

@AndyMan422 3 года назад

Finally video from Practical Engineering about this. I'm "engineer" on a ship and I really wanted to hear what you think, thank you.

@DrakeDaraitis 3 года назад

Why is engineer in quotes? Suspicious haha.

@patton446 3 года назад

@@DrakeDaraitis Because we are essentially glorified mechanics. our "engineering" mainly consists of maintenance and when stuff breaks down how to fix it without burning down our ship. And we operate the main engine, auxiliaries and amenities such as fresh water, sewage etc...

@AndyMan422 3 года назад

@@DrakeDaraitis I wanted to reply to you but @patton446 explained it well.

@vectravi2008 2 года назад

@@patton446 This depends on what rank of marine engineer you are. Do you mind if I ask your rank?

@patthecat6491 2 года назад

I've watched a few of your videos now and really enjoy your presentations. Today I particularly enjoyed to two googly eyes on your brick ship demonstration.

@johnss7754 3 года назад

Grady, this is an absolutely super video. Your engineering knowledge is so appreciated.

@procrastmh 3 года назад

He never misses an explanation. Great upload as always

@andrewalexander9492 3 года назад

" ... luckily, I have an acrylic flume in my garage "

@61rampy65 3 года назад

Doesn't everyone??

@padraigtomas3617 3 года назад

That's what she said.

@rickchubb6011 2 года назад

Nicely done, Grady. Simplified & understandable explanations to some very complex hydrodynamic and geotechnical issues. Bravo.

@anthonywhitehead9660 2 года назад

Great video as ALWAYS! I Love to nerd out on these videos. Its just nice to hear someone actually talking knowledgeable on a topic.

@JackFeelsNerves 3 года назад

Not just an overview, but one of the best explanations of the events... ever given. I'll get my coat.

@lyudmila2882 3 года назад

Touché!

@peterjensen6844 3 года назад

The googly eyes are why I subscribe to your channel, Grady. Perfect demonstration of the physical world...and the perfect amount of nerdy humor snuck right in with it.

@BBT609 3 года назад

Wow. The Suez Canal is like a single track railroad with passing sidings, passing trains on schedule without stopping.

@JohannesKonow 2 года назад

This is probably the best video I have seen from someone not in the industry. They are usually hopelessly clueless about the practices, responsibilities regarding pilots, engineering side or make some wild unfounded claim regards to why the ship got stuck. This was factual, to the point and without errors. Bravo.

@54warrior 3 года назад

"Luckily I have an acrylic flume in my garage" , yeah me too buddy.

@brokentombot 3 года назад

Seriously. Only a homeless person has no acrylic flume in their garage. Gah!

@PedroGomez-bd9ro 3 года назад

@mihan2d 3 года назад

When I heard "acrylic flume" I knew I'm in for a good time here!

@gmcinnis6304 3 года назад

doesnt everyone????

@williamsaunders8047 3 года назад

@@gmcinnis6304 No, mine kept leaking so I used silicon and sold it at a garage sale to a homeless man for $1.00. Currently on display atop a shopping cart at a nearby grocery store.

@badcompany227 3 года назад

I finally understand why I have 3 kids. The pull out force of the anchor vs the friction of the soil. Thank you, I’ll be here all week.

@cl759 3 года назад

Please, come again 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

@lolilollolilol7773 3 года назад

The sizes and tonnages of these monsters defy imagination. The heaviest ships like the Ever Given weigh 400,000 metric tons or even more. That's 4 times the tonnage of the USS Nimitz class aircraft carriers. There were a couple of 70m yachts around, and even them were dwarves compared to monsters of the seas, the biggest yacht being around 1,100 metric ton.

@arobertpetersen 3 года назад

Top notch explanation on the topic. I thoroughly enjoy your calm demeanor and science packed discussions.

@blancolirio 3 года назад

Excellent demo! Thanks Randy. Loved the “finger trap” analogy. Juan

@patrickmitchell6968 3 года назад

Hey Juan. When I watched this video, I remembered your's. I think you had a better, more comprehensive explanation early on when the incident first happened.

@Gunnboat 3 года назад

*Grady

@thehighshow 3 года назад

There can never be only one Juan...

@joshmcdonald9508 3 года назад

the "finger trap" analogy worked for me too😁

@atomknows4973 3 года назад

Lies - if you want to really know why that ship crashed and what the cargo was, search for it on bitchute dot com.

@larrymcever4601 3 года назад

My Uncle (Mack) was reported to have been the pilot for the first ship, a U S destroyer, to pass through the canal after its reopening long after the 67 war. Ships were at anchor all along the canal.

@robburke5577 2 года назад

Finally a breakdown that actually made sense! Thanks for taking the time to make this video. Much appreciated!

@johnray4509 2 года назад

Grady, this was wicked cool and extremely informative. You have a knack for making the complicated understandable. Thanks.

@davidw1518 3 года назад

As someone who has zero knowledge of engineering, and not a whole lot more interest in it, I thank you - and commend you - for such a clear and understandable explanation of what happened.

@nicolas-pt6py 3 года назад

"The yawning gap between the machine's assignment and its capability was just too ripe for parody." = It was meme-worthy

@A.Lifecraft 3 года назад

I guess a firetruck might have been a better choice of tool, the flow of large amounts of water towards the canal might have helped achieving the desired movement...

@cl759 3 года назад

Tiny excavator removing the soil from the Evergiven gigantic hole.... that's quite ripe as well 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

@nathalie_desrosiers 3 года назад

@@jonbus766 Never add a link to another youtube video *without providing the title* . This is rude. A total lack of etiquette.

@wendyweaver8749 3 года назад

@@nathalie_desrosiers - It also leads to the post being reported as unwanted commercial content or spam.

@URNUTEACHER 3 года назад

You, Sir, are a great narrorator and teacher. I understood and followed the patience in your voice.. ty

@carrotking123 9 месяцев назад

The all-caps sign at 1:54 "Welcome to safe Egypt and its secure canal" raises more questions for me than answers.

@marvinthiessen3454 3 года назад

One of the better narrators on You Tube, well done, sir.

@AlexDegnovic 3 года назад

Be Like "Evergiven"

@marvinthiessen3454 3 года назад

@@AlexDegnovic Be like who?

@robertqueberg4612 3 года назад

This was a very good presentation about a “rather sticky” situation. Your demo canal showed your efforts to clear up the many forces, and counter forces hidden from a layman’s eyes.This is a situation where simple solutions become lost due to the massive size.

@robwilgenhof4386 2 года назад

I can’t get enough of your teaching Grady !!!

@parkjoe1 2 года назад

very educational and simply explained for this pedestrian to grasp and understand, thank you

@kylevaughn6984 3 года назад

as a marine transportation student at the California maritime academy this was a big topic of discussion

@SheepDawg1111 3 года назад

Did you look into the fact that the windows system used to operate this ship was hacked?! Bring that to the discussion and watch your instructors head spin.

@cindystrachan8566 3 года назад

My Dad would have loved your channel. He was a mechanical engineer specializing in heating and cooling systems for cars. He loves all things mechanical.

@charlesfarnsworth1189 2 года назад

Nice job! Love to hear more about the Bow. I always thought it was to help break up water retention.

@kenwhittle414 3 года назад

You should have your own TV show. Great stuff well presented. Less reality TV junk more of this stuff. Well done

@58209 3 года назад

i really like you starting to include more current events in your engineering lessons. you have really made engineering more interesting and accessible to the rest of us.

@airplanenut89 3 года назад

(Unless you were on the EG's bridge) Remember, you may have screwed up today, but at least you didn't screw up so badly that the Moon had to pitch in to fix it.

@brokentombot 3 года назад

Haha nice. You know it's bad when the Moon needs to help pull you out of a pickle.

@grevelingen2008 3 года назад

Upskirt

@erikhendrickson59 3 года назад

Not to mention causing a WORLDWIDE shortage of numerous commodities lol

@tmi1234567 3 года назад

@@erikhendrickson59 if is far from the issues caused during the real Suez Canal Crisis. Years of the the canal being broken because of a war happening across the canal.

@samschellhase8831 2 года назад

the view at 10:45 really shows how massive of a ship it is. All the ships in the water that are nearer the camera are dwarfed by the Evergiven that's even further out

@vocalpro 2 года назад

The ability to resist pull out isn't something I've ever had to consider before strangely. Certainly informative and amazing as always Grady. Love it.

@markusrobinson3858 3 года назад

Grady, You give engineering nerds a heck of a good reputation! Comprehensive, interesting and topical. Thanks!

@aquachonk 3 года назад

Dang it, Grady, now I'm addicted to ANOTHER You Tube channel.

@ttbko 2 года назад

Me too 🤦

@billrowan1957 2 года назад

I can't get enough of your reporting, would love to see more of the longer pieces. (I get it though, most attention spans dont exceed 5mins) Thank You for all the knowledge.

@hl8333 11 месяцев назад

You make thr subject easy to understand to the layman. I've watched about 10-12 videos so far any gain knowledge after each one. Keep up the GOOD WORK !!!

@itsjusttyler5315 3 года назад

All I know for sure is that a lot of memes were made out of this

@thesmallestminorityisthein4045 3 года назад

Oh yeah, one may even say we got a boat load of them.

@itsjusttyler5315 3 года назад

@@thesmallestminorityisthein4045 lmao

@USSAnimeNCC- 3 года назад

Evergiven was drawn as an anime girl too XD

@user-me2qq6lx7i 3 года назад

@@manitoba-op4jx yes

@Kni0002 3 года назад

evercoin

@ct_leopold1276 3 года назад

Really liking the engineering perspective on select news coverage. Your clear way of presentation and eloquence of speech make the whole production an enjoyable experience.

@wrightmf 3 года назад

When you mentioned geo technical, reminds me when someone said soils engineering is a combination of art and science. Getting a PE in civil engineering and doing CE work is one thing. But soils engineering is a whole level up. We've all seen unknown blunders that occurred when everything was "done right" but a year later after a new road is built, the surface becomes like a rollercoaster ride.

@nunya257 2 года назад

Why were the ancient Romans so good at it? Do you know?

@daleinaz1 2 года назад

@@nunya257 Part of the answer is that the roads that survived were built in stable, well-behaved soils. Any that were built in unstable soils have been torn up centuries ago. Look up "Survivor Bias".

@deeperperspective 2 года назад

Man, you are so excellent in telling stuff. Love it.

@4stringmanagmaildcom 3 года назад

Excellent video. You should do another episode on tugs, and specifically the anchor tugs that eventually pulled her free. Amazing machines! The Alp Guard was one of them.

@cuterpooter 3 года назад

Grady, I find all your videos interesting and informative but I want to thank you especially for this one and the one about the Texas power outage in Feb. Both of these stories were meme'd and made into soundbites, but neither was very well explained until you did it.