What Caused the Catastrophic Nuclear Accident in Chernobyl?

What Caused the Catastrophic Nuclear Accident in Chernobyl? Is Chernobyl safe to visit now? Do people still live in Chernobyl?
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Sources for this episode: pastebin.com/sBFNTNts
Some Images used under license from Shutterstock.com

[@TheInfographicsShow]

Many of you would like to visit Pripyat and do some sightseeing... Is there any other disaster site on your bucket list?

[@boss_niko]

"50,000 people used to live here, now its a ghost town"

[@sferabendy9642]

hi a am russian i know about chernobyl (чернобыль) so many i can tell you many interesting things

[@thebeaniestbeanboys5735]

Yo if I had days to live I'd wanna see the #4 reactor and elephants foot.

[@sferabendy9642]

@@thebeaniestbeanboys5735 ....

[@cronfgfunnyvidscomp]

if i had 1 day to live and i was there, i would want to hug the elephants foot

[@joshuakevin3991]

“We all know what happened next.” No I don’t that’s why I’m here

[@malachitesardonyxvasquez]

He said it before

[@jamesbraun9842]

Look up the Zero Hour Chernobyl, this one actually explained all of the problems

[@tomr6955]

I agree.

[@mattskirble6845]

Check out the book Midnight in Chernobyl it's a really interesting dive into the USSR and the events leading up to the accident.

[@daithimurphy6783]

Just watch the show

[@notahoj8346]

“4:18” Every disaster movie starts with the government ignoring the scientist

[@rmsaquitania9524]

And more or less every irl disaster too...

[@bhavya5735]

Ugh exactly and in real life too. Even now that's exactly what's happening.

[@applekitten8359]

Not even a government party member

[@rezahilmidafa5972]

In real life too btw

[@BT-7274.]

They ignored the scientists and so they paid the price

[@BakedPotatoYT1]

Chernobyl: **explodes** Tourism Company: *_S T O N K S_*

[@did_tho]

Fukushima : Nani?

[@exposeyou8613]

*S T O N K S*

[@azarth8805]

Or Tourism Companies: *MONEY MONEY MONEY!*

[@janicesanmartin6028]

BakedPotatoYT 😭🤣🤣😭😭🤣😭😭

[@razvanbaltatescu6099]

No no *S* *T* *I* *N* *K*

[@dangerzone4572]

I can literally count how many times i have been to chernobyl on my hands, 13 times

[@alfie1534]

Nice mutation

[@Mickelraven]

Nice! 13 hands can get very useful when needing to hold a lot of stuff :D

[@CH3CKIT]

@@Mickelraven wait...

[@dumbbutagirlboss4839]

It took me a second

[@schoolgang6684]

Um you might want to get that check 😂😂

[@YFedecs]

*What Caused The Catastrophic Nuclear Accident In Chernobyl?* Me, a nuclear physicist for at least a week now: *LIES*

[@estelaosorio7468]

Actually a cherry caused it The more you know folks ;)

[@user-kn2qk8ly8c]

No, it’s *PIES*

[@Faiz6698]

Not great, not terrible

[@duckcluck7879]

We need a new phone.

[@clariza.b]

I understood that reference.

[@Overneed-Belkan-Witch]

4.6K Dislikes Not Great, Not Terrible

[@ndanji266]

dyatlov and friends about the dosimeter readings hehehe

[@kevinccce]

no pun intended

[@RepostCollection]

7K

[@mecanicsI]

6.9k dislike- *Nice*

[@thanoskanavetas4398]

Dyatlov is still in the toilet

[@Maximus4587]

_"There was no nuclear accident at Chernobyl."_ - *Anatoly Dyatlov, 27 April 1986*

[@martyr1856]

The elephant in the room

[@aregmartirosyan2076]

It was and a horrifying story

[@shushimgettingmylifetogeth2698]

Yep it was on 29

[@joemamaobama6863]

No war in ba sing se

[@dv2045]

Prorussians say that 1) the CIA was behind the disaster and 2) the Fukushima nuclear disaster is far worse but they rule out that the tsunami was the catalizer and not stupidity like Chernobyl

[@cultclassic999]

Skip to 3:34 where the actual "What Caused the..." begins

[@Julian-ns3it]

cultclassic999 thanks

[@pity_6095]

Your a life saver

[@Tinypro2005]

Thank you

[@hylleny3209]

4

[@LTCAproductions]

Start at 00:00 to learn more

[@CasualTS]

This isn't an informative summary of the actual disaster, but is informative if you're interested in being a tourist.

[@Ultimaweapon971]

How so? It exposes how it technically happened.

[@yourm8042]

@@Ultimaweapon971 it only only informs us of the aftermath, not what caused the reactor to explode.

[@dioisabot4276]

@@yourm8042 it does say how it happened but very poorly

[@Ultimaweapon971]

@@yourm8042 did you even watch all of it?

[@yourm8042]

@@Ultimaweapon971 okay i watched that part now, it is still explained poorly tho.

[@Kamsecondpage]

Who came here after watching the HBO's Chernobyl Trailer.

[@camiwhite2489]

Abubakar kamara me lol

[@vrooomvrooom230]

Normies!

[@pedrorojo7851]

It was in the suggested tab of the teaser

[@anhquanhoang9321]

me

[@elcompagenito3250]

Me tovarish

[@thunderbeast1854]

It's 1:23 am 26th April 2021 35 years on.... Remembering those who lost their lives,and those who's lives were changed forever.

[@jack_m2306]

Precisely 1:23:45

[@Abdullah-pl4mp]

“Look at this place...50 thousand people used to live in this city...now it’s a ghost town...never seen anything like it” Cpt. MacMillan

[@aryanjason232]

That mission where u are Capt price and suited up in ghillie suit,one of the best missions of COD MW series

[@AdamWest1290]

MW1 and MW2 will forever be legendary 🙌🏼

[@cookie6996]

"50,000 people used to live here, Now it's a ghost town"

[@greysonG10]

Yeah?

[@kermitthefrog5926]

How many ghosts live there?

[@kibido7373]

yeah it’s full of these comments bro you’re late

[@randomchannel3382]

I got you its a game right...........right? call of duty 4

[@swagqueen86]

Cookie captain price!!!

[@IsabellaaaRider]

The Chernobyl situation was such a depressing and sad moment in history. Not just the deaths and the fact that it left the city in ruins but the fact that Chernobyl was an evolving and forward looking city with high potential. But it caused me to meet one of my best friends. She’s a Ukrainian girl she was born in Chernobyl but this incident caused her to move with her family a small city in Sweden called Gävle. There we meet in school. I helped her with her Swedish and she taught me how to play football/soccer. Her parents died in cancer when she was just fourteen years old and my aunt adopted and took care of her. She moved away to a special university to get better at Football and I hope that one day my friend will become a professional.

[@mushroomsrcool1449]

Fate is odd and twisted. It is the cause of many bad and good events. I'm happy for you and your friend.

[@Criminalen]

Isn't she at least 37 years old?

[@persephonessong]

The HBO miniseries really does an excellent job at explaining everything i was moved at the end it brought me to tears all the suffering and pain...

[@sathyawayne]

"That is how an RBMK reactor explodes. Lies" Valery Lagasov.

[@brianwong7285]

The biggest blame for this disaster lies with the senior management of Chernobyl for a few reasons. (1)- Plant director Viktor Bryukhanov was under constant pressure to ensure that Reactor #4 would be finished on schedule so that substantial communist party bonuses could be won. To do so he was forced to use tar [highly flammable] to coat the roof of the reactor. (2)- The Soviet Union’s Atomic Energy Commission did not make aware the fact that the reactors themselves were fatally flawed: they were dangerous to run at lower power levels. (KGB documents showed that from 1979 to 1986 authorities ignored repeated warnings of the danger at Chernobyl.) But the biggest problem is this: (3)- Although Leonid Toptunov is 2nd-in-command for the control room of Chernobyl’s Reactor #4 neither he nor control room foreman Aleksandr Akimov was in charge. Safety test preparations were instead overseen by the plant’s Deputy Chief Engineer Anatoly Dyatlov who gave the order for the test to be only carried out at a power level of 200 megawatts (USSR AEC test regulations STRICTLY set a minimum power level of 700 megawatts for the test) but Dyatlov assumes his position [Chief Engineer Nikolai Fomin was asleep in Pripyat during this critical test.] allows for him to set any parameters as he wishes, even for safety tests. Needless to say; when problems were first spotted, the men did take steps to prevent the disaster. When Akimov noticed the power surge he immediatly did what his training told him to do: hit the emergency shutdown button. (Soviet nuclear reactor emergency shutdown buttons are given the name AZ-5) but again, the USSR AEC hid one tiny fact from the knowledge of plant workers. (4)- The AZ-5 button automatically lowers the boron control rods into the reactor to try and stop the nuclear reaction ASAP, but the power levels shot up hundred-folds after that. This is because the boron control rods themselves are tipped with graphite (same stuff they use for the block that houses the fuel rods) which increases power, NOT reducing it.

[@anonymousmink5027]

Grand Admiral Thrawn so why bother comment it if you didn’t read

[@Shuriver]

agree

[@RyosukeTakahashiRX7]

That was a very interesting read, appreciated.

[@pierreuntel1970]

Soo.... Why the emergency shutdown did not stop the reaction but instead increasing it? I did read your last sentence but still don't know why the power go up instead of go down?

[@asimanayak304]

@@pierreuntel1970 As already mentioned, the control rods were tipped with graphite. Graphite in a nuclear reactor is used as moderators. This is a perfect example why little knowledge is a dangerous thing. We already know control of fission rate is what differentiates nuclear reaction in an atomic bomb and in a nuclear reactor. By the name of it, moderators can be thought of materials that can moderate a reaction. But the thing in reaction process only slow neutrons bombard with atomic nuclei to cause fission. Fast moving neutrons are incapable of causing fission. A moderator slows down neutrons thereby increasing fission reactions in a geometric progression/exponentially. This is the reason why it contributed to a temperature increase of the concrete core wall to a million degrees, blasting the core and setting surrounding areas on fire.

[@Spookydeadite]

Chernobyl is not a city... it's Pripyat ...

[@gooserpooper]

Captain Marvel both are cities however the reactor was located in Chernobyl, most of the plant workers and their families lived in Pripyat.

[@ubisons6161]

@@gooserpooper Chernobyl was the name of the power plant

[@wardasz]

BOUTH are cities. Chernobyl is old city, when power plant was build it was nearest city to it, so power plant was named after it. Later, they build city Pripyat much closer to power plant, for people working in it. And it quickly become much bigger (16k in Chernobyl, 50k in Pripyat). Today Pripyat is completely abandoned, called "ghost city", while in Chernobyl live around 2k people. But moust buildings are abadoned.

[@ubisons6161]

@@wardasz Chernobyl was the name of the power plant and that part was also considerd Pripyat when it was build Pripyat still has around 600 people and around 200 of them were the ones who lived close to the power plant

[@randybobandy4385]

@@ubisons6161 wrong. Chernobyl was the town and pripyat was the city nearby.

[@senk0san]

Me: *Presses random buttons at my new job Everyone else working in Chernobyl:

[@senseimadara3791]

You know people died there,and your making weird jokes

[@amzingdoge2116]

​@@senseimadara3791 Just deal with it, theres already tons of jokes about WW1, WW2, 911, and every other conflicts.

[@watermocules7735]

@@senseimadara3791 shut

[@senseimadara3791]

@@amzingdoge2116 I don't have to deal with it idc,it's just sad that memes exist

[@olly5202]

For anyone wondering where the locals went to after the disaster, a town called slavutych was built for the locals of Pripyat to now live in which is located near the city of Chernihiv, Ukraine. The population of the town in 2020 was around 25,000

[@joed812]

"Comrades! He's delusional, take him to the infirmary" 😂😂

[@joed812]

Ikr

[@amikkr9464]

I can't seem to create even one joke out of this TV Series.

[@Froggdoggg]

HAHAHAHAAH DYATLOV

[@Batman-jm7np]

You mean gulag.

[@probusguy]

Dyatlov : "3.6 Roentgen Not Great, Not Terrible. "

[@thorvanheghe4023]

That is only taking like a röntgenphoto

[@a.k.salazr]

I can’t believe it took me watching the HBO series of Chernobyl to find out there were three people who sacrificed themselves knowing they would die a horrible death to save other people yet most of the world don’t even know of their existence yet we have murders, rapists and other horrible people immortalized in history books and even celebrated

[@Metalman200xdamnit]

I heard one guy actually gave his life to open a closed valve in the cooling pool.

[@danielbishop1863]

Actually, despite everyone's expectations, two of the three divers are still alive today. The other died of a heart attack in 2005.

[@paulvonlettow-vorbeck4302]

I just remembered why I unsubscribed... you almost never check crucial information and you end up being completely wrong.

[@floraidhfinnie4906]

Yeah just boring trivia

[@linos6799]

imma stick with In a nutshell from now on..

[@chrismarek7864]

Even the illustrations of the reactor he used are completely wrong. The RBMK at Chernobyl was a graphite moderated reactor that turned the same water used to cool itself into steam for the turbines, and it had no containment structure. What he showed was more like a Babcock & Wilson pressurized water reactor with primary and secondary water loops and a containment structure. That kind of reactor was the one that melted down at Three Mile Island.

[@crosshairs19]

@@chrismarek7864 I will never understand but okay

[@Hoppy5454]

The safety systems did not fail, in fact they had actually worked very well in preventing an explosion up until they were switched off by the Chief Engineer. The pumps did not fail either, they also were switched off due to them causing the reactor to go into a shutdown state after being left on for too long. The problems began when they switched the reactor back on as they removed "all" of the control rods which is a bit like accelerating your car whilst switching off the brakes. The reactor was heated up too quickly which led to reactor poisoning, this means the reactor was very hot at low output and was out of it's safe operating parameters making it very unstable. The final action that led to the explosion was the attempted emergency shutdown which entails all control rods to be inserted at once to kill the reaction. What the operators were never told is that the rods actually react and flash boil water before they can kill the reaction so the little water left in the reactor was instantly boiled, this meant more steam, more pressure and finally boom which happened in a matter of seconds. Bad design, bad containment, lack of procedures and massive cover ups of defects known by the designers is what caused Chernobyl, it was only a matter of time and it's very important that we are accurate when understanding what actually happened.

[@Azuretxzs]

Well i havent read the whole thing but youre about right but the safety systems failed further is almost everything right...

[@cmerton]

If only they had sufficient vodka stocks in the control room!

[@aurorajones8481]

Id absolutely go on a Chernobyl tour. Its very post apocalyptic, nice knowing you can go back to your comfy hotel room after the tour thinking this could be a global event if worse comes to worse.

[@Tac0Tuesday91]

Aurora Jones you outta thank all of those fire fighters who died trying to put out that fire. If hey hadn’t risked there lives then another explosion would have happened 10x worse then the primary explosion sending debris as far as the Americas

[@ThatGearCollector2002]

Aurora Jones Just make sure you don’t turn into a Feral Ghoul or a Mutant.

[@WomenCoalition]

Aurora Jones Anyway, there is also a place to train for survival, and also for me and everyone to know what the world will be like if there is a nuclear war disaster.

[@philthy122]

A power station meltdown and a nuclear war are very different things.

[@edg6779]

I'd definatly stray from the tour and try find some of the enriched fuel from reactor, bionerd made a video on finding a peice

[@SivaR1020]

If I am in Chernobyl now, I will be like "This is where Legasov and shcherbina were standing and watched the reactor burning 30 years ago"

[@whimsicalenergy]

He didnt mention about the "Elephants Foot" That has lived since then and most likely will live on forever!

[@jack_m2306]

The elephants foot was a result of the nuclear fuel Uranium-235 (235-U(L)) fuel mixing with concrete, corium and metal. This was a result of the explosion and isn't that important apart from it is a radioactive lava releasing 8,000 roentgen an hour, (lethal dose within 4 minutes), and because of radioactive decay, currently 900 roentgen per hour, (lethal dose within 33 minutes) BTW safe radiation is equivalent to 0.3 roentgen per week.

[@radoslavstoyanov87]

50 percent of the video is not about what the title says. But rather about boring trivia.

[@Vinxek25]

True

[@smokeypillow]

to be expected from a channel like this

[@MyAngelReimu]

@@myguyaarav5560 I cannot tell if this is sarcasm or extreme stupidity

[@livovil]

Have to get past the 10 minute mark somehow.

[@Tamara-lg4nd]

Helden Dew the video is 7 minutes long

[@kristerfrank]

Chernobyl wasn't the city. Pripyat was the city for the workers that worked at the Chernobyl powerplant

[@stalinium4769]

Krister F *priblyat

[@MisterChernobyl]

Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.?

[@konseq1537]

Finally someone noticed. Already thought I am the only one.

[@edg6779]

It's VΞXZY lol can we get a longitude/lattitude with that

[@thex1996]

Krister F yea, then they moved out because authorities said Pripyat was radiated and it would br clear in a few weeks, so they had to move out. But unfortunately the radiation didnt end and no one has lived there

[@lostn65]

i like how the workers at Chernobyl 1986 had state of the art wide screen LCD flat panel monitors that can pivot to vertical orientation. And their OS software supported it.

[@MisfitsFiend]

50,000 people used to live here but know it’s a ghost town I’ve never seen anything like it -captain Macmillan 2007

[@lifeishard8577]

My grandfather died to this He got cancer :( i never met him

[@iam47industries99]

My both Uncle were firerighter witch were in the firefighter Helicopter above the reactor...well they both are alive and almost healthy excapt a bold head and some lost of theeth

[@refl3xs738]

I went to chernobyl and i są thereactor

[@refl3xs738]

I saw reator

[@Lizardmium]

My grand grandfather met the same fate.

[@qish]

Lol loser *does take the L Jk bro hope u ok

[@krabistheisopod1376]

50000 people used to live here..... But now it's a Ghost town.

[@Sub-km4nk]

MrBaconGuyAYYYYYY

[@calebcaleb4983]

MrBaconGuy I don’t get it

[@Blazervitch]

nice

[@RickyC0626]

It's also a play on the fact it's a "ghost town," implying that the people that lived there has died and turned into ghosts

[@Blazervitch]

no that's not the point, it's an expression for something that is abandoned and it's a cod 4 reference

[@RamlalChoubey]

Rip to everyone who died they will be remembered they are legends may their soul rest in peace 🙏🙏😭😭

[@Deeznuts-rv7by]

yeah most of were normal people but some were like rlly bad you know, iw outdent call them legends...

[@gabecoop5094]

@@Deeznuts-rv7by It's sad but I agree that just cause people die that doesn't make them legends

[@RealReedBarrett]

Well this is gonna be interesting in the very near future… And the accuracy of “who would win between the EU and Russia” chilling ….

[@AGASI999]

The HBO drama series called Chernobyl is just jaw dropping!!

[@arrakis7132]

Ben smith literally...like with vomiting and cancer cells within seconds of exposure

[@18661873]

....and depressing.

[@giftedsoldier73]

I wanna see it

[@DMCLANDERS]

You must watch it!!

[@amydamjanovic9183]

The rest of Europe: "So, Gorbachev, you wanna tell us why all this radiation is coming at us from your direction?"

[@Kaygey]

whos here after the war started?

[@dianaizaguirre6767]

Anyone here from February 24,2022?

[@ytyoungrichnhigh]

hey!

[@BradDoesBanter]

The rate that you guy's push these out is insane

[@jackalexlester8612]

BradDoesBanter why you here m8

[@notoriousbaguette5574]

Jack & alex Lester that's true why is he here XD

[@TheInfographicsShow]

Going strong!

[@JjJj-pc8cv]

Too bad it’s poorly done

[@BogomilHristov-tm1iv]

@@JjJj-pc8cv I agree. They could have explained the reason for the explosion much better than they did and you don’t need to be nuclear scientist to understand it.

[@throwaway5945]

THE CITY ISNT CALLED CHERNOBYL IT IS CALLED PRIPYAT

[@thorvanheghe4023]

And the official name of the power plant is Vladimir Ilyich Lenin Nuclear Power Plant

[@monskiski01]

Actually there was a smaller city called Chernobyl (sometimes spelled Chornobyl) within the Chernobyl exclusion zone. It was further away from the actual power plant than Pripyat, hence the approx 690 people who stayed and still actually live there, even though there was an evacuation order. Pripyat is the city that gets the most attention in the story of the Chernobyl disaster because it was closer (like, crazy close) and was evacuated completely, and is extremely unsafe for human habitation.

[@syrianball1875]

Well it’s because some of the areas that were close to the city also got rhythm ration so then they called the city of Chernobyl so that’s why

[@julianr00ls44]

Pripyat was next to chernobyl

[@CABakerGaming]

RIP Paul Ritter, the actor of Anatoly Dyatlov. 27, 1986, a April. “There is no graphite, the core is still here.”

[@cloudygor8948]

Hopefully something like this never happens again. Fukushima saids: "hold my beer"

[@aidanomara8245]

"hold my chopsticks"

[@ahanpinto6026]

Explain to me how an RBMK reactor explodes

[@siddharthsamaddar8557]

"I don't have a answer at this moment"

[@morejemmex6367]

@@siddharthsamaddar8557 you see ? No answer as i predicted

[@storageunit2683]

Like this.........

[@ja3662]

Ahan Pinto I can’t

[@TechnicallyTaz]

Twas unstable and they knew it

[@HCUhardcoreUnited]

They didn't tell people about the danger until two days later and every pilot that flew over the plant died.

[@howardbaxter2514]

The public (i.e. international media) didn’t find out until Environmental Chemists at Nuclear power plants in Scandinavia started getting odd readings, in which those people contacted a bunch of nearby Nuclear power plant and found out that it was Chernobyl.

[@disco1974ever]

Helicopter pilots that made hundreds of trips and hovered directly over the reactor fire. They knew they'd die and voluntered. As few pilots as possible did all the work to cover the reactor in sand and concrete as fast as possible. They are heros.

[@farenhite4329]

WHOOOOO COMMUNISM

[@HeavyStorm4]

there's some dark humor about that, when the swedish plant first got the readings they thought they were the cause so they evacuated and ended up outside unprotected from the Chernobyl fallout instead

[@tktshawnz1735]

HCUhardcoreUnited, not every one died, many were poisoned with radiation sickness and few died.

[@darkpaw1522]

1:02 Why am I looking at a lady scrolling on her phone on the toilet lol.

[@jodikarow1846]

"50,000 people used to live here now it's a ghost town"

[@masono.3769]

The emergency shutdown not only failed, but it caused the explosion. The boron control rods had graphite tips. When the EPS-5 (az-5) was pressed, the graphite tips on the rods were inserted back into the core. The shutdown inserted all the rods (which all had graphite tips) into the core, which caused a MASSIVE and UNSTOPPABLE power surge. It is unknown how high it went but the RBMK designed to operate at 3,200 megawatts, skyrocketed and the final reading was 33,000 megawatts. And that is how an RBMK reactor core explodes.

[@giyaasibrahim1806]

Too much talk out of topic. You want tell tf happend go to the point

[@hdjfhebsn]

its because he has no idea what happened... a lot of his facts arent true. for example that 31 people died to the explosion. in fact it was only 1 guy who was in/near the reactor hall atm and a second guy, who died because of the exposure to high level of ionizing radiation. Noone else died directly in the facility, but rather days/weeks after the incident and not because of the explosion but to the high dose of radiation

[@marikiemarie7622]

@@hdjfhebsn yes and he said kids played at the amusement park. I was never opened to the public. It was supposed to open 4 days after the explosion. Obviously it never opened.

[@erikhernandezzz9272]

Oxelot “dUdE” that’s not what they’re saying

[@beluwuga2229]

marikie marie okay? If your such a nerd and most of us just want to learn a bit you might make your own channel?

[@end3avour_]

oww the questions at the end though

[@rebmarliz83]

Who’s here after watching the news today about Russia attacking the Nuclear Plant in Ukraine.

[@NZAnimeManga]

The most unsafe commercial reactor design. Such water cooled, graphite moderated reactors have a high positive void coefficient (the RBMK, the highest). The (SCRAM) control rods were graphite tipped, therefore when they were placed into the core, to reduce power, they displaced water (with the high neutron absorption cross-section of Hydrogen) and increased moderation. This is what caused the power spike. When the water started to boil the same thing happened, the fission neutrons were still being moderated but the water number density decreased (thereby reducing the absorption of the freshly thermalised neutrons), hence an increase in neutron flux, hence a positive feedback loop and further power spiking. Stupid design. Wasn't even in a secondary containment vessel.

[@averagejoe112]

NZAnimeManga pretty much nailed it. Add in some operator error from disabling the automatic control functions and then having an irregular flux distribution due to Xenon equilibrium and subsequent rod pattern adjustments.

[@HavenNemiroff]

The guy even knowingly ignored the limits of the test. What do you think of NaK cooled designs? The reactivity is an issue obviously, but can also self seal in a leak.

[@TheMakerOfShoes]

I Could totally understand what you just said

[@yunan9610]

Umm, is that how you surpass the limit to become ascended Saiyan?

[@shutupMaji]

F. A. N 21 by the looks of it, he achieved this by staying in school

[@DavidMarquez83948]

50.000 people used to live here, now It's a ghost town.......

[@hndrxx8574]

It's '50,000 people'

[@DavidMarquez83948]

Mason Kelly Is it really lol

[@SaranSatnami]

😂

[@veetee355]

Mason Kelly it's 50 000. Not 50,000. 50,000 means 50 people

[@DavidMarquez83948]

vtt355 ok boss

[@YuriYoshiosan]

AZ-5 Shutdown system is the one that cause this problem. When it activated it shut down all reactor in the fastest way (pulling out control rods). The tip of the reactor control rod is made with graphite, which make reaction accelerates. When the reactor control rod pulled halfway, the reaction begin to speed up. Then the emergency power kicks in. But the time isn't enough. The reactor is made for operating in 3.200mw. While the power shows 32.400mw. then the pressure escape which causes explosion. Then all the graphites exposed to air making the radioactive materials go up in the sky

[@marie-pieredwards1532]

The shockwave could have been similar to the Beirut Port Explosion quite recently probably around 2020 or 2021.

[@diaboyos]

"The" Ukraine. You just pissed off every Ukrainian lol.

[@diaboyos]

Artoria Pendragon 😃

[@ukrainianamerican79years72]

Lol yes.

[@nolen1960]

Ukrainian did you make thsi account to reply to thois comment

[@ukrainianamerican79years72]

Greg Nolen I didn’t make this account to reply to this comment. I had the name wayyy before I replied to this comment.

[@cooperrush6474]

Who cares about pissing off fascists

[@alistair1978utube]

Badly researched. Nobody ever played on the ferris wheel. It was due to open on 1 May 1986.

[@seannotconnery8191]

this channel is rife with errors

[@Bojan-tg2vk]

exactly. There live even some old people, old grandmas offered to us their food, even it's forbidden to touch earth, grass, they have their own plants. Offcourse we refused. If u put your atomic/ratio reader near to the ground (concrete, it goes rapidly above 8) but if u put it near the soil...the earth it jumps over 22% which is deadly...but tourist still come. I was once, and never again.

[@terrynixon2758]

People did play on it, it was opened early for morale purposes.

[@Player-st4hn]

5:12 very innacurate, the town was only evacuated around 2-3 days after the explosion

[@charlescraft5582]

The Chernobyl disaster was the worst nuclear accident in history. This man is delusional, get him to the infirmary.

[@erjamesl]

This video really isn't perfect. It lacks a lot of information (outdated nuclear reactor design, workers were essentially all half asleep because of adjusting to new shift time, etc...) and has a couple of small errors (the back up didn't fail, it was turned off as part of the experiment, etc...). So please do not watch just this video if you are trying to learn more about Chernobyl.

[@MisterChernobyl]

And that he sayd it was an a steam explosion, which is correct but, showed a nuclear *NUCLEAR* explosion

[@1L6E6VHF]

erjamesl I also noticed he spoke of "children playing on the ferris wheel". Never happened. The amusement park was to open for the first time when mild weather arrived.

[@nyul9351]

Exactly. Basically he says nothing about how it happened. The video title should be "what did the accident cause", not "what caused the accident", and I would have never clicked on this video if it was correct.

[@Amiaaaaaaaaa]

also wasn’t it because the cooling system failed then all the water became hot steam, bursting the pipes and causing a nuclear meltdown and steam explosion? that’s all I know.

[@strikermate7516]

​@@Amiaaaaaaaaa Not necessarily. What happened exactly is that when they turned off the Turbine Generator (Which supplies Power to the Main pumps for the coolant) this caused the flow of water coolant to the reactor to decrease. As the Water Coolant flow rate decreased, this had adverse affects on the reactor. The RBMK reactors have a positive void coefficient. What this means, is that when the water coolant flow decreased, steam pockets called "voids" started to form, replacing what should be regular liquid water. As more of these steam pocket "voids" formed, this lead to the reactor becoming less cool, as the coolant is turning into steam. The RBMK reactors had very positive void coefficients, meaning that the more the coolant created voids, the more power the reactor exerted. This created an exponential effect where more and more coolant was being flashed into steam, as the reactor became hotter and hotter. Soon after the technicians noticed this, they "Scrammed" the reactor (this is up to debate - some say it was due to the automatic safety mechanism functioning properly). This forces all control rods (which slow down nuclear fission reactions by absorbing neutrons) into the reactor to slow the rate of reaction. However, due to the design of the reactor, this forced the majority of the remaining excited atoms into the bottom of the reactor by displacing the neutron-absorbing water downward, creating a power spike. Because the control rods were so hot, some of them broke and jammed at only 1/3 of their total length in the reactor, not absorbing enough neutrons thus not slowing down the increasing uncontrollable rate of fission occurring. All of these factors led to a runaway reaction where the core of the reactor heated astronomically high and flashed all of the water eventually creating a steam pressure explosion that blew the 1000-ton biological shield off the top of the reactor, leading to a fire shortly after when the graphite moderators made contact with oxygen and instantly erupted in flames, leading to a INES Scale 7 (the highest) nuclear accident event and the evacuation of Pripyat.

[@spyropyro3159]

32 years ago... Time flies!

[@polskiobywatel553]

Stupid capitalists has sabotaged our great nuclear power plant!

[@torillatavataan6862]

Polski Obywatel Stfu communist polack get a life and adopt an ideology that uses logic

[@Mikebrowski]

Wow relax there Edge lord, not sure what have gotten into you but "Polacks aka poles" fucking hate communism. This guy speaks for himself

[@louisebarleycorn4805]

So does radiation

[@Crs-hp4bc]

not really

[@dutchflats]

I believe it's true that the WHO stated (in 2005) that 4000 excess deaths from cancer could or may occur in the future, not that they had been attributed to the accident at the time.

[@namelesscare7982]

Professor Legasov's role and his inquiry aftermath of the disaster should have mentioned in the video. Definitely, he was the main figure in that incident.

[@quarth5330]

You tuber: “14,000 people used to live here.” Captain MacMillan: “50,000 people used to live here.” I’ll believe the captain over some pleb anytime

[@osleg1460]

It was different town Pripyat

[@darenzy]

He was thinking about Chornobyl, it was someting between big village and small town located south of Pripyat which was a city with around 40.000

[@matthewhoffman6265]

Believe confusion is over two different locations, Chernobyl and Pripyat. One was a city one was a town and power plant.

[@Gaussen]

best i can do is 5

[@JohnsonRacing2049]

He’s delusional take him to the infirmary

[@Lissa5628]

Do a video about Chernobyl after the meltdown. Side effects of both humans, animals and the land.

[@thasaucegod7577]

Chernobyl on HBO that mad a show about it

[@flare7376]

Could you guys do a after the explosion part? Talking about the lead that was poured on top and the miners that dug tunnels underneath the reactors to extract the water?

[@Azuretxzs]

That is MUCH MORE complicated and i think that they need to do like and 30 minutes explanation for that so i think no they will not

[@midnytevega2777]

"Where I once feared the cost of truth,now I only ask...what is the cost of lies" - Valery legasov

[@swagatanandpatel6833]

Who's here after watching the HBO show on Chernobyl

[@hologram94]

Come up with original comment before commenting for likes

[@dumb7816]

Meh

[@varunmehta5627]

Nice to know that Indians watch this show too

[@_your_moms_house]

Me

[@johnsmith-yj4vh]

I saw

[@DJAsHeRMusic]

The people working at Chernobyl would not be eating icecream

[@DanielSchmidt94521]

If you don't mind me asking, what software do you use for your animation? I love it. Very nice and clean.

[@fethernet]

Nearly four years later wow

[@milanstepanek4185]

The power didnt surge to 100%, it surged to 1000%. Sick overclock but it lasted like a second.

[@fwyytallon8737]

cHeCh. ReP

[@wonderdogbenji5704]

In my Chernobyl research, I found a log of events for April 26. These logs suggest that this was no accident, as technicians were instructed, by Soviet officers, to continue testing the reactor even after several safety check faults occurred. The goal of the test was to see if the reactor could output at greater efficiencies. Several warnings were given that something was amiss, and the whole event took place over a 2-4 hour window where the crisis could have been prevented. This was all in an attempt to gain more power at the risk of meltdown. The Soviet scientist knew what was going on but being what Soviet USSR was in the 80's they risked their lives disobeying orders, and also by obeying orders as almost everyone in the plant is dead now due to complications due to radiation exposure. The fallout from the accident was far greater than you portrayed as most atmospheric data i could find suggested that the fallout hit the jet stream and was spread across most of the northern hemisphere within a week. The water runoff was probably the worst as it contaminated the river and ground soil. The river was the primary source of water for the region and had massive impact on everything that was living. The soil contamination effected all plants making them radioactive, this in turn contaminated herbivores, then carnivores. This greatly damaged the ecosystem as radiation is much like Mercury poisoning in fish, where the larger organisms have high concentrations of contamination due to their food source being contaminated builds up in their bodies. This has resulted in very high levels of mutation and cancer for most life in the immediate area, which has come down due to the fact that the mutant and cancerous organisms don't live as long and die then trap the radiation in their bodies and are buried beneath the soil locking the radiation away from other organisms consuming it. Countless livestock lost their lives as farmers could not sell contaminated meat. This level of ecological disaster would not occur again until the Fukushima reactor disaster. Fukushima however was caused by a natural disaster not a man-made one like in Chernobyl.

[@FunkyMonkey-ip4xy]

Patrick Mahoney Yeah the fall out definitely hit parts of the UK. There were areas where livestock couldn't be used for food for years. Also the Soviets kept it quiet initially, only admitting there had been a meltdown when other countries started detecting radiation. I still think it takes the piss that the EU is currently paying a shitload of money to continue to make the area safe. It should be Russia / Ukraine sorting it out, seeing as it was the Soviets that caused the mess in the first place.

[@panzerwolf494]

"These logs suggest that this was no accident, as technicians were instructed, by Soviet officers, to continue testing the reactor even after several safety check faults occurred. The goal of the test was to see if the reactor could output at greater efficiencies. Several warnings were given that something was amiss, and the whole event took place over a 2-4 hour window where the crisis could have been prevented. This was all in an attempt to gain more power at the risk of meltdown. The Soviet scientist knew what was going on but being what Soviet USSR was in the 80's they risked their lives disobeying orders, and also by obeying orders as almost everyone in the plant is dead now due to complications due to radiation exposure. " Jesus Christ, no it was not and no they aren't. This was a test that should have been preformed before the reactor was brought on line, but because the chiefs of staff would get bonuses they pushed the reactor to be start up without the tests. Emergency systems were shut off, the test was to start during the day but an outage forced the reactor to stay online. When the night crew came on they took over the test, let the reactor fall too low, and against regulations Dyatlov demanded they climb out of the "iodine well" by maxing the systems out (removing all but a couple control rods, also against regulations). This built up heat which all the circulation pumps were turned on to deal with which drained power too fast for the system to handle when the turbines were shut off so less and less water circulated through the reactor. This meant the water was allowed to boil and the fuel to overheat. Gauges read the pressure building at incredible speed till it blew followed by a hydrogen explosion soon after. There was no secret Russian thing going on, it was a test which violated multiple safety procedures There are also scores of previous employees alive, they're still fighting the current Russian and Ukraine governments for compensation to pay for their hospital bills. There's even videos on youtube about this.

[@krashd]

"This level of ecological disaster would not occur again until the Fukushima reactor disaster." Wrong, Fukushima absolutely pales in comparison to Chernobyl, don't swallow the conspiracy juice.

[@martinondrus6344]

well you didn't gave us any links where did you find info so i have no idea if i should trust you (but i know what really happened)

[@martinondrus6344]

stellvia hoenheim nah Stalker is better

[@beepboop4701]

A lot of people complain about the extra information or "trivia" before the 3:34 mark (when they get into the spicy details), but I appreciate knowing what Chernobyl was before learning how it was sent to Brazil.

[@jymattison7387]

I was in the 10th Grade in 1986; the radiation gotten as far as Up State New York. Our milk farms were putting aluminum inside in our milk cartons.

[@civilialost8008]

“Get out of here Stalker!”

[@yourworstnightmare7343]

This video is absolutely littered with misinformation.

[@dannyeygelshoven6015]

Indeed, a lot of uninformed and false information. Terrible video

[@danieliusb2234]

The Infographics Show or Bullshittery In Every Video

[@yougosquishnow]

Yeah it's pretty inaccurate

[@AA-fn9xz]

Prevent the spread of misinformation! (followed by a giant Soviet round of applause)

[@seannotconnery8191]

“Cut the phone lines.” M A S S I V E S T A N D I N G O V A T I O N

[@todx15]

what would’ve happened if the lid of the reactor just fell back on top of it? would it have spread as much radiation?

[@damn_youre_dense4304]

"50,000 people used to live here, now it's a ghost town" -Captain John Price

[@thegame346]

"Go Green" Nuclear energy is one of the greenest energies on the planet.

[@peter_piper3004]

It is. It’s like airplanes, incredibly safe and it’s renewable. Just... like with airplanes, when something goes wrong, *IT GOES WRONG*

[@geo3106]

@@peter_piper3004 It may not have a carbon footprint, but who told you that it is renewable. Nuclear fuel comes from mines.

[@odobenus159]

@@geo3106 So do the rare earth metals used to make wind turbines, solar panels and the batteries required to store that energy for when its not windy or sunny. As usual, the answer is Thorium.

[@geo3106]

@@odobenus159 For nuclear power plants, uranium, thorium, plutonium, etcetera, is fuel, means it is constantly added for one source of energy to run. Wind turbines and solar panels only require them to build it, not as fuel which is consistently required. Unless they need to build more.

[@markshort9098]

@@geo3106 true it is not renewable but thorium is a waste product that is so plentiful that just 1 average rare earth mine could supply enough thorium in a year to power the world for a year and still have heaps of thorium that would be thrown away due to over supply.. reactors can easily supply the world with power where wind and solar panels can't supply enough power or consistent power for that matter unless we cover the whole planet in them which would cost to much and leave no land for anything else and then theres the massive co2 emittions to make all those wind generators and solar panels and lets not forget the astronomical amount of extra high tention power cables that would have to be built to transport the power to where it's needed.. a solar panel produces so little power it takes around 7 years to recover the amount of power needed to manufacture it in the first place.. all of a sudden nuclear looks millions of time more practical a solution

[@borisslavk01nolastname91]

Tourism company: *allows tourism in Chernobyl* Duty: *GET OUT OF HERE STALKER*

[@dimitrijekuzmanovic5792]

"You will do as I say" is the sentance that lead the big boom boom

[@S1ipperyJim]

Your diagram shows a containment building which was one of the flaws in the Chernobyl plant as it did not have one

[@jasonclarke6981]

God who cares

[@jack_m2306]

@@jasonclarke6981 What do you mean?

[@kayeosguilt7707]

@@jasonclarke6981 I care.

[@jack_m2306]

@@kayeosguilt7707 exactly

[@zombi111980]

@@jasonclarke6981 This Vid is FULL of misinformation! And yes i do care when lies are sold as truth!

[@norma8686]

There are only 2 people living in Chernobyl, not 19. One is a 80something-year-old woman and the other is a man of about the same age. Nobody is actually allowed to legally live in Chernobyl or Pripjat (the city next to Chernobyl).

[@edg6779]

As it's unrecorded as its restricted there are probs more living in Pripyat

[@krashd]

There are over 600 people in Chernobyl, it is Pripyat that is desolate because because adjacent to the NPP it took a lot more damage.

[@tharpie]

Actually, that's where you're wrong. Chernobyl has a population of approximately 690 people, not 2. Now, you are actually kinda right, but people can live in both places, although people aren't supposed to live in Pripyat, as the highly affected areas (and trust me, there are A LOT) really won't be inhabitable for another 20,000 years. Pripyat actually currently has a population of zero, but there are many, many pictures of places there, most of which were taken after the blast.

[@professorkombat2381]

“50,000 people used to live here, now it’s a ghost town”

[@pullingthestrings5233]

This blast got nothing on the nuclear plant that is currently on fire in Zaporizhzhia which could be 10 times worse.

[@arvigaming9067]

We all know those gopniks inside were busy dancing to hardbass until one blyat dropped a bottle of vodka on one of the machine

[@MacDonald2500]

ArviGaming "Ivan you idiot!"

[@NorthernE]

Vadim blyat!!

[@Biden_is_demented]

Get outta ´ere, stalker! Cheeki breeki, blyat!

[@agatkagrzyb653]

lmao

[@firstnamelastname-xl7ss]

Theres always that one blyat who always does dumb stuff all the time

[@captainryanx8336]

S.T.A.L.K.E.R Intensifies

[@OleandyrTheGreatDragonGod]

* Cheeki Breeki Intensifies *

[@specialunit0428]

CaptainRyanX but which one? shadow of Chernobyl? maybe clear sky, or perhaps call of Pripyat...

[@randomgamer239]

Finally found you

[@inhumation_]

Why put a nuclear power plant near a school 🗿

[@novanitrox8530]

Why not 🗿

[@shufflerdsmp_wilbursoot0759]

There was 50,000 people lived there the disaster happens on April 26th around 1:34 am . They were doing a safety testing on reactor four you can vist there in the npp unit 4 but you can’t go inside of reactor four

[@shpoogly]

I'm All Ghillied Up, anyone else?

[@vishalgandotra1328]

And then you got shot and I've had to carry you 😑

[@benh735]

“Oi Suzie!”

[@CameronDowd-cp5ov]

@@benh735”That’s how it’s done”

[@baileypate9460]

Why is Ukraine called 'The Ukraine' The Russia The Cuba The Romania

[@zapdog_]

When people say “The Ukraine” they’re probably referring to the region.

[@cooperrush6474]

Because Ukraine has only existed as a sovereign state for about a century. Before the October Revolution and the Russian/Ukrainian Civil War in 1917, Ukraine existed merely as a region within Russia, thus it was referred to as "The Ukraine". Due to the historical context, calling Ukraine "the Ukraine" tends to piss off Ukrainians, it implies that they still belong to Russia.

[@JackScooter17]

no one days im going to UK they say the UK i guess its the same

[@BQQB5]

@Bailey Pate - are you romanian?

[@firstnamelastname-xl7ss]

If i say the philippines would the sentence sound correct

[@fearfulghouls4812]

The cause is what I got taught was a malfunction in sector 4, when engineers were testing something a explosive happened and seconds after radiation and more explosions were let out massively.

[@Batzoid]

I saw a professor explain what happened. Pretty close to what you said, tomato tomato kind of thing. They were shutting off the plant and testing how much energy it could produce while shutting down. The engineers didn't follow the steps right and it just shut down, once it shuts down you have to wait 2 weeks for xenon molecules dissapate. Instead they tried restarted it immediately. Essentially jamming all the rods in until it started. Xenon molecules are produced during fission, not enough to stop fission but enough to make starting it unpredictable. When it started the reactor exploded. Also. From what he said all western reactors use water to directly cool the rods. Water is less effective then lead/graphite but safer that way a meltdown just produces steam until the water is gone. They used lead or graphite to carry the heat to water. The reaction was strong enough to melt the metal around the rods. I don't remember if this was before or after the water evaporated. There is still molten metal there. Also the reactor was built in a warehouse normal reactors are incased in concrete, that alone would have reduced the effect. Imagine "city council opts to save money by building a nuclear reactor in old mall"

[@BradiKal61]

@ 3:42 the explanation finally begins. You should redo this video using the information from Chernobyl episode 5. The courtroom explanation in the HBO show did a great job of showing why the power levels dropped and why the power surged back up and so fast and exactly why putting the control rods back in accelerated the nuclear reaction.

[@masono.3769]

BradiKal61 yes I did this explanation off of memory of the court room explanation by legasov: The emergency shutdown not only failed, but it caused the explosion. The boron control rods had graphite tips. When the EPS-5 (az-5) was pressed, the graphite tips on the rods were inserted back into the core. The shutdown inserted all the rods (which all had graphite tips) into the core, which caused a MASSIVE and UNSTOPPABLE power surge. It is unknown how high it went but the RBMK designed to operate at 3,200 megawatts, skyrocketed and the final reading was 33,000 megawatts. And that is how an RBMK reactor core explodes.

[@BarrySmoother]

The new generation: Who’s here after watching the new movie trailer The older generation: “50,000 people used to live here, now it’s a ghost town”

[@samxyx]

I had a friend who visited Chernobyl. She told me "it wasn't great, but it's not terrible".

[@Infinite-void908]

Haha nice joke

[@marccz7166]

This video explains for 2 seconds what caused the nuclear accident. The other 98% of it only shows what happened before and after the explosion. This is a historical overview than a proper explanation what really happened there.