Why Chernobyl Exploded - The Real Physics Behind The Reactor

  • Am Vor year

    Scott ManleyScott Manley

    Dauer: 21:37

    With the TV show doing a great job at delivering its explanation in a manner that most people can easily understand, I felt I wanted to do a more detailed description. So I cover basic reactor physics, explain how the RBMK reactor works, how Xenon 135 works, Why the control rods included graphite tips, and why the reactor became unstable and ran away.
    Many of the diagrams here are from www.nuclear-power.net and they have Lots more information on Nuclear Physics
    www.nuclear-power.net
    And of course I highly recommend the TV show:
    www.hbo.com/chernobyl

z50king29
z50king29

I've watched this 3 times now. Great

Vor 14 Stunden
i asimov
i asimov

Please do a video on SL-1.

Vor Tag
Jeff Czermanski
Jeff Czermanski

Could they have saved it by pressing a different shut down button (AZ5? the six red buttons with wax seals)? Obviously there were a bunch of other things they should have done, I was just curious where they reached a point where they could have stopped/saved it from happening?

Vor Tag
Sheila Walker
Sheila Walker

Wonderfully explained. But, as always, the elephant in the room goes ignored. Regardless how safe reactors are, there is no safe environmentally responsible way to transport and dispose of spent fuel, accidental excursions, and contamination of the environment after an accident. See them dumping the radioactive waste water from Fukushima into the ocean and the projected 100 years just to dispose of Chernobyls little mess, not counting the permanently contaminated surroundings. as perfect examples. Expedience before environment, profits before humanity, one huge elephant.

Vor Tag
Валерия М
Валерия М

mcjuggernuggets

Vor Tag
caribbean joe
caribbean joe

This accident robbed us of a magnificent way of energy production.

Vor 3 Tage
caribbean joe
caribbean joe

I still think it sounds better pronounced "yigawatts" like in back to the future.

Vor 3 Tage
epilobia1 Dinmail
epilobia1 Dinmail

There is not a reactor in the world that cannot experience a scenario in which the core is compromised ,,, this is the lie of nuclear power and the reason for secrecy and cover-ups ... it is a technology that should not endure because what was once regarded as being the 'unthinkable' , has now happened on several occasions . We await the big one , which is what it will take for fools to see sense , by which time it will be too late .

Vor 3 Tage
Zeen Daniels
Zeen Daniels

By design, molten-salt reactors cannot experience a Chernobyl-like situation. Nuclear is the future, it's the way to go...

Vor 2 Tage
Tafwid Seagate
Tafwid Seagate

Its safe to assume, if you're not in the ring of fire country and very rarely have an earthquake, nuclear is a best choice.. Mother nature always have the unique way to destroy humans plan afterall..

Vor 5 Tage
Mark Lawrence
Mark Lawrence

the saturn V upper stage is out of proportion. Ahhh, Xenon 133 Mister.

Vor 7 Tage
Indrid Cold
Indrid Cold

"You didn't see graphite on the ground because it isn't there?"

Vor 8 Tage
MetaPat
MetaPat

Awesome video my man, really helped me understand

Vor 8 Tage
Kv2 Daily
Kv2 Daily

Scott Manly: makes this video Akimov: i'm afraid your mistaken, an rbmk reactor doesn't explode Dyatlov: he's in shock, get him out of here Legasov walks in to the room Legasov: your face is melting dyatlov: He's hysterical Legasov: this room has grown a 2nd head, wait, do rooms have heads? dyatlov: Scott manly, i'm going to see too it that you don't work for any more reactors, not in leningrad, not in moscow, not in anywhere Alien comes in Alien: don't look into the reactor core

Vor 8 Tage
Bill Cosby
Bill Cosby

Atoms and nuclear power are tools of the white male patriRchy designed to enslave minorities and non biological males. Instead of powering the patriarchal society with violent neutrons, we need to power our diverse communities with love, kindness peace and inclusiveness. Imagine how much more energy we could get if we valued each individual atoms contribution to society, independent of their chosen isotope. You dont just need to be U235 to be useful. You can also be U232, or any other element, or a flower if you like. We are all usefull. Also Xenon is not a bad element despite what this male is saying. This person is clearly a racist. More sunshine, and less racist nuclear energy

Vor 8 Tage
Zeen Daniels
Zeen Daniels

@Bill Cosby Then you have no idea how the sun works... 🤷🏻‍♂️

Vor 2 Tage
Bill Cosby
Bill Cosby

@Scott Manley no. The sun brings love and kindness. Nuclear is dark, dreary, mean, and polluting. It is the exact opposite of the sun

Vor 8 Tage
Scott Manley
Scott Manley

Sunshine is nuclear

Vor 8 Tage
WatDaMattaForYou
WatDaMattaForYou

Chernobyl exploded because a hot-headed chief was in charge.

Vor 9 Tage
FUCKER KILLME
FUCKER KILLME

It's not 3.6 roentgen, it's 15000

Vor 10 Tage
The Voices Told Me To Again
The Voices Told Me To Again

Are we all really just going to ignore this mans shirt?

Vor 11 Tage
Gerhard Kutt
Gerhard Kutt

Nuclear is NOT safe ... stop saying that nonesense - purely because of the potential for disaster. This video presentation whilst great technically. confused the audience, because many of the accompanying video graphics did not show Chernobyl and also did not explain that the containment system was so bad there. There was only 1 level of containment, whereas most nuclear have at least 2 to 5 levels. Also the actual number of errors and bypasses there are not explained at all. It was in short a clusterfuck operation. So Scott - you're a great engineer, but this presentation gets a 4 out of 10 from me. It would be good to pull this and redo it so it is at least clearer on what actually happened.

Vor 11 Tage
Zeen Daniels
Zeen Daniels

You are the only confused here. Scott said very clearly that he was to explain the physics behind the accident, not the security flaws or the aftermath. And he did 🤷🏻‍♂️

Vor 2 Tage
Gerhard Kutt
Gerhard Kutt

Interrupting ads sooooo annoying.

Vor 11 Tage
TruthyToo
TruthyToo

This explanation was not great, not terrible...

Vor 11 Tage
tanattecnocraft
tanattecnocraft

Russia downplaying this phenomenal disaster in the 80s’ seems to be repeated by an orange makeup clown in the White House. This time in 2020 with a higher death toll.

Vor 12 Tage
Ariel Falk
Ariel Falk

I see your mom let you on the computer today.

Vor 10 Tage
Shimmy Shai
Shimmy Shai

Yep. The human element involved here resurfaces again and again. Those in power will do whatever they need to make themselves look good. It's just that it's not quite so common to see one as unabashed and brazen about it as The Orange.

Vor 11 Tage
Justin Marion
Justin Marion

Once again....... physics is the real killer!

Vor 12 Tage
MAGGOT VOMIT
MAGGOT VOMIT

Me: Blue Plasma Beam huh? So for a few moments, we weren't a planet.............we were a Space Station!! Kylo: "Pfft Yeah.......a Space Station with a Cap-Pistol!! xD" Me (running): "LOL!! It's still awesome.............Ben So-lonely........MATT!!" 0.o

Vor 12 Tage
Markius Fox
Markius Fox

I like to think they did their best to prevent the disaster, but it was far too late. The lessons learned however are priceless and make the world safer because of it.

Vor 13 Tage
Javier Ordaz
Javier Ordaz

Hmmm, you interested me enough to earn my subscription congrats.

Vor 14 Tage
J H
J H

Why were the reactors 1-3 still running up until a few years ago? I've heard this before but haven't understood why. I get that you can't just flip a switch to turn the reactor off then walk out of the room, the radioactive products that are generated need to be cooled, and the fuel needs to be handled properly and safely, is that what they were doing? That would make sense, but this all happened over 30 years ago, which is why I think there's likely other reasons they were kept running.

Vor 14 Tage
Nina Marotta
Nina Marotta

Thank you for staying positive in the end about nuclear power. TMI and Chernobyl scared the world so badly that nuclear power technology hasn't advanced since the 60s, and most plants are about 40-50 years old. But had we kept building and advancing plants and generating technology, we could have slowed climate change significantly.

Vor 15 Tage
Nina Marotta
Nina Marotta

@Ariel Falk I really wish Phenix and Superphenix's design (sodium-cooled fast breeder) would have caught on. Its use of MOX fuel would greatly reduce our nuclear waste and mitigate the need for on-site or deep geological repository storage. I want to work in nuclear energy but unfortunately my engineering degree isn't applicable to the field. So for now I just use my love of it to advocate for it as much as possible and inform people of how much better it is and can be. The two plants in my home state are at risk of shutdown due to their bailout being involved in a racketeering scheme, but I hope someone saves them. So many people rely on their clean energy, and there is no plan for wind or solar in the area. I don't want to go back to fossil fuels.

Vor 9 Tage
Ariel Falk
Ariel Falk

I worked in nuclear power in the mid to late 80s, and it was really humming. France even had a way to recycle spent fuel rods to dramatically reduce actual nuclear waste. Nuclear power generation in the U.S. (where I worked) I believe was better made, better controlled, and had more knowledgeable people running it than what was happening in Russia during that time. Would love to see nuclear make a resurgence in the U.S.

Vor 10 Tage
Shimmy Shai
Shimmy Shai

I know. It's terrible to think how much was wasted out of fear.

Vor 11 Tage
dreadengineer
dreadengineer

Former nuclear control systems engineer here -- this is an accurate explanation of what went wrong at Chernobyl. Scott, I am legit impressed how you're able to totally switch fields and still be technically competent. You're like a Scottish Neil deGrasse Tyson! The tldr in case the video wasn't clear enough: in certain situations, a scram (emergency drop of the control rods to kill the reaction) actually boosted reactivity (i.e. neutron multiplication rate) instead of killing it. Which turned the RBMK "emergency shutdown" system into an "initiate steam explosion" system. It was just 100% pure engineering failure. Separately, I love those USSR corrective actions after the disaster: "Prevention of the emergency safety systems from being bypassed while the reactor is operating." Just... profound.

Vor 15 Tage
sparkplug1018
sparkplug1018

The operators at the Turkey Point power station demonstrated how not to damage a reactor when they refused to restart it during the Xenon dead time in 2008. Id think that maybe if the Chernobyl operators had been able to do the same maybe this disaster could have been avoided.

Vor 15 Tage
Dirty Whiteboy
Dirty Whiteboy

...stupid physics

Vor 15 Tage
Reality Check
Reality Check

The real reason for this accident was a well-known and understood event called an acute case of simultaneous group cerebral flatulence. This phenomena has been known to cause multiple catastrophic events all over the world. Some just have longer lasting results than others.

Vor 16 Tage
J R
J R

It is so tragically ironic that the reactor had been running under high load flawlessly, but failed when they tried to prove it's safety.

Vor 16 Tage
sparkplug1018
sparkplug1018

Take away in that is that when we run things as they are intended to be run, usually nothing bad happens.

Vor 15 Tage
GR8 Vacadious
GR8 Vacadious

Everyone else: nuclear disaster Russia: tourist attraction

Vor 17 Tage
Gibran Bedra
Gibran Bedra

My God, I just have to comment on how incredible the chemistry is with any discussion about nuclear fission and fusion for that matter. The math and the chemistry is genius; just blows the mind. Way to go Scott; thanks for this video. Quite interesting, definitely educational.

Vor 17 Tage
James Godfrey
James Godfrey

Thank You, I am an x-Navy Reactor Operator. I often find myself trying to explain this to my friends. You did a great job with the detail. Note: This is also the reason why there are no US or Navy reactors with this graphic moderator design.

Vor 17 Tage
mgabrysSF
mgabrysSF

How much of the fuel (if the second theory is in the realm of possibility) was consumed? Surveys have shown a massive fuel slag at the bottom of the reactor chamber.

Vor 18 Tage
sparkplug1018
sparkplug1018

Very little. Nuclear weapons are actually pretty inefficient, I may be off on the number but I think its around 25% of the fuel contributes to the explosion. So in this case,probably less then 1%, if that.

Vor 15 Tage
Cern Green
Cern Green

Would a Fermi model reactor have prevented what happened at Chernobyl?

Vor 18 Tage
Steve Treloar
Steve Treloar

And Fukushima waste water is producing 3 eyed fish and crashing Pacific fish stocks. Nuclear is a pisss poor idea

Vor 18 Tage
∆pertureChromaKey
∆pertureChromaKey

nuclear disasters happen rarely, but when it happens, it's bad

Vor 11 Tage
sparkplug1018
sparkplug1018

Build it right and theres nothing to worry about, assuming the operators are qualified to run it anyway.

Vor 15 Tage
foreignmandirector
foreignmandirector

Physics didn't cause the explosion - the operators' lack of understanding of physics caused the explosion..

Vor 18 Tage
Troy Hendrickson
Troy Hendrickson

lest we forget Japan's little problem...

Vor 19 Tage
ladamyre
ladamyre

Scott, I get it about being afraid to tell the truth about the nuclear power industry, but that BS about it being safe isn't cutting it any more. When some oil or coal workers get killed in an accident, it doesn't result in thousands of citizens getting cancers over the next 50 years that are never connected to the accident and it doesn't render huge plots of land uninhabitable for the next thousand years. Just don't say anything, they're not gonna pay you for running interference for them anyways. Nuclear power is *NOT SAFE* and every nuclear power plant is a UXB. Being a Brit, you know what that is.

Vor 19 Tage
sparkplug1018
sparkplug1018

BS, if you build and operate the damn plant correctly there is nothing to worry about. If you don't like nuclear power just say that, but selling this BS fear is just pointless. That being said if you insist on running a flawed design, or building the damn thing near the coast of a tsunami prone area, well what the hell would they expect. And before you say "oh well it can happen anywhere" I lived near a nuclear station that was hit head on by one of the most destructive hurricanes in recent history, want to guess how much damage was done?

Vor 15 Tage
chellyking
chellyking

300 Gigawatts? Great Scott, Comrade!

Vor 19 Tage
Nathanael Channel
Nathanael Channel

It was the impostor

Vor 19 Tage
IamMagPie
IamMagPie

The reason behind the disaster is communism, the most deadly ideology the world has ever seen. Designflaws, arrogant leadership and the fear of saying no or bringing bad news to superiors all stem from communism. Sadly, people are still dying from cancer even today as a result of the fallout in Europe.

Vor 19 Tage
lanesteele240
lanesteele240

My friend grew up in the area around chernobyl. He said he could count 8 historic inaccuracies on one hand from the hbo series

Vor 20 Tage
lanesteele240
lanesteele240

sparkplug1018 Nah. Im pretty sure he only had 8 fingers on each hand

Vor 15 Tage
sparkplug1018
sparkplug1018

Im sure theres more then 8. But the fact it put this disaster in front of so many people is value in itself.

Vor 15 Tage
Peep Crud
Peep Crud

Everyone gangsta till the control rods start bouncing

Vor 20 Tage
TigeroL42
TigeroL42

Someone please explain to me how the control rod channels and their control mechanisms were separated from the pressure of the vessel or the atmosphere.

Vor 20 Tage
Joel Louzy
Joel Louzy

It was always my understanding that the workers knew the test shouldn’t continue, and their Soviet mentality kept them scared to question a superior and the HDIC was sleeping about a mile away during a test on one of his reactors. I’ve heard many different versions of the story. And most of them tend to agree that the sensors the monitor the reaction we’re all in the upper core and couldn’t accurately know what was going on deep down. I keep forgetting about the HBO series and I need to watch it. I heard it’s a good flick. It’s a fascinating story things like the sarcophagus the elephants foot. I actually took a test in eighth grade that said I should be a nuclear reactor technician. Unfortunately I didn’t live very close to any nuclear reactors. And the truth is the idea scared me until I got into college and learned more about the science behind nuclear physics. Excellent video.

Vor 21 Tag
sparkplug1018
sparkplug1018

The truth is likely that the operators who were qualified to run it knew what was going on, that they'd put the reactor into xenon dead time. But since the chief engineer who was not qualified to run this demanded the test carry on they did what they did. And knowing that they would likely end up in a pretty unpleasant place if they refused they went ahead. Its just part of that type of system, and this is the result sometimes.

Vor 15 Tage
Gage
Gage

I think I read that in the U.S. the SL-1 nuclear disaster happened, they theorize because the operators were trying to free a stuck control rod by hand and it suddenly popped up out of the core.....at which point the reactor instantly exploded.....impaling the worker in the ceiling of the reactor building. Hideous.

Vor 21 Tag
Gage
Gage

This was totally, totally fascinating. I think I even understood it. And I think this partial understanding ONLY comes from having watched so many documentary type explanations of the Chernobyl disaster. In other words, I think it is an accumulation of understanding where one explanation builds on the one before it. But this one is the best by far. So if I understand the explanation correctly, the way for them to have avoided the explosion would have been to NOT raise the lower graphite rods so high up into the reactor where they left space filled only with water below the graphite rods. OR...if they had only done that very briefly and then started re-inserting the control rods to a point where they had the reactor under a more firm control.....and simply having patience with it coming back up to a usable power for their trial emergency shut-down.

Vor 21 Tag
Gage
Gage

@sparkplug1018 I think you are right. Surely they knew the gravity of the situation of operating the reactor in a non-standard way.

Vor 14 Tage
sparkplug1018
sparkplug1018

Gage I think everyone but the man in charge had an idea that something was very wrong. Granted they didn’t know what at the time.

Vor 15 Tage
Gage
Gage

@sparkplug1018 I hear ya. Listening to the explanation of how it happened is painful to hear. I wonder if anyone in the control room had any inkling of the potential for this happening. But I think Scott Manley said that the explanations we hear today are based on advances in knowledge of such reactions.

Vor 15 Tage
sparkplug1018
sparkplug1018

As I understand it, they put the reactor into xenon dead time, which makes restarting it and controlling it very difficult. Had they simply left it alone, and turned the pumps back on this likely wouldn't have happened. On the other hand they'd have had to explain why the reactor would be offline for a few days while the xenon burned off.

Vor 15 Tage
ironman tooltime
ironman tooltime

Fishing 🎣? 🤔

Vor 21 Tag
Valentino Knips
Valentino Knips

As a non native speaker it is really hard to follow your explanations and graphics at the same time. I would suggest that you take some extra time to explain yours graphics (at least x and y axis and highlighting what you're talking about.)

Vor 22 Tage
Not Gary Oldman
Not Gary Oldman

I've heard enough of this guy. Take him to the infirmary.

Vor 22 Tage
Coy Field
Coy Field

We can not afford to allow these children to pollute our planet with nuclear radiation!!!

Vor 22 Tage
Coy Field
Coy Field

Nuclear scientists and engineers should not think or assume..they should know or very very quickly find out!!!

Vor 22 Tage
Coy Field
Coy Field

Nuclear accidents= Crimes against humanity! The Death penalty for all those responsible is too lenient a sentence! Do it right the first time every time or leave it alone!!!

Vor 22 Tage
Coy Field
Coy Field

No human is wise enough or competent enough to work with nuclear technology so put that knowledge up on the shelf for some far later time or it will kill us all off!!!

Vor 22 Tage
Mack Giver
Mack Giver

We'll just stick with fossil fuels then.

Vor 20 Tage
David Fernandez
David Fernandez

If you want to reasure, may be you should have pointed out where they acted against established praxis. When you power down the reactor and xenon poisoning starts to happen, you do not try to power it up, as it becomes very uncontrollable. You wait around 3 days for the xenon to decay and then you can power it up. Seems that somebody did not want to wait and thought he could keep it under control when kt was known it would become unstable. That to say nothing about not having a containment building and all the other things.

Vor 22 Tage
sparkplug1018
sparkplug1018

That would be the normal practice, just keep the coolant circulating and wait till the xenon burns off. However, they'd have had to explain that they messed up and why the reactor would be offline for probably close to a week, which would have likely landed them in a pretty unpleasant place.

Vor 15 Tage
Vogel Hund
Vogel Hund

How you know graphite is on the roof ? because its not there! xD

Vor 23 Tage
phyllis brady
phyllis brady

You know the show was bias against Russia. It made them look stupid. Let's see a similar show about Japan. I bet not

Vor 24 Tage
Commissar-General Auto
Commissar-General Auto

An RBMK nuclear reactor does not simply explode.

Vor 24 Tage
Max Bliss
Max Bliss

Deliberate sabotage because of the weather modifying aspects of Duga 3 electromagnetic standing waves as the collapse of the USSR was known in advance and Duga 3 was in the Ukraine.

Vor 25 Tage
Sarah's Mess
Sarah's Mess

"A group of nuclear workers ran a test. This is what happened to their reactor."

Vor 25 Tage
Sarah's Mess
Sarah's Mess

"Presenting to the control room, where we are now."

Vor 17 Tage
Peter Verstappen
Peter Verstappen

''looks like a human error to me, Dave.''

Vor 25 Tage
HERPY DERPEDY
HERPY DERPEDY

If only they removed the physics it would all have been fine.

Vor 25 Tage
Sam Bowles
Sam Bowles

cost effective design= cheap

Vor 26 Tage
NukeEmRico
NukeEmRico

Imagine how many lives would have been saved if Dyatlov had an "unfortunate accident" before giving the order to resume the low power test. Guy seemed like a jerk anyway

Vor 26 Tage
Cyril D.
Cyril D.

Better explanantion than in some dedicated book I have buyed : Thanks for this Mr Manley !

Vor 26 Tage
Jeramithehuman
Jeramithehuman

18:20 looks like a stock options graph from Wall Street bets

Vor 27 Tage
SurfinZerg
SurfinZerg

thank you for mentioning the fact that nuclear power is one of, if not the safest option for power generation. so many people are paranoid about nuclear power for the same reason people are paranoid about airplanes. when an airplane crashes, or when a reactor melts down, it's a terrible spectacle to behold. where as cars kill a higher percentage of people than airplanes, and all other power generation methods also kill a higher percentage of people than nuclear.

Vor 27 Tage
Loren Wilson
Loren Wilson

Let's stick with fission instead of burn.

Vor 28 Tage
Mark Allen
Mark Allen

Why all the covering for the Russians? Here's the truth! They wanted to see how far they could push a reactor. They got their answer and that's what really happened. The truth is so plain and simple that most choose to disregard it. Yes, you could almost say it was intentional!

Vor 28 Tage
Nirate Goel
Nirate Goel

I wish that there wasn't such a stigma around nuclear generation due to this incident, if proper funding was given to research the world could be so much closer to having clean energy, or atleast energy who's negative biproduct isn't released into the athmosphere with less negative bi-products as well.

Vor 28 Tage
Jila Tana
Jila Tana

Scott, if Nuclear powerplants would be as safe as you want us to think they are, why are they build in remote locations ? My country is pretty small, there are no real remote locations. If my government would decide that nuclear power is needed, they would probably choose a province as far away as possible from the seat of government and the economical heart of the country. Why ? They are so safe, they can literally be build in our backyard, right ? There is no risk whatsoever ? Then tell me, why are they build as far away as possible from economic zones ? I would accept nuclear power if that would be the only option, but I don't want that thing near me. Do you live in close proximity to a reactor, like 5km max ? Cause that would be the distance to any living soul in the Netherlands, would a nuclear reactor be build here. As long as governments put these things far away from economic zones, I don't believe it that they are so safe. What other reason could there be for 'putting them out of the way', then safety for the economic health of a country .......... Don't start about water sources, I'll see that as a convenient lie. The governmental heart of my country is The Hague, it lies on the North Sea coast. The governmental heart of the UK is London, it lies on the North Sea coast. Water plenty.

Vor 28 Tage
sparkplug1018
sparkplug1018

@Jila Tana Oh and there were 1.3 million people living in Miami-Dade county in 1972, when the first reactor was built, and would have had a say in the zoning for it btw. Almost 50 years and countless hurricanes and nothing has happened. It was built correctly, and operated responsibly.

Vor 14 Tage
sparkplug1018
sparkplug1018

Jila Tana The plant was built to withstand winds that are impossible to achieve. They designed it to be safe no matter the circumstances. It also doesn’t matter who lives there you said they’re never built near populated areas and yet here it is

Vor 15 Tage
Jila Tana
Jila Tana

@sparkplug1018 9.59 KM to residential areas according to Google Earth. Did these people have anything to say about it, when the location for that plant was selected ? Probably not. Does any federal politician live in that residential block ? Probably not. I also read about the effects of Andrew on that plant, the damage was there, but not to the reactors. Through the eye of the needle......

Vor 15 Tage
sparkplug1018
sparkplug1018

Google the Turkey Point Nuclear Station, and you tell me how far away from a populated area that is. And by the way, that station was hit head on by one of the most destructive hurricanes in recent history in 1992. Would you like to guess how much damage it took?

Vor 15 Tage
Atlas
Atlas

For safety.

Vor 26 Tage
mingtsuw
mingtsuw

Wait... let me get this straight... we use all these elements to create reactions and carefully create intricate systems to regulate them, just to boil water and turn a turbine with steam?? Meanwhile the process creates a byproduct of radioactive waste that can only be buried under ground and is dangerous for 50,000 years. Hmm okay, sounds efficient to me.

Vor 28 Tage
sparkplug1018
sparkplug1018

What did you think they do? Or any power station for that matter? No matter the power source, save for wind and solar there are byproducts that you don't want. At the very least we can isolate this waste away from people instead of pumping it into the air.

Vor 15 Tage
Ben Wilson
Ben Wilson

The Nuclear Reactor diagram looks very like a water tube boiler.

Vor 28 Tage
sparkplug1018
sparkplug1018

Thats basically exactly what it is.

Vor 15 Tage
lobo G
lobo G

Sleeping 😴😴😴😴😴

Vor 28 Tage
Petru Mihalache
Petru Mihalache

The show? not great not terrible.

Vor 29 Tage
Keith Ansell
Keith Ansell

Yeh building them is stupider then anything look at china we got soaked with waste

Vor 29 Tage
Reek Jyoti Hati
Reek Jyoti Hati

Awesome explanation.. Good job man.

Vor 29 Tage
StoneMonkey3D
StoneMonkey3D

So was the demonstration of the safety procedures a success or not?

Vor 29 Tage
CqldFyre
CqldFyre

“RBMK reactors don’t explode”

Vor 29 Tage
Ken Bober
Ken Bober

My family is from that area. Thankfully they moved to America in 1886.

Vor 29 Tage
Ken Bober
Ken Bober

It didn't. Small village outside Kiev.

Vor 11 Tage
∆pertureChromaKey
∆pertureChromaKey

I don't think pripyat existed in 1886

Vor 11 Tage
Sean West
Sean West

5.6k comments - not great, not terrible.

Vor 29 Tage
UntouchedWagons
UntouchedWagons

Are Neutron Sources the fuel rods?

Vor Monat
Jackass Chicken
Jackass Chicken

My dad was a nuclear engineer, so I can't wait to see if you got it right or not.

Vor Monat
Jackass Chicken
Jackass Chicken

Also, comparing it to a run away diesel engine is another way to describe to people. Especially mechanics, lol.

Vor Monat
Jackass Chicken
Jackass Chicken

Wow, way more detailed than I ever learned! But yep, seems pretty accurate. The other big problem with Chernobyl was that it didn't have other safety features either. Like a huge containment shell made from reinforced concrete and other such materials. That would've contained the blast and radiation.

Vor Monat
Fredric Henning
Fredric Henning

I heard that there were valves to let in cooling water that had to be opened manually, it's just that NOT ONE SINGLE PERSON in the control room that day knew about these valves. Is this true? Sounds like a typical cluster-fuck!

Vor Monat
Corporal Destroyer
Corporal Destroyer

Yo he’s got the hacksmith merch

Vor Monat
DA42PIC
DA42PIC

Actually doesn't explain much at all.

Vor Monat
Edith Eden
Edith Eden

Scott,..... Now you have to do Fukashima. 😱😄✌❤

Vor Monat
Edith Eden
Edith Eden

I bet the reactor was making a crazy insane noise. Sound? Maybe like the sound that dry ice makes when it's excited. Loud chalkboard sound? Dies it make a noise? Does anyone know?

Vor Monat
Michael Wills
Michael Wills

A sufficient explanation. Not great, not terrible.

Vor Monat
Jeff in NC
Jeff in NC

Party Member: Everyone has to remember one undisputable fact,,, RBMK reactors DON'T explode! It's impossible, inconceivable! Nuclear Physicist: So, where did you study physics, and work before this? Party Member: I didn't study physics, and I used to work in a shoe factory...

Vor Monat
Robert Yau
Robert Yau

Sorry can you say that all again.

Vor Monat
Ausama albarzangi
Ausama albarzangi

Look to the bright side. Without the reactor exploding we wouldn’t get to play S.T.A.L.K.E.R.

Vor Monat
bumboclat
bumboclat

You can build reactors pretty safe. Or you are Japanese and put your backup power in the basement near the shoreline.

Vor Monat
sparkplug1018
sparkplug1018

Always wondered what idiot came up with that idea. Meanwhile theres the Turkey Point station that gets hit by one of the most destructive hurricanes in recent history, and they had to replace a water tank unrelated to the NPP. OH and a smoke stack for the fossil fuel section of the plant.

Vor 15 Tage
Jurich Von
Jurich Von

were can i buy that starwars tiefighter transport ship in the background from =D

Vor Monat
John Smith
John Smith

The scientists and researchers responsible for the accident honestly get a bad rep when in theory with the data they had at the time they were within safe parameters. But as we have learned they lacked a ton of information to prevent this accident. Great vid man.

Vor Monat
John Smith
John Smith

@Scott Manley hmm. The long and short of why You are both correct and incorrect is this. Yes this is the written procedure but it was not written in anticipation of the events occured. Secondly electro chemical sensors that exist now to monitor this style reactors in relation to heavy water and xenon present did not exist before this incident and were calculated with formulas that were recalculated post event, that now include the discoverd variables. Thus the discovery of several naturally occuring phenomenon. Cascading event, spontaneous fission, and naturally occuring nuclear fission generators.

Vor Monat
Scott Manley
Scott Manley

Not true, they were told that if the power dropped to this level they needed to shutdown and restart a day later.

Vor Monat
Helen Trope
Helen Trope

How were the rest of the RBMK reactors made safe afterwards or did I miss that? What about the manual with the crossed out instructions? Were they relevant to the accident or was that a red herring? In the TV show they talked about how they should have increased the power more slowly - over 24 hours. Would that have prevented the explosion?

Vor Monat
FitzP Official
FitzP Official

*LIES*

Vor Monat

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