Take Anant to the infirmary, they're delusional.

Its the shock, take them to the infirmary

Hi don't mock my HBO degree. I bought it preowened for £10 and it came with my lectures in TV format.

Can tell if ur being sarcastic or not

we had fatilty in gas powered plant due to incorrect isolation do i have to blam the system. i have seen HBO movie their are a lot of misinformation. i believe that something else was going on that is not shown to the public. u don't think that those operators are unaware of such huge danger. we nurmally called power plant action as turtle action due to high sensitivity.

"I have the best words" - D J Trump 2017

"There is no war in Ba sing Se" - the 14th episode of the 2nd season of ATLA

"The virus will die out soon." -Coronavirus, 2020

@@SoldierBoy8686 ain't dead yet or even close

laogai

Thanks 😊 ... then you won’t be dissapointed by my future modelling. It does take time though. Wish I could do this fulltime 😀

That three fireman who leaked radioactive water and saved World from other explosion from lava room up

They died like pigs lmao

@@oliwiermiekus those weren't firefighters.....

@@oliwiermiekus they where soldiers

@@precisionhaze6594 Are you trolling, or a professional idiot?

Hey Karl Satchell glad the effort is appreciated 👍

@@Mike-Bell It IS!

shut the fuck up

Thank you! Exactly! I love they people out there that make youtube videos like this. So much detail and info to ease my wandering mind. Even tho some things fall outside my understanding, I am so thankful that someone can break it down to me in their own way, and just leave me with little something to ponder

Technical mindset? What's that?

LMAO

that is fine everyone make a mistake.

Not good not terrible

Way

Anatoly Stepanovich Dyatlov Don't worry there's 3.6 rotgens, like a chest x-ray, not great not terrible

Microchip planted by Bill Gates in your head put this in your recomendations lol

Is that true? If so Radiation moves up in my list if creepy things

@@marisjanelsins1563 Yes! If you look for photage of the elephant's foot, you'll see a lot more of the white dots and Lin's because of the massive amount of radiation coming from it

@@marisjanelsins1563 in the end, what "colors" film is photons hitting crystals on the film. Gamma radiation is energy emitted as photons, so it's not really a surprise film is sensitive to Radioactive radiation. Although I agree that radioactive radiation is creepy, especially with gamma radiation, as, because of it being photons, you can't really protect yourself from it.

Is this case, the white specs are probably snow seeing as it was snowy, but yes, high energy particles will affect cameras. Thunderf00t has a fascinating video in which he puts an iPhone in the path of a neutron beam while recording. Lots of white streaks and dots

@@fungdark8270 just to be clear though, photons are not particles. That is what makes gamma radiation so hard to protect from.

This man is delusional. Send him to the infirmary.

They shouldn't explode if all safety norms, regulations & measures are appropriately & strictly taken.

Yes they can

@@EuropeanAirsoft they didn't... After many many mistakes, and a incredible 3 GIGAWATTSS of power output, it blew up. BWR, PWR, Fast Breed Reactors, Liquid Metal Cooled Reactors, wich one can take, on average... 25% of maximum output power peak? And hold? Befores it reaches 20% of safety margin, it's already gone. The truth about Chernobyl? Well... Dyatlov died with it.

Explain how a RBMK reactor explodes. You can't!! Disgraceful.

And yet still zakaev goes there to deal arms

And for 40k years it is barren

@@vishah3896 yeah in zakaev's mind,he thought that if he ever got his arm shot off he would grow another one because he was in chernobyl😂

@@sagarock5528 great one mate! 😆😆😆😆👍👍👍👍

@foxo pirkl mcmilan! Best one mate

Not true. It was stated that MOST of Western Reactors can't be re-fueled online. MOST differs from ALL.

Boom

Mike Bell This was a very good video. Many others are around but they're hard to understand when they describe what actually happened. I'm not a nuclear scientist so the videos tend to run away from me. Yours was perfect.

Candu reactors can be refueled while running.

Also, the Siemens design deployed in Atucha NPP I&II, unique of his type, with online refueling and pressure vessel

I’m really glad you appreciate the underlay of the reactor hall floor and steam separator tank in the rubble. I thought that was very useful to understand how the exposion rubble piled up 👍

mrmattandmrchay Hay it’s you! I’m one of your subscribers lol! I didn’t knew you where into Chernobyl’s history!

@@EmeraldEyedBabyBee I went there about 3 years ago, made a series of videos on the elevators in the old buildings :)

I also thought it was underground. Crazy to think the control room was so close though

It was cheaper to build up. Excavation into the ground wouldve been both expensive and annoying.

I seen jojo and mista was right 4 is the bad number

you saw people walk on the reactor lid?!?! Is there a video of this?

@@tanman. Reactors 1 2 & 3 reactor lids were relatively safe to be near for short periods, and due to soviet design. The actual reactor was not encased in a steel frame.

Я согласен. Я очень серьезно отношусь к таким комментариям, как ваш и от других. Я работаю над ремейком этого видео, удаляя неточности и политический комментарий. Это отвлекает от видео. В ремейке также будет дополнительное моделирование. I agree with you. I take comments like yours and from others seriuosly. I am working on a remake of this video removing the inaccuracies and the political commentary. It detracts from the video. The remake will also have additional modelling.

@@Mike-Bell тогда стоит напомнить неискушённому зрителю, что хотя поводом для аварии на "западной" электростанции в фукусиме стало цунами, причины были те же - ошибки конструкторов и неадекватные действия персонала.

@@Mike-Bell когда видео выйдет ?

@@shynodaa Видео с объяснением воздействия кнопки АЗ-5 займет еще около 6 недель. The video explaining the impact of the AZ-5 button will take about 6 more weeks.

@@user-ek5uv9dv2q Да, я объясню это. Нет такого понятия, как "западные реакторы". Советы также построили реакторы на кипящей воде. Yes I will explain that. There isnt such a thing as a "western reactor" The Soviets also built boiling water reactors.

Alpha Six

According to pretty much everywhere, it was more than double that 😂 figures on this video is bs 😂

Thanks TR. Its nice to hear my efforts are appreciated and are helpful. When I coulndt find the visual detail I was interested in on the internet I decided to generate it myself and share it for other likemnided viewers.

This is important. The reactor didn't explode because it was poorly built, it exploded due to mismanagement. If the USSR hadn't been organized the way it was, and perhaps even if Dyatlov hadn't been employed there, we'd not question the safety of nuclear reactors, even if RBMK were deployed just like in Chernobyl.

@@Merthalophor definitely poorly built. An emergency shut down button that makes the reactor explode?

1jeffr thanks, it’s good to know my effort is appreciated and can inform others.

@@Mike-Bell very appreciated. Keep going

Dyatlov had extensive practical experience of reactors which including from the construction of the Chernobyl reactors. However his theoretical understanding of reactor physics was clearly limited especially how at low power the RBMK was extremely precarious. At full power this reactor was predictable and stable however at low power when the xenon poisoning and heat slowing effect were absent this reactor effectively had no brakes. Dyatlov didn’t understand or believe this. The Soviet Physicists knew about low power precarious nature of the RBMK and had included safety procedures to manage the risk.

@@Mike-Bell I'll take your word for it. There is a lot of contradictory statements out there, some who want to paint Nikolai Fomin as a complete buffoon who had no understanding of how a reactor worked, others that say Dyatlov was an irredeemable cunt, certainly how HBO's Chernobyl tried to portray him as well as general incompetence. Statements made by Dyatlov's colleagues seem to contradict this picture however, at least from what I've seen. I wish I had my sources at hand but at least one of them said something to the tune of; Dyatlov knew the reactors like the back of his hand and everyone relied on him. Another reason why I doubt the official narrative is that Akimov supposedly claimed to his death that "he did everything right" which never sounded quite right if he was a totally unwilling stooge in the drama but I've not taken the time to read the actual transcripts and to be quite honest, it was still the Soviet Union, a dead man can be sworn to have said anything.

@@abrahamedelstein4806 Dyatlov knew about xenon poisoning. You can watch his last interview, where he said that, plus on official chernobyl NPP channel, you can find alot of intervies with his collegues, that confirms, that he had realy good knowledge about reactors, even theoretical. Atleast it's all the sources i can remember right now, problably there is more, but they are mostly on russian. If i remember correctly, he doesn't know only about tips, altho Fomin can knew about it (Leningrad npp get this effect earlyer and tryed to warn other npp with RBMK about it, atleast that stated by Valentin Kupnii, that was a director of beloyarsk npp before accedent and become director of... I dunno how to translate correctly, but basicly in charge of sarcofagus). But again, this reactors was realy hard to maintain, even at high power. So there was alot of situation, there operators, in kinda similar condition (after a long working on low energy levels) just "burn" xenon by increasing power inside. It wasn't that common, but it was. So, it's easy to think and blame Dyatlov, as almost whole ussr did, but reality is so, that he wasn't more then a cog. If he didn't be there, somebody else had all the chances of making same mistakes. And that's why "system" was involved and was responsible for all this. If you know about Bhopal, it's somewhat similar situation.

@@abrahamedelstein4806 just a minute! Dyatlov died in 1995... USSR collapsed in 1991... There was no USSR at then!

@@060POTEHb wait... Just wonder how "system" should be blamed on technical issue???

The pool and Ferris wheel bruh. I remember that mission

@@jakelc9597 hardest mission hands down on veteran mode 1 shot 1 kill. Carrying ur partner

He was, in a nutshell, the example of why the Soviet system was a failure. Russia to this day still plays a dangerous game with nuclear.

Yeah, but he was Chief Fuckwit!!!

Valery Legasov was not such a hero as in HBO story

@@pauloconnor2980 I just did Cherynobl on the toilet. Every heard of poo-phoria? Man, its almost 30 minutes ago, it still smells and I still have goosebumps. Amazing feeling and that smell.... smell of victory. Amazing. Thank you for listening :)

@@COFFIE-in4fd really? Could you please elaborate?

A British AGR completely dwarfs an RBMK. Check out the comparison image en.wikipedia.org/wiki/Generation_II_reactor

Rob Fraser so if fucks will kill more people is that what meant to say

Many don't realize that Chernobyl is in the Ukraine, and that Belarus as well as Ukraine, not to mention all the countries which were also irradiated by fallout, were damaged for centuries. Ukraine was considered the "breadbasket of the Soviet Union"...

It was changed just as radiation safety measure. Long story short - 3 and 4 units shared much of same systems as ventelation and etc. And to split, somewhat safe zone of unit 3(and the control room of reactor 4), they changed the layout.

carlwillis.files.wordpress.com/2011/08/chnpp_phase_ii_map_raw2.jpg There you can see exactly where the control room is, and what is covered by the sarcophagus.

How is that shocking? The reactors were fine, all of them even number 4 the day before the disaster.... if you knew anything of what happened and what lead to the disaster you would see how misinformed you are in writing this comment. It was a very specific concatenation of events that lead to it, it’s not like all of a sudden the other ones could end up with the same outcome (unless the exact same mistakes were to be repeated precisely in that order again, which would have been basically impossible unless if done on purpose...), so yes, you and the 17 people who liked your comment are not quite using your brain.

@@KevinS47 22 now

@@KevinS47 Those reactors were heavily flawed by the design. Explosion could happen not just because of Dyatlov (as his behaviors is exaggerated btw, as HBO and many books are based on ,,thruth about chernobyl" book by grigorij medvedvev, which is often inaccurate). You know that Leningrad Power Plant's RBMK once almost exploded too? The only thing that saved them was fresh fuel, so the void coefficient was a bit different. BTW the modifications made to reactors later have still not made them safe enough in case of bad operator. So it's quite surprising they kept them working until 2000, but it was necessary because ukraine needed power. In Russia they function to this day, but russians have lower standards when it comes to human safety and they are too dependent of those reactors, because they have even more of them than Ukraine, and russia is not so wealthy today. But they are not safe.

Some of my buddies back in the day got to tour a nuclear power plant in Virginia for a merit badge, and all they could say was just how incredibly massive the entire facility was inside and out (granted also how amazing it was to see certain things operating etc.) But the sheer scale of it all in consideration with the physics behind how it operates, was I guess very awe inspiring for lack of better words I suppose. One of them is now working on a nuclear sub in the Navy ironically enough.

Glad you liked it!

Yes, but with pathetically low pension and totally neglected by previous and current governments.

@@C2H6Cd Those are not the considerations of heroes.

@@richsackett3423 : Yes, you're perfectly right. Even for that man, who stopped the 3rd world war in 1983 by cancelling rocket attack in the Soviet Union against USA, do you know him? He got some decoration after decades. Pathetic. en.wikipedia.org/wiki/Stanislav_Petrov

@@C2H6Cd It is truly one of the most foul injustices. You should see how we treated our American 9/11 first responder heroes. Beyond pathetic and bordering on criminal. It's bad when a TV comedian has to go to bat against the politicians for our heroes. en.wikipedia.org/wiki/Health_effects_arising_from_the_September_11_attacks

You should try the virtual reality tour

Thanks for the detailed explanation. It is significant that Canadian Scientists were allowed to talk to the Soviets when safety was the focus. But admittedly that was in the time of Glasnost and shortly before the Soviet Union dissolved.

@@jingchenbi7419 They actually thinked in making a larger and cheaper version of the RBMK, the RBMKP-4800 with 14400MWt of power, it was going to be a square block and assembled outside over rails, they would remove a wall of one of the units while still operating, and and move the new reactor block until attaching it to the operating one, so you can imagine a miles long strip of a single modular RBMK-4800. kzfaq.info/get/bejne/kJmPZ9Re2rrUgJ8.html at the 10:42 you can get an idea of what they planned it has to be said tho, that they didn't want to stop it there, the RBMK was originally designed to work at 50% efficiency or more using supercritical steam turbines, so the RBMKP-4800 could have outputs of over 7700MWe per block, they also were thinking in using a fast neutron version of it with 15% enriched uranium that could have much higher power outputs since fast rectors have very small cores that they wanted to make very big, the 1300MWe BN-1200 fast breeder will have a core of just 85 in height and 2 meters in diameter. it has to be said tho that 1500MWe and thermal power are very diferent things, generally the sweetspot for reactors is around 2700-3300MWt, the EPR thermal output is 4650MWt, the Mitsubishi APWR and General electric ESBWR have 4550MWt and a power ouput of 1780MWe, altho japan planes to scall them down to 3280MWt/1300MWe very large reactors are bastards to build, the Chineses are studying to scale the Westinghouse AP-1000 to make the AP-1400 and then possibly the AP-1700 and AP-2100 with a thermal output over 6000MWt

@@jingchenbi7419 China will build a larger 1400MWe version of the AP-1000 called the CAP-1400 at rocheng, and they have planned 64 of Westinghouse AP1000 fully manufactured in china, westinghouse sold china the manufacturing licences in 2009, they already made 4 of those things

@@jingchenbi7419 France? Not really, today, this very day, the leader of nuclear industry is really russia, Chinese reactors are copied from the french and the american designs. The VVER design is a tremndous PWR.

@@jingchenbi7419 The problem of making a reactor as large as the epr, or larger than 3.3GWt is that it becomes hard to engineer and construct, originally Rosatom didn't plan the VVER-1200 but rather a VVER-1500 or VVER-1800, they ditched it for the VVER-1200 because it was easier to do, as a result they build those things in their country for 1800U$D/KWe, and the VVER-TOI they are in road to do it for less than 1400U$D/KWe The sweetspot for nuclear power size is around 2700-3300MWt, where scalability and size meet, larger than that and you need a higher degree of engineering to guarantee the safety of a 4.5GWt reactor that has pretty much the same pressure vessel as a 3GWt one, as such the level of engineering of the safety systems increases more than the possible benefits of a larger thermal output The workhorse of france's nuclear industry has been the 900MWe class, while the reactor on which the epr is based, the N4 has been taken 15 years to construct in chooz and civaux.The EPR-2 hopefully will have around 1300MWe and 3200MWt, it simply becomes less challenging to build. The same issue happened to South korea, they builded the OPR-1000 for 1900U$D/KWe, and when they decided to supersize it into the APR-1400 they ended building those for 2250U$D/KWe, they are planning to replace it with the iPower with a output of 1200MWe and 3200MWt Taishan 1&2 costed around 2300U$D/KWe, sure better than Flamanville and Olkiluoto, but not good enough to be better than the 900MWe french ones. The lower construction time of taishan and less delays has to deal with the fresh experience the chinese have at building reactors, and the more fordist and direct approach they have, they like to have everything built before starting construction, while in europe and the usa they went for a more toyotist way of doing things, or in-time logistics.

Pretty sure this was explained in the HBO series

My next video on the same channel explains just what you are referring to kzfaq.info/get/bejne/prWqfbR7lt-lkYE.html

Glad it was helpful!

Thanks comradski. You will certainly enjoy the next more detailed contents. But perfection takes time ....

You didn’t see graphite.

@NWE he’s in shock get him out of here

Don't overlook that the steam voids are ultimately the result of an increase in temperature. The void coefficient was so significant in this type of reactor that it dominated other coefficients including the fuel temperature coefficient. An increase in temperature creates steam voids, and because the reactor is graphite moderated, it leads to an increase in reactivity, which further raises the temperature and reduces cooling capability - then this repeats - a disasterous positive feedback loop.

Marcus Klyver, Thank you. This account isn't quite accurate as well. For all those HBO naysayers.

Thanks 😊 I like the word.

Thanks 👍

Might as well say bye bye and start dancing with them cus it’s already too late for you

@@Badfriendsfan101 Hahagahaa

As cool as the visual is, that never happened. It was made up by Medvedev along with a lot of other stuff, like Dyatlov being an asshole. Dyatlov made mistakes, but was generally considered a fair dude by those who worked with him. Medvedev just hated him and dissed him every chance he got. It's impossible for the caps to jump. They were not holding back any pressure, as the fuel channels were sealed farther down. The caps were simply there to create an even surface in the reactor hall. Steam would have passed right through them. They weren't 350 kilos either, Medvedev made up that part too. On a related note, Perevoschenko never ran from the reactor hall to the control room. That would have been impossible considering the distance. He was in the control room the night of the accident. Another thing made up by... you guessed it... Medvedev.

@@Galacalactus and who are you?

@@Galacalactus 1:23:42 is when the show says he ran from the reactor hall to the control room. At 1:23:45 the explosion happens... 3 seconds, and people still don’t realize that part is fiction. Of course we sit here and we laugh, but it brings into question the use of artistic license actually being harmful via revising history even though it, the real history is available. To those who do not realize that 3 seconds isn’t enough time to run that far, we either accept they do not live in reality and say that’s fine, or we actually should talk about freedom of speech and the need to curtail it or clearly specify in some way that this part is fictional or otherwise inaccurate. I say all of this not because people are entertained by what I thought was a great show on TV, but because these same people behave in this way on every issue, reactors, economics, sex, violence, etc., and therefore my question above about curtailing or accepting is frighteningly universal, but we must at least ask the question.

Thanks and welcome

My dad was journalist in the 80's and he had the canche to see the project of Chernobyl and he said that was really poor made...i still remember his words "walls should've been 5 meters large and were only 2" 😳

Russia's and China's land is a radioactive junk yard, but not everywhere.

​@@linjunda9617 Radioactive junkyard? Most of russia is unpopulated land with a wild and untouched nature. Russia has state-of-the-art nuclear reactors, its enriched urainum centrifuges are second to none in the world. Bet your shithole couldnt even build a NPP itself. Wtf you even talking about idiot.

@@redsun9261 lool fuck you and your 3rd world russia shithole

Fran Cesco your dad lied😂 they were 2 metres thick. Not 2 inches. (“ is inches)

Awesome, thank you!

Спасибо за ваш комментарий. Я согласен, термин западный реактор - это ошибка. Я собираюсь переделать это видео с исправлениями и включить расширенный визуальный материал. Я не знал, что руководство Чернобыля знало о проблеме с наконечниками управляющих стержней и проводило испытания. В.И. Борец, который работал с Дятловым, находился в Ленинградской диспетчерской, когда в 1975 году АЗ5 разорвал канал, но ему было приказано молчать. Thanks for your comment. I agree, the term western reactor is an error. I am going to remake this video with corrections and include expanded visual material. I was not aware that leadership at chernobyl were aware of the tip problem on the control rods and ran tests. V.I. Borets who worked with Dyatlov was in the Leningrad control room when the AZ5 ruptured a channel in 1975 but was ordered to keep quiet.

Не могли бы вы прислать мне ссылку на доклад, на который вы ссылаетесь, за подписью Дятлова. Это важная информация. Я искал, но не нашел. Это должно быть на русском языке. Please could you send me a link to the report you refer to with signature by Dyatlov. This is significant information. I have looked but cant find it. It must be in Russian.

@@Mike-Bell я полез искать этот документ, чтобы добавить ссылку в мой изначальный коммент, но не нашел. Я видел его много лет назад, когда опубликовали мемуары Дятлова. Пока все что находится - отчет о физпуске, куда этот тест вошел в виде параграфов 2.8 и 3.4 accidont.ru/phys_start.html Кроме того есть письмо на имя Брюханова об обнаружении концевого эффекта на Игналине accidont.ru/PS_letter.html

@@Mike-Bell Спасибо огромное за ваш труд. Действительно, весьма странно считать, что Дятлов не знал про концевой эффект. Тем более, до Чернобыля была авария на ЛАЭС. Кроме того, Дятлов стал поднимать мощность реактора после того, как она упала до нуля. Вот она - роль личности в истории, ярчайший пример. И, само собой, нажатие кнопки "Аварийный стоп" на любом механизме, установке должно переводить объект управления в безопасное состояние, что бы не происходило. Best regards.

great explanation and username

Reactors can be designed to be walk away safe if we want to, though. The need for active cooling measures isn’t an inherent feature of nuclear power technology.

@@chadwells7562 then you don't understand all the current nuclear power generation or how nuclear fusion happens. You first port of call is video of Fukashima. That is exactly what happened, it is because decay causes heat, that cannot be turned off , the second problem is Zirconium is used as rod cladding as it is neutron neutral, and that reacts with steam above 500C to create hydrogen, again the problem of Fukashima and the second explosion at Chenobyl.

@@Tom55data Exactly as I said. It’s a design and engineering choice. The choice can be made to develop a walk away safe reactor, such as a pebble bed.

Sorry to hear that,It was a horrible tragedy hope you are ok,love from Mexico 🙏🏻❤️

@@dario4278 thank you very much, I am doing ok but it has been 3 years since her passing.

@Moy thank you

I'm sorry for your loss and I will pray for your mother 😔✌🙏🇺🇸🇺🇸

What an awful disaster.

Hey Leo. The comments are a lot of fun, insightful thankful etc. they are also helpful and a way to improvement. Some are hilarious and then yes there are the trolls or conspirathists. I will always be replying to as many as I can. Thanks for your visit.

Light water is both a neutron moderator and a neutron absorber. As in, when a neutron interacts with water it can either be absorbed or it can "bounce off" with less energy, i.e. moderate. In isolation, its net effect is predominantly as a moderator, boosting reactivity. In a typical western reactor, the water is the sole neutron moderator. As more water is added, the power increases, and if the water is lost or boils away, power decreases. This creates a negative feedback loop that can help prevent a runaway chain reaction and helps stabilize the reactor. An RBMK, however, is graphite moderated. The graphite moderator provides a substantial boost in reactivity that allows the reactor to run on far less enriched uranium, saving on operational costs. The impact of that, though, is that water is no longer a net moderator but instead a net absorber. This is because there are diminishing returns to moderating neutrons. The graphite is already ***heavily*** moderating the neutrons in the core, and the addition of water through the reactor has a comparatively negligible moderating effect. The water's absorbing effect is now more pronounced, making it a net absorber in an RBMK. Effectively the impact of water on reactivity has reversed compared to a typical water-moderated reactor. In an RBMK, as water is lost (e.g. by boiling it), the power will increase, boiling more water, increasing power more, boiling more water, etc etc etc. This is what is referred to as the positive void coefficient, it is a positive feedback look that makes the reactor unstable. Back to your main question--the water is an absorber in an RBMK, and the graphite extensions are therefore meant to replace an absorber. The reason for this is that it creates a greater differential in reactivity between the rods being inserted and withdrawn. When withdrawn, the graphite is within the reactor and boosts power. When inserted, the graphite moderator exits the bottom of the reactor and power decreases even more. Without it, the control rod (an absorber), when inserted, is simply pushing away the water in the channel, which is another absorber. The water is admittedly a worse absorber than the control rod, but the result is that the impact of the control rod is less significant nonetheless. So the graphite extension helps compensate for this effect.

​@@jordanpottruff3602 Thank you. That is very useful information. It makes a lot more sense to me now.

Da molodec.... Fiat was car and Lada was shit.

@@marosrokyta8292 Watched in Top Gear ?:))) Idiot.

Вроде бы нынешняя арка из свинца, и рассчитана на 100 лет

Why did he pull you inside? Did he think the radiation spread into austria as soon as the explosion happened or did he want to show you the news?

@@goobuhfr The accident was first hidden by Russians 2 days after the accident at the Nuclear power plant in Sweden Forsmark they had a higher radiation level than normal they basically found out something is wrong but did not know were so the Russians had to come out with the accident news at this time radiation was already spread around Europe thats why when the news came out we all had to rush inside the so called dirty cloud was already over Austria, Germany, Poland and other European countries. We also had to take potassium iodide pills.

What radioactive elements were emitted into the environment?

@@phenom9161 I don't know i cant tell anymore as i said i was 6 years old living in Marchtrenk (upper Austria)

What country was the first to put a satellite into Earth orbit?

@@daryllect6659 Even a blind squirrel finds a nut now and then.

@@daryllect6659 a country that no longer exists, 65 years ago. btw how's that manned lunar mission going?