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Chernobyl...18 Years Later
Posted by
michael
on Fri Mar 05, 2004 11:05 PM
from the post-apocalyptic dept.
from the post-apocalyptic dept.
abysmilliard writes "A young Ukrainian woman has posted a photo journal of her motorcycle rides through Chernobyl and the area surrounding it. Included are pictures of the now-emptied city, maps of current radiation levels, and a discussion of how the area has changed. While the english is quite broken, it's often rather surreal, as well, with quotes like, 'I don't know how sound the silence to those tourists that they can not stand it, but to me after hitting a red line on my bike tacho it sound like all those ghosts cursing 1100cc kawasaki engin.'"
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Chernobyl...18 Years Later
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Great thing about driving through Chernobyl (Score:5, Funny)
Friendly public reminder (Score:5, Informative)
Three Mile Island (Score:5, Informative)
(Last Journal: Sunday April 25 2004, @07:19PM)
Re:Three Mile Island (Score:5, Informative)
Though the containment building was very helpful the design of the reactor was somewhat more important, Soviet and US nuclear plants use a different substance as a moderator(could have the term wrong, been a while, it's the thing which slows the neutrons so the reaction can take place). In the US reactors use deuterium(heavy water) as a moderator, if the reaction gets out of control and the heat reaches a certain point the heavywater is vaporized and the reaction stops, in the USSR however they used graphite for this purpose, which does not evaporate in the same way. Because of this, not only was the reaction not contained as well at Chernobyl, but the reaction continued for a much longer period of time releasing more radiation.
Of course the way things were handled also didn't help Chernobyl much, I've seen the footage of the people they sent in there afterwards, they had nowhere near sufficient protection and I've also seen footage of the gigantic lump of plutonium sitting underneath where the reactor used to be. Not a good place for inadequately protected people.
Re:Three Mile Island (Score:5, Informative)
(Last Journal: Wednesday January 04 2006, @11:45AM)
The Canadians use heavy water in the Candu design.
For the details of what happened at Chernobyl see [gsu.edu]
Re:Three Mile Island vs Chernobyl (Score:5, Informative)
Unlike TMI, Chernobyl almost seemed to be "how dumb can we be and get away with it [gsu.edu]". (See the quote: "like airplane pilots experimenting with the engines in flight".)
Re:Three Mile Island (Score:5, Informative)
Re:Three Mile Island (Score:5, Informative)
The photojournalist should get some kind of reward for an excellent presentation. This is the best coverage I have seen to date on the results of "Chernobyl".
Nuclear power for maximum profit - rubber stamp (Score:5, Informative)
Nuclear safety always should be more than just a guy with a rubber stamp - hopefully three mile island and the subsequent court case changed all of that.
Those who think nuclear accidents can never happen in the good old USA should consider superior or more expensive technology is worthless if the lowest bidding contactors don't even do the job, and no-one is there to see that they haven't done the job.
Different situation, different outcome, but we can learn from both, so long as we stick to the technical instead of the emotional, and keep nationalism out of it. The lesson I get from Three Mile Island is to watch your contractors - they may not care if what they do can result in a major catastrophe. The lesson I get from Chernobyl is that a steam explosion is far more catastropic when nuclear material can get scattered around - so the design has to avoid that and try to bring it down to a less major incident.The main problem with nuclear power today is we keep having to subsidise the plants we have - shutting them down is usually a bigger problem than keeping them going. We just have to pour cash in to keep this 1950's white elephant going - at least in the UK where they are not supported by the same weird financial misdirection that makes the US plants appear to make a profit. Maybe when defence in the USA gets pissed off and wants a bit more of their own budget it will also become clear to people in the USA nuclear plants are made up of a lot of expensive parts and require expensive maintainance - it's not a cheap way to boil water.
Re:Quiet Town? (Score:5, Funny)
(http://surazal.nerp.net/ | Last Journal: Tuesday March 30 2004, @12:09AM)
Can you say, "giant paintball game"?
For the love of all that is good and holy, man! There are some subjects never meant to be broached. Like paintball in an abandoned radioactive town.
The potential for evil is purely delicious. Horrible! I meant to say horrible!
Euless, Texas 2001/09/12 (Score:4, Interesting)
(Last Journal: Sunday October 14, @10:49PM)
Re:Euless, Texas 2001/09/12 (Score:5, Interesting)
(http://stefanco.com/ | Last Journal: Sunday October 14, @11:09AM)
Go outside on any clear night and you'll easily see 20 airplanes, and will usually hear an airplane fly overhead several times per hour.
On that night though, I couldn't sleep and went for a walk at 2am. There were no planes, few cars (Mostly cops, some fire engines), no celebrations, no music or loud conversations... just dead quiet.
It was the first time I looked up at the bay area sky and saw only stars, except for a single radar plane which slowly travelled in a giant circle around the area for hours and hours.
Russian Bike (Score:5, Interesting)
Don't believe all that you were fed, go there and hang out (not necessarily this place) and you will find some of our propaganda was true but a lot was/is not.
Riding through there does seem tempting!!
Re:Russian Bike (Score:4, Interesting)
(http://future.wikicities.com/)
Re:Quiet Town? (Score:4, Insightful)
(http://www.mjoelkbar.net/ | Last Journal: Wednesday April 20 2005, @09:29AM)
The moderators modding this up as funny are probably the same modding me down when I wonder why there are 1000+ people being kept without a trial in Cuba.
Engrish rules. (Score:5, Funny)
(http://humancow.cjb.net/)
Holly Bijesus? Is it just me, or would that make a *great* bisexual porn star name?
Re:Engrish rules. (Score:5, Funny)
(http://www.artcrime.com/ktakki/ | Last Journal: Thursday April 26 2007, @11:12PM)
The Passion of the Bijesus?
k.
angelfire? (Score:4, Funny)
Re:angelfire? (Score:4, Funny)
(http://davenjudy.org/)
(Who me? I'm married and work for a living so, by Friday night, I'm too tired to do much of anything but either watch the tube or read slashdot).
Re:angelfire? (Score:5, Insightful)
Re:angelfire? (Score:5, Informative)
(http://www.designstedding.com/)
Re:angelfire? (Score:4, Funny)
(http://slashdot.org/)
still going...
cmon- we can do better than this!!
Slashdot Effect? No... (Score:5, Insightful)
(http://nojailforpot.com/)
Naaa, this is Slashdot. The story has nothing to do with games, SCO, the latest video card benchmark, or esoteric science. Therefor, it should last fairly well.
An anglefire site (Score:5, Informative)
I'm saving a mirror now, if necessary, I can mirror.
Re:An anglefire site (Score:5, Informative)
If somebody were to give this unfortunate person Angelfire's highest "element plan" [lycos.com], it would cost $15 for the setup and $14.95 for the first month, and give her 30 GB of monthly traffic. That might be enough to survive a slashdotting.
It's a lesson (Score:4, Interesting)
Re:It's a lesson (Score:5, Informative)
(http://slashdot.org/)
The RBMK reactors have a positive void coefficient. The rod control mechanisms had been manually disabled for the turbine coast-down experiment (because they kept ramming in the rods, something which should have served as a Big Clue to the operators that what they were doing was a bad idea). When the cooling water began to boil, the reactivity jumped due to that positive void coefficient and the power level spiked 3-4 orders of magnitude in some milliseconds. That flashed the cooling water into steam, which exploded and blew the top off the roof. The 3,000+ degree graphite moderator was now exposed to open air and burst into flame and it was good night, Gracie.
Read Medvedev's book. Hell, read _any_ book.
What's even more scary... (Score:5, Interesting)
(http://mute-net.sf.net/ | Last Journal: Thursday April 28 2005, @03:50AM)
There isn't a hole deep enough to bury this demon in. Chernobyl is the kind of thing that gives me real nightmares. Part of me wishes I never read that book. What a horrible, HORRIBLE disaster.
Re:It's a lesson (Score:5, Insightful)
Re:It's a lesson (Score:5, Interesting)
(http://slashdot.org/ | Last Journal: Sunday July 03 2005, @04:43PM)
That is one brave girl. Smart, too, to have a dosimeter along.
SB
Re:It's a lesson (Score:5, Informative)
(http://www.mooman.com/brianb)
Here's a link to it from Amazon:
Robert Polidori: Zones of Exclusion: Pripyat and Chernobyl [amazon.com]
Gamma World (Score:5, Insightful)
(http://prometheus.med.utah.edu/~bwjones/ | Last Journal: Wednesday November 28, @05:15PM)
Re:Gamma World (Score:5, Interesting)
(http://www.foobarsoft.com/)
It's about a little automated house with no one living there. It told about how it would make breakfast, and clean it up with little mechanical sweeper mice, and the house eventually burns down. The house is in a town that is empty because of a nuclear blast and the only "people" left there is a "shadow" of someone left on a wall from the nuclear blast. Interesting and sad story. The place was just as if everyone had suddenly vanished from the face of the Earth. Everything else was left.
I want to say it was in "A Brave New World" but it could have been a H2G2 book.
Re:Gamma World (Score:5, Informative)
(http://www.seizurerobots.com/)
Re:Gamma World (Score:5, Informative)
There Will Come Soft Rains (Score:5, Insightful)
(http://www.hermelinort.org/)
And swallows circling with their shimmering sound;
And frogs in the pools singing at night,
And wild plum trees in tremulous white;
Robins will wear their feathery fire,
Whistling their whims on a low fence-wire;
And not one will know of the war, not one
Will care at last when it is done.
Not one would mind, neither bird nor tree,
If mankind perished utterly;
And Spring herself, when she woke at dawn
Would scarcely know that we were gone."
--Sara Teasdale
Re:Gamma World (Score:5, Informative)
(http://masterdev.dyndns.dk/drslog | Last Journal: Thursday April 19 2007, @02:20PM)
Re:Gamma World (Score:5, Interesting)
On the other hand, it really isn't that weird. The "nature preserve" aspect is only disturbing in relation to the empty roads and buildings. Without those features to provide the desolation aspect, nothing would seem amiss. Plus, nobody is keeping track of the average lifespan of those horses, which is almost certainly below average.
Still, a fascinating photo-essay either way. And I think it's funny that her Kawasaki probably would have been worth as much as a whole town in that part of the world in 1985.
Much-hyped? I don't think so (Score:5, Insightful)
Is it so? Tell me than, why my friends, relatives, friends of relatives, and relatives of friends have died or are dying because of cancer?
Re:Much-hyped? I don't think so (Score:4, Informative)
(http://slashdot.org/)
Re:Much-hyped? I don't think so (Score:4, Interesting)
(http://slashdot.org/~nutznboltz/journal/ | Last Journal: Monday September 26 2005, @08:31PM)
Published by the Sunday New York Times
September 03, 2000
The loudest protest over the closing of the nuclear plant is coming from a most unlikely place: the people who work there. What's a little radiation when it puts food on the table?
By MATTHEW BRZEZINSKI
There was a time when Leonid Aniskin was frightened of radiation. But that was before he went to work at the Chernobyl nuclear power station. He still remembers his first day on the job. It was in 1987, a little over a year after an explosion had ripped the roof off the plant's fourth reactor block. "The trees in the forest behind the station had all died," he recalls. "The pine needles had turned red and dropped off."
Soldiers were burying the radioactive tree trunks when he arrived for his first shift. Everywhere he looked there were men in masks and dark rubber suits, and orange bulldozers scraping away the contaminated soil.
The station's three undamaged reactors were all up and running by then, ordered back on line by Soviet central planners. While the world was still reeling from a disaster that spewed radiation over much of northern Europe and forced the evacuation of more than 100,000 people, the Kremlin was wrestling with a different issue: where to find workers willing to operate the stricken plant.
Aniskin was 27 at the time, a champion marathon runner and a newly graduated acoustical engineer. He and his wife, Marina, had just celebrated their first wedding anniversary and the birth of their son, Igor. Like most young couples, they were living in a crowded dormitory near the Kiev airport while waiting for a state apartment in a soulless high-rise. In those days, newlyweds faced years if not decades of communal showers and public toilets before they were assigned their own place.
There was a way, however, to bypass the waiting list. The Kremlin was building a new city 40 miles from Chernobyl -- just outside the depopulated Exclusion Zone -- a town unimaginably luxurious by Soviet standards. The nation's best builders had been harnessed for the showcase project, and construction crews from eight Soviet republics were working double-time to erect housing districts in the traditional styles of their lands.
Brand-new apartments were to be had in this "model city," which the Kremlin christened Slavutich after the Russian word for glory, and jobs that paid 10 times the average national wage. All Aniskin had to do to win this Faustian Soviet sweepstakes was sign up to work at Chernobyl.
"When Igor was born," he says, with the conviction of someone looking back on a difficult decision that came out right, "I decided to offer my family a chance at a better life."
It is a warm and breezy Saturday morning in Slavutich. Mothers push baby strollers in the central parade ground, and children play near the memorials to posthumous Heroes of Soviet Labor. In the Riga district, plant bosses tend their flower gardens, while the six-foot-wide Geiger counter over the pediatric wing of the nearby hospital flashes a reassuring 15.4 microroentgens -- about the same as in Denver -- if you stick within city limits, where the contaminated soil has been removed.
Leonid Aniskin has already run his daily 10 miles and is cooking breakfast for his family and me. The aroma of fish and fried potatoes fills the sunny second-story apartment and drifts into the living room, where Igor, now a tall and big-boned teenager, sits transfixed by a sumo wrestling match on ESPN's Eurosport. Aniskin brings out a pot of coffee and clamps his son in a good-natured headlock. "You don't want to become like them," he gibes in mock horror, pointing to the jiggling giants on the screen.
"Papa is a little crazy when it comes to exercise," announces Igor, who has his father's earnest face to go with short, spiky hair. Aniskin takes the rejoinder in stride. His thick hair may have grown silvery around the edges these past 13 years and he may have lost a step or two,
Re:Gamma World (Score:4, Insightful)
Re:Gamma World (Score:5, Interesting)
(http://www.western-alliance.net/lordprox/)
Here is the authors bio [magma.ca] for reference. He does know (unlike most
Re:Gamma World (Score:5, Informative)
(http://www.xplodingplastix.com/ | Last Journal: Friday May 25 2007, @08:22AM)
The link between radiation and cancer has much to do with the increased mutation rate of DNA caused by radiation, which is natural since most cancers are caused by changes in the DNA of a cell. I find it difficult to see why you try to deny this?
It is too bad, but I guess because of the Soviet Union and the turmul in the years after the Soviet Union disintegrated, there has not been done real studies on the wildlife of Chernobyl. (There has been done many studies on the radiaton effects on humans in Chernobyl [ratical.org].) But since all life is related to DNA, there is no doubt that the animals and plants in the area has been seriously affected. Can you show any scientific study that has shown no impact on nuclear radiation on wildlife, we would like to hear about it. And remember, radiation is one thing, but plutonium is one of the mosth leathal chemical poisons in its own right, so if the radiations doesn't get you, the radioactiv chemicals is there for you to worry about the. Again, it is quite natural that plutonium and other radioactive isotops made in a nuclear plant are poisonous, since because they don't excist naturally in nature, organisms have not evolved protections against them.
Re:Gamma World (Score:5, Informative)
(http://www.tinyvital.com/blog/ | Last Journal: Monday January 06 2003, @08:20PM)
Your evolution based argument is pure supposition, and is unlikely given that there are natural compounds with similar chemical toxicity (other heavy metals) and plenty of natural alpha-emitting natural compounds (e.g. polonium).
As far as the chemical toxicity, this [isu.edu] says:
In other words, the chemical toxicity is irrelevant.
Overall, ricin, of Al Qaeda fame, is 10-20 times more toxic than plutonium. Botulinum toxins (the reference bacteria strain for which was found in a refrigerator in Iraq by David Kay's team) is 10,000 times more toxic than plutonium.
Furthermore, I do not deny that high levels of radiation cause cancer, not to mention radiation sickness. What is not well known is that people live and prosper in areas of very high natural radiation.
When one looks at low levels of radiation, the sensitivity is undetectable. Low dose radiation level rules are based on an unproven and somewhat implausible theory called Linear, No-threshold Theory (LNT). This theory is used to derive radiation hazard predictions and exposure standards as one of the first uses of the Precautionary Principle. The theory assumes that one can estimate risk at a low level by applying the ratio of that level to a high level where the risk as been established. The risks for low level radiation dosages are hypothetical, having been derived by this ratioing from populations exposed to much higher dosages (uranium miners, Hiroshima/Nagasaki survivors).
Furthermore, the risk is presumed to be based on total lifetime dosage independent of the rate of exposure. Again, this has not been established scientifically.
You mention Hiroshima. Because Hiroshima had no local fallout, all excess radiation exposure occurred in an extremely short period of time - most of it in a few seconds. Furthermore, the levels of dosage received by Hiroshima victims had to be estimated, which could not be done accurately.
There are several problems with LNT. First, it is based on a very old, discredited model of carcinogenesis which assumes that a single point mutation in DNA is the cause of cancer. In fact, the process is far more complex, with cells having the ability to repair mutations.
This means that the odds of acquiring non-repairable damage are higher if the radiation is delivered more quickly, because a single cell may sustain multiple hits. There may also be secondary effects, due to the death of an excessive number of cells at the same time.
great radiobiologist, the late Harald Rossi summarized the situation as follows: "It would appear...that radiation carcinogenesis is an intricate intercellular process and that the notion that it is caused by simple mutations in a unicellular response is erroneous. Thus, there is no scientific basis for the "linearity hypothesis" according to which cancer risk is proportional to absorbed dose and independent of dose rate at low doses" .
However, lets just assume that LNT is correct, since it is widely used.
Consider this (April 2000):
The Chernobyl catastrophe resulted in vast quantities of radionuclides being released into the global atmosphere, which were easy to measure even high in the stratosphere, and far away at the South Pole . It was a godsend for anti-nuclear activists. Yet according to estimates of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR),
Re:Gamma World (Score:5, Insightful)
Yeah, but nature doesn't get all sentimental or up-in-arms if critters are born with birth defects or die early from cancer. As long as the critters live long enough to reproduce at a growing rate, then that's all that's needed.
Humans are a bit pickier about that pesky "quality of life" issue.
Re:Gamma World (Score:5, Funny)
By the way, I disclaim any responsibility for marauder activity in that area. As the name suggests, there is only one of me, and I am not there. Thank you.
Re:Midnight on Elm street (Score:4, Informative)
there're many 'Chernobyl's in this world... (Score:4, Interesting)
So while there is this collective phobia and aura surrounding radiation, there isn't around other many other toxic threats. Note the security surrounding nuclear materials, but how easy it was to obtain unbelievably toxic dimethylmercury (until someone killed herself when a droplette momentarily touched her protective glove) until recently.
Do you have any evidence? (Score:5, Insightful)
Wow, welcome to the 1940's. Where have you been in this last half century? I'd say the furious over-regulation by governments world-wide is unbelievable. For instance, I now have to recycle the few micro-grams of mercury contained in fluorescent lamps and batteries. Do you know what's the biggest cause of cancer in humans due to chemicals? Salt. Sodium chloride, that is. Do you know what's the biggest cause of cancer due to radiation? Sunshine. Do you know what's the second biggest cause of cancer after tobacco? Obesity. Don't believe my words, ask any oncologist. No, the biggest environmental threat to humans isn't either radiation or chemicals, it's ignorance, stupidity, and paranoia.
Re:Do you have any evidence? (Score:4, Insightful)
Re:there're many 'Chernobyl's in this world... (Score:4, Informative)
Dartmouth researcher poisoned by 2 droplets [denison.edu].
Odd that this happened (semi-recently) at my school, and nobody's ever mentioned it in ANY of the chem classes I've taken...
Re:there're many 'Chernobyl's in this world... (Score:4, Informative)
Now let's say she ate tuna EVERY meal for a whole week...that adds up to what, 21 meals of tuna? How many tuna sandwiches have you had recently? In 21 weeks will you have consumed enough to otherwise qualify you as "mercury poisoned"?
I'm glad the general public has such a say in how our food is raised because, yes sir, I loves me that good old American heavy metal poisonin'! I'll fry it up in my recycled radioactive-waste frying pan!
one phrase... (Score:5, Insightful)
(http://www.topdoggps.com/ | Last Journal: Friday November 02, @03:38AM)
Re:one phrase... (Score:5, Insightful)
(http://slashdot.org/)
It's not just the Sierras, and it's not just you (Score:4, Interesting)
(Last Journal: Monday May 31 2004, @07:30AM)
Urban archaeology doesn't have the following of some hobbies, like stamp-collecting or professional sports, but I can see its appeal.
All constructions, like all people, have life cycles. They're built/conceived, people move in, they're lived-in, they have make-overs/get remodeled, they have mid-life crises/get remodeled tastelessly to hide the structure's growing problems, the spirit leaves/people move out, and get torn down.
If the area is busy enough, there's no gap between moving out and tearing down. And if the area is really busy, there's no gap between the tearing down and the building up, the quest eternal for the Next Big Thing.
Sometimes places die, and this interests people. Pripyat has the dubious distinction of actually being killed, and of course there's some interest in its slowly decaying municipal corpse. And there are other ways for a place to die suddenly too.
Obligatory links:
Come to think of it, there's a place not far from me, pretty much right in the middle of Annapolis, which I need to snap pictures of for posterity's sake. Sure, I'll be using a digital camera, but...
Sad graffiti... (Score:5, Interesting)
I also saw on a
Re:the playground is scary (Score:5, Interesting)
It is about how the "threads" of society essentially unravel within a generation after a nuclear attack, in the face of massive homelessness, starvation and of course widespread and incurable radiation sickness.
Lovely stuff.
Re:the playground is scary (Score:5, Insightful)
(Last Journal: Thursday January 29 2004, @08:43AM)
Shit... I watched that film in science at school... everyone spent the week beforehand getting all excited, because another class had seen it, and told us about how crazy it was.
For the second half, we had no teacher, because she'd gone to do anything but watch it... I don't think anybody ate that lunch time.
It's some scary, scary shit, but if you can handle that, well worth watching.
There was also one recently by the BBC about smallpox, which was disturbing, but not in quite such an extreme way.
What is the scale? (Score:4, Interesting)
I am guessing that she means millirem per hour, but I honestly have no idea. Anyone know?
Re:What is the scale? (Score:4, Informative)
Dunno if that's accurate...
Re:What is the scale? (Score:4, Informative)
Dangerous? (Score:3, Informative)
Yep. Especially when you're wearing jeans, which will be ripped through in a half-second if you were to fall off the bike. I don't ride a motorcycle, but I do know only the truly stupid ride without motorcycle pants+jacket/suit, especially if the roads aren't in great shape and you'd be lucky if days went by before someone happened to pass you by. Same goes for riding without a helmet- dumb, dumb, dumb.
Like the American southwest (Score:5, Interesting)
(http://prometheus.med.utah.edu/~bwjones/ | Last Journal: Wednesday November 28, @05:15PM)
Amazingly scary.
Re:Like the American southwest (Score:4, Informative)
When the bomb went off, you could actually see the bones in your hands from all the X-rays that were emitted from the bomb.
How exactly does this work? When have human eyes been capable of seeing the x-ray portion of the electromagnetic spectrum? Or, is there some grain of truth in this, in terms of the visible light being so intense that it's possible to see vague impression of bones within your hand? I suspect the latter.
Re:Like the American southwest (Score:5, Funny)
(http://elitemrp.net/)
Re:Like the American southwest (Score:4, Insightful)
(http://prometheus.med.utah.edu/~bwjones/ | Last Journal: Wednesday November 28, @05:15PM)
Also, a quick google search reveals that others [aracnet.com] have relayed the same experience.
Re:Like the American southwest (Score:5, Informative)
(http://slashdot.org/journal.pl?op=list&uid=100904 | Last Journal: Saturday September 20 2003, @09:32AM)
Re:Like the American southwest (Score:4, Interesting)
This makes me wonder exactly what those people saw. It obviously wouldn't be a bright flash like a nuclear bomb since it wasn't a nuclear explosion, it was a steam explosion with a tremendous amount of aerosolized radioisotope contamination. So it's a good bet that if this story is true they were actually looking at a blue glowing steam/dust cloud with the glow caused by CERENKOV RADIATION [umr.edu] in the air!! To actually see Cerenkov radiation in the air would mean that the radiation in that initial rising cloud must have been unbelieveably intense, and they didn't even know the danger of the situation......horrifying.
Re:Like the American southwest (Score:5, Informative)
Cherenkov radiation is not observed in air (you need particles with mass traveling with speed higher than the speed of light in given medium , and the optical density of air is low (close to vacuum), the particles would have to travel at speeds near to c - which are difficult to obtain because of relativistic effects. (You can get that from accelerators, but not from fission)
You can see Cherenkov typicaly in water - the blue shine around immersed fuel rods or intense radioisotope source.
There is similar-looking bluish shine/flash around extremely strong sources, like criticality accident with Pu, U, or in nuclear explosion (the mushroom has bluish envelope). This shine is caused by intense ionisation of air molecules by radiation, mostly X-ray. The recombination of ions produces excited states whis give away the surpluss of energy by emission in UV/vis , which also appears bluis white.
Facinating (Score:5, Interesting)
(http://www.foobarsoft.com/)
The MOST interesting thing in the article to me though was the "deafening silence" that is mentioned. The author said that many companies have investigaed doing things like 2 hour tours but the tourists complain and want to go home after 15 minutes because it's so quite it's like being deaf. I wouldn't think that it would be so bad (go to wheat feild in the middle of the US and it's silent too), but I guess it's the combination of all the buildings and normal city sights (with the exception of the fact that there are no people) and the silence that makes it so eerie and spooky.
I bet it's spooky as hell there.
Re:Facinating (Score:5, Interesting)
(http://www.leroux.ca/)
I've been in a few places in Algonquin park [algonquinpark.on.ca] that 75 years ago were there used to be towns, hotels and whatnot. If you aren't keeping your eyes open and looking for it, you will miss the signs.
Now obviously, this isn't going to be the case here, but it will still be interesting to see what can be learned - for example, how are the roads holding up? With almost no wear and tear, the area could serve as an excellent testbed for environmental effects on road surfaces (hot and cold damage, etc).
Re:Facinating (Score:4, Funny)
(Last Journal: Friday February 06 2004, @08:07PM)
If you want to see 1986 in action don't waste your time in the Ukraine, just stop by my office. We program in Pascal on VMS, have no Internet access, and refer to Powerpoint presentations as "View Graphs".
Now if you'll excuse me my New Coke is getting warm.
Mirror (Score:4, Informative)
(http://colin.grady.us/)
Mirror is the site gets overloaded or bandwidth exceeds limit (which can happen with angelfire).
Re:Weird -- and intriguing (Score:4, Insightful)
If you're interested in that sort of thing, you shouldn't be looking at Chernobyl as an example, you should be fact-finding Nagasaki and Hiroshima. _Those_ are examples of nuclear devastation during wartime; Chernobyl was the result of an nuclear accident involving a power plant reactor meltdown. Quite a different situation.
Reporting (almost) at the time (Score:4, Funny)
(http://www.goldmark.org/dodgson/ | Last Journal: Thursday July 05, @02:11PM)
Q: Why do we celebrate the October Revolution on November 7?
A: Because that is when TASS (Soviet news agency) saw fit to report it.
Favourite Quote (Score:4, Interesting)
(Last Journal: Thursday September 08 2005, @03:18AM)
Now, does that sound like the Soviet Russia from a bad movie, or what?
Pompei (Score:5, Informative)
(http://microsoft.toddverbeek.com/)
(She - apparently by mistake - skipped page 16, which you can access by modifying the URL manually.)
Radiation exposure in Kiev (Score:5, Informative)
(http://drpa.us/ | Last Journal: Friday December 20 2002, @02:36PM)
Hidden page (Score:5, Informative)
Re: Hidden page (Score:5, Funny)
Eerie.... (Score:3, Interesting)
I've been to Ukraine... (Score:4, Insightful)
(http://thedragonstales.blogspot.com/ | Last Journal: Friday October 05, @02:38PM)
I've been to Ukraine 3 times in the past 2 years: my gf is of Ukrainian extraction. Chernobyl is a name to conjure demons with there. Even more so than in the West. What's even scarier is that the Ukrainian government's denial over the state that it is in. They still are running at least a couple of the reactors and they are not being terribly maintained. The Russians came out stating that the buildings that the reactors are in are about to collapse...yet the Ukrainian government is unwilling to shut the place down.
Expect a sequel there, folks, and it's gonna be just as ugly if not worse. To make matters even more horrifying, based on the behavior of the Ukrainian government, the people are going to be informed through western sources long before, but far too late even so, that anything wrong is happening there when it does.
Note I say when, not if. I really mean it too.
Re:I've been to Ukraine... (Score:5, Interesting)
However, the cement structure encasing reactor 4 (the one that went boom) is starting to show signs of wear and about 10% of it is cracked.
Scientific types are warning about structural failure happening sooner rather than later. The real issue here is repairing that, because when it comes tumbling down we're going to be in a world of trouble again... and what with the no-soviet union anymore, good luck convincing anyone to go to ground 0 and clean it up (rather than forcing them to do it at gunpoint.)
Radioactive dust washes off roads in the rain... (Score:4, Interesting)
Re:Radiation levels variations? (Score:5, Interesting)
(http://www.lcscanada.com/jaf)
My guess would be that asphalt absorbs less radiation than dirt/dust/mud/plants do.... whenever it rains, more radioactivity is washed off of the road and onto the areas around the road.
Re:Nuclear technology has always been a nightmare (Score:4, Insightful)
Nuclear power is dirty, but... unless we use and research it NOW, it'll always stay dirty. Coal plants, while still emitting pollution, are MUCH more efficient and much LESS polluting than they were 50 years ago.
Mayak - another nightmare that lives on... (Score:5, Insightful)
(http://mute-net.sf.net/ | Last Journal: Thursday April 28 2005, @03:50AM)
No, it's not overblown at all. I can deal with a lot of things but this is one that I don't want in MY backyard!
It doesn't take much of this radioactive shit to cause a serious disaster. I agree with using something like Yuca Mt. to store it all in but even this has problems.
1) Transportation. Getting it there will be more than half the fun. What if there's an accident on the way in? Which town along the way will become the next Chernobyl?
2) Possible environmental consequences. Things like water table contamination are a real concern.
3) Natural disasters. A sudden earthquake or volcanic activity could certainly ruin your day.
Can you predict the future for 10,000+ years? That's how long a site would need to remain stable.
Of course, where it's all stored now is a bigger nightmare because it can hardly be protected - particularly from terrorists. Then there's the waste of the plants themselves. I haven't heard any real info on what to do with a decomissioned plant yet other than just 'leave it lay'. Not good at all.
I'm not nuke-phobic, but I am realistic about man - an imperfect being handling something that you simply CANNOT make a mistake about.
The sad thing is, this is hardly the first time this sort of thing has happened. I don't usually support Greenpeace, but check this info out about the city of Mayak since a nuclear disaster. These people still LIVE THERE! Some of the pictures in their image gallery are quite disturbing:
http://archive.greenpeace.org/mayak/index.html
Re:Makes you think... (Score:5, Informative)
(http://www.tinyvital.com/blog/ | Last Journal: Monday January 06 2003, @08:20PM)
The graphite moderator reactor has a positive temperature coefficient, so it is inherently unstable. The fact that the graphite burns isn't too neat either.
Before anyone starts trolling... (Score:5, Insightful)
(http://www.geocities.com/zuperdee/ | Last Journal: Friday April 07 2006, @06:37AM)
1) Chernobyl was based on very old technology. Nuclear power is much safer today.
2) France gets >80% of its power from nuclear sources. Nuclear power is one of the cleanest sources of energy in the world. (I have nothing against fossil fuels, either--at the moment NOTHING has proven as economical. But I do think ultimately, we will have to find alternatives, and nuclear power is certainly a viable option.)
3) It is my opinion that the worst part of Chernobyl was the way the communist regime tried to keep it a secret, until they found out that it was just so big they simply couldn't keep it a secret anymore. Sure, many other governments in the world (and I am NOT naming any ones in particular) have also been forced to fess up to things later, but that is NOT an excuse. The Russian government was truly evil, and I will not retract that statement, as long as I live.
Re:Before anyone starts trolling... (Score:4, Insightful)
(http://www.lcscanada.com/jaf)
Assuming the plant is well run, never attacked by terrorists, and the nuclear waste it generates never leaks into the environment. And if any of those things DO happen... well, 48,000 years is a rather long time to wait before you can move back home...
An irony (Score:5, Interesting)
(http://www.rffm.tk/)
The rats aren't mutilated or anything, they just happen to adapt.
Re:An irony (Score:4, Interesting)
There's a bacteria that can live in high radiation places due to high redundancy of DNA. Those suckers have 5 copies of dna on 1 long strand, and can auto-correct incorrect bits. And multiple strands per cell.
Re:An irony (Score:4, Interesting)
(Last Journal: Sunday June 08 2003, @10:05PM)
That bacteria would be Deinococcus radiodurans. Literally, 'strange berry that withstands radiation'. Its trick is actually several copies of important genes on different chromosomes, so that it can line up a good copy with a bad one and rapidly make the repair to damaged DNA. From this site [umr.edu]:
The genome for D. radiodurans is available from TIGR [tigr.org].How to annoy a Jehovah's Witness with Chernobyl (Score:3, Interesting)
(http://www.goldmark.org/dodgson/ | Last Journal: Thursday July 05, @02:11PM)
Now, there's been a group in every generation since Jesus that has managed to find evidence that it is the generation of the apocolypse. So far, they have all been wrong, but that doesn't seem to bother contemporary apoclyptics.
But they do have a clear idea of where we are in the sequence of events. As you can imagine most of the fitting of events is somewhat vague, or takes some generosity of interpertation. (Please bear with me, this is going somewhere). But there is something that is very late in the sequence (and lots of very dramatic things need to happen before it). This event is
And what is the Ukranian word for "wormwood"? Chernobyl.Somehow this news of the meaning of "Chernobyl" tends to disturb people who believe we are in the end times.
I Have to say (Score:5, Insightful)
(Last Journal: Sunday November 03 2002, @01:58PM)
Wow. (Score:4, Interesting)
(http://rav.realitybytes.tk/ | Last Journal: Friday December 23 2005, @12:53AM)
The abandoned ferris wheel and barges gave me a serious case of the willies.
Mirror (Score:3, Insightful)
(http://brian.skahan.us/)
Wow, that's the most powerful thing I've seen on the internet in a long time.
Many more pictures here.... (Score:5, Interesting)
(Last Journal: Saturday May 13 2006, @11:12PM)
I have mirrored it. (Score:5, Informative)
(http://jabberwock.ca/)
http://ryans.northernwatercolour.com/chernobyl
I also included page 16 which she mistakenly skipped in the linking, it shows a swimming pool.
Lol. (Score:3, Funny)
(http://www.kurtspace.com/ | Last Journal: Sunday November 04, @10:10PM)
Yeah, I suppose that oughta send a clear message
There is something sad and beautiful (Score:5, Insightful)
(http://web.mac.com/zav | Last Journal: Wednesday May 28 2003, @04:24PM)
It is eerie that a beautiful young woman would be our guide. Eerie that she would chronicle this deadened scene for us to view while enjoying the freedom it gives her, well aware of the danger and of those who died and still suffer the effects of the worst nuclear disaster the world has ever known.
As I slouch back in my chair, well aware of the life around me in this chilly San Francisco evening, it becomes clear that sometimes the internet offers us too much.
Safe passage Lena.
Re:There is something sad and beautiful (Score:5, Insightful)
(Last Journal: Wednesday January 18 2006, @06:02PM)
Disasters can happen on purpose, too.
Creepy Amusement rides (Score:3, Interesting)
(http://slashdot.org/)
Most moving thing I have ever seen! (Score:3, Insightful)
She is, I am very certain, very fast moving on that ZX-11.
More so moving, I have perhaps never been so humbled as a human being as viewing her site. It should be praised. Insight into one of human kind's saddest tragedies that I rarely think one person has, and she can convey it to others so completely.
Thanks. I learned a lot more from her site than I expected to by following that link.
the "REAL" death toll and the real story (Score:5, Informative)
While not wanting to diminish the size of this catastrophie, it is nevertheless very important to actually look at the numbers and to put things into perspective.
Please refer to the papers from the United Nations studies on this. They can be found here: UN website on the Chernobyl Disaster [un.org]
Starting with paragraph 1.26 we find a discussion. In paragraph 1.28 we find that there were some 2000 cases of thyroid cancer attributed to the radiation (iodine). However, thyroid cancer can be treated and there is no real death rate associated with the thyroid cancers.
Next we find that the anticipated development of leukimias has not occured. In paragraph 1.36 we find this quote: unexpected appearance of early childhood thyroid cancer, the unexpected absence of leukaemia stemming from the accident.
In paragraph 1.38 we see that there is a iodine deficiency problem in the population and that addressing this problem in a timely fashion would no doubt have made a considerable difference.
Starting with paragraph 2.01 on page 30, we have a history of the event itself. In paragraph 2.03 I131 is discussed. This isotope has a half life of 8.05 days and were the population given an ample supply of non-radioactive iodine - through the use of simple iodized table salt - then the radioactive version would not have been picked up.
It is really unfortunate that iodine pills could not have been distributed faster!
On page 56 we find more telling information. 28 highly exposed individuals died within 4 months of the accident (see box 4.2). In addition to the end of 1998, 11 others died.
in paragraph 4.18 we have more discussion of the thyroid cancers, and the esitmation is made that the total number could be as high as 8,000.
In the end, while this certainly was a major disaster with an impact on innocent people that should not be underestimated, we are still left with the facts that the media overestimated the impact and the death rate by many orders of magnitude.
In fact some of the pictures clearly demonstrate this. If one looks at the flora and the fauna in the pictures we see groups of wild animals happily running along totally oblivious to the radiation.
These animals have a faster metabolic rate than humans and thus are not as radiation hardy as we are. Yet they are clearly thriving and the world they are living in, and rearing their offspring can only be described as very beautiful.
Yes the radiation is there and yes it should not be scoffed at. But the pictures clearly show that animal life is not impacted all that much. Those horses look pretty healthy and pretty happy to me!
Re:the "REAL" death toll and the real story (Score:4, Interesting)
Here is another real story:
a PDF document [carleton.ca] about a town in Iran with a comparable level of the natural background radiation, and people live there quite happily (or as happily as one can live in Iran, for that matter).
I was close... (Score:5, Informative)
Another Ghost Town: Centralia (Score:3, Interesting)
This fire started in 1961 and still burns today. Centralia no longer exists on some maps because it has been deserted (by most). Due to the underground fire, some portions of land is too hot to walk on or has simply been dried out/burned to a crisp from the heat below. I wish I still had pictures of what I was able to take (lost the pics in a HD crash.) - From a slightly higher viewpoint, you can literally see a band stretching across... sort of like a slow moving creature devouring everything in its path and turning it all charred black or seared white.
One of the most interesting things I came across was scorched wood near an open vent: The steam coming up from the ground carried copper and baked it into the wood/bark. Lots of rocks were simply bleached white from the heat. I tried to be a dumbass and stood near an open vent to piss on the rocks... the heat was pretty damn intense. My shoes started melting (though I was standing a bit away from the vent) before I could finish urinating.
A link. [offroaders.com] (I used some info to correct my faulty memory.)
The Chernobyl Photo Journal is _stunning_.. I have considered going back to Centralia in the summer to do a more extensive photo documentation along the lines this young woman has. Beautiful work. First thought in my mind when I saw some of the pics was how desolate Centralia was as well... very erie and hard to describe if not for pictures.
Pattern here (Score:3, Insightful)
Houston, we have a pattern.
i remember (Score:3, Informative)
More Chernobyl Images (Score:3, Interesting)
(http://devar.dyndns.org/ | Last Journal: Friday August 20 2004, @12:34PM)
I could not find the original hosted site, but I had it backed up so I uploaded it for everyone here. It is very haunting. Anyway, check it out:
http://ii.net/~eenhoorn/s/Chernobyl/chern.html [ii.net]
Many Children are ill (Score:3, Informative)
(http://www.accessiblesolutions.com.au/)
My visit (Score:3, Interesting)
(http://www.kruczkowski.com/)
It was truly amazing, I hope that they make a good movie about it becouse it seems that most people only learn about the world from movies.
In the museum they had two newspapers, one a Soviet and an American the day after. On the American the disaster was on the main page as the headline. On the soviet it was on the 6th page in a little box in the cornner.
Once the Soviets figured out the shit they were in - on the third day - they started to evacuate people. There was one film they showed of little kids playing, you could see bright flashes in the film. It was from radiation on the film. (Think airport xrays)
Another film showed the clean up crew. Each soldier was given a gas mask and a iorn vest. Before the door the took a shot of vodkia and walked out - Each man would shovel for 30 seconds and then go home. Most died a few days later.
On a side note my parents and brother meet some local people and they went out to a beach on the river (look at the map on that website). My father was just reciently diagnosses with tyroid cancer (in germany) a was not too happy so none of them swap just watched. Later my dad finds out that they were in the red-zone. Mind you there were a lot of kids playing in the water.
For those who may not know - the nuclear plan was just recienty shut down ('98 i think). It had been in operation for quite some time (using the remaning reactors)
Extensive damage (Score:3, Interesting)
Touching (Score:3, Insightful)
(Last Journal: Monday June 14 2004, @12:15PM)
I found it strange that the tourists who went to the ghost town were disappointed that it was so quiet! I would have thought that was the point.
Great stuff! To be commended.
She did admit that radio-activity on the roads she travelled is still many times normal background. I hope her dad knows his safe doses well...
Cyberpunk (Score:4, Interesting)
I think it's the duality between the rusted-out poisonous landscape, the hot motorcycle, and the logo jacket.
Very cool. Best
Distributed Mirror (Score:5, Informative)
(http://kalak.dhs.org/ | Last Journal: Saturday March 12 2005, @04:12PM)
This way I'm Karma whoring for doing some real work for this wonderful site she made, and oh yeah.
My Uncle Was In Chernobyl And He Survived It (Score:5, Insightful)
(http://www.slashdot.org/)
My uncle was a member of one of the first rescue teams that were sent to Chernobyl after the disaster. This might be slightly off topic, but if you think that the pictures of the empty city are disturbing, take a look at people who were there after the tragic event.
I hate a lot of things about my former country, the Soviet Union, and its leaders. One of the things that I hated the most was the fact that people were never told the truth. In May of 1986 my uncle was told that he had to go to Chernobyl to help patch things up. Since he was a memeber of an elite task team that was a part of chemical forces, a special unit within the Soviet Army, he had no other options. He went there in May and he spent some quality time there. His major task was to drive tons of cement to a helicopter that would drop it off on the damaged reactor.
The not-so-funny thing was that nobody who was in my uncle's shoes knew what was going on there. The superior officers, had to tweak radiation meters down so nobody could find out the real level of radiation. People did not have proper protection, tools to work with; moreover, the Soviet leaders did try to play things down a notch. Afterall, how could a superpower have a major disaster?
Out of all of my uncle's rescue team, only a dozen or so people are alive now. All of them are disabled. My uncle has problems with his eyes and due to this fact he had to quit his job: he was a professional photographer. The Ukranian government pays him a small pension, not enough to buy food for a week. His immune system got reduced down to 60% of what he used to have. Still, he's better than his son. My cousin's system is 40% of the normal level. I remember reading a newspaper about a woman who had to buy a bottle of vodka every day. She did it because her husband could not surive through pain without it. Just as my uncle, he was in Chernobyl trying to fix the Soviet problem without exposing it to the rest of the world. That guy was lucky. His kids had been born before he went to Chernobyl. You won't believe how many stories I've heard when people just wanted to die without pain and suffering.
Finally, here is a surprise for you. Chernobyl is not the only empty city. In fact, if you want to see more of them, you should travel to southern Belarus. See, due to the winds and the rain that happened right after the disaster, most of the radiation that escaped in Chernobyl ended up miles away in the neighboring state. In fact, Belarus recieved more damage than the Ukraine due to the wind pattern for that day. Most of the winds blew from the Ukraine straight into my motherland and the damage was done. I was lucky. Although I was in the rain that day, most of the radiation passed around my town. However, many towns received a solid amount of radiated water but the government did not do anything until it was late. As I said above, the government did everything it could to cover up the problem.
We were told to burn our clothing and take a shower. That is it. That was the f*cking Soviet solution to the problem. Months later dozens of small towns were evacuated. People left leaving everything behind in hopes that they would return. Return my ass. The only people who returned were either looters or bums who scored nice houses where they could live. Years later, after the Soviet regime had collapsed, some reporters were providing us with information places that were emptied out. Most of these places are still there. They are a real time machine. If you go there, you'll see pretty much everything as it was in late 80's. Pictures of those places are distrubing, but not as bad as pictures of kids with cancer or disabilities due to the Chernobyl disaster. As for me, I am afraid of having a child myself. Who knows what got inside of me during that f*cking rain... All I know is that some of my friends started to develop problems already.
Have a nice day.
This years documentary short Oscar winner (Score:3, Informative)
This past Sunday, the Oscar for Documentary Short went to a film about Chernobyl:
Chilling... (Score:3, Insightful)
My hat is off to her and others that document this as a monument to those who lost their lives, their loved ones, and their homes. These people died needlessly at the hands of those that considered human life to be secondary to political goals.
In a time where we all worry about the possibility of a rogue nation, or a terrorist triggering a nuclear or "dirty" bomb, we need to look at this and be aware of the outcome.
May this tragedy never be repeated.
-dh
Anyone got more examples? (Score:3, Informative)
http://www.interlog.com/~grlaird/uraniumcity.ht
Damn! She's smokin hot! (and not in a radioactive (Score:3, Funny)
(Last Journal: Friday November 18 2005, @02:06AM)
Re:IN SOVIET RUSSIA... (Score:5, Insightful)
Anyway, these are great pictures. Most people have forgotten about Tchernobyl now -- I bet practically everyone thinks that life is just going on there normally by now. The pictures show us the dangers of working with nuclear energy -- one small mistake, and the whole region is doomed for a long time, far beyond the lifetime of a single human. If this doesn't teach us a lesson about safety and security, I don't know what will.
Re:IN SOVIET RUSSIA... (Score:5, Informative)
(http://www.alsa.org/ | Last Journal: Tuesday September 27 2005, @09:02PM)
Yeah.. Lesson One is don't use an RBMK reactor with no secondary containment. Current (and future) designs have Fail-Safe systems where, should the control system fail, the whole shebang fails into a "safe" mode (control rods are dropped which effectively stops the reaction and free-flowing coolant is delivered to alleviate residual core heat). TMI would have failed safe, except for incorrect operator intervention.
Chernobyl was also utilized to produce weapons-grade plutonium as well as civilian electricity, which is why the graphite moderator was used (instead of water, as in US civilian designs). When the graphite burned, the temperature shot up very quickly and the reactor exploded through the pressure-seal which was the only line of defense (not the reinforced concrete secondary containment vessel in Western designs). TMI showed how well that design could withstand both an incident and poor handling of that incident.
So tiresome... (Score:4, Insightful)
Of course the SAME thing couldn't happen. But other things could/will/do. Anyone who is an engineer knows that, as there simply are no perfect fail-safe systems.
Here in germany people were also priding themselves about their fail-safe reactors, especiually compared to Chernobyl. But then along came 9/11, and they wondered what would happen if a Jumbo Jet would crash on the nuclear power plant. No, the shielding wouldn't hold - the best idea they come up with now is to use fog bombs to make the plant invisible. Like that's going to make a difference with GPRS available.
You know, the nature of such catstrophies is that they come in a way nobody has thought of before. Of course Chernobyl has been analyzed over and over, and people won't make the SAME mistakes. But you bet they'll make OTHER mistakes. To deny that is just being in denial.
Re:So tiresome... (Score:4, Insightful)
(http://www.mikeash.com/ | Last Journal: Wednesday August 11 2004, @12:57AM)
After 9/11 there were concerns about all kinds of things. There were concerns about arab-looking people having graduation parties on their lawns. Post-9/11 concerns have remarkably little to do with the real world.
But maybe they only thought of smaller aircrafts. Steel-inforced concrete maybe sounds good from the point of view of human being, consisting largely out of soft material like water. Jumbo Jets might be less impressed.
This isn't theoretical, it's been tested. Not with a jumbo jet, but with a rocket-propelled F-4 Phantom. It's smaller than a large airliner, but it has larger engines, and it's the engines that have real penetrating power. Don't make the mistake of comparing with the WTC; those buildings were mostly open space and were not designed to take any kind of impact.
And what about those new rockets the US developed to penetrate bunkers 12m below rock?
What about them? There's no way a terrorist would get ahold of one of those. I'm not saying there's no way to breach a reactor's containment. However, with most methods of doing so, whatever breaches the containment is likely to be as dangerous to the surrounding countryside as the containment breach itself.
interesting point, although surely a power plant contains more energy than a PC, so it seems less obvious to me why the explosion couldn't be big enough to blow up my house. So how is it supposed to work? Is there some kind of feedback loop to decrease the activity the hotter it gets (or whatever, I am no nuclear scientist)? Does that loop work without extra controlers, which might have been destroyed in the case of an accident?
Yes, it's possible to make a reactor which reacts less as it gets warmer, without any systems at all. Building a reactor isn't a matter of just piling enriched uranium together until you have enough of it in one place. (You can, but it's really inefficient and nobody actually does.) Instead, you have a very complex system involving enriched uranium, moderators, neutron reflectors, etc. which all have to be in exactly the right position for anything to happen. When stuff heats up, it expands, and it's possible to make it so that this expansion makes the reactor less reactive. Even ignoring that, once the reactor heats up to a certain point, things will start to bend and break, which will knock everything completely out of position and the reaction will stop right away. The China Syndrome (a core melting and sinking to the center of the earth because it keeps itself out) is basically impossible.
Chernobyl was also like this, in fact it's hard to make a reactor that isn't. The giant mistakes in Chernobyl was that it didn't have a containment structure, and it used graphite as the moderator. Graphite is carbon, and carbon burns really nicely. What happened was that the reactor core heated up extremely and set the graphite on fire. That fire threw large pieces of the core into the atmosphere. The way to keep similar accidents from happening is simple: don't put highly-flammable substances in your reactor core! With a sane reactor design, you could even breach the containment dome and nothing really terrible would happen because all of the nasty substances will still stay in one place, absent a large quantity of explosives or flammable substances.
Re:So tiresome... (Score:4, Insightful)
(http://www.mikeash.com/ | Last Journal: Wednesday August 11 2004, @12:57AM)
Fair enough. But I would like to point out that doubting the safety of nuclear power in general because of a single accident, while simultaneously not understanding how nuclear power works from an engineering and physics standpoint, is foolish. Nitrate-based explosives have killed more people than nuclear power and nuclear weapons ever have, but I don't see people subsequently doubting the safety of their nitrate-based fertilizers. What I see is, people are frightened of nuclear power because they don't understand it and they can only imagine the bad, and I don't feel this is justified. Please don't take this as a personal insult, I mean this as something I see in people in general.
Re:IN SOVIET RUSSIA... (Score:5, Insightful)
Exactly. Which is why our next reactors will have only infallible humans operating them.
Oh, wait.... our next reactors will have only infallible computers operating them.
Dang! Wait... our next computers will have only infallible humans programming them.
Wait...
Re:IN SOVIET RUSSIA... (Score:5, Informative)
"The disaster began with a routine operation for maintenance and fuel change that commenced a day before the accident. In addition to these procedures, the technical crew wanted to perform a test of the plant's steam turbines. Their goal was to determine if the turbines would continue to provide power for the plant's safety systems after their steam supply was cut off. While attempting to perform this test, they committed a series of errors that culminated in catastrophe. More than simple blunders, the errors stemmed from a reckless disregard for safety procedures. The errors compounded, and the disaster would likely not have occurred if any one error had been avoided.
The crew began by reducing the reactor's power so they could start their experiment. They also switched off the reactor's emergency core cooling system. This meant that in the event of a malfunction the reactor would become dangerously hot, which is exactly what subsequently happened. At 12:28 A.M. the crew made another serious error by putting the reactor's regulator at much too low a setting for the planned experiment. At this point, the reactor should have been shut down and the experiment abandoned, but the crew feared a reprimand for the incorrect regulator setting, so they decided to bring the reactor back up to power. To do this, they removed most of the graphite rods that moderated the fissioning of nuclear materials in the reactor core. By 1:00 A.M., the power output had reached 200 MW, still too low for the experiment. At this point, they switched on two extra pumps for the circulation of more cooling water in the core. This action made the reactor highly unstable, and water and steam levels began to oscillate uncontrollably. The crew then made another major mistake by blocking the automatic shut-down system. At 1:23, they started their experiment, and a few seconds later they switched off the safety apparatus that would have come into operation as soon as the turbines stopped.
In less than a minute, the crew chief realized that he had a serious problem, and he ordered the graphite rods to be reinserted in the core. The rods did not fall home, probably because the rods or the nuclear fuel had been distorted by the heat. The rods were then disconnected so that they could fall into the core, but by this time the situation was hopeless. The reactor's power surged from 7 percent to several hundred times its normal level. An explosion rocked the core, followed by another one 4 seconds later. These explosions blew the roof off of the reactor and caused the collapse of a refueling crane into the core, destroying what was left of the cooling system. A reaction of the steam with the fuel rods' zirconium cladding caused the formation of hydrogen, which then ignited, setting off 30 separate fires through the plant. The graphite in the core also ignited."
http://www.fofweb.com/Subscription/Sci
Re:IN SOVIET RUSSIA... (Score:5, Informative)
The Chernobyl design had control rods entering the core from top and bottom. This particular design causes the reactor to have, in certain operating regions, a positive temperature coefficient of reactivity (like positive feedback for you non-nukes.) This has the effect of the reactor power level rising in response to a rise in temperature - and in response to the bottom control rods rising into the core.
Western designs are almost all designed to have a negative temperature coefficient of reactivity in operating regions.
What happened was, as the reactor temperature rose, power followed, such that when they finally tried to shutdown the reactor, reactor power level shot way up (basically, the reactor went prompt critical - some experts have said that the reactor went prompt supercritical - I'm not sure myself since I'd have to go back and research the values for beta and beta-bar that Chernobyl was designed to.) As a result, the power level exceeded design values by a couple hundred times, and the resulting step rise in temperature and pressure caused a massive steam void to form in the reactor, which promptly escaped by rupturing the top of the reactor.
Had Chernobyl been built to western designs the disaster wouldn't have happened.
1. Cooling and fuel channels containing thousands of welded joints through which the coolant continually passes vs. a western design consisting of a single pressure vessel that holds the majority of the coolant covering the core with a few loops to circulate water to the steam generators. This makes the design much more prone to a leak in an inaccessible location.
2. Using graphite instead of water. Graphite has its uses - a power reactor is not one of them.
3. A positive temperature coefficient of reactivity. If you do *nothing* else, make sure your design has a negative coefficient in all operating regions.
4. A flimsy steel shed vs. a proper containment. Even when the reactor suffered a steam explosion, a proper containment structure would have caused Chernobyl to be a localized accident resulting in the contamination of the inside of the containment structure, instead of a disaster affecting the entire world.
Re:IN SOVIET RUSSIA... (Score:5, Insightful)
(http://w1xer.de/ | Last Journal: Saturday September 09 2006, @05:55AM)
Yeah, me too. Stupid piss-taking jokes about an event that goes beyond the realm of experience of any one of the lives of a small group of people currently sitting on their ass in a comfy place, reading a website called
Prosperity does not give one the right to degrade another persons experience
And before anyone pulls out the ol' "get over it, its only a joke" excuse, let me just say that jokes have their time and place.
The Chernobyl incident was a completely different time, in a completely different place. If this site was hosted in Russia, and the jokes were about American disasters, how many of you would consider them to be flame-bait, or make a noise about how 'inappropriate' it is?
Ridicule aint no compliment, and it aint no reflection.
That said, I hope that the generations yet to come understand that the generation currently alive are sorry for what they did to the future, with Chernobyl.