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Showing posts with label nuclear power. Show all posts
Showing posts with label nuclear power. Show all posts

Monday, March 30, 2015

Watch George Lucas photobomb documentary about nuclear waste!

Look!  A wild George Lucas sighting!

"Nuclear Waste: Fission Products & Transuranics from Thorium & Uranium" is sincerely fascinating in its own right.  A short documentary about the valuable materials often left in used-up fuel rods from nuclear reactors and how they might be extracted.  Very interesting if you're at all into nuclear engineering and chemistry in general.

But let's face it: most people are going to want to see the creator of Star Wars stumbling into view on a Chicago street as research scientist Bruce Hoglund explains pyroprocessing (using molten salt and electrochemistry to pull out the desired substances).

You can choose to watch it all, OR you can fast-forward (I recommend moving it to 13:00 to get the full effect):

Thursday, August 04, 2011

Swedish dude gets arrested for attempting nuclear reactions... in his apartment kitchen!

There's a chap named Richard Handl in southern Sweden who is right curious about things like physics and nuclear chemistry. So he, ummmm... attempted to build a nuclear breeder reactor in his flat's kitchen.

But it can't honestly be said that he had any nefarious motives, because Richard has a blog set up chronicling all the steps that he's taken on his lil' adventure into the world of fissionable atoms. He even documented a nuclear meltdown in his kitchen's oven.

Turns out though that splitting atoms at home is the sort of thing that the local constabulary (not to mention the Swedish Radiation Authority) tends to frown upon. Richard Handl was arrested several days ago. He's since been released from jail but his reactor equipment has been confiscated (and probably buried under several tons of concrete by now), but Handl is determined to continue his research at "the theoretical level".

Maybe Richard should hook up with David Hahn, AKA the infamous "Radioactive Boy Scout". I bet they'd have TONS of stuff to talk shop about! :-P

Tuesday, April 26, 2011

25 years after Chernobyl

It was twenty-five years ago today, on the morning of April 26th 1986, that the Chernobyl disaster - the very worst nuclear accident in history - happened.

The Chernobyl Nuclear Power Plant, located at Pripyat in Ukraine, suffered a severe meltdown in Reactor No. 4 following an attempted experiment. The town of Pripyat was evacuated and thousands of firefighters and other workers died either during the immediate crisis or in the following weeks from radiation poisoning. The reactor ended up entombed within a "sarcophagus" and the entire area rendered a wasteland. It'll take several thousands of more years yet before human resettlement within what has come to be known as the Chernobyl Exclusion Zone will be possible again. The years since have seen some very tragic results, such as birth defects and an increase in cancer rates of those who were most in the path of the radioactive cloud (which wound up being detected all over the world).

One other effect of Chernobyl is that the disaster crippled the finances of what was then the Soviet Union. It is thought that the accident served to accelerate the collapse of that country's economy and led to the end of the Soviet government five years later.

Naturally, you can find out much more about the Chernobyl disaster on Wikipedia. But by far the most intriguing online resource about Chernobyl is the website of Elena Filatova, AKA "Kiddofspeed". A few years ago she rode her motorcycle through the Chernobyl Exclusion Zone and documented her travels, along with several photographs of what the area around Chernobyl looks like today. They might be some of the eeriest photographs you're apt to find on the Internet.

Wednesday, March 16, 2011

One blogger's support for nuclear energy

Like many people, I've been watching the developments in Japan since last week's earthquake (now measured at being 9 or possibly even 9.1 on the Richter scale) with keen interest. Especially with the drama unfolding at the Daiichi nuclear power plant in Fukishima: the one that has had a number of its reactor buildings violently explode (NOT "nuclear explosion" as I heard one CNN reporter claim but rather the result of too much of a build-up of steam).

And like many who are old enough to remember it, I'm led to reflect upon what happened even here in the southeast United States following the Chernobyl disaster twenty-five years ago next month. A week after that catastrophic meltdown there were slightly elevated levels of radiation measured in these parts. There was a sudden rush on potassium iodide tablets (as is happening now). A week and a half after the accident our Boy Scout troop returned to the volunteer fire department nearby after a camporee: we saw a dozen boxes or so of radiation-detecting equipment that had been dropped off. Where were they going to? I still don't know. But I'll never forget the radiation symbol emblazoned on those boxes: the first time that I saw such a thing.

And now, as then, there is a clamor to restrict and to consider even shutting down nuclear power altogether. I've been watching that steadily rise in recent days as I've watched the news or went looking for it online.

And that's what sent me way back into The Knight Shift archives, to a post that I made almost six years ago.

In July of 2005 I was asked to assist in the production of a training film that would be used at a nuclear power facility. We spent two days onsite at this plant. I can't say much about it or where it was even located (I was given permission to write about it in general terms but for the most part asked to observe a clause of confidentiality, and I am still honoring that).

But let's just say that I had confidence in nuclear power already, and I came away from that experience with far more confidence still.

I cannot recall ever being in a place that had as many safety and security measures as this nuclear plant possessed. We're talking redundant systems out the wazoo: backups on top of backups on top of backups. Every person involved in filming had to be given proper clearance before we even came close to the place. And going through the front door meant first negotiating a labyrinthine path discouraging even a brisk jog.

To be allowed to work in the nuclear energy industry in the United States, you have to undergo two years of exhaustive training and testing. And that's regardless of how much real world experience you might already have. Even if you were in the United States Navy and received the world's finest education in nuclear engineering, you're still looking at a couple of years of schooling before you're allowed to operate equipment in a civilian environment.

And then there is more training. And re-training. And more training yet. For every hour that a person works in an American nuclear facility, he or she receives an hour or more of study, testing and drilling.

There is a reason for what some admitted was the monotonous routine of training. I have a healthy respect for anyone who works in nuclear energy production. Because to be employed in this industry entails one undisputed fact that must be borne at all times: that nuclear power is a grim technology. Quite a useful technology. But still one that demands the uttermost respect and even reverence to wield. There can be no allowances for margin of error. "Cutting corners" is under no circumstance an allowable indulgence.

The men and women that we met at the nuclear plant were easily the most dedicated to their profession that I have seen in any commercial industry. They smiled and laughed with us a few times (because one of the things we had been asked to do was to make this training film a little bit humorous) but make no mistake: they afforded no laxity toward their work. They absolutely realized that their continuing employment wasn't the only thing hinging on their job performance... but also potentially the lives of hundreds or thousands of people well beyond the perimeter of the plant.

Nuclear energy is the most regulated industry in the United States. And the people who work within it are the most dedicated that I have seen in any work environment. Even if I had little faith in the nuclear regulatory system, I would have faith in the people who have chosen to work in nuclear energy.

And then there was the design of the reactors that this plant utilized. Which isn't even "cutting edge" by current standards, but we certainly realized how much thought and consideration had been made in the reactors' construction. Not a drop of water that was heated within the reactor made it to the outside environment. Instead that water was used to super-heat water in another set of pipes, which led to turning the turbines of the generators that produced the electricity. It was an extremely impressive system. And newer reactor designs had been developed which in case of a possible core meltdown, would basically "shut down" the reactor on its own.

It was very, very cool stuff.

The last nuclear energy plant that was built in this country came online in 1996, and it had been under construction for about two decades. With the increasing demand for more and more cheap energy, I don't see how we can afford to frown upon nuclear power. We are sitting on technology that makes nuclear-produced energy safer than has previously been possible... and we should be playing it to the hilt. At the same time however, there must be continuing and rigorous research into alternative means of energy production: from sources such as shale oil, nuclear fusion, and even such radical concepts as harnessing the energy of ocean waves.

"Chris, are you nuts?! What about what just happened in Japan?!" Hey, I agree: nothing is without chance of hazard and nuclear energy is definitely no exception. But from what I've been able to determine, the Daiichi plant was already designed to withstand a severe earthquake. It was built as well as any structure could be made "earthquake-proof". The quake last week was some order of magnitude greater than what the reactor buildings... or any other building for that matter... could tolerate. At the risk of coming across as crass and unsympathetic, what is happening now at the nuclear facility in Fukishima resulted from a fluke of fate and geologic roulette. The possibility of all those things going wrong at the same time were miniscule, to put it mildly. But, go wrong they did. And the engineers and workers at the site are doing everything they can to stem the devastation. No doubt, doing so cognizant of what happened to "the liquidators" and others who fought in vain to bring Chernobyl under control.

We aren't guaranteed total safety by any measure. Not during our life in this world, anyway. But we do what we can, as best we can, to most fully employ the minds, the knowledge, and the wisdom that Providence has bestowed upon us. The alternative is to shun our capability completely, at cost of much of human drive and determination.

I see nuclear fission power as a stepping stone to greater things yet to come. Things that are already being labored upon. In the meantime, we should appreciate that we have such productive and still clean technology... and be thankful that there are those among us who have chosen to pursue its availability.

Monday, June 15, 2009

Radioactive wasp nests plague dump site

Sounds like a Fifties B-movie, or maybe the genesis of a new Spider-Man villain: the country's most contaminated nuclear waste site has provided building material for swarms of wasps building their nests and now the nests themselves are loaded with radioactive isotopes of cesium and cobalt. The Hanford nuclear reservation near Yakima, Washington is currently being cleaned up and workers are having to deal with the nests, which fortunately have already been abandoned by the wasps.

I must admit: 'twould have been a pretty awesome sight to see the skies of Yakima filled with giant glowing wasps :-P

Thursday, July 10, 2008

Iraqi uranium: It was never a threat

Three times today I've been sent or otherwise directed to the following from Investor's Business Daily...
"Hear about the 550 metric tons of yellowcake uranium found in Iraq? No? Why should you? It doesn’t fit the media's neat story line that Saddam Hussein's Iraq posed no nuclear threat when we invaded in 2003. It's a little known fact that, after invading Iraq in 2003, the U.S. found massive amounts of uranium yellowcake, the stuff that can be refined into nuclear weapons or nuclear fuel, at a facility in Tuwaitha outside of Baghdad. In recent weeks, the U.S. secretly has helped the Iraqi government ship it all to Canada, where it was bought by a Canadian company for further processing into nuclear fuel --- thus keeping it from potential use by terrorists or unsavory regimes in the region. This has been virtually ignored by the mainstream media. Yet, as the AP reported, this marks a 'significant step toward closing the books on Saddam's nuclear legacy.' Seems to us this should be big news. After all, much of the early opposition to the war in Iraq involved claims that President Bush 'lied' about weapons of mass destruction and that Saddam posed little if any nuclear threat to the U.S. This more or less proves Saddam in 2003 had a program on hold for building WMD and that he planned to boot it up again soon... Saddam acquired most of his uranium before 1991, but still had it in 2003, when invading U.S. troops found the stuff... That means Saddam held onto it for more than a decade. Why? He hoped to wait out U.N. sanctions on Iraq and start his WMD program anew. This would seem to vindicate Bush's decision to invade."
No, it does not.

This type of uranium was never weapons grade, and was under constant seal and supervision of the International Atomic Energy Agency. For the most part it was leftover from Iraq's foray into nuclear power (which didn't get far) but some of it was also medical waste.

Had Saddam tried to touch the stuff to make a nuclear weapons program out of it, it would have raised red flags bigtime and everyone would have been parked on his front lawn to demand that he stop.

If Saddam seriously wanted a nuclear weapons program, he should have never invaded Kuwait. But that's another story...

Uranium by itself is not fuel for a nuclear warhead. It takes a lot of processing to make it useful as a weapon. And I don't know if Iraq had either the technical means or the expertise to have even begun to attempt such a thing.

I've spoken with a lot of people in the field of nuclear engineering in the past few days and each of them has shared similar sentiments.

I've already shared this with one friend today. As I told her then, I'm not trying to "pick an argument" with anyone. But those are pretty much the facts of the matter. And it's better to educate people about what uranium can and can't do on its own, rather than give in to fear and worse: political convenience.

Monday, October 08, 2007

The "Radioactive Boy Scout" gets 90 days in jail


Oddly enough this is the second story in the past few days involving Boy Scouts and hazardous materials (here's a link to the first). Curious, that...

Anyway, last week David Hahn was sentenced to 90 days in jail for stealing smoke detectors from an apartment complex. After being caught taking one, police found 15 other smoke detectors in his apartment.

Years ago David Hahn achieved quite a bit of notoriety as "the Radioactive Boy Scout". It was as a 15-year old kid in Michigan working on achieving his Eagle Scout that Hahn, having already earned the Atomic Energy merit badge, set out to build a full-blown nuclear breeder reactor (a reactor that not only generates energy but creates new fuel) in his parents' shed. The entire weird story was later turned into a book. When Hahn was 17 the authorities finally caught wind of what he was doing. By that time the shed now had a thousand times more radiation than normal background levels. The shed and all of Hahn's apparatus were later buried in a low-level landfill in Nevada.

By the way, Hahn found a lot of the material for his original reactor by cannibalizing smoke detectors for the radioactive isotope of americium that most detectors contain. So was Hahn trying to build another reactor, this time in his apartment's living room?