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Japan Pictures Likely Show Melted Fukushima Fuel for First Time

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11–20 of 128 posts

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#11
post #5

I was going to say, I thought computers can't normally operate in those conditions > Because of the high radioactivity levels inside the reactor, only specially designed robots can probe the unit There must be some sort of really powerful shielding on the robot. Cool stuff.

We've seen pictures of the melted core of Chernobyl too (the "Elephant's Foot") havent' we?

How do you think those photos were taken?

https://3.bp.blogspot.com/-KxRuWaD0sXg/U7MHoNyBuiI/AAAAAAAAJ...

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#12
post #5

I was going to say, I thought computers can't normally operate in those conditions > Because of the high radioactivity levels inside the reactor, only specially designed robots can probe the unit There must be some sort of really powerful shielding on the robot. Cool stuff.

We've seen pictures of the melted core of Chernobyl too (the "Elephant's Foot") havent' we?

Humans, not robots, take the shot

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#13

I was going to say, I thought computers can't normally operate in those conditions > Because of the high radioactivity levels inside the reactor, only specially designed robots can probe the unit There must be some sort of really powerful shielding on the robot. Cool stuff.

Radioactive shielding is just a bunch of heavy metal. The robot probably has terrible maneuverability and even worse battery life :p

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#14
post #7

Earlier quoted context omitted.

The only real difference from your version to the titles is -ese on Japan. 'Likely' is a fine substitute for 'may show', from my perspective.

The OP may have started to read it as "Japan (noun) pictures (verb) likely (adjective)...". Changing "Japan" to "Japanese" and "likely" to "may" eliminates that as a possible interpretation.

That's exactly what I did. I think my brain even went on to read "show" as a noun, and "may" would have prevented that. Title Case Didn't Help Much Either.

Besides that, I'm not sure either "Japan" or "Japanese" is really necessary, because "Fukushima" makes it clear that the pictures are from Japan.

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#15
post #11
post #5

Earlier quoted context omitted.

We've seen pictures of the melted core of Chernobyl too (the "Elephant's Foot") havent' we?

How do you think those photos were taken? https://3.bp.blogspot.com/-KxRuWaD0sXg/U7MHoNyBuiI/AAAAAAAAJ...

oops - I was sure they sent a robot to do that. Never mind.

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#16
post #6

I still don't see why they are spending years trying to make rad hard robots. A long steel tube with fiber optics to pipe in light, mirrors and optics to transmit an image down the tube would be infinitely easier. They'd need to burn a few holes, but none of the reactor vessels are intact so that wouldn't allow additional radioactive material to escape. I'm surprised the Japanese decision to dump the all the tritium…

Complex problems often require complex solutions. I imagine that your suggestion works for some situations but not all. The cynical side of me thinks that one of the few benefits of the disaster will be new technology and robots that will help prevent future disasters. I imagine there's a very high priced market for these kinds of hardened robots.

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#17
post #6

I still don't see why they are spending years trying to make rad hard robots. A long steel tube with fiber optics to pipe in light, mirrors and optics to transmit an image down the tube would be infinitely easier. They'd need to burn a few holes, but none of the reactor vessels are intact so that wouldn't allow additional radioactive material to escape. I'm surprised the Japanese decision to dump the all the tritium…

>I'm surprised the Japanese decision to dump the all the tritium contaminated water into the ocean hasn't made more news.

Why does that surprise you?

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#18
post #9

As I feel incompetent to comment on the article's content, I'll be glad to start a thread on the linguistics of that car crash of a headline. It took me three or four fresh starts to parse it correctly. The linguistic term for this is garden path sentence[1][2] and it's such a good one that it makes me wonder if it's deliberate. Even just some small adjustments would make it more readable: "Japanese pictures may show…

Melted Fukushima fuel photographed for the first time. First photos of melted Fukushima fuel. If you take away the tentativeness of "may", "likely", etc., you can make the sentence much easier to read. I wouldn't mind a slight lack of qualifiers as long as the whole thing is not too linkbaity and the content puts the qualifiers back where they belong.

Good point, those are definitely easier to read, although in this age of clickbait I give them credit for admitting a degree of uncertainty right in the headline.

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#19
post #6

I still don't see why they are spending years trying to make rad hard robots. A long steel tube with fiber optics to pipe in light, mirrors and optics to transmit an image down the tube would be infinitely easier. They'd need to burn a few holes, but none of the reactor vessels are intact so that wouldn't allow additional radioactive material to escape. I'm surprised the Japanese decision to dump the all the tritium…

>A long steel tube with fiber optics to pipe in light, mirrors and optics to transmit an image down the tube would be infinitely easier.

That seems likely to degrade the fiber, or the signal and I'm having trouble thinking of any tested fiber in the range of a molten reactor core. The flux is really crazy near that thing, and not just photons, but relativistic electrons and some very angry helium nuclei.

Re: Japan Pictures Likely Show Melted Fukushima Fuel for First Time

#20
post #13

I was going to say, I thought computers can't normally operate in those conditions > Because of the high radioactivity levels inside the reactor, only specially designed robots can probe the unit There must be some sort of really powerful shielding on the robot. Cool stuff.

Radioactive shielding is just a bunch of heavy metal. The robot probably has terrible maneuverability and even worse battery life :p

The problem with the "heavy metal" approach is also secondary radiation. Sure, you've protected your package (robot, whatever) from the beta and alpha, but now your metal is re-radiating in the gamma spectrum and practically cooking your goose.

Shielding is hard.

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