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Huge blast at Japan nuclear power plant

So theres this candyass US national secuity guy on CNN, talking about Japans economic troubles and huge debt "second only to Zimbabwe" basically insulting and pouring salt into the wounds of the Japanese during their national crisis this afternoon

I swear, everyone should boyott CNN and Fox News advertisers.
 
So theres this candyass US national secuity guy on CNN, talking about Japans economic troubles and huge debt "second only to Zimbabwe" basically insulting and pouring salt into the wounds of the Japanese during their national crisis this afternoon

I swear, everyone should boyott CNN and Fox News advertisers.

You said he was on CNN, so why the cheap shot at foxnews advertisers? I fail to see the connection.
 
Or, perhaps he is analyzing the difficulty Japan will have in paying for the cleanup... don't know as I haven't seen it (yet)...

You know, if you hate discussion and free media so much, you should learn Chinese and become a Chinese citizen...
 
They are both exactly alike.

Ar Fox they analyzed the possible business profits of bombing Iran, years ago.

Depraved!
 
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Hydrogen is very volatile....and I haven't seen pics of a pressure wave....did I miss a link?

I found the shock wave in many of the videos that are on TV, CNN, and the internet. http://www.youtube.com/watch?v=kjx-JlwYtyE
There seemed to be only one actual video source, so find one that has good resolution. Look closely right at the beginning of the explosion, the first 50 msec or so. It suddenly appears above the very beginning of the explosion and travels upward for less than a tenth of a second. Note that a pressure wave travels at the speed of sound. What it is water vapor that instantly condenses from the air due to pressure, then evaporates instantly what the pressure is removed. In some explosions you can see it due to the increased refraction of denser air, but this I think is condensation. I’m not an expert, just an engineer.
 
Does anyone even know how to design for an 8.9 quake??? The entire island of Honshu moved 2.4 meters for goodness stake. I know Taipei 101 was built for a 7.0 jolt... I would hate to see what would happen were Taipei hit by an 8.9 quake...

Yes.
Some reactor designs don't require continued cooling. They can be shut down essentially instantly and sit benignly in the container. Oh, but they cost more!
Fukushima nuke plant looks to me like it was designed with a single point of failure. They assumed that they would only have short power failures. No power to the plant during a shutdown results in no cooling after the batteries run down. Then they put the support buildings right on shore!
 
Hydrogen is very volatile....and I haven't seen pics of a pressure wave....did I miss a link?

I took another look at the video at http://www.youtube.com/watch?v=kjx-JlwYtyE look starting from second 0:23, when the frame goes to mock telephoto. It is very clear at about second 0:24.
I don’t think a hydrogen explosion is fast enough to do that, it would have to be close to stoichiometric. It might be if oxygen is also generated.
 
I took another look at the video at http://www.youtube.com/watch?v=kjx-JlwYtyE look starting from second 0:23, when the frame goes to mock telephoto. It is very clear at about second 0:24.
I don’t think a hydrogen explosion is fast enough to do that, it would have to be close to stoichiometric. It might be if oxygen is also generated.

are you suggesting a conspiracy?
 
Exept for the fact we are not allowed to build those any more.
 
Did anyone notice the large shock wave, where water is forced out of the air by pressure, that preceded the ‘smoke’ of the explosion? Generally you only see this with a high explosive. I don’t think I’m getting an accurate description from the nukes management.

It was definitely a high explosive in this case a from a huge build up of hydrogen gas being released from the reactor.
 
I took another look at the video at http://www.youtube.com/watch?v=kjx-JlwYtyE look starting from second 0:23, when the frame goes to mock telephoto. It is very clear at about second 0:24.
I don’t think a hydrogen explosion is fast enough to do that, it would have to be close to stoichiometric. It might be if oxygen is also generated.

Some expert on TV said something about a hydrogen-oxygen mixture. I am not sure how the oxygen was being generated.
 
are you suggesting a conspiracy?

Yes, I think there is a possibility that the containment vessel has exploded, it is stout enough to hold high enough pressure to create a shock wave when it explodes. Then all the fuel is sitting exposed and some scattered in the area. The conspiracy is that they haven’t been up front about it.
So what do you think the shock wave is from?
What did you think I thought it was from?
 
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obama's weekly address (what used to be called the radio address), saturday morning---five minutes of rhetoric on women's pay

WEEKLY ADDRESS: Women's History Month Highlights the President's Resolve to Pass the Paycheck Fairness Act | The White House

not one word about japan

nothing about libya, the price of gas...

how outta touch can a prez be

leadership only the lame could believe in

embarrassed yet?

didn't the president just hold a press conference where he answered many questions about his position on the cost of petroleum? what is it that you believe the president should have commented on that he did not
or are you just looking for any excuse, however lame, to bash the president
 
Does anyone even know how to design for an 8.9 quake??? The entire island of Honshu moved 2.4 meters for goodness stake. I know Taipei 101 was built for a 7.0 jolt... I would hate to see what would happen were Taipei hit by an 8.9 quake...

If you want the real answer, you do so by controlling which parts of the building or structure you want to fail. You utilize the properties of the material. Basically, you have certain pieces "under-built" so that when earthquake loads are present they yield. When a piece of steel, for example, is yielding you know that the load is constant. Thus you limit the load in the structure to the load needed to yield these certain pieces. This is speaking from a structural standpoint.

For a system like nuclear power plant you would have multiple redundancies, so if one portion of the plant fails you have something to back it up, and something to back up the backup, etc.
 
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