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Old 12th Aug 2017, 23:22   #1621 (permalink)
 
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This guy 'gets' it

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Old 13th Aug 2017, 00:39   #1622 (permalink)
 
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"Btw, where in the Kerry report does it say the US bought/sold with drugs? Says we spent a small sum to dealers to facilitate humanitarian efforts. "

Your faith in the US Government is remarkable. Despite all of the confirmed illegal activities the US were involved in regarding various conflicts in Central America, particularly the one in Nicuragua, you still believe your esteemded leaders when they tell you a financial transaction with known drug dealers was for . . . . . . humanitarian reasons.

I have a bridge to sell you.
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Old 13th Aug 2017, 01:06   #1623 (permalink)
 
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You make an accusation then present the Kerry study to back your claim up, problem being said report doesn't back your claim. Kerry would have loved to hammer a Republican administration with as much as possible, yet the facts didn't allow that. The same lack of facts can be overcome by paranoid beliefs however.
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Old 13th Aug 2017, 01:42   #1624 (permalink)
 
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Now Trump has threatened Venezuela its pretty obvious he is carrying on with the traditional aggressive US foreign policy's. if he thinks china won't react if a small amount of fall out touches their shores then he has a bigly problem than he could of dreamed of.
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Old 13th Aug 2017, 04:46   #1625 (permalink)
 
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The US doesn't need to use nuclear arms to take down the NK military so you can ease up on the fallout hysteria. Any fallout will be from NK weapons employment.
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Old 13th Aug 2017, 05:36   #1626 (permalink)
 
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So a couple of cruise missiles lobbed at NK causing a nuclear explosion which causes fall out to touch china. and you think Chinese would not react
Wake up
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Old 13th Aug 2017, 05:45   #1627 (permalink)
 
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Come in off the ledge Ethel. At worst it becomes a dirty bomb with the effects localized.

And, no China won't react. They've already said they'd stay neutral if NK kicks off the festivities, meaning they've assessed their exposure no matter who or how it gets there that they'll be ok.
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Old 13th Aug 2017, 09:10   #1628 (permalink)
 
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Quote:
Originally Posted by Ethel the Aardvark View Post
So a couple of cruise missiles lobbed at NK causing a nuclear explosion which causes fall out to touch china. and you think Chinese would not react
Wake up
That can't happen. Have a look at how a nuclear device actually works, take note of the technical challenges required to ensure that the fissile initiator has to compress the sub-critical mass material into a sphere with µs timing.

The timing and compression challenge is the principal thing that keeps non-nuclear states non-nuclear. It is technically difficult to force the sub-critical mass fissile material together with a great deal of force and in a very short space of time. Right now there is a fair bit of uncertainty as to how advanced the NK nuclear weapons programme is. As far as we can tell from publicly available information, at best they have a boosted fission weapon, rather than a fusion weapon, but in all probability their best working weapon may well be just a relatively low yield fission one, if only because their test programme explosions don't seem to indicate that they don't yet have the technical capability to reliably detonate a fusion device.

In order to detonate a fusion weapon, you need small fission core to generate the conditions for fusion, so you still have to overcome that problem that the Manhattan Project had to, but in a very much smaller volume and mass. Arguably the Manhattan Project failed, technically, as only a small part of the fuel actually reacted; a lot of it was scattered around as fallout. Those weapons were also massive, with respect to their yield, and could only be used because the US had effective control of the high altitude airspace over the targets. NK is trying to make a very small nuclear warhead by comparison.

Look at the size of the Hwasong-14 (there are lots of photos around), then look at what needs to go in there to produce an effective nuclear warhead and you can get some idea of the challenges they face.
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Old 13th Aug 2017, 13:53   #1629 (permalink)
 
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Satellite images 'show North Korea is preparing for a submarine missile launch' | Metro News
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Old 13th Aug 2017, 13:58   #1630 (permalink)
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Interesting article. Especially this bit :

Quote:
The Pentagon has said that the United States and North Korea would proceed as planned with a joint military exercise despite the risk it will further antagonise the situation
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Old 13th Aug 2017, 14:00   #1631 (permalink)
 
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Good reminder VP. Although said somewhat in jest, there is a lot of truth in the wry comment that today it is an engineering problem and not a phyics problem per se that keeps these countries from having deliverable, miniaturized, and reliable weapons of this grade.
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Old 13th Aug 2017, 14:02   #1632 (permalink)
 
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Thats a relief.
So a 100% guarantee that there will be no atmosphere exposure to any radio active substances after a missile attack.
I love your confidence.
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Old 13th Aug 2017, 14:21   #1633 (permalink)
 
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United States and North Korean joint military exercises are going to be very much a live firing scenario.
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Old 13th Aug 2017, 14:22   #1634 (permalink)
 
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Quote:
Originally Posted by Ethel the Aardvark View Post
Thats a relief.
So a 100% guarantee that there will be no atmosphere exposure to any radio active substances after a missile attack.
I love your confidence.
Pretty much, yes. Even the accidents where nuclear weapons have been dropped from aircraft in error, or where aircraft carrying them have crashed, have only ever resulted in some of the conventional explosive detonating.

The key is in the inherent design of a nuclear weapon, which has to have a massive tamper around the pit, in order to concentrate the pressure on the fissile material and hold it together for a µs or so in order for as much as possible of it to react, and more importantly, create a sufficiently powerful radiation flux internally to compress and heat the fusion material. The detonation of the conventional explosive layers surrounding the tamper, that are designed to cause the initial implosion that compresses the tamper into the pit, have to be extremely accurately timed in order to work - they are, in effect, very special shaped charges. If these explosives are detonated other than by the very accurate detonators, say a sympathetic detonation caused by an external event, then the timing will be way off and it's unlikely that there would be any compression of the tamper, just because the focus effect relies very much on accurate detonation.

There are some rough diagrams of how nuclear devices work around on the web, some are pretty close to reality, some aren't, but the basic technology hasn't changed since the late 1950's, all that's happened is that the engineering has enabled smaller and more reliable devices to be made. Worth a look, just to get an idea of the way these things work. Most of the general principles, like the Teller-Ulam design from the early 1950's (which is still used) are reasonably well documented in the public domain.
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Old 13th Aug 2017, 14:36   #1635 (permalink)
 
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Quote:
United States and North Korean joint military exercises are going to be very much a live firing scenario.
Yeah, that one seems to have pretty much gone over everybody's head. Journalism at its bestest!
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Old 13th Aug 2017, 14:54   #1636 (permalink)
 
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It's probably a mock-up but that is what they look like.
Attached Images
File Type: png Kim's bomb.png (26.2 KB, 216 views)
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Old 13th Aug 2017, 15:13   #1637 (permalink)
 
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This diagram gives a very rough idea of what a relatively recent implementation of a Teller-Ulam design may look like, although, for obvious reasons, it's probably not accurate:



The key thing here is the location of the fissile material (the Pu-239 and U-235) and the design of the of the relatively thick non-fissile U-238 case. U-238 is dense, and provides a high mass case around the fissile material and the conventional explosive lens. The U-238 is fissionable, and contributes significantly to the yield, even though it's not particularly radioactive. The U-238 is not fissile, and is more commonly referred to as depleted uranium, as it is the by-product after the fissile U-235 has been processed out for use in the pit and the spark plug. In the context of this forum, the most likely place we'll see the stuff is as counterweights in aircraft. Competitive sailors may have encountered to stuff in racing yacht keels.
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Old 13th Aug 2017, 21:09   #1638 (permalink)
 
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“This guy gets it”

Interesting presentation about game theory, another below by Adam Curtiss:

https://youtu.be/y97Ywl7RtUw

“Satellite images ‘show North Korea is preparing for a submarine missile launch”

Bought to you by the same people that faked sat pics to scare the Saudi’s into supporting GW1. Its in a sat pic, it must be true.

And still the world waits to see what the leader of the “free” world will do to resolve this nuclear crisis less than 6 months after he demonstrated a total lack of understanding of what the nuclear triad is!
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Old 14th Aug 2017, 03:34   #1639 (permalink)
 
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Be too much to ask for proof?
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Old 14th Aug 2017, 04:25   #1640 (permalink)
 
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No, I am not.

Are you going to spend the time proving to me that it didnt occur?

BTW, I am interested to know what proof you would accept on any historical issue?
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