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North Korean ICBM launch detected using GPS

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Re: North Korean ICBM launch detected using GPS

#91
post #36

Quoted post unavailable.

Acquiring and developing nuclear weapons seems to be the most rational thing North Korea has done in a very long time. Neither the Iraq nor Ukraine conflicts would have happened if they were nuclear states. An armed society is a polite society, or so I've been told many, many times.

This has to be the absolute best example of survivor bias!

Re: North Korean ICBM launch detected using GPS

#92
post #4

Earlier quoted context omitted.

If you follow the thread, there’s a link to https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/201... which contains this introduction: ======== It is widely recognized that rocket launches can be an anthropogenic source to trigger traveling ionospheric disturbances (TIDs) by generating acoustic-gravity waves (Afraimovich et al., 2002; Arendt, 1971; Bowling et al., 2013; Calais & Minster, 1996; Chou et al., 201…

What does "gravity waves" mean in this context?

Probably this? https://en.wikipedia.org/wiki/Gravity_wave

Not to be confused with https://en.wikipedia.org/wiki/Gravitational_wave

Re: North Korean ICBM launch detected using GPS

#93
post #69

Earlier quoted context omitted.

We tried detente and appeasement various times and at various stages, it usually doesn't work

What is the end game with North Korea though? It seems the only options are: * It collapses on its own or there's an internal revolution or coup. This would be a mess though because of the whole China, Russia, South Korea claims probably. * It does something drastic and attacks and then gets invaded. That also seems a mess because now it's China, Russia, South Korea, and the U.S. and maybe Japan, depending on who it…

It's complicated because states diplomacy exists in a condition of pure anarchy, but "disarmament in exchange of security guarantees" is another option.

One might draw parallel with Ukraine, which is fair, but turns out it wasn't USA the untrustworthy party to the agreement, and they didn't get a defensive alliance out of it, which showed to be a necessity and raises the bar considerably

Re: North Korean ICBM launch detected using GPS

#94
post #88

Earlier quoted context omitted.

You mentioned on twitter[1] that there are realtime data sources which could be used to do the same kind of visualisation/detection. What would these sources be? 1: https://twitter.com/tylerni7/status/1593466486714421249?s=20...

The main protocol is called NTRIP. Lots of sources make it available (though it might be annoying to stream from ~250 simultaneously, not sure). There's a lot if you search that term though. I think GEONET (the Japanese data source) might have some NTRIP casters. Also some in Korea and elsewhere. Sometimes you have to pay for access though, so I need to look more.

Thank you very much!

Re: North Korean ICBM launch detected using GPS

#95

Earlier quoted context omitted.

They very likely already have that.. they’ve detonated >50kt nukes and have mobile ICBM launchers that have demonstrated rockets with thousands of miles of range. They could almost certainly detonate a nuclear weapon in Korea or Japan. I’d put even odds on a strike on Guam, but probably not quite capable of hitting Western US.

>they’ve detonated >50kt nukes Are you sure? Didn't they also detonate a buncha TNT to make it look like a nuke blast once? (A weird thing to lie about.)

Yes, there’s no doubt. They’ve tested multiple devices, several of them failed but the 2017 one didn’t. We know they bought the designs and materials from Pakistan, we’ve seen enough images of the process and equipment to know they were actively making progress, and we can measure the size of explosions via seismographs. We can measure the craters left behind via satellite images.

The wiki article has a good rundown of the evidence: https://en.m.wikipedia.org/wiki/2017_North_Korean_nuclear_te...

Re: North Korean ICBM launch detected using GPS

#96

What I wonder about is all of the technologies that go into ICBM's with nuclear weapons. My layman's guess is that there is active support and collaboration of the NK nuclear program from outside. North Korea is a headache for the US and other western powers, one more thing to consume policy bandwidth and military preparedness. This would seem to be in the interests of China and Russia, and perhaps others. I don't wo…

Remember that it took about 10 years for North Korea to go from it's first nuclear weapons test (which fizzled) to something that's probably a deliverable nuclear weapon, and they had spent decades before that to get to the first test. Nuclear weapons require great precision but they're not especially complicated devices. Any nation state, even the very poorest, should have no difficulty designing a nuclear weapon. It's the refinement of the design and the acquisition of the materials that is difficult, and even then the challenge is more in doing it clandestinely. Even then, the cost of the manhattan project, which not only developed two different nuclear weapons in 4 years, but also discovered a lot of the basic underlying physics from scratch, all in secret and with 1940s era equipment cost about $23 Billion adjusted for inflation. Similarly, the development contract for first American ICBM cost about $4 Billion in todays dollars. North Korea benefits from decades of scientific and technological advancement since that time, and it doesn't cost much to employ someone when you can throw their family into a camp, but even if we assume that it nevertheless would cost them as much to develop such technologies, over the course of 30 years that still represents a reasonably small fraction of North Korea's GDP. North Korea's long history of failures are pretty clear evidence that they were not given the design and manufacturing capability necessary to produce working nuclear weapons or missile systems. While no doubt there has been communication with other state actors over the decades, the idea that they are receiving active support is not at all supported by evidence, and indeed the embarrassingly long development time implies that either there is a great deal of incompetence in the development effort, active sabotage, or likely both.

Re: North Korean ICBM launch detected using GPS

#97
Fun fact: the arecibo radio telescope was funded to study ionosphere disturbances so the US military could explore the possibility of detecting ICBMs passing through the ionosphere. To my knowledge no such system was actually built but apparently it wasn't as ridiculous a proposal as I thought.

Re: North Korean ICBM launch detected using GPS

#98

Earlier quoted context omitted.

>they’ve detonated >50kt nukes Are you sure? Didn't they also detonate a buncha TNT to make it look like a nuke blast once? (A weird thing to lie about.)

Yes, there’s no doubt. They’ve tested multiple devices, several of them failed but the 2017 one didn’t. We know they bought the designs and materials from Pakistan, we’ve seen enough images of the process and equipment to know they were actively making progress, and we can measure the size of explosions via seismographs. We can measure the craters left behind via satellite images. The wiki article has a good rundown…

Wow they really put EVERYTHING on a wiki now. Thanks!

Re: North Korean ICBM launch detected using GPS

#99

Earlier quoted context omitted.

>well-after-the-fact missile trail detection. Sorry, I missed that bit, I thought this could also be used to detect incoming missiles. I do not want my enemies to be able to detect incoming missiles. Sorry for posting so angrily.

Wild! I don't think I've ever seen someone who thinks restricting tech like this is actually a good idea. I thought that was just like, crazy government people who don't understand technology. I'd hoped we'd moved past printing the entire code of PGP in a hardback book in an OCR font but I guess y'all still out here.

I literally had a bronze bust of JFK on my desk on k street.

I’m not a government type unless I’m calling people my long haired opponent ala Hunter S Thompson running for mayor

Re: North Korean ICBM launch detected using GPS

#100

Earlier quoted context omitted.

>they’ve detonated >50kt nukes Are you sure? Didn't they also detonate a buncha TNT to make it look like a nuke blast once? (A weird thing to lie about.)

> A weird thing to lie about. Having the world believe you have nukes is nearly as valuable as actually having them.

>Having the world believe you have nukes is nearly as valuable as actually having them.

Not if you don’t have even a single aircraft carrier dude.

You’ll just get a lot of innocent people hurt in a rightful and overwhelming second strike.

Edit: hit send early - my bad… this isn’t Reddit :-)

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