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Comment Re:Why do you need to know the state? (Score 1) 238

My point is that particles behave differently when their state is indeterminate. If this were not true, how would we even know that states can be indeterminate? Could such a crazy idea have been proved, if indeterminate states are observationally indistinguishable from determinate states?

You seem to be suggesting the local particle will pretend to be indeterminate state, even after its state has in fact been determined. I guess that is an experimental question.

Comment Re:Why do you need to know the state? (Score 1) 238

But what if you detect wavefunction collapse? The wavefunction is collapsed by the distant measurement, which forces the local particle to choose its state. And as I understand it, wavefunction collapse *can* be detected, because under some circumstances a wavefunction can interfere with itself, but not if it has been collapsed. For example, with the two-slit experiment, a single photon can interfere with itself and create an interference pattern, but not if it has been forced to choose a slit.

Ergo, the two possible states of the world are: (1) FTL communication is possible; or (2) It is not possible to determine whether a particle has indeterminate state.

Comment Re:ARCTIC vs ANTARCTIC - the map is startling (Score 3, Interesting) 319

The map of antarctic ice-thickness changes shows virtually the entire continent in red to yellow (thickening ice) and two tiny areas in blue-to-green (thinning ice.) Thinning ice accounts for something like one percent of the continent, and 99% of the published discussion. For decades, most peer-reviewed articles on WAIS thinning have studiously avoided any mention of the rest of the continent. The same is true for Greenland, where for decades most of the published literature has focused on the margins and pretended the interior does not exist.

Counterexamples exist, of course, but I noticed these omissions as early as the mid-eighties.

Even if you attribute the publication bias to poor data, it would have been more honest to mention that the areas under study accounted for only a tiny percentage of the land area and ice volume.

Comment What he actually said... (Score 3, Insightful) 454

I did RTFA, and he makes two real claims. His primary claim is that the iron dome system must be failing, because when the interceptor approaches the target from anything other than head on, the interceptor will fire its warhead at the wrong time. He implies that this failure is an inevitable consequence of geometry, but I don't see it. If you actually look at the diagrams, the interceptor has just a good a shot when approaching (say) from behind as from in front. In fact the odds look better to me from behind or the side, as the crossing speeds are lower and the shrapnel fan might actually run down the length of the target. The interceptor just needs to fire its warhead at a different moment. But his diagrams all show the warhead firing at the wrong time, for reasons that are not made clear.

Is the iron dome system smart enough to account for basic geometry? I would think so, since the problem is pretty simple, and the approach angle will be known by the radar even before launch. But I don't really know. And I don't think he does either.

His second claim might be more credible. He says that in hundreds of pictures of intercepts, only one clearly shows detonation of the incoming rocket. I don't know if this is true, and I don't trust his claim. But if it is true then it cries out for explanation.

Comment Re:Reminds me of Control Theory (Score 0) 401

The stabilizer is self interest, because people don't like to be poor. And control is indeed the key. Pass enough laws to prevent people from adapting to change, and collapse is inevitable. As inevitable as the statists who caused the collapse blaming it on the one percent who made civilization possible in the first place.

Comment Re:If I recall..... (Score 2) 333

I always ask this, and never get an answer. A quantum wavefunction can interfere with itself (E.g., you get interference fringes if you do the 2-slit experiment with a single photon.) But if the wavefunction is collapsed (E.g., by measuring which slit the photon goes through) then it cannot self-interfere. (The fringes disappear.)

Now the punchline. The whole point of quantum teleportation is that collapsing a particle's wavefunction will also collapse the wavefunction of a remote, entangled particle. Will that destroy the remote particle's self-interference fringes? If so, then we have our ansible.

Comment Can we detect wavefunction collapse, or not? (Score 1) 160

Detecting wavefunction collapse is trivial, just look for interference between the possible states, ala the two-slit experiment. HOWEVER, if the collapse of an entangled wavefunction can be detected, than FTL information transmission is possible, because collapsing one half of an entangled pair will instantly collapse the other half, causing the interference pattern (or whatever) to disappear. So what am I missing?

Comment Re:You are clueless if you claim such a thing (Score 4, Insightful) 1131

The IRA were, and are, Marxists in all but name. If you doubt, read the Sinn Fein manifesto, available online now. What, you never heard that on the news? How could that be? The rule, "All terrorists are collectivists or Muslims" is only rarely violated.

Comment Re:How are we supposed to understand this? (Score 1) 1671

Ditto. They looked like guns to me, and the soldier's call of an RPG seemed reasonable. Also noteworthy: Watching a wounded guy crawl around, and not firing because he had not picked up a weapon. As for killing the rescuers, I agree that is debatable, but the purpose of war is to kill the enemy. I saw no kids.

Breaking the Squid Barrier 126

An anonymous reader writes "Dr. Steve O'Shea of Auckland, New Zealand is attempting to break the record for keeping deep sea squid alive in captivity, with the goal of being able to raise a giant squid one day. Right now, he's raising the broad squid, sepioteuthis australis, from egg masses found in seaweed. This is a lot harder than it sounds, because the squid he's studying grow rapidly and eat only live prey, making it hard for them to keep the squid from becoming prey themselves. If his research works out, you might one day be able to visit an aquarium and see giant squid."

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