It would be more likely to be the exit point of a miniature black hole. The entry point would likely be a very small hole.*
I call these exit wounds; the physics is that the exiting hypervelocity thing sets up a shock wave moving matter out of the way, and it's the shock wave excavates the material in the hole. (Even a black hole does this; a decent sized one (say 10^10 kg) is very small, so not much matter would be eaten during a transit of the Earth. It does, however, pull matter towards it and its wake sets up an explosive shock wave that fractures and evacuates material.)
* A black hole the mass of the Sun would have a radius of ~ 3 km, so one the mass of the Earth is a few mm, and a likely primordial black hole, with a mass of maybe 10^10 kg, would have a radius of 10^-17 m, or well below the size of an atomic nucleus. Such a small black hole would not "eat" much in its passage through the Earth, which might take 20 - 40 seconds or so, because not much would actually hit it. It's gravitational wake, however, would be another matter. Such a primordial black hole would leave a tiny entrance wound, but a large exit wound.
Patomskiy Crater is in solid rock, this new one is in soft sediment. Solid rock requires energy to fracture, and it is thus less likely to be removed from an excavation. By the way, these sorts of holes (assuming that they are explosive in origin) are similar to "bench-blasting" in explosives work; there is a huge literature on this.
First, if this is 80 meters in diameter, or 40 meters in radius, and say at a minimum 40 meters deep, that’ s not quite 10^9 kg of soil moved up order 40 meters, requiring (very roughly) the equivalent of 60 tons of TNT, at a minimum, and thus an equivalent magnitude of ~ 3.2 (again, roughly). Such an explosion should be detectable on seismological networks, such as the ones looking for nuclear testing.
Second, there is another mystery crater in Siberia - the Patomskiy crater. This one is in rock, not sediment, is about 160 meters in diameter, and is maybe 300 years old, but I have to wonder if they have a similar cause.
Third, I am interested in quark nuggets and other types of condensed matter, such as Q-Balls, generically called Compact UltraDense Objects (CUDOs) by Jan Rafelski of U. Arizona. If these things exist in the appropriate masses, they could cause holes such as this and the Patomskiy crater. Even better, if this were to be caused by transiting CUDO, it would cause a "linear earthquake, which should be easily recognizable in the seismic record.
All I can say is that if we actually had decent anti-trust enforcement (YAGTDRR - Yet Another Good Thing Destroyed by Ronald Reagan), these mergers wouldn't even be an issue to begin with. Since they are, thank God this one seems not be going forward.
One burst from one location in the sky, then weeks or months later, another burst from another location in the sky. I don't think a pattern recognition algorithm is going to help you much.
Actually, as someone who is a pretty conservative driver, I welcomed the option to let worse drivers subsidize my premiums in exchange for them tracking my driving for a while. I could care less that they know (for example) that I always signal turns and lane changes and don't aggressively accelerate or stop. I could also care less that people who can't demonstrate the same behavior are seen as a higher risk and charged a higher premium.
...except you, of course, since you're on my \. frinds list and all...
Well, if you ever get divorced, better make sure you have never driven anywhere your ex-wife's attorney could make hay knowing about.
I predict that if some fine day a Federal prosecutor (independent or otherwise) decides for some bogus reason that they want to hassle you, you will take it very seriously indeed.
I agree Whitewater was, like Benghazi, a fake scandal, but fake scandals can hurt real people.
What in the hell are the US police doing arresting anyone in a foreign country? Is the Maldives part of the empire now?
And, yes, the Russians are totally correct in calling this kidnapping. Look for some poor American tourist or businessman to be nabbed in a tit-for-tat.
It has been a number of years since I was asked to turn on a device, even when I go through enhanced security. So, unless this is accompanied by a "we are now pushing to turn on all electronics" it is not exactly a prohibition.
That is one advantage of using the SLS for the Europa-clipper - it would be a Hohmann trajectory, with no subsequent Earth-flybys to get people anxious.
Viking, Voyager, Galileo, Cassini - these were the so called "Flagship" missions - big, envelope-pushing missions intended to substantially advance our knowledge of the solar system. (MSL is really another, but Mars is special for NASA and so they don't call it that.) They have somewhat fallen out of favor, as they are very expensive and prone to delays and overruns, but it is hard to see how there can be substantial advances, particularly in the outer solar system, without them.
The next mission of this class will, Congress willing, be the Europa-clipper, which is slowly getting to the AO stage. I can hardly wait.
Having read the article, I think that "With a Bang" sort of waffled on this. It is hard to see how SuperMassive Black holes (SMB) form in the time available for them to form. (There is a large literature on this, but basically there are problems of the seeds - are the seeds Pop III stars, or something more exotic - and time - how can the mass move around enough to form SMB by z ~ 6?).
I don't really feel you can safely answer the "which came first" question until you know how the SMB actually formed.
Of course, as the "With a Bang" article points out, if you are willing to wait and not have everything be simultaneous, you can have both large scale structure formation and small scale structure formation going on simultaneously, with the small scale going to completion earlier, and both together yielding what we see today.
Why is the answer always assumed to be binary? Both processes could have been occuring simultaneously.
I am sure both were occuring simultaneously, the question is, which dominates? The two sets of processes have different time constants (growth rates), arising from different physics. For both to be more-or-less equally powerful requires these time constants to be more-or-less matched, and that seems improbable and fails "Occam's razor" type "tests."
So, could be, but don't expect that idea to gain traction, at least without a good theory as to why things should be that way.
we first expected and then found supermassive black holes at the centers of practically all large galaxies.
"expected" is sure not how I remember it, and in fact I think this has the historical record backwards. Quasars were definitely a surprise, and the Super Massive Black hole (SMB) interpretation of quasars took a while (a decade at least) to catch on, and the consensus that most galaxies have a central SMB came after that, after some local galaxies (such as our own) showed signs of having a SMB too. Before all of this most astronomers weren't interested in black holes and even the small number of General Relativity types (such as Zeldovich) who were, and who were looking them, were looking for stellar mass sized black holes, not the SMB variety.
All in all, I think it would be more accurate to say that the SMB-galaxy connection was forced upon astronomers by the data, rather than that they expected it.
A bug in the mosaic screensaver caused downloaded images to remain uncached.
I have to wonder about that.
The OP did 79.61 GB in one day, which works out to 7 Mbps over 24 hours. That seems like a lot of images (several a second?) for a screen-saver to download.
A better analog might be, suppose someone said in testimony
I buried all my documents in a box out in the desert.
Could they then be compelled to provide the location if police searches turned up a blank? Seems like they could.
Of course, if you are willing to go to jail and wait it out, the "compulsion" is never forever, Seems like that might depend on just what's in those documents.
You do not have to participate in the opening of your safe. A locksmith or torch can do that without you.
Your encrypted documents, on the other hand, may not be crackable without your help.
Note that courts seem to feel that Iris-scans, fingerprints, etc., are not "testimony," and so are not protected. That's something to keep in mind if you wanted to purely rely on biometric keys for your encryption.
Slashdot Mirror
It would be more likely to be the exit point of a miniature black hole. The entry point would likely be a very small hole.*
I call these exit wounds; the physics is that the exiting hypervelocity thing sets up a shock wave moving matter out of the way, and it's the shock wave excavates the material in the hole. (Even a black hole does this; a decent sized one (say 10^10 kg) is very small, so not much matter would be eaten during a transit of the Earth. It does, however, pull matter towards it and its wake sets up an explosive shock wave that fractures and evacuates material.)
* A black hole the mass of the Sun would have a radius of ~ 3 km, so one the mass of the Earth is a few mm, and a likely primordial black hole, with a mass of maybe 10^10 kg, would have a radius of 10^-17 m, or well below the size of an atomic nucleus. Such a small black hole would not "eat" much in its passage through the Earth, which might take 20 - 40 seconds or so, because not much would actually hit it. It's gravitational wake, however, would be another matter. Such a primordial black hole would leave a tiny entrance wound, but a large exit wound.
Patomskiy Crater is in solid rock, this new one is in soft sediment. Solid rock requires energy to fracture, and it is thus less likely to be removed from an excavation. By the way, these sorts of holes (assuming that they are explosive in origin) are similar to "bench-blasting" in explosives work; there is a huge literature on this.
First, if this is 80 meters in diameter, or 40 meters in radius, and say at a minimum 40 meters deep, that’ s not quite 10^9 kg of soil moved up order 40 meters, requiring (very roughly) the equivalent of 60 tons of TNT, at a minimum, and thus an equivalent magnitude of ~ 3.2 (again, roughly). Such an explosion should be detectable on seismological networks, such as the ones looking for nuclear testing.
Second, there is another mystery crater in Siberia - the Patomskiy crater. This one is in rock, not sediment, is about 160 meters in diameter, and is maybe 300 years old, but I have to wonder if they have a similar cause.
Third, I am interested in quark nuggets and other types of condensed matter, such as Q-Balls, generically called Compact UltraDense Objects (CUDOs) by Jan Rafelski of U. Arizona. If these things exist in the appropriate masses, they could cause holes such as this and the Patomskiy crater. Even better, if this were to be caused by transiting CUDO, it would cause a "linear earthquake, which should be easily recognizable in the seismic record.
All I can say is that if we actually had decent anti-trust enforcement (YAGTDRR - Yet Another Good Thing Destroyed by Ronald Reagan), these mergers wouldn't even be an issue to begin with. Since they are, thank God this one seems not be going forward.
One burst from one location in the sky, then weeks or months later, another burst from another location in the sky. I don't think a pattern recognition algorithm is going to help you much.
Actually, as someone who is a pretty conservative driver, I welcomed the option to let worse drivers subsidize my premiums in exchange for them tracking my driving for a while. I could care less that they know (for example) that I always signal turns and lane changes and don't aggressively accelerate or stop. I could also care less that people who can't demonstrate the same behavior are seen as a higher risk and charged a higher premium.
...except you, of course, since you're on my \. frinds list and all...
Well, if you ever get divorced, better make sure you have never driven anywhere your ex-wife's attorney could make hay knowing about.
I haven't bought any of this, don't know anyone (personally) who has bought any of this, and don't know why anyone would buy any of this.
I guess, however, some people may have more money than brains. I wish they would put it into Kickstarter, Indiegogo, Rockethub, instead of this crap.
Sure, he did all kinds of dirt-gathering in order to try and impeach Clinton, but no one took him seriously.
Susan McDougal called. She wants to have a word with you.
I predict that if some fine day a Federal prosecutor (independent or otherwise) decides for some bogus reason that they want to hassle you, you will take it very seriously indeed.
I agree Whitewater was, like Benghazi, a fake scandal, but fake scandals can hurt real people.
In geopolitics, taking powers you do not actually have always leads to a reaction. Wait for it.
What in the hell are the US police doing arresting anyone in a foreign country? Is the Maldives part of the empire now?
And, yes, the Russians are totally correct in calling this kidnapping. Look for some poor American tourist or businessman to be nabbed in a tit-for-tat.
It has been a number of years since I was asked to turn on a device, even when I go through enhanced security. So, unless this is accompanied by a "we are now pushing to turn on all electronics" it is not exactly a prohibition.
Then, you plug it in. They do have jacks at airports...
That is one advantage of using the SLS for the Europa-clipper - it would be a Hohmann trajectory, with no subsequent Earth-flybys to get people anxious.
Viking, Voyager, Galileo, Cassini - these were the so called "Flagship" missions - big, envelope-pushing missions intended to substantially advance our knowledge of the solar system. (MSL is really another, but Mars is special for NASA and so they don't call it that.) They have somewhat fallen out of favor, as they are very expensive and prone to delays and overruns, but it is hard to see how there can be substantial advances, particularly in the outer solar system, without them.
The next mission of this class will, Congress willing, be the Europa-clipper, which is slowly getting to the AO stage. I can hardly wait.
What is wrong with these people? Are they unaware that such has been proposed time and again by past luminaries?.
Nothing is wrong with them , as they still get rewarded for making bad predictions.
No-one ever lost money betting against an A.I. prognosticator.
That depends. How often do you get fired?
At a minimum, at least as often as you get fired.
Having read the article, I think that "With a Bang" sort of waffled on this. It is hard to see how SuperMassive Black holes (SMB) form in the time available for them to form. (There is a large literature on this, but basically there are problems of the seeds - are the seeds Pop III stars, or something more exotic - and time - how can the mass move around enough to form SMB by z ~ 6?).
I don't really feel you can safely answer the "which came first" question until you know how the SMB actually formed.
A one hour video lecture, Supermassive Black Holes and the Problem of Galaxy Formation, might be interesting to people interested in these problems, but it deals with the galaxy problem more than the SMB problem.
Of course, as the "With a Bang" article points out, if you are willing to wait and not have everything be simultaneous, you can have both large scale structure formation and small scale structure formation going on simultaneously, with the small scale going to completion earlier, and both together yielding what we see today.
Why is the answer always assumed to be binary? Both processes could have been occuring simultaneously.
I am sure both were occuring simultaneously, the question is, which dominates? The two sets of processes have different time constants (growth rates), arising from different physics. For both to be more-or-less equally powerful requires these time constants to be more-or-less matched, and that seems improbable and fails "Occam's razor" type "tests."
So, could be, but don't expect that idea to gain traction, at least without a good theory as to why things should be that way.
"expected" is sure not how I remember it, and in fact I think this has the historical record backwards. Quasars were definitely a surprise, and the Super Massive Black hole (SMB) interpretation of quasars took a while (a decade at least) to catch on, and the consensus that most galaxies have a central SMB came after that, after some local galaxies (such as our own) showed signs of having a SMB too. Before all of this most astronomers weren't interested in black holes and even the small number of General Relativity types (such as Zeldovich) who were, and who were looking them, were looking for stellar mass sized black holes, not the SMB variety.
All in all, I think it would be more accurate to say that the SMB-galaxy connection was forced upon astronomers by the data, rather than that they expected it.
I have to wonder about that.
The OP did 79.61 GB in one day, which works out to 7 Mbps over 24 hours. That seems like a lot of images (several a second?) for a screen-saver to download.
A better analog might be, suppose someone said in testimony
Could they then be compelled to provide the location if police searches turned up a blank? Seems like they could.
Of course, if you are willing to go to jail and wait it out, the "compulsion" is never forever, Seems like that might depend on just what's in those documents.
You do not have to participate in the opening of your safe. A locksmith or torch can do that without you.
Your encrypted documents, on the other hand, may not be crackable without your help.
Note that courts seem to feel that Iris-scans, fingerprints, etc., are not "testimony," and so are not protected. That's something to keep in mind if you wanted to purely rely on biometric keys for your encryption.
IANAL, and this is not legal advice.