But how can they observe a direction unless the same neutrino interacts with more than one detector? Is that the chance encounter they are waiting for? And once the neutrino interacts with the first detector, isn't it changed (I would think destroyed)?
The neutrinos do not interact with the detectors. Instead they react with the hydrogen in the water to produce charged leptons (electrons, muons, or taus depending on the neutrino type) which then produce Cherenkov radiation as they move through the ice and the detectors see that. Since momentum is conserved, the leptons move in approximately the same direction as the neutrino was.
Neutrinos are electrically neutral leptons, and interact very rarely with matter. When they do react with the molecules of water in the ice, they can create charged leptons (electrons, muons, or taus). These charged leptons can, if they are energetic enough, emit Cherenkov radiation. This happens when the charged particle travels through the ice faster than the speed of light in the ice, similar to the bow shock of a boat traveling faster than the waves it crosses. This light can then be detected by photomultiplier tubes within the digital optical modules making up IceCube.
It's a basic premise of the rules of evidence that it's invalidated when a cop commits a crime to collect it, but not if a private citizen does it.
Only if it has been previously established on narrow grounds that what the cop did was unlawful and only if exclusion would serve to deter future violations. In other words, the exceptions have swallowed the rule.
Even worse trend in America is protesting your own rights, like the second amendment. Whats next?
Law enforcement has planned to and gotten caught collecting license plate data at gun shows and nobody cared. If they can do that to citizens exercising their rights than they can do it to everybody.
This. The government is required to have a warrant to track your whereabouts. This is well established through cases such as United States v. Jones 132 S.Ct. 945 (2012) where police tried to surreptitiously attach a GPS tracker to someone's car without a warrant, and Carpenter v. United States 16-402 S.Ct 585 (2017) which established that police require a warrant to obtain cellphone tower records.
United States v. Jones established that it was a violation of the 4th amendment's protection against unreasonable searches to trespass by attaching a GPS tracker to a vehicle without a warrant. It did not cover tracking absent physical intrusion and did not rely on expectation of privacy.
If you just have a little contamination on a mirror, a laser will destroy it.
I think part of the idea here is that like soft body armor works against low power firearms like handguns but not rifles, a mirror layer inside of clothing will protect against laser weapons which are only marginally powerful enough to be lethal which will be the man portable ones for an extended time.
Trump has just named a supreme court justice who is likely to help role back abortion and gay marriage which are two issues a current and growing majority of Americans support.
And if the Democrats had not spent 100 years undermining federalism and states rights, this would not be a problem. Of course the Republicans helped also; federalism is only good when the other party is in power.
Lets put it this way, if you went nuts, which would you choose if you wanted to put a lot of holes in a crowd of people at fairly close range?
The bolt action is absolutely the correct choice for a single target at 100 yards.
Very few rifles of any type have a maximum point blank range *under* 100 yards. Most have a MPBR of 200 to 300 yards and even pistol caliber rifles extend to 150 yards.
So the advantages of a bolt action are very marginal at 100 yards and practically any type of rifle in good working order is sufficient at that range.
I am still waiting for the mass shooting where the victims had guns.
A civilian with a firearm will never preventing a mass shooting. If they did prevent it, then it would not be mass shooting. And if there was a mass shooting, then they failed to prevent it.
Looking at the murder rate in US. Damn it, you are really pussies, so many guns and still failing that much at self defense.
And now consider the murder rate without those 3 million self defense shootings.
What about homicide by other weapons? Does the availability of firearms somehow explain the number of knifings and people being killed by blunt force trauma?
The US has the distinct disadvantage it is very very wide. Sure , on the surface, one could believe it means a lot more army would be needed to invade, but the reality is that it means only a few soft target would be needed to cripple the US : if you target refinery, fuel depot, and energy infrastructure you cripple the US because of the distance it needs to travel. So your AR15 guys would face the problem they may have as many ar15 as they want, but they would be quickly isolated unable to travel far as an invading army would lock down fuel supply/energy supply. After a week or two the civilian would be unable to travel far , by fact that the US all places are far from each other. So basically you would be screwed.
Ask the British how that worked out with a mobile army versus stationary militia. Then consider what happened when the US deployed militia far from home in the War of 1812.
Switzerland and Finland during World War 2 provide good examples of what militia is for. Israel might be a more modern example.
I wonder if GPU's will overtake both of these, or at least push x86 and ARM into being mostly coordinators.
GPUs will not necessarily do this but specialized function units in some form will. This fits with the whole dark silicon thing.
Perhaps the market will shift to specialized chip-sets for AI, databases, graphics, etc., and x86 or ARM will mostly function as process coordinators which dish out specific tasks to specialized CPUs.
This has already happened where dedicated hardware offers a performance advantage however Amdahl's law means that high single thread performance does not become less important.
Let's see here. Producing an entry-level human takes over 16 years of high-intensity work involving dozens of skilled workers. More if he needs a post-graduate degree. Doesn't sound that easy to me.
Most of the work is handled by other humans keeping costs low.
Doesn't happen much, but this time I'm going to have to agree with Anonymous Coward. All that will be accomplished by making programming languages easier is fostering the proliferation of even less qualified jackasses flooding the market with dangerously insecure and buggy code.
I would settle for not creating false abstractions. JAVA is much worse but even C reflects an idealistic and false representation of how actual hardware works and proposed C replacements make the same mistake.
3) Hydro does not work well without water. And considering that CA is being hit by longer and longer droughts, and many of the reservoirs are still down, means a number of hydrodams are about to no longer work.
California has been removing dams including hydroelectric ones.
Well, the colonizing countries had strong and increasing national unification going, effective international coordination (from the Pope), solid industrial/economic bases with governments generating surpluses, recovery from the black death, and a resurgence in the use of science to make predictions as opposed to be guided by 2000 year old documents.
China had all of the same advantages and explored as far as Africa but then turned inwards and let her fleets rot. In addition to all of the above, the European countries had competition and various arms races. No one nation could say "no" to exploration and colonization for all of them and any of them them could say "yes" for themselves.
I find it perfectly acceptable for a private institution like facebook.
I would not find it in the least bit acceptable if the government ran censorship like that however and censored any text. A private company- yes, that's fine. The government... absolutely not.
If enough private companies do it, then the government will not have to.
I think there is nothing wrong with Facebook's algorithm in this case- it did what it was written to do- it caught unwanted language on it's system.
I'm pretty sure a lot of Mark Twain's work would rightly get blocked too.
Facebook executed legislative, judicial, and executive powers to produce prior restraint in a way which was at least a violation of the 1st and 5st Amendments so the government did not need to. Want to bet that they are not also violating the 2nd and 4th?
Slashdot Mirror
But how can they observe a direction unless the same neutrino interacts with more than one detector? Is that the chance encounter they are waiting for?
And once the neutrino interacts with the first detector, isn't it changed (I would think destroyed)?
The neutrinos do not interact with the detectors. Instead they react with the hydrogen in the water to produce charged leptons (electrons, muons, or taus depending on the neutrino type) which then produce Cherenkov radiation as they move through the ice and the detectors see that. Since momentum is conserved, the leptons move in approximately the same direction as the neutrino was.
https://pippagoldenberg.wordpr...
Neutrinos are electrically neutral leptons, and interact very rarely with matter. When they do react with the molecules of water in the ice, they can create charged leptons (electrons, muons, or taus). These charged leptons can, if they are energetic enough, emit Cherenkov radiation. This happens when the charged particle travels through the ice faster than the speed of light in the ice, similar to the bow shock of a boat traveling faster than the waves it crosses. This light can then be detected by photomultiplier tubes within the digital optical modules making up IceCube.
https://en.wikipedia.org/wiki/...
It's a basic premise of the rules of evidence that it's invalidated when a cop commits a crime to collect it, but not if a private citizen does it.
Only if it has been previously established on narrow grounds that what the cop did was unlawful and only if exclusion would serve to deter future violations. In other words, the exceptions have swallowed the rule.
Even worse trend in America is protesting your own rights, like the second amendment. Whats next?
Law enforcement has planned to and gotten caught collecting license plate data at gun shows and nobody cared. If they can do that to citizens exercising their rights than they can do it to everybody.
They do the same thing at political protests.
This. The government is required to have a warrant to track your whereabouts. This is well established through cases such as United States v. Jones 132 S.Ct. 945 (2012) where police tried to surreptitiously attach a GPS tracker to someone's car without a warrant, and Carpenter v. United States 16-402 S.Ct 585 (2017) which established that police require a warrant to obtain cellphone tower records.
United States v. Jones established that it was a violation of the 4th amendment's protection against unreasonable searches to trespass by attaching a GPS tracker to a vehicle without a warrant. It did not cover tracking absent physical intrusion and did not rely on expectation of privacy.
Ohm's law isn't changing any time in the next century.
Ohm's law cannot be changed because Georg Ohm is dead.
Hey, just was you see in the article pal.
If you just have a little contamination on a mirror, a laser will destroy it.
I think part of the idea here is that like soft body armor works against low power firearms like handguns but not rifles, a mirror layer inside of clothing will protect against laser weapons which are only marginally powerful enough to be lethal which will be the man portable ones for an extended time.
Weapons designed to operate through blinding are prohibited. If the weapon happens to blind as a side effect, that is fine.
Trump has just named a supreme court justice who is likely to help role back abortion and gay marriage which are two issues a current and growing majority of Americans support.
And if the Democrats had not spent 100 years undermining federalism and states rights, this would not be a problem. Of course the Republicans helped also; federalism is only good when the other party is in power.
Lets put it this way, if you went nuts, which would you choose if you wanted to put a lot of holes in a crowd of people at fairly close range?
The bolt action is absolutely the correct choice for a single target at 100 yards.
Very few rifles of any type have a maximum point blank range *under* 100 yards. Most have a MPBR of 200 to 300 yards and even pistol caliber rifles extend to 150 yards.
So the advantages of a bolt action are very marginal at 100 yards and practically any type of rifle in good working order is sufficient at that range.
I am still waiting for the mass shooting where the victims had guns.
A civilian with a firearm will never preventing a mass shooting. If they did prevent it, then it would not be mass shooting. And if there was a mass shooting, then they failed to prevent it.
Looking at the murder rate in US. Damn it, you are really pussies, so many guns and still failing that much at self defense.
And now consider the murder rate without those 3 million self defense shootings.
What about homicide by other weapons? Does the availability of firearms somehow explain the number of knifings and people being killed by blunt force trauma?
The US has the distinct disadvantage it is very very wide. Sure , on the surface, one could believe it means a lot more army would be needed to invade, but the reality is that it means only a few soft target would be needed to cripple the US : if you target refinery, fuel depot, and energy infrastructure you cripple the US because of the distance it needs to travel. So your AR15 guys would face the problem they may have as many ar15 as they want, but they would be quickly isolated unable to travel far as an invading army would lock down fuel supply/energy supply. After a week or two the civilian would be unable to travel far , by fact that the US all places are far from each other.
So basically you would be screwed.
Ask the British how that worked out with a mobile army versus stationary militia. Then consider what happened when the US deployed militia far from home in the War of 1812.
Switzerland and Finland during World War 2 provide good examples of what militia is for. Israel might be a more modern example.
The biggest trick the devil ever pulled was convincing people that the AR-15 is a "modern sporting rifle".
Law enforcement calls them "patrol rifles" now.
I wonder if GPU's will overtake both of these, or at least push x86 and ARM into being mostly coordinators.
GPUs will not necessarily do this but specialized function units in some form will. This fits with the whole dark silicon thing.
Perhaps the market will shift to specialized chip-sets for AI, databases, graphics, etc., and x86 or ARM will mostly function as process coordinators which dish out specific tasks to specialized CPUs.
This has already happened where dedicated hardware offers a performance advantage however Amdahl's law means that high single thread performance does not become less important.
They build a charge by scuffing across the carpet. Humans can't fly because with only 2 feet we can only generate 1/4th the charge.
That explains why aircraft cabins are carpeted.
Let's see here. Producing an entry-level human takes over 16 years of high-intensity work involving dozens of skilled workers. More if he needs a post-graduate degree. Doesn't sound that easy to me.
Most of the work is handled by other humans keeping costs low.
Great, so now you have compiled a list of reasons for robots to enslave humans. Some people believe this has already happened.
Doesn't happen much, but this time I'm going to have to agree with Anonymous Coward. All that will be accomplished by making programming languages easier is fostering the proliferation of even less qualified jackasses flooding the market with dangerously insecure and buggy code.
I would settle for not creating false abstractions. JAVA is much worse but even C reflects an idealistic and false representation of how actual hardware works and proposed C replacements make the same mistake.
I use lots of C++. I also ignore major portions of it. I do not need all of it.
The problem is when dealing with someone elses code.
3) Hydro does not work well without water. And considering that CA is being hit by longer and longer droughts, and many of the reservoirs are still down, means a number of hydrodams are about to no longer work.
California has been removing dams including hydroelectric ones.
Well, the colonizing countries had strong and increasing national unification going, effective international coordination (from the Pope), solid industrial/economic bases with governments generating surpluses, recovery from the black death, and a resurgence in the use of science to make predictions as opposed to be guided by 2000 year old documents.
China had all of the same advantages and explored as far as Africa but then turned inwards and let her fleets rot. In addition to all of the above, the European countries had competition and various arms races. No one nation could say "no" to exploration and colonization for all of them and any of them them could say "yes" for themselves.
I find it perfectly acceptable for a private institution like facebook.
I would not find it in the least bit acceptable if the government ran censorship like that however and censored any text. A private company- yes, that's fine. The government... absolutely not.
If enough private companies do it, then the government will not have to.
I think there is nothing wrong with Facebook's algorithm in this case- it did what it was written to do- it caught unwanted language on it's system.
I'm pretty sure a lot of Mark Twain's work would rightly get blocked too.
Facebook executed legislative, judicial, and executive powers to produce prior restraint in a way which was at least a violation of the 1st and 5st Amendments so the government did not need to. Want to bet that they are not also violating the 2nd and 4th?
I think they meant TSA
I think they meant every law enforcement agency that uses civil assets forfeiture, which includes TSA.