It was my understanding that when a photon travels from point A to point B it does so using every possible path until the waveform coalesces.
The Path Integral interpretation says that the photon travels every possible path if you do not meausure it while is traveling. The double-slit experiment, in this case, can be understood as limiting the possible paths to only 2 at a particular line (you assume it can only go through one slit or the other).
Heisenberg's uncertainity principle only applies to Non-Commuting variables (like position and momentum). The interference effect here is not trying to measure one in terms of the other, so it is not an importat effect.
This is a good point, but I'm sure the researchers have considered it.
The paper doesn't address this issue, nor the references.
The limiting factor will be inelastic flexion of the cantilever, which can be made small in a number of ways, not least of which is keeping the amplitude of vibration small.
Even if you use small amplitudes or an almost ideal cantilever, the cantilever is still part of a bigger system with a thermal source (the outside, infinite degrees of freedom, yaddy yaddy yadda). My questions is not only considering thermal exchange, but also just the fact of leaking the wave fuction of the cantilever to "the outside". It is well known that since "the outside" has so many degrees of freedom, they will somehow measure the cantilever, collapsing it to some eigenstate. The only idea around this that I can think of is a floating, isolated mirror in a vacuum chamber. And even then you have to watch out for the force you use to "float" the mirror, make sure it doesn't couple with the mirror state Hamiltonian. Other wise, once again, it would make "the outside" and the mirror part of the same system, ruining the isolation.
The hard part of doing QM effects on cats (big systems) is that it gets harder and harder to close the system to the rest of the universe. A lot of people have suggested that this is what makes everything look so classical in our everyday experience.
The cantilever (vibrating arm) is connected to something (the outside). Even if you cool it down a lot, to prevent thermal effects from the outside, the vibrations of the cantilever will heat up the system, and this counts as an observation. The paper doesn't mention how to correct this.
BRIDGEKEEPER: Stop! What... is your name?
GALAHAD: 'Sir Galahad of Camelot'.
BRIDGEKEEPER: What... is your quest?
GALAHAD: I seek the Grail.
BRIDGEKEEPER: What... is your favourite colour?
GALAHAD: Blue. No, yel-- auuuuuuuugh!
This is insanely stupid, I can imagine in the near future the ads:
This computer comes with 100GB of HD*!
*HD size may vary. Some restrictions apply. Professional in a closed course. Caution, do not eat, migh be hot. Do not insert into ear canal. May cause seizure. May cause drowsyness...
I met this guy that for a summer was doing some sort of biological research that, among other tasks, had to masturbate hamsters as part of his job. In words of Minsc from Baldur's Gate 2:
They have a new system where you have to dress-up to get some special abilities and stats (seriously!). You have to change clothes in teh middle of the battle to exploit them, and some of the previews say that this makes it very tactical. So, it is not the same system
Yes there was! After beating all the bosses, in the first Dr Willy stage there where several spots with a lot of bad guys that jumped into you. I used to sit there, with the Leaf Shield, and the bad guys would just jump on me an be instantly killed, sometimes dropping goodies. At certain points you could do it and get into a 'pattern' where they would start dropping 1ups every now and then!!! I remember, I would leave it there, go do something else, then come back and, bam!, tons of extra lives! Ohhhh... the good old days. I hope they keep that little trick (exploit?) for this compilation!
Their point is that those activities are not disturbing. So, think about it as a proof by contradiction, in the same line as that spammer that somebody posted his address in/. , and people sent a lot of spam to his house. He had to publicly declare that the spam did bother him, contradicting his previous arguments.
It is not illegal. I wish it was, and nobody would have to do this.
What is next, iTunes? It would really suck if someone like the Beatles tried to mess up with this nez music biz model that seems to be an alternative to the crappy one that RIAA wants us to have.
Oh wow, I even got RIAA into this... if I could only get SCO... and maybe M$ too...
SCO: Mommy! IBM stole my candy!
Mom: But the candy jar is for everyone everyone... they didn't steal your candy, the candy jar is to share candy. We love to share in this family, don't we?
SCO: But I want it ALL!
SCO Lawyers: They have to pay us $700 for each candy they took. And, we declarer sharing candy in the form of public candy jars illegal!
I have a 30gig iPod filled with 21 gigs of mp3s and then some data.
The neat thing about the iPod is that it is very easy to navigate the files as long as you have them with the correct ID3tags. I have tagged most of my mp3s, but still quite a few to go through.
Can anyone recommend a good program to fix the mp3 tags? Something that can do recursive tagging, batch copying between ID3v1, ID3v2 and file names and runs on a linux/windoze computer?
It is unfair to critize the scientist saying that what they do doesn't have applications. Some of it does, some of it doesn't, but they ARE discovering new phenomena after all. You talk about High Tc Super Conductors, but forget about the transistor and many other. It is hard to predict what will be the big next thing. Scientist try to milk phenomenas as much as they can, sometimes with high hopes, and sometimes their expectations were not realistic. This happens in engineering too. The good thing about science that even if there isn't an immediate application, maybe in the far future there will be. And, you can always do science just because understanding the universe can't be a bad thing.
This is important because the main reason super sonic airplanes are not used more often for civils is because of the sonic boom. The sonic booms can be very loud and disturbs urban areas. The Concord, for example, had to wait to be very far away from populated areas before getting into super sonic speeds. This rwas costly, since the Concord was design to have optimal fuel efficiency at super sonic speeds.
Slashdot Mirror
The Path Integral interpretation says that the photon travels every possible path if you do not meausure it while is traveling. The double-slit experiment, in this case, can be understood as limiting the possible paths to only 2 at a particular line (you assume it can only go through one slit or the other).
Heisenberg's uncertainity principle only applies to Non-Commuting variables (like position and momentum). The interference effect here is not trying to measure one in terms of the other, so it is not an importat effect.
The paper doesn't address this issue, nor the references.
The limiting factor will be inelastic flexion of the cantilever, which can be made small in a number of ways, not least of which is keeping the amplitude of vibration small.
Even if you use small amplitudes or an almost ideal cantilever, the cantilever is still part of a bigger system with a thermal source (the outside, infinite degrees of freedom, yaddy yaddy yadda). My questions is not only considering thermal exchange, but also just the fact of leaking the wave fuction of the cantilever to "the outside".
It is well known that since "the outside" has so many degrees of freedom, they will somehow measure the cantilever, collapsing it to some eigenstate.
The only idea around this that I can think of is a floating, isolated mirror in a vacuum chamber. And even then you have to watch out for the force you use to "float" the mirror, make sure it doesn't couple with the mirror state Hamiltonian. Other wise, once again, it would make "the outside" and the mirror part of the same system, ruining the isolation.
The hard part of doing QM effects on cats (big systems) is that it gets harder and harder to close the system to the rest of the universe. A lot of people have suggested that this is what makes everything look so classical in our everyday experience.
The cantilever (vibrating arm) is connected to something (the outside). Even if you cool it down a lot, to prevent thermal effects from the outside, the vibrations of the cantilever will heat up the system, and this counts as an observation. The paper doesn't mention how to correct this.
"I know how to program games, A to jump, and after I get the flower, B for fireballs... dumdi dumdi dum"
BRIDGEKEEPER: Stop! What... is your name? GALAHAD: 'Sir Galahad of Camelot'. BRIDGEKEEPER: What... is your quest? GALAHAD: I seek the Grail. BRIDGEKEEPER: What... is your favourite colour? GALAHAD: Blue. No, yel-- auuuuuuuugh!
This computer comes with 100GB of HD*!
*HD size may vary. Some restrictions apply. Professional in a closed course. Caution, do not eat, migh be hot. Do not insert into ear canal. May cause seizure. May cause drowsyness...
Fusion is hotter than an older college chick.
Every hamster has his day!
"The Emperor is not as forgiving as I am" -Bush
Make that RIAArrrrrr
They have a new system where you have to dress-up to get some special abilities and stats (seriously!). You have to change clothes in teh middle of the battle to exploit them, and some of the previews say that this makes it very tactical. So, it is not the same system
Yes there was! After beating all the bosses, in the first Dr Willy stage there where several spots with a lot of bad guys that jumped into you. I used to sit there, with the Leaf Shield, and the bad guys would just jump on me an be instantly killed, sometimes dropping goodies. At certain points you could do it and get into a 'pattern' where they would start dropping 1ups every now and then!!! I remember, I would leave it there, go do something else, then come back and, bam!, tons of extra lives! Ohhhh... the good old days. I hope they keep that little trick (exploit?) for this compilation!
It is not illegal. I wish it was, and nobody would have to do this.
There was going to be a Linux version, but SCO wanted $700 for each pane.
Oh wow, I even got RIAA into this... if I could only get SCO ... and maybe M$ too...
The Beatles, SCO and RIAA vs Apple, IBM and the return of the 12yo Girl (with Mask)
and resolve all those things once and for all.
SCO: Mommy! IBM stole my candy!
Mom: But the candy jar is for everyone everyone... they didn't steal your candy, the candy jar is to share candy. We love to share in this family, don't we?
SCO: But I want it ALL!
SCO Lawyers: They have to pay us $700 for each candy they took. And, we declarer sharing candy in the form of public candy jars illegal!
The funny things is that RIAA is trying to fsck this 12yo girl, while preaching that p2p is for child porn and is evil
It is funny that they are sending a letter to the OpenSource community, considering that before they said that the OpenSource license is illegal.
The neat thing about the iPod is that it is very easy to navigate the files as long as you have them with the correct ID3tags. I have tagged most of my mp3s, but still quite a few to go through.
Can anyone recommend a good program to fix the mp3 tags? Something that can do recursive tagging, batch copying between ID3v1, ID3v2 and file names and runs on a linux/windoze computer?
It is unfair to critize the scientist saying that what they do doesn't have applications. Some of it does, some of it doesn't, but they ARE discovering new phenomena after all. You talk about High Tc Super Conductors, but forget about the transistor and many other. It is hard to predict what will be the big next thing. Scientist try to milk phenomenas as much as they can, sometimes with high hopes, and sometimes their expectations were not realistic. This happens in engineering too. The good thing about science that even if there isn't an immediate application, maybe in the far future there will be. And, you can always do science just because understanding the universe can't be a bad thing.
This is important because the main reason super sonic airplanes are not used more often for civils is because of the sonic boom. The sonic booms can be very loud and disturbs urban areas. The Concord, for example, had to wait to be very far away from populated areas before getting into super sonic speeds. This rwas costly, since the Concord was design to have optimal fuel efficiency at super sonic speeds.
Mario has been prosecuted before for vandalism in Isle Delfino, as well as illegal drug prescriptions in Dr. Mario.