You don't have to worry about the skin effect pushing high frequency current out into an insulator. Layers of miscellaneous crud at the surface of copper, silver, and aluminum can still conduct a bit depending on their age and depth, and they don't form a "nice extra layer of insulation protecting the rest of the wire from oxidation". Nickel does form a well-defined layer of oxidation that protects it, but not well enough to insulate a wire.
At very high frequencies the skin effect draws most of the current into the outermost layers of the conductor; so the logic is that you want to avoid materials that form an oxidized layer on the surface.
If you're going to say you fixed his post for him, you should really fix everything. He misspelled "thought" as "though", which didn't get the red underline.
He may be attempting to use clever rewording to quietly start a rumor that the world really is smaller by a factor of approx. 3.14159, which surely makes you wonder at the subtle motives behind using such a weird ratio... unlike the round regular numbers you'd expect. Was that a deliberate ploy?
We need to maintain the integrity of the voting process by collecting a tax on people who show up to vote and detaining them if they can't produce a long form birth certificate upon request.
And it's not your place to decide who a company can and can't do business with, based on your own moral and political views.
Uhhhh... I've seen local businesses have to stop taking one card or another when payment processors decide they shouldn't be processing payments for them. If all three of them decide a business should only accept cash, it will put them right out of business. It's not some goofy financial corporation's place to decide who I can and can't do business with, based on their moral and political posturing.
When the public power grid was being established, a clock manufacturer petitioned successfully to have the mains time kept in perfect 60 Hz synchrony for clocks to keep time off of. This was viewed by everyone as a Big Win. After that, all you needed to make a clock was an AC motor; really nobody needed to actually bother with a real clock anymore except the people at the power station, so "the grid was the clock" the way "the network is the computer".
Ah, he, who warned the.uk suffix types that they weren't gonna be takin' away our headers, uh, by sendin' those packets and, um, makin' sure as he's sendin' his stateful ensembles through tubes, to send those warnin' packets each containin' a message body sayin' that we were gonna be secure and we were gonna be free!
It needs to be "public" enough so no one thinks anyone is hiding anything in there. Therefore anyone can walk into a courtroom and watch a public trial.
How does this differ from the classic two-slit experiment?
Well you can't tell from the article, so I'm guessing based on the abstract.
From what I gather about this, think of what calcite does. It exhibits birefringence, meaning it has different indices of refraction for photons polarized vertically vs. horizontally. You can see that with the way unpolarized light in the room gets deflected by a piece of calcite if you put it on the page of a book, when you see two images of every letter.
So I think what they did here was the classic two slit experiment, with three differences. First, each slit gets a polarizer placed in front, with the left and right slits each getting a polarizer that is oriented perpendicularly to the other one. Now, for a given photon to get through one slit or the other, it can only have one polarization vs. the other. But you haven't yet destroyed the interference pattern since you didn't measure its polarization, so the uncertainty of which slit remains, and the ripples showing on the screen should still show.
Second, the sheet of calcite is placed behind the slits, so if a photon went through the right vs. left slit, we can see that when the calcite displaces it clearly in one of two directions based on that. Now we know what the polarization was when it hits the screen, when it hits one of two separate lines now showing there. And there are no ripples in each of these two lines now [guessing confidently], since we are making a really strong measurement of position at time of slit passage. As if we were blocking one of the slits.
Third, you only take a picture of the resulting pattern with a camera, having a long exposure time.You record where it hit, but you don't know which one hit there. You only have a probability distribution of where any given photon might have struck the screen. [Think, "I am Spartacus!"]
This is making a "weak" measurement for each given photon, because you're only talking about the average of all photons going through these slits. And so what you see on the screen is what you were seeing before, the two lines separated, but now with no knowledge of photon identity. You shined a lot of photons through the apparatus without possibly having any knowledge of which one went where, like you might somehow while looking at a screen all night with fast eyes or instruments.
What they are reporting is that the ripples return when you use this measurement-weakening time-lapse photography procedure [guessing confidently again]. That's why these Canadians will see the ripples go away on a scatter plot if they slow this thing down to a stream of single photons so that they can carefully watch where each photon hits on the screen. The use of a camera and only walking into the room after taking the picture is critical if you intend to see interference patterns.
I think we can insist on the same degree of rigor from science which is supposed to effect public policy as we do from investment banks.
Uh no. People in investment banks have an obvious motive to deviate from your standard and are in positions where they have to be trusted in a way that scientists do not.
Scientific people know very well that time is only a kind of space. We can move forward and backward in time just as we can move forward and backward in space.
To prove this theory, I invented a machine to travel through time. If you pressed one lever, the machine went back into the past. If you pressed the other lever, the machine glided forward into the future. With this machine, I set out to explore time.
An MD50 of LSD costs in the ballpark of $10. Given the LD50/MD50 ratio I'm sure this guy couldn't afford to kill himself with LSD. Much less an anti-nuclear hippie, right...?
FWIW, the TMI plant released: 13 curies, and the Chernobyl accident released: 1,000,000 curies [Soviet estimate]. Their reactor blew apart and their moderator caught fire, so it was really on a scale of its own. Second prize in this lineup won't mean too much, Japan.
A great BR sequel could really be made at this point with Charlie Sheen as he undergoes his bipolar-1 induced psychotic break. [A non-drug-related tragedy for which he goes untreated while serving as a source of entertainment for us all.] Assuming Rx = lithium for a moment, there can be lithium-free and fully lithiated performances from Charlie as he loses and gains sanity from acquiring some thing or reaching some place or something. His scenes before gaining sanity in the screenplay could be left as blank pages because Charlie is perfectly capable of improvising several pages of "psychotic" monologue on the spot. e.g. "I've seen things you people wouldn't believe... All these moments will be lost in time... like tears in the rain... time to take my lithium [gulp]."
Seriously, as for the original actors from an almost three-decades-old movie, no.
As far as classical electromagnetism is concerned, if you consider a classical model of a uniformly, negatively charged sphere of radius R, balanced by a positive point charge at center, there is no electric field acting on a negative charge outside the sphere. Once inside it, an electric field comes out of the center and gets stronger the deeper in it goes. So an antiproton has no trouble there.
You can solve Schrodinger's equation for the case of a point positive charge surrounded by antiprotons in orbitals. (An antiproton could theoretically occupy an s, p, d, f antiproton orbital briefly, if you ignore the fact that it will annihilate when it finds the nucleus.) Both electrons and antiprotons are leptons and have to satisfy the Pauli exclusion principle. But since electrons are not antiprotons they won't see each other that way (i.e. like bricks) and the antiproton should fall right through bound electrons without worrying about which orbitals are occupied.
No, he's selling books and getting ratings and a lot of money.
This is the way a lot of psychopaths make a living.
Folks who think Beck is crazy are just as bamboozled as any of his fans. It's really hilarious.
I've read this exact sentence many times on this site. Whether or not Beck is schizophrenic is his own dirty secret. He manifestly lacks a sense of compassion for anyone else; whether that's "crazy" or not is irrelevant.
Seriously, though, any chance that they're poking through those e-mails more and reading them more carefully than they did when they were originally written/read, and "shredding" those e-mails which make Sarah Palin look like even more air-headed?
Your analysis falls apart completely with the phrase "more carefully". It's possible they're poking through, but the most likely scenario is that they'll shred the wrong emails; how will they distinguish which of her statements are embarrassing? Sarah should hire Keith Olbermann as a consultant, as he has a couple months off, and no one in Palin's camp seems able to warn her when she is being offensive.
Slashdot Mirror
If a guy is a lot older than you, make sure to always use his android phone when calling.
You don't have to worry about the skin effect pushing high frequency current out into an insulator. Layers of miscellaneous crud at the surface of copper, silver, and aluminum can still conduct a bit depending on their age and depth, and they don't form a "nice extra layer of insulation protecting the rest of the wire from oxidation". Nickel does form a well-defined layer of oxidation that protects it, but not well enough to insulate a wire.
At very high frequencies the skin effect draws most of the current into the outermost layers of the conductor; so the logic is that you want to avoid materials that form an oxidized layer on the surface.
If you're going to say you fixed his post for him, you should really fix everything. He misspelled "thought" as "though", which didn't get the red underline.
He may be attempting to use clever rewording to quietly start a rumor that the world really is smaller by a factor of approx. 3.14159, which surely makes you wonder at the subtle motives behind using such a weird ratio... unlike the round regular numbers you'd expect. Was that a deliberate ploy?
...whoosh..
Maybe that was too far out there; I was making a veiled reference to the voter ID laws sold to fix all problems with elections.
We need to maintain the integrity of the voting process by collecting a tax on people who show up to vote and detaining them if they can't produce a long form birth certificate upon request.
And it's not your place to decide who a company can and can't do business with, based on your own moral and political views.
Uhhhh... I've seen local businesses have to stop taking one card or another when payment processors decide they shouldn't be processing payments for them. If all three of them decide a business should only accept cash, it will put them right out of business. It's not some goofy financial corporation's place to decide who I can and can't do business with, based on their moral and political posturing.
When the public power grid was being established, a clock manufacturer petitioned successfully to have the mains time kept in perfect 60 Hz synchrony for clocks to keep time off of. This was viewed by everyone as a Big Win. After that, all you needed to make a clock was an AC motor; really nobody needed to actually bother with a real clock anymore except the people at the power station, so "the grid was the clock" the way "the network is the computer".
Ah, he, who warned the .uk suffix types that they weren't gonna be takin' away our headers, uh, by sendin' those packets and, um, makin' sure as he's sendin' his stateful ensembles through tubes, to send those warnin' packets each containin' a message body sayin' that we were gonna be secure and we were gonna be free!
It needs to be "public" enough so no one thinks anyone is hiding anything in there. Therefore anyone can walk into a courtroom and watch a public trial.
and did warn the British that they would not be able to take away the colonists' guns?
Weren't they pouring water down his lungs at the time? I guess he rang the bell once for "yes" twice for "no".
That's the whole point, that a single long exposure will produce a different result than you see with a video camera.
How does this differ from the classic two-slit experiment?
Well you can't tell from the article, so I'm guessing based on the abstract.
From what I gather about this, think of what calcite does. It exhibits birefringence, meaning it has different indices of refraction for photons polarized vertically vs. horizontally. You can see that with the way unpolarized light in the room gets deflected by a piece of calcite if you put it on the page of a book, when you see two images of every letter.
So I think what they did here was the classic two slit experiment, with three differences. First, each slit gets a polarizer placed in front, with the left and right slits each getting a polarizer that is oriented perpendicularly to the other one. Now, for a given photon to get through one slit or the other, it can only have one polarization vs. the other. But you haven't yet destroyed the interference pattern since you didn't measure its polarization, so the uncertainty of which slit remains, and the ripples showing on the screen should still show.
Second, the sheet of calcite is placed behind the slits, so if a photon went through the right vs. left slit, we can see that when the calcite displaces it clearly in one of two directions based on that. Now we know what the polarization was when it hits the screen, when it hits one of two separate lines now showing there. And there are no ripples in each of these two lines now [guessing confidently], since we are making a really strong measurement of position at time of slit passage. As if we were blocking one of the slits.
Third, you only take a picture of the resulting pattern with a camera, having a long exposure time.You record where it hit, but you don't know which one hit there. You only have a probability distribution of where any given photon might have struck the screen. [Think, "I am Spartacus!"]
This is making a "weak" measurement for each given photon, because you're only talking about the average of all photons going through these slits. And so what you see on the screen is what you were seeing before, the two lines separated, but now with no knowledge of photon identity. You shined a lot of photons through the apparatus without possibly having any knowledge of which one went where, like you might somehow while looking at a screen all night with fast eyes or instruments.
What they are reporting is that the ripples return when you use this measurement-weakening time-lapse photography procedure [guessing confidently again]. That's why these Canadians will see the ripples go away on a scatter plot if they slow this thing down to a stream of single photons so that they can carefully watch where each photon hits on the screen. The use of a camera and only walking into the room after taking the picture is critical if you intend to see interference patterns.
And at least someone could be expected to ETFWL.
I think we can insist on the same degree of rigor from science which is supposed to effect public policy as we do from investment banks.
Uh no. People in investment banks have an obvious motive to deviate from your standard and are in positions where they have to be trusted in a way that scientists do not.
We should stop admitting Musical immigrants to our shores who don't believe in our values as Americans.
Scientific people know very well that time is only a kind of space. We can move forward and backward in time just as we can move forward and backward in space.
To prove this theory, I invented a machine to travel through time. If you pressed one lever, the machine went back into the past. If you pressed the other lever, the machine glided forward into the future. With this machine, I set out to explore time.
An MD50 of LSD costs in the ballpark of $10. Given the LD50/MD50 ratio I'm sure this guy couldn't afford to kill himself with LSD. Much less an anti-nuclear hippie, right...?
FWIW, the TMI plant released: 13 curies, and the Chernobyl accident released: 1,000,000 curies [Soviet estimate]. Their reactor blew apart and their moderator caught fire, so it was really on a scale of its own. Second prize in this lineup won't mean too much, Japan.
You're referring to the 403 Forbidden, right?
A great BR sequel could really be made at this point with Charlie Sheen as he undergoes his bipolar-1 induced psychotic break. [A non-drug-related tragedy for which he goes untreated while serving as a source of entertainment for us all.] Assuming Rx = lithium for a moment, there can be lithium-free and fully lithiated performances from Charlie as he loses and gains sanity from acquiring some thing or reaching some place or something. His scenes before gaining sanity in the screenplay could be left as blank pages because Charlie is perfectly capable of improvising several pages of "psychotic" monologue on the spot. e.g. "I've seen things you people wouldn't believe... All these moments will be lost in time... like tears in the rain... time to take my lithium [gulp]."
Seriously, as for the original actors from an almost three-decades-old movie, no.
Ergo, Do Androids Dream of Electric Sheep is one of his lesser books!
IANAP but my guess is negligible energy.
As far as classical electromagnetism is concerned, if you consider a classical model of a uniformly, negatively charged sphere of radius R, balanced by a positive point charge at center, there is no electric field acting on a negative charge outside the sphere. Once inside it, an electric field comes out of the center and gets stronger the deeper in it goes. So an antiproton has no trouble there.
You can solve Schrodinger's equation for the case of a point positive charge surrounded by antiprotons in orbitals. (An antiproton could theoretically occupy an s, p, d, f antiproton orbital briefly, if you ignore the fact that it will annihilate when it finds the nucleus.) Both electrons and antiprotons are leptons and have to satisfy the Pauli exclusion principle. But since electrons are not antiprotons they won't see each other that way (i.e. like bricks) and the antiproton should fall right through bound electrons without worrying about which orbitals are occupied.
No, he's selling books and getting ratings and a lot of money.
This is the way a lot of psychopaths make a living.
Folks who think Beck is crazy are just as bamboozled as any of his fans. It's really hilarious.
I've read this exact sentence many times on this site. Whether or not Beck is schizophrenic is his own dirty secret. He manifestly lacks a sense of compassion for anyone else; whether that's "crazy" or not is irrelevant.
There is no lander. We're just shooting the laser at Mars from Pasadena.
Seriously, though, any chance that they're poking through those e-mails more and reading them more carefully than they did when they were originally written/read, and "shredding" those e-mails which make Sarah Palin look like even more air-headed?
Your analysis falls apart completely with the phrase "more carefully". It's possible they're poking through, but the most likely scenario is that they'll shred the wrong emails; how will they distinguish which of her statements are embarrassing? Sarah should hire Keith Olbermann as a consultant, as he has a couple months off, and no one in Palin's camp seems able to warn her when she is being offensive.