Ok, I agree on that, and I totally believe your last sentence. Scientific funding is relying so much on the interest into specific terms and combinations of them, when you know the details it often does not make much sense. I have my own experiences with that.
Actually I just remember reading the paragraph on superliquid Helium in that physics book. It wasn't more than a pragraph and must have been new to the author. So it might have been written up to 50 years ago. Well, it's often a problem on such boards that you have no idea of the level of others in a topic.
You are calling me ignorant, yet you haven't explained anything yet. Only linked to an unrelated article which was wasting my time. And you insulted me as a physicist right in the beginning for no reason.
I am not a specialist in low-temperature physics. The professor who stated that connection back when I studied worked on low-temperature experiments though.
I don't know why you don't see that connection. In what I linked to is one paragraph which is not clear to me, I guess it does when you work in the field. I don't have the time to read up on the whole field just for that, maybe you can explain it once you are in a mood for that:
Incidentally, what you call BEC is not superfluid without interactions because the low momentum excitation have zero speed, as is well known too. Superfluidity requires that zero energy fluctuations have finite speed (or a gap) and that the temperature is less than a critical value. This is correct for interacting bosons, like Helium 4 but also for fermions like Helium 3, but there things are more complex than what is described by the original Landau theory because of a complex relation between the order parameter and the spin of the particles, but it remains within the general framework of this theory.
First sentence, what interactions, and what low momentum excitations (in BEC or superfuid)? Does he just state that a BEC needs additional interactions to become a superfluid? That still does not contradict my statement though. Well, and from the last sentence I could conclude that He-3 isn't bosons, so only superliquid He-4 can be a BEC.
And I say you have a problem, spying insults for no reason. And you don't know how to read.
This is other physicists discussing the same question, do it is obviously not obvious. And at least two answers state that BEC is a prerequisite for superfluidity.
Come on. Superfluid helium is a Bose-Einstein-Condensate, right? And it's superfluid properties are used for cooling.
Though I have no idea if the current research on BEC is related to this in any way.
Merkel also isn't head of the paye party anymore. But her party follows get more than I like. They just do this to stay in power though, the party could vote her out of office any time.
Trump cancelled the Iran agreement and imposed lots of tariffs on the world without any consultation of the parliament. I don't think this is possible anywhere in theEU. And he is the head of the military, I don't know if this is the case anywhere in the EU. And are you sure he can't just declare war? I thought he could. He can even just launch a nuclear strike.
In which country? As far as I know legislative power is with the parliaments only. They usually have less power than theUD president, e.g. they can't impose tariffs, or do anything with international treaties. They also need the parliament's approval to go to war.
You have Trump in the US. It looks likea joke when you tell us that European election systems allow worse people to get in power.
In many countries no single person could even get as much power as he got, nowadays.
I once made sourdough bread myself and added more of the starter culture to the dough than you normally would, since I just had too much. It turned out to be pretty sour. But what was really interesting: when the bread got older it never grew mould as it normally does. Instead it just got even more sour over time. The environment of the dough did not permit mould to grow, even after the initial organisms were killed by baking.
I'm fully in with your love on fermented food. I am from Germany. We have the well-known Sauerkraut. The proper one is fermented; you have to check the ingredient list though to see if it is, of they add an acid instead of just salt it probably isn't fermented.
Also we always have sourdough bread, which is also the result of fermentation. There was the same issue in the past, that some tried to replace the fermentation process by adding an acid instead, but no one liked it. Of course not, the sour taste is just a side effect of the fermentation. What makes us like it is the partial digestion of the food by bacteria or yeast, which for example breaks up the long chains of starch into easier digestible shorter carbohydrates.
Well, in these two foods the microorganisms are clearly not getting into our intestine, since they die during cooking and baking. In other foods a few might survive somehow, but still I don't believe that the organisms themselves have any relevance for our intestine.
The fermenting organisms create environments where other, possibly harmful organisms can't survive. Maybe it's the composition of these environments that has a positive effect on us.
I think probiotics in capsules are something completely different. The capsules are resistant to the acids of the stomach, they are only dissolved by the enzymes in the intestine. So the bacteria get placed right where they should be, and it is a defined selection of them.
What seems crazy to me is to try to replace that with fermented food. You don't know what bacteria you have and most of them won't make it to the intestine anyway.
This is just crazy. You don't know what kind of bacteria is in this food. And most bacteria in our food are killed by the acids in our stomach.
I don't know why they even list yoghurt in the summary. If it contains probiotics they will probably not make it to the intestine. They put them in just four advertisement, afaik they have no proven effect.
As I understand it they are not undermining the president though. They cover some of his mistakes. So they make him look better and avoid the escalation towards invoking the 25th Amendment. They help Trump to stay in his position, avoid the ultimate fail of the Republicans, and the government crisis that would paralyze the US for months.
Ok, sounds really great for vehicles. They just have to make sure that the laser beam isn't scattered so much that it becomes visible. This would point right to the vehicle's position.
Solar cells are probably lighter than a battery for even a few minutes, if they use enough laser power density. And this can fly forever. Though I also wonder, what for, with this limited range.
I don't see any advantage in case-sensitive identifiers. I started without it, in Pascal, and it is just more natural and avoids lots of trouble. You can just use identifiers like spoken words, not worrying which word in it starts with a capital or not. To distinguish types from variables just add a t in front.
Slashdot Mirror
Ok, I agree on that, and I totally believe your last sentence. Scientific funding is relying so much on the interest into specific terms and combinations of them, when you know the details it often does not make much sense. I have my own experiences with that.
Actually I just remember reading the paragraph on superliquid Helium in that physics book. It wasn't more than a pragraph and must have been new to the author. So it might have been written up to 50 years ago. Well, it's often a problem on such boards that you have no idea of the level of others in a topic.
I am not a specialist in low-temperature physics. The professor who stated that connection back when I studied worked on low-temperature experiments though.
I don't know why you don't see that connection. In what I linked to is one paragraph which is not clear to me, I guess it does when you work in the field. I don't have the time to read up on the whole field just for that, maybe you can explain it once you are in a mood for that:
Incidentally, what you call BEC is not superfluid without interactions because the low momentum excitation have zero speed, as is well known too. Superfluidity requires that zero energy fluctuations have finite speed (or a gap) and that the temperature is less than a critical value. This is correct for interacting bosons, like Helium 4 but also for fermions like Helium 3, but there things are more complex than what is described by the original Landau theory because of a complex relation between the order parameter and the spin of the particles, but it remains within the general framework of this theory.
First sentence, what interactions, and what low momentum excitations (in BEC or superfuid)? Does he just state that a BEC needs additional interactions to become a superfluid? That still does not contradict my statement though. Well, and from the last sentence I could conclude that He-3 isn't bosons, so only superliquid He-4 can be a BEC.
And I say you have a problem, spying insults for no reason. And you don't know how to read.
This is other physicists discussing the same question, do it is obviously not obvious. And at least two answers state that BEC is a prerequisite for superfluidity.
Please get of your high horse. What do you say to this? https://www.researchgate.net/p...
Come on. Superfluid helium is a Bose-Einstein-Condensate, right? And it's superfluid properties are used for cooling.
Though I have no idea if the current research on BEC is related to this in any way.
I think cooling with superfluid helium is an actual application of a BEC.
Merkel also isn't head of the paye party anymore. But her party follows get more than I like. They just do this to stay in power though, the party could vote her out of office any time.
Trump cancelled the Iran agreement and imposed lots of tariffs on the world without any consultation of the parliament. I don't think this is possible anywhere in theEU. And he is the head of the military, I don't know if this is the case anywhere in the EU. And are you sure he can't just declare war? I thought he could. He can even just launch a nuclear strike.
In which country? As far as I know legislative power is with the parliaments only. They usually have less power than theUD president, e.g. they can't impose tariffs, or do anything with international treaties. They also need the parliament's approval to go to war.
You have Trump in the US. It looks likea joke when you tell us that European election systems allow worse people to get in power.
In many countries no single person could even get as much power as he got, nowadays.
And this boom takes out just 70 tons of plastic per year and costs multiple millions. Seriously?
I am talking about the probiotic yoghurt and the one with El Casei cultures. They claim to be healthy for the gut without real proof.
I once made sourdough bread myself and added more of the starter culture to the dough than you normally would, since I just had too much. It turned out to be pretty sour. But what was really interesting: when the bread got older it never grew mould as it normally does. Instead it just got even more sour over time. The environment of the dough did not permit mould to grow, even after the initial organisms were killed by baking.
I'm fully in with your love on fermented food. I am from Germany. We have the well-known Sauerkraut. The proper one is fermented; you have to check the ingredient list though to see if it is, of they add an acid instead of just salt it probably isn't fermented.
Also we always have sourdough bread, which is also the result of fermentation. There was the same issue in the past, that some tried to replace the fermentation process by adding an acid instead, but no one liked it. Of course not, the sour taste is just a side effect of the fermentation. What makes us like it is the partial digestion of the food by bacteria or yeast, which for example breaks up the long chains of starch into easier digestible shorter carbohydrates.
Well, in these two foods the microorganisms are clearly not getting into our intestine, since they die during cooking and baking. In other foods a few might survive somehow, but still I don't believe that the organisms themselves have any relevance for our intestine.
The fermenting organisms create environments where other, possibly harmful organisms can't survive. Maybe it's the composition of these environments that has a positive effect on us.
I think probiotics in capsules are something completely different. The capsules are resistant to the acids of the stomach, they are only dissolved by the enzymes in the intestine. So the bacteria get placed right where they should be, and it is a defined selection of them.
What seems crazy to me is to try to replace that with fermented food. You don't know what bacteria you have and most of them won't make it to the intestine anyway.
This is just crazy. You don't know what kind of bacteria is in this food. And most bacteria in our food are killed by the acids in our stomach.
I don't know why they even list yoghurt in the summary. If it contains probiotics they will probably not make it to the intestine. They put them in just four advertisement, afaik they have no proven effect.
Decontamination would not have been possible if they were exposed to radiation levels that killed so quickly
That still does not make it a radiation-linked death. It may be linked to the nuclear accident, but not to the radiation.
As I understand it they are not undermining the president though. They cover some of his mistakes. So they make him look better and avoid the escalation towards invoking the 25th Amendment. They help Trump to stay in his position, avoid the ultimate fail of the Republicans, and the government crisis that would paralyze the US for months.
What's the hurdle here though, for a conveyor in space? Ok, low temperature might be an issue
It's pretty much an SUV. Tesla does not sell SUVs, right? For that kind of car the acceleration is very good.
Ok, sounds really great for vehicles. They just have to make sure that the laser beam isn't scattered so much that it becomes visible. This would point right to the vehicle's position.
Solar cells are probably lighter than a battery for even a few minutes, if they use enough laser power density. And this can fly forever. Though I also wonder, what for, with this limited range.
Well, the viscosity of water is low, but not zero. So the friction does not really go to zero. Compared to friction in air it is still quite high.
I don't see any advantage in case-sensitive identifiers. I started without it, in Pascal, and it is just more natural and avoids lots of trouble. You can just use identifiers like spoken words, not worrying which word in it starts with a capital or not. To distinguish types from variables just add a t in front.
I don't know, but I would really worry about the electromagnetic intereference when that capacitor discharges through that floodlight.
I think the old style flash is worse than a phone in flight mode