In the bullet cluster the stars passed right through each other as well it is only the dust clouds in the galaxies that really exchanged momentum. So extra brown dwarfs as dark matter probably isn't in conflict with the bullet cluster.
As you point out BBN and CMB measurements do suggest that dark matter in non-baryonic. Another one to add to that list is structure formation, the large structures of the universe would be very different if the dark matter was baryonic.
Well theres neutrino oscillations, g-2 of the muon, baryogenisis, dark matter, dark energy and inflation to name a few.
Then there is the hierarchy problem and flavour problems which aren't experimental observations so you might not want to count them and thats not even touching the problem of trying to get a consistent theory for the standard model and gravity together.
Yes it would mean there is half as much dark matter in the milky way as we previously would have thought but then there's half as much normal matter as well so you get the same ratio. Of course this has no impact on the total dark matter budget of the universe so it doesn't really have any bearing on our understanding of dark matter.
You should never take the logarithm of a dimensionful quantity like seconds. Clearly some choice of units is implied and really we should have log(t/1s) or log(t/1ms) or something which would then make the score unitless.
You need learn to cut through the hocus pocus and analyze the actual underlying equation before the Oz Sauce is ladeled on. You can well imagine that those who actually understand programming metrics are holding their sides laughing at those who are taking it seriously.
and you need to go take some remedial math lessons if you think log(0) = 1.
Were you going for ironic with that post? They do a study into how people ignore scientific evidence in favour of reinforcing their own beliefs. You then ignore the result and choose to continue with your own predefined belief that the fault lies with religion.
A version of the Legend of Mir server was leaked/stolen. It was the complete server program (I'm not sure if the source code was stolen too) and that allowed completely private servers to work with the existing client. These servers could then change the stats on items, change what mobs spawned where and create new mobs. I'm not sure how difficult it would have been or if it was possible to create new maps and graphics etc without other tools.
You have a telescope that receives light from a distant object. At first:
-you don't know what it is made of
-you don't know how far away it is
-and you don't know how fast its relative motion is
How can you use red shift to predict relative motion? A shift implies a motion, and you don't know where it is moving from.
How can you make any prediction about composition if you can't be sure of the shift?
How can you make and prediction about distance if you are making up numbers about the previous two?
I've got to read a book or two on cosmology sometime. I suspect there is a lot of 'splaining left out.
And I would expect the oldest galaxies to have the least amount of hydrogen left, having had stars burning it the longest.
It goes like this:
You use epctral analysis to determine what its made of by looking for known patterns in the spectrum of the light
You measure the redshift, to estimate the distance you either guess the absolute magnitude (which can often be done with gallaxies to at least give an upper limit) or you use hubbles law and assuming you have a good value of hubbles parameter you can convert red shift to distance. This is a bit circular and relies on you allready having found the distance of lots of objects without having to resort to this.
The redshift gives the relative motion and can be measured very acuratly and very easily.
You can tell the composition beofer you know the shift in fact you use the composition you get the shift.
While your not making up the numbers of the previous two it is worth pointing out that the distance measurement is not independent in some cases so you have to be very carefull the measurement of distance may be relying on your cosmological assumptions. Not all distance measurements are like this but the further back you go the harder it is to get a an independent measurement.
If you read a couple of books on cosmology most will cover these very basic principles any explaining left out will be in the larger more advanced books on cosmology.
Remember telescopes look back in time, these gallaxies are the ones that formed earliest.
There is, that's why they tested it against placebo. If they had tested it against taking nothing they would have found ginkgo (or the placebo) improved memory.
Forcing people to do everyday tasks in a computer game may not be original but that doesn't mean that it can't be artistic. That's a bit like saying that Sunflowers doesn't count as art because people had painted pictures of flowers before.
How about a system where all legal aid is supplied say by the state. This could then be combined with a form of "loser pays" or giving the legal representation for free. Essentially everyone would then get the same lawyers no matter who they are, the number and quality of the lawyers given to both sides could be decided based on the importance of the case to society.
I think the drawbacks to such a system are pretty obvious, you put all of the legal power in the hands of the state and it would cost everyone in taxes but there might be something to it.
The particle is to all intents a point like object so doesn't have a length to contract, in the case of an object with length then yes both frames see the other as contracted.
Special relativty is completely self conistent in a mathematical view point. From a physical one it can get confusing I would suggest looking up the ladder "parradox" as one such example.
One way to simplify matters is to write down all of the space-time cooridinates of events in you problem in one frame, then peform lorentz boosts to get the result in the other frame and measure lengths etc in that frame rather than applying the time dilation and length contraction formulae blindly
The particle would not see its own time-dilation so to speak, in the particles rest frame it still decays very quickly and the length contraction then allows it to travel further. From the lab frame the particle is time dilated so decays slowly but the lab equipment is not length contracted in that frame so there are no length contraction effects.
Also with particle accelerators it is very much the energy of the collision that matters, as the particles velocity increases pushing it with more energy actually only increases the speed by a very little amount since it can nevery be greater than c, you can however keep increasing the energy of the particle.
Umm well kind of, its an experiment to confirm the existence of the higgs if it does exist and to probe the physics of electroweak symmetry breaking (i.e find whatever else is causing the higgs mechanism) if it doesn't. I mean determining that the existence of a higgs particle is an accurate theory is the same as determining its existence give or take some philisophical arguments about existance.
What is the difference between a mathematical concept representing or reflecting something physical and a mathematical concept that is used as a tool in a physical model?
Seems to me if you're using them in your physical theory then they have as much of a physical role (I'm not saying that they have to correspond to some observable quantity though) as say a symmetry group or any other mathematical object you use.
By the way, I know this because I'm French, I was born in France, and I've lived part of my life in France. Except that you are not right, and I am a french, I have lived there 25+ years. The only point where you are right is that we do not have "freedom of speech" as open and unbound as the US, but we *DO* have a liberty of expression.
If you speech isn't open and unbounded does that make it compact?
Its well known that the strong force is much stronger than the electromagnetic interaction it also has a much better symmetry group SU(3) which is way cooler than U(1) electromagnetism isn't even special!!!
Once you include the strong force into your calculations its obvious that the universe is at least 100x older than current cosmological predictions and you dont even need the higgs or neutrinos in the model since these havn't really been detected I mean you've never seen one have you?
There's a reason that the strong force is allways ignored, its because it doesn't fit with a passage in the Koran which states that the standard model should contain only symmetries with fewer than 8 generators because the "physics community" is secretly run by an organisation bent on keeping this truth from us they completely ignore the strong force claiming that it doesn't effect gallaxy formation and that quarks are confined when really jesus was made of quarks therefor the great flood happened!!
How is the overwhelming evidence for dark matter gathered in the last few decades ignoring the last 60 years?
Its not like there hasn't been plenty of research into general relativity and gravity in the last 60 years but as far as I know general relativity is still the best model for gravity with some serious work to be done to build a quantum theory of gravity.
Seriously? darkmatter has been theoriticaly predicted and experimentaly detected in three observations at three largely different scales. Your two options with the observation is to change newtowns and einsteins laws of gravitation so that they fit these results and get left with seriously fudged laws of gravity (I'm not even sure if anyone managed to do this in a consistent way) or you infer the pressence of dark matter, which given our understanding of particle physics is highly plausable that such matter can exist and some of our best new theories to solve other problems in physics even go on to predict such a particle.
If you want to troll about how "mainstream science" is like some kind of cult pick an area of research that is'nt backed up with excellent experimental observation.
Not decay annihilation, the WIMP has to be stable and so not decay otherwise we'd have none left by now. What they are hoping to detect is when two WIMPs annihilate and form a ??????? that then decays and emits the radiation they are detecting.
"I'm operating from the assumption that an Indian is just as valuable as an American"
Not if your an American....not if you are a US citizen and wanting a home and to feed your family. At that point...you don't give a flying fuck about giving your job to 2 people abroad.
It is one thing to give and care about others in the world, but, rarely is someone altruistic enough to do so at the expense of their quality of life.
Well that's fine from your american point of view, globaly though it is a good thing. The difference here is that from an exterior objective point of view it makes sense that two people having a job is better than one however nobody is really in that position the world works by looking out for your own first which means that in reality one american is more important than two foreigners (if you're american). This is just selfishness and self preservation but its hardly going to go away.
The problem comes when the people running their companies decide they actually care about an even smaller group of people (themsleves) even more than they do about their neighbours and that they can make more money by out sourcing at the expense of their country. Really though the logic as to why outsourcing for them is a good thing is the same as why its a bad thing for you so complaining that people need to look after themselves actually just leads to more outsourcing.
If it was just a placebo effect then why bother with the pot at all there would be much easier ways to administer it so really if it's being perscribed its almost certainly doing better than placebo in trials.
As for reviewing it medicinal pot unlike a pill like vicodin is not allways going to be the same, it will come in different strengths, taste different, give different highs (side effects I guess) and this can not and is not tested and controlled in the same way that every vicodin pill is exactly the same. So in that respect reviewing is useful.
There is a difference in that Dirac's treatment of the electron for quantum mechanics actually predicited the positron, the equations wouldn't work without it. Magnetic monopoles fall more into a "wouldn't it be neat if..." but are not actually required for electromagnetism to work. Where as positrons and antimatter HAVE to exist if you want a reletavistic quantum theory.
yes but relativistic quantum mechanics is fine:-P, as a particle physicist personally I take the view that gravity is being down right unreasonable by not being a nicely renormalisable quantum field theory on flat space.
I'm not going to type a lengthy description of how modern medicine works, if you dont know maybe you should find out rather than making stuff up. Suffice to say doctors cure lots of things. I dont see what medicines being derived from plants has to do with anything.
For your arguments against medicines not working as well as placebo, thats the entire fucking point of this argument. You test your treatment and then use the ones that actually work and work better than a placebo. Side effect management and treatment choice are then an individual choice as to weither your better off with the treatment or not. And once again alternative therapies are not risk and side effect free and neither are placebos.
Slashdot Mirror
In the bullet cluster the stars passed right through each other as well it is only the dust clouds in the galaxies that really exchanged momentum. So extra brown dwarfs as dark matter probably isn't in conflict with the bullet cluster.
As you point out BBN and CMB measurements do suggest that dark matter in non-baryonic. Another one to add to that list is structure formation, the large structures of the universe would be very different if the dark matter was baryonic.
Well theres neutrino oscillations, g-2 of the muon, baryogenisis, dark matter, dark energy and inflation to name a few.
Then there is the hierarchy problem and flavour problems which aren't experimental observations so you might not want to count them and thats not even touching the problem of trying to get a consistent theory for the standard model and gravity together.
Yes it would mean there is half as much dark matter in the milky way as we previously would have thought but then there's half as much normal matter as well so you get the same ratio. Of course this has no impact on the total dark matter budget of the universe so it doesn't really have any bearing on our understanding of dark matter.
You need learn to cut through the hocus pocus and analyze the actual underlying equation before the Oz Sauce is ladeled on. You can well imagine that those who actually understand programming metrics are holding their sides laughing at those who are taking it seriously.
and you need to go take some remedial math lessons if you think log(0) = 1.
Were you going for ironic with that post? They do a study into how people ignore scientific evidence in favour of reinforcing their own beliefs. You then ignore the result and choose to continue with your own predefined belief that the fault lies with religion.
A version of the Legend of Mir server was leaked/stolen. It was the complete server program (I'm not sure if the source code was stolen too) and that allowed completely private servers to work with the existing client. These servers could then change the stats on items, change what mobs spawned where and create new mobs. I'm not sure how difficult it would have been or if it was possible to create new maps and graphics etc without other tools.
I felt worse remembering
IDSPISPOPD
Despite not knowing what it stood for until checking it just now.
I'm confused.
You have a telescope that receives light from a distant object. At first:
-you don't know what it is made of
-you don't know how far away it is
-and you don't know how fast its relative motion is
How can you use red shift to predict relative motion? A shift implies a motion, and you don't know where it is moving from.
How can you make any prediction about composition if you can't be sure of the shift?
How can you make and prediction about distance if you are making up numbers about the previous two?
I've got to read a book or two on cosmology sometime. I suspect there is a lot of 'splaining left out.
And I would expect the oldest galaxies to have the least amount of hydrogen left, having had stars burning it the longest.
It goes like this:
You use epctral analysis to determine what its made of by looking for known patterns in the spectrum of the light
You measure the redshift, to estimate the distance you either guess the absolute magnitude (which can often be done with gallaxies to at least give an upper limit) or you use hubbles law and assuming you have a good value of hubbles parameter you can convert red shift to distance. This is a bit circular and relies on you allready having found the distance of lots of objects without having to resort to this.
The redshift gives the relative motion and can be measured very acuratly and very easily.
You can tell the composition beofer you know the shift in fact you use the composition you get the shift.
While your not making up the numbers of the previous two it is worth pointing out that the distance measurement is not independent in some cases so you have to be very carefull the measurement of distance may be relying on your cosmological assumptions. Not all distance measurements are like this but the further back you go the harder it is to get a an independent measurement.
If you read a couple of books on cosmology most will cover these very basic principles any explaining left out will be in the larger more advanced books on cosmology.
Remember telescopes look back in time, these gallaxies are the ones that formed earliest.
There is, that's why they tested it against placebo. If they had tested it against taking nothing they would have found ginkgo (or the placebo) improved memory.
Forcing people to do everyday tasks in a computer game may not be original but that doesn't mean that it can't be artistic. That's a bit like saying that Sunflowers doesn't count as art because people had painted pictures of flowers before.
How about a system where all legal aid is supplied say by the state. This could then be combined with a form of "loser pays" or giving the legal representation for free. Essentially everyone would then get the same lawyers no matter who they are, the number and quality of the lawyers given to both sides could be decided based on the importance of the case to society.
I think the drawbacks to such a system are pretty obvious, you put all of the legal power in the hands of the state and it would cost everyone in taxes but there might be something to it.
The particle is to all intents a point like object so doesn't have a length to contract, in the case of an object with length then yes both frames see the other as contracted.
Special relativty is completely self conistent in a mathematical view point. From a physical one it can get confusing I would suggest looking up the ladder "parradox" as one such example.
One way to simplify matters is to write down all of the space-time cooridinates of events in you problem in one frame, then peform lorentz boosts to get the result in the other frame and measure lengths etc in that frame rather than applying the time dilation and length contraction formulae blindly
The particle would not see its own time-dilation so to speak, in the particles rest frame it still decays very quickly and the length contraction then allows it to travel further. From the lab frame the particle is time dilated so decays slowly but the lab equipment is not length contracted in that frame so there are no length contraction effects.
Also with particle accelerators it is very much the energy of the collision that matters, as the particles velocity increases pushing it with more energy actually only increases the speed by a very little amount since it can nevery be greater than c, you can however keep increasing the energy of the particle.
Umm well kind of, its an experiment to confirm the existence of the higgs if it does exist and to probe the physics of electroweak symmetry breaking (i.e find whatever else is causing the higgs mechanism) if it doesn't. I mean determining that the existence of a higgs particle is an accurate theory is the same as determining its existence give or take some philisophical arguments about existance.
What is the difference between a mathematical concept representing or reflecting something physical and a mathematical concept that is used as a tool in a physical model?
Seems to me if you're using them in your physical theory then they have as much of a physical role (I'm not saying that they have to correspond to some observable quantity though) as say a symmetry group or any other mathematical object you use.
By the way, I know this because I'm French, I was born in France, and I've lived part of my life in France. Except that you are not right, and I am a french, I have lived there 25+ years. The only point where you are right is that we do not have "freedom of speech" as open and unbound as the US, but we *DO* have a liberty of expression.
If you speech isn't open and unbounded does that make it compact?
Its well known that the strong force is much stronger than the electromagnetic interaction it also has a much better symmetry group SU(3) which is way cooler than U(1) electromagnetism isn't even special!!!
Once you include the strong force into your calculations its obvious that the universe is at least 100x older than current cosmological predictions and you dont even need the higgs or neutrinos in the model since these havn't really been detected I mean you've never seen one have you?
There's a reason that the strong force is allways ignored, its because it doesn't fit with a passage in the Koran which states that the standard model should contain only symmetries with fewer than 8 generators because the "physics community" is secretly run by an organisation bent on keeping this truth from us they completely ignore the strong force claiming that it doesn't effect gallaxy formation and that quarks are confined when really jesus was made of quarks therefor the great flood happened!!
How is the overwhelming evidence for dark matter gathered in the last few decades ignoring the last 60 years?
Its not like there hasn't been plenty of research into general relativity and gravity in the last 60 years but as far as I know general relativity is still the best model for gravity with some serious work to be done to build a quantum theory of gravity.
Seriously? darkmatter has been theoriticaly predicted and experimentaly detected in three observations at three largely different scales. Your two options with the observation is to change newtowns and einsteins laws of gravitation so that they fit these results and get left with seriously fudged laws of gravity (I'm not even sure if anyone managed to do this in a consistent way) or you infer the pressence of dark matter, which given our understanding of particle physics is highly plausable that such matter can exist and some of our best new theories to solve other problems in physics even go on to predict such a particle.
If you want to troll about how "mainstream science" is like some kind of cult pick an area of research that is'nt backed up with excellent experimental observation.
Not decay annihilation, the WIMP has to be stable and so not decay otherwise we'd have none left by now. What they are hoping to detect is when two WIMPs annihilate and form a ??????? that then decays and emits the radiation they are detecting.
"I'm operating from the assumption that an Indian is just as valuable as an American"
Not if your an American....not if you are a US citizen and wanting a home and to feed your family. At that point...you don't give a flying fuck about giving your job to 2 people abroad.
It is one thing to give and care about others in the world, but, rarely is someone altruistic enough to do so at the expense of their quality of life.
Well that's fine from your american point of view, globaly though it is a good thing. The difference here is that from an exterior objective point of view it makes sense that two people having a job is better than one however nobody is really in that position the world works by looking out for your own first which means that in reality one american is more important than two foreigners (if you're american). This is just selfishness and self preservation but its hardly going to go away.
The problem comes when the people running their companies decide they actually care about an even smaller group of people (themsleves) even more than they do about their neighbours and that they can make more money by out sourcing at the expense of their country. Really though the logic as to why outsourcing for them is a good thing is the same as why its a bad thing for you so complaining that people need to look after themselves actually just leads to more outsourcing.
If it was just a placebo effect then why bother with the pot at all there would be much easier ways to administer it so really if it's being perscribed its almost certainly doing better than placebo in trials.
As for reviewing it medicinal pot unlike a pill like vicodin is not allways going to be the same, it will come in different strengths, taste different, give different highs (side effects I guess) and this can not and is not tested and controlled in the same way that every vicodin pill is exactly the same. So in that respect reviewing is useful.
There is a difference in that Dirac's treatment of the electron for quantum mechanics actually predicited the positron, the equations wouldn't work without it. Magnetic monopoles fall more into a "wouldn't it be neat if..." but are not actually required for electromagnetism to work. Where as positrons and antimatter HAVE to exist if you want a reletavistic quantum theory.
yes but relativistic quantum mechanics is fine :-P, as a particle physicist personally I take the view that gravity is being down right unreasonable by not being a nicely renormalisable quantum field theory on flat space.
I'm not going to type a lengthy description of how modern medicine works, if you dont know maybe you should find out rather than making stuff up. Suffice to say doctors cure lots of things. I dont see what medicines being derived from plants has to do with anything.
For your arguments against medicines not working as well as placebo, thats the entire fucking point of this argument. You test your treatment and then use the ones that actually work and work better than a placebo. Side effect management and treatment choice are then an individual choice as to weither your better off with the treatment or not. And once again alternative therapies are not risk and side effect free and neither are placebos.