Appro pos your red underlined bit, typical of people that make their mark in society then use that to propound their pet theories. People like Bertrand Russell come to mind and the Bloomsbury set. But venality? rather a strong word even in that context. But it was Adam Smith.
Nobel Prize-winning economist Joseph E. Stiglitz says, on the topic of one of Smith's better known ideas: "the reason that the invisible hand often seems invisible is that it is often not there.
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now
Oh dear me, we are back to Mike's bucket depository and alternative energy source again :-))
Towit, I present for your delectation, and enjoyment the following.
Existing atomic clocks could help test for exotic form of dark matter Topological defects in the Universe itself could be picked up by atomic clocks.
Well not a very conclusive statement!
Most scientists who work on dark matter have become convinced that it's made up of WIMPs,
Lovely, couldn't have put it better myself!
One of the more bizarre ideas is that the Universe itself is filled with what are called topological defects; areas where the Universe's quantum fields haven't reached the same state as the field in which our normal physics operates. In mathematics, topology is concerned with the properties of space that are preserved under continuous deformations, such as stretching and bending, but not tearing or gluing.
In other words we don't have the faintest idea what we are talking about but it sounds techy, so what the heck, and it pays the rent.
Now, a group of Polish researchers has calculated that the search for this form of dark matter requires nothing more than a few clocks. Very accurate atomic clocks, but clocks nevertheless.
Defies comment ....
Further Reading - Exploring the monstrous creatures at the edges of the dark matter map
Don't read this before you go to bed.
He became Ars Technica's science editor in 2007 after spending 15 years doing biology research
Oh well that is all right then, highly qualified to comment upon the science of the universe, matter/antimatter, and atomic clocks. But I'm sure he is kind to his mother and animals.
Mike & I sing from the same hymn sheet.
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now
The bit that is missed is really simple : where is your comparison/control case ? That is, what universe without topological defects are you going to compare to ? Otherwise you will not be able to disambiguate their hypothesis from the remaining blizzard of boring/simpler reasons that an atomic transition may glitch. Comparing different clocks in the same universe doesn't help and oh, by the way, that quantum vacuum mentioned has fluctuations anyway ( that varies spatially with or without "a phase-noise-compensated optical fibre link of a length comparable to the size of the Earth" ). Now the clue is in this statement :
Quote:
.... improvement in the limits we place on topological defects .....
This is not proof/detection of defects but upper bounding their size on the assumption that they exist at all ie. how small they would need to be to escape detection. Not driving that limit down does not detect the topological defects .... what is needed is the 'inverse stencil' mechanism. If anything this is the aether hypothesis redux ie. the vacuum has markings .......
Cheers, Mike.
( edit ) Did no-one spot that "phase-noise-compensated" clock connections begs the very question asked ??
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
That is, what universe without topological defects are you going to compare to ?
Well exactly! We don't understand the one we live in without searching for parallel ones to compare ours with. And even then we don't know if our universe is really the only one or not. A lot of this stuff is people proposing theories and hypotheses that cannot be proved nor disproved, but remain just a possibility, but takes nobody any further forward.
The job of pseudo scientific hacks is to take a highbrow scientific paper or dialogue and present it in laymans terms with a catchy headline. But most times they either misrepresent the matter or make ludicrous claims. And a lot of this stuff is garnered from PhD students final thesis's which haven't been fully peer reviewed anyway.
Did no-one spot that "phase-noise-compensated" clock connections begs the very question asked ??
Sorry no I didn't :-(
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now
Did no-one spot that "phase-noise-compensated" clock connections begs the very question asked ??
Sorry no I didn't :-(
Phase noise = timing errors, so if I compensate-for/remove-that then I've deleted the very signal I'm looking for ie. the timing glitches of interest.
The outcome tree for such an experiment goes as follows :
(I) - we couldn't drive the noise down and so (a) we are crap in our technique and/or (b) we can make no comment about defects. OR .....
(II) - we could drive the noise down and so place an upper bound on defect strength.
So there is no outcome which says 'we found a defect !' because you can't go below zero/baseline to know ( tell the difference between )
- what is a random vacuum fluctuation within a defect-less universe versus ...
- what is a defect driven timing glitch, never to be repeated because you cannot re-run time in a single universe !
Jeez Louise I hope these people never go rabbit shooting : they'd hand the guns to the bunnies and then wonder why they got wounded by the little hoppy guys .....
Cheers, Mike.
( edit ) Sheesh, what next ? Giving Kalashnikovs to kangaroos ..... I'm going to go and watch videos of computer controlled lathes ..... :-)
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
That is, what universe without topological defects are you going to compare to ?
Well exactly! We don't understand the one we live in without searching for parallel ones to compare ours with. A lot of this stuff is people proposing theories and hypotheses that cannot be proved nor disproved, but remain just a possibility, but takes nobody any further forward.
That's like saying we don't understand men so let's go explore women and then we can explain men. NO it just explains the differences and the samenesses, not the actual men or women.
Quote:
The job of pseudo scientific hacks is to take a highbrow scientific paper or dialogue and present it in laymans terms with a catchy headline. But most times they either misrepresent the matter or make ludicrous claims. And a lot of this stuff is garnered from PhD students final thesis's which haven't been fully peer reviewed anyway.
Molecular
Molecular chirality
http://www.rowland.harvard.edu/rjf/fischer/background.php
perhaps the weak force escapes?
Appro pos your red underlined
Appro pos your red underlined bit, typical of people that make their mark in society then use that to propound their pet theories. People like Bertrand Russell come to mind and the Bloomsbury set. But venality? rather a strong word even in that context. But it was Adam Smith.
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now
Synchronise your watches,
Synchronise your watches, it's time for more science! :)
Annie minion :)
Einstein@Home Verified Contributor (I think?)
Oh dear me, we are back to
Oh dear me, we are back to Mike's bucket depository and alternative energy source again :-))
Towit, I present for your delectation, and enjoyment the following.
Existing atomic clocks could help test for exotic form of dark matter
Topological defects in the Universe itself could be picked up by atomic clocks.
Well not a very conclusive statement!
Most scientists who work on dark matter have become convinced that it's made up of WIMPs,
Lovely, couldn't have put it better myself!
One of the more bizarre ideas is that the Universe itself is filled with what are called topological defects; areas where the Universe's quantum fields haven't reached the same state as the field in which our normal physics operates.
In mathematics, topology is concerned with the properties of space that are preserved under continuous deformations, such as stretching and bending, but not tearing or gluing.
In other words we don't have the faintest idea what we are talking about but it sounds techy, so what the heck, and it pays the rent.
Now, a group of Polish researchers has calculated that the search for this form of dark matter requires nothing more than a few clocks. Very accurate atomic clocks, but clocks nevertheless.
Defies comment ....
Further Reading - Exploring the monstrous creatures at the edges of the dark matter map
Don't read this before you go to bed.
He became Ars Technica's science editor in 2007 after spending 15 years doing biology research
Oh well that is all right then, highly qualified to comment upon the science of the universe, matter/antimatter, and atomic clocks. But I'm sure he is kind to his mother and animals.
Mike & I sing from the same hymn sheet.
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now
The bit that is missed is
The bit that is missed is really simple : where is your comparison/control case ? That is, what universe without topological defects are you going to compare to ? Otherwise you will not be able to disambiguate their hypothesis from the remaining blizzard of boring/simpler reasons that an atomic transition may glitch. Comparing different clocks in the same universe doesn't help and oh, by the way, that quantum vacuum mentioned has fluctuations anyway ( that varies spatially with or without "a phase-noise-compensated optical fibre link of a length comparable to the size of the Earth" ). Now the clue is in this statement :
This is not proof/detection of defects but upper bounding their size on the assumption that they exist at all ie. how small they would need to be to escape detection. Not driving that limit down does not detect the topological defects .... what is needed is the 'inverse stencil' mechanism. If anything this is the aether hypothesis redux ie. the vacuum has markings .......
Cheers, Mike.
( edit ) Did no-one spot that "phase-noise-compensated" clock connections begs the very question asked ??
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
That is, what universe
Well exactly! We don't understand the one we live in without searching for parallel ones to compare ours with. And even then we don't know if our universe is really the only one or not. A lot of this stuff is people proposing theories and hypotheses that cannot be proved nor disproved, but remain just a possibility, but takes nobody any further forward.
The job of pseudo scientific hacks is to take a highbrow scientific paper or dialogue and present it in laymans terms with a catchy headline. But most times they either misrepresent the matter or make ludicrous claims. And a lot of this stuff is garnered from PhD students final thesis's which haven't been fully peer reviewed anyway.
Sorry no I didn't :-(
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now
Chris S_2 wrote: Did no-one
Phase noise = timing errors, so if I compensate-for/remove-that then I've deleted the very signal I'm looking for ie. the timing glitches of interest.
The outcome tree for such an experiment goes as follows :
(I) - we couldn't drive the noise down and so (a) we are crap in our technique and/or (b) we can make no comment about defects. OR .....
(II) - we could drive the noise down and so place an upper bound on defect strength.
So there is no outcome which says 'we found a defect !' because you can't go below zero/baseline to know ( tell the difference between )
- what is a random vacuum fluctuation within a defect-less universe versus ...
- what is a defect driven timing glitch, never to be repeated because you cannot re-run time in a single universe !
Jeez Louise I hope these people never go rabbit shooting : they'd hand the guns to the bunnies and then wonder why they got wounded by the little hoppy guys .....
Cheers, Mike.
( edit ) Sheesh, what next ? Giving Kalashnikovs to kangaroos ..... I'm going to go and watch videos of computer controlled lathes ..... :-)
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
Chris S_2 wrote: That is,
That's like saying we don't understand men so let's go explore women and then we can explain men. NO it just explains the differences and the samenesses, not the actual men or women.
Exactly!!
Mike Hewson wrote: .... what
I read awhile ago of some guy (way back) that thought that some kind of 'Swirling Currents' was
what guided the planets around in there orbits. Apparently Newton was at odds with this guy.
This same guy (forgot name) ridiculed Newton's assertion that gravity affected things far away .....
Bill
.
Sheesh, what next ?
Nope, nutters in the UK looking for new £5 notes with AK47 serial numbers. Yeah ok, same thing really......
Oh no better than that, try this one of a comp controlled milling m/c making a V8 engine block!
https://www.youtube.com/watch?v=QsmiIeAkE-o
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now