I do not know to much about the subject. But evidence of Dark Matter existence seems indirect by it gravitational effects. For what its worth I get an impression that we don't know as much about gravity as we like to, and maybe other phenomena causes gravitational effects than matter.
There are some who can live without wild things and some who cannot. - Aldo Leopold
I do not know to much about the subject. But evidence of Dark Matter existence seems indirect by it gravitational effects. For what its worth I get an impression that we don't know as much about gravity as we like to, and maybe other phenomena causes gravitational effects than matter.
I've recently read an article on the NASA site that observations made by the Chandra X-ray satellite observatory on galaxies clusters confirm the validity of Einstein's general relativity even at great distances. Then the article did not appear any longer on the NASA site but I believe it can be found on the Chandra site. Here it is: Chandra
Tullio
I do not know to much about the subject. But evidence of Dark Matter existence seems indirect by it gravitational effects. For what its worth I get an impression that we don't know as much about gravity as we like to, and maybe other phenomena causes gravitational effects than matter.
I've recently read an article on the NASA site that observations made by the Chandra X-ray satellite observatory on galaxies clusters confirm the validity of Einstein's general relativity even at great distances. Then the article did not appear any longer on the NASA site but I believe it can be found on the Chandra site. Here it is: Chandra
Tullio
The problem I have is with the Standard Model.. Where is all this anti-matter. The world spends a lot of money looking for particles based on this model.
There are some who can live without wild things and some who cannot. - Aldo Leopold
The problem I have is with the Standard Model.. Where is all this anti-matter. The world spends a lot of money looking for particles based on this model.
AFAIK the physicists at Chicago and Geneva are not looking for dark matter but for particles predicted by the Standard Model and Supersymmetry. Dark matter was introduced by astronomers and elementary particle physicists are rather skeptical about its existence.
Tullio
The problem I have is with the Standard Model.. Where is all this anti-matter. The world spends a lot of money looking for particles based on this model.
AFAIK the physicists at Chicago and Geneva are not looking for dark matter but for particles predicted by the Standard Model and Supersymmetry. Dark matter was introduced by astronomers and elementary particle physicists are rather skeptical about its existence.
Tullio
The problem I am beginning to have with these machines is that we are spending 20 billon dollars on them not to explore but to validate a model. When these machines do not deliver, we tweak the math and spend more gobs of money in attempting to validate that. I do not know in depth the subject. I find the standard model very complex. And if theories explaining nature are complex, they are usually incorrect.
There are some who can live without wild things and some who cannot. - Aldo Leopold
The problem I am beginning to have with these machines is that we are spending 20 billon dollars on them not to explore but to validate a model. When these machines do not deliver, we tweak the math and spend more gobs of money in attempting to validate that. I do not know in depth the subject. I find the standard model very complex. And if theories explaining nature are complex, they are usually incorrect.
Two Italian elementary particle physicists, Angelo Baracca and Silvio Bergia wrote a book in the Seventies expressing the same concern. Its title, "La spirale delle alte energie" referred to the particle's trajectory in cyclotron and the spiraling of both costs and energy in particle accelerators. I don't think it was ever translated in English also because it is a mixture of theoretical physics and marxist philosophy. But Nobelist Emilio Segre' had expressed the same concern in an article published in "Endeavor" magazine in 1972, which I believe no longer exist.
Tullio
The problem I am beginning to have with these machines is that we are spending 20 billon dollars on them not to explore but to validate a model. When these machines do not deliver, we tweak the math and spend more gobs of money in attempting to validate that. I do not know in depth the subject. I find the standard model very complex. And if theories explaining nature are complex, they are usually incorrect.
Two Italian elementary particle physicists, Angelo Baracca and Silvio Bergia wrote a book in the Seventies expressing the same concern. Its title, "La spirale delle alte energie" referred to the particle's trajectory in cyclotron and the spiraling of both costs and energy in particle accelerators. I don't think it was ever translated in English also because it is a mixture of theoretical physics and marxist philosophy. But Nobelist Emilio Segre' had expressed the same concern in an article published in "Endeavor" magazine in 1972, which I believe no longer exist.
Tullio
Well.. You need complex expensive tools to verify complex theories.. If the world has the disposble cash for this physics experiment.
I get the feeling we are not going get a 20 billion dollar return in science on the investment
There are some who can live without wild things and some who cannot. - Aldo Leopold
About 10000 people are involved in LHC experiments and get paid for it. Perhaps elementary particle physics should be called alimentary particle physics. Sometimes I envy them for doing what they like and also getting paid.
Tullio
RE: ... Let's hope it's
)
Simple, shake the box hard. The crowbar inside will crack the box open.
-LD
________________________________________
my faith
RE: Simple, shake the box
)
Doh !!! Well done :-)
Cheers, Mike.
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
An Article in SciAm..
)
An Article in SciAm..
What is Dark Matter
I do not know to much about the subject. But evidence of Dark Matter existence seems indirect by it gravitational effects. For what its worth I get an impression that we don't know as much about gravity as we like to, and maybe other phenomena causes gravitational effects than matter.
There are some who can live without wild things and some who cannot. - Aldo Leopold
RE: An Article in SciAm..
)
I've recently read an article on the NASA site that observations made by the Chandra X-ray satellite observatory on galaxies clusters confirm the validity of Einstein's general relativity even at great distances. Then the article did not appear any longer on the NASA site but I believe it can be found on the Chandra site. Here it is:
Chandra
Tullio
RE: RE: An Article in
)
Thanks tullio,
Here it is (I think)
Einstein's Theory Fights Off Challengers
The problem I have is with the Standard Model.. Where is all this anti-matter. The world spends a lot of money looking for particles based on this model.
There are some who can live without wild things and some who cannot. - Aldo Leopold
RE: Thanks tullio, Here it
)
AFAIK the physicists at Chicago and Geneva are not looking for dark matter but for particles predicted by the Standard Model and Supersymmetry. Dark matter was introduced by astronomers and elementary particle physicists are rather skeptical about its existence.
Tullio
RE: RE: Thanks
)
The problem I am beginning to have with these machines is that we are spending 20 billon dollars on them not to explore but to validate a model. When these machines do not deliver, we tweak the math and spend more gobs of money in attempting to validate that. I do not know in depth the subject. I find the standard model very complex. And if theories explaining nature are complex, they are usually incorrect.
There are some who can live without wild things and some who cannot. - Aldo Leopold
RE: The problem I am
)
Two Italian elementary particle physicists, Angelo Baracca and Silvio Bergia wrote a book in the Seventies expressing the same concern. Its title, "La spirale delle alte energie" referred to the particle's trajectory in cyclotron and the spiraling of both costs and energy in particle accelerators. I don't think it was ever translated in English also because it is a mixture of theoretical physics and marxist philosophy. But Nobelist Emilio Segre' had expressed the same concern in an article published in "Endeavor" magazine in 1972, which I believe no longer exist.
Tullio
RE: RE: The problem I am
)
Well.. You need complex expensive tools to verify complex theories.. If the world has the disposble cash for this physics experiment.
I get the feeling we are not going get a 20 billion dollar return in science on the investment
There are some who can live without wild things and some who cannot. - Aldo Leopold
About 10000 people are
)
About 10000 people are involved in LHC experiments and get paid for it. Perhaps elementary particle physics should be called alimentary particle physics. Sometimes I envy them for doing what they like and also getting paid.
Tullio