The big LHC switch on

Daniel Michel
Daniel Michel
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RE: It worked great there.

Message 84993 in response to message 84992

Quote:

It worked great there. Now the site says:

 The server encountered an internal error and was unable to complete your request.

Error message:
Premature end of script headers: forum_index.php



Almost thought it said premature end of the world. :-D


That would be the Blue Screen of Death.

Es99
Es99
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I couldn't watch the feed as

I couldn't watch the feed as the site was overloaded. :(

We had to resort to watching Dr Brian Cox again.

Physics is for gurls!

Chris S
Chris S
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I had to use BBC news 24 to

I had to use BBC news 24 to see it live at 9.30AM. Worth it though as a bit of history there....

Waiting for Godot & salvation :-)

Why do doctors have to practice?
You'd think they'd have got it right by now

Jord
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Everyone seen the Google

Everyone seen the Google logo?

If not, here it's saved for eternity:

Mike Hewson
Mike Hewson
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RE: Everyone seen the

Message 84997 in response to message 84996

Quote:

Everyone seen the Google logo?

If not, here it's saved for eternity:

I'd hope the names of those that started the daft law suit are also suitably remembered! Disappointing that the media didn't pick up on the wording of the writ - they wanted to be paid for saving the world.

[philosophic deluded interlude]
Sigh ..... it seems each generation needs to revamp both it's creation myth and it's apocalypse myth. It used to be the Russians when I was a lad, who later turned out to be just like us ( sans propaganda ). Well they are us, simply living in a different place. The deep lesson is that us/them is a false construct which should be destroyed, not the Russians. So with the LHC the worthy question isn't : 'will it destroy us all - yes/no?', but why the hell do we waste our lives listening to such crap? Any of us could throw a stone from where each of us stand right now and hit something worth improving toward the common good. In the first instance probably a window broken by that stone, but you get my drift ..... :-)
[/philosophic deluded interlude]

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

Daniel Michel
Daniel Michel
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RE: RE: Everyone seen the

Message 84998 in response to message 84997

Quote:
Quote:

Everyone seen the Google logo?

If not, here it's saved for eternity:

I'd hope the names of those that started the daft law suit are also suitably remembered! Disappointing that the media didn't pick up on the wording of the writ - they wanted to be paid for saving the world.

[philosophic deluded interlude]
Sigh ..... it seems each generation needs to revamp both it's creation myth and it's apocalypse myth. It used to be the Russians when I was a lad, who later turned out to be just like us ( sans propaganda ). Well they are us, simply living in a different place. The deep lesson is that us/them is a false construct which should be destroyed, not the Russians. So with the LHC the worthy question isn't : 'will it destroy us all - yes/no?', but why the hell do we waste our lives listening to such crap? Any of us could throw a stone from where each of us stand right now and hit something worth improving toward the common good. In the first instance probably a window broken by that stone, but you get my drift ..... :-)
[/philosophic deluded interlude]

Cheers, Mike.


Who knows?...Things may be discovered in this experiment that may save our world in ways we cannot yet understand...It will be a leap forward...How far...we do not know.

tullio
tullio
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Next step forward in the

Next step forward in the "spiral of high energies":
ILC
With apologizes to Angelo Baracca and Silvio Bergia who wrote a book having that title.
Tullio

Chipper Q
Chipper Q
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RE: Next step forward in

Message 85000 in response to message 84999

Quote:
Next step forward in the "spiral of high energies":
ILC


Hi Tullio!
Seems like there are always practical limits to both ends of any spiral trajectory. In the upward spiral of higher energies, is there any reason to expect to observe a fourth generation of matter? Not even from the highest energy cosmic rays? If not, does that not then imply a limit somewhere to the upward spiral of high energies? (I apologize if I've misunderstood the reference)

tullio
tullio
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RE: RE: Next step forward

Message 85001 in response to message 85000

Quote:
Quote:
Next step forward in the "spiral of high energies":
ILC

Hi Tullio!
Seems like there are always practical limits to both ends of any spiral trajectory. In the upward spiral of higher energies, is there any reason to expect to observe a fourth generation of matter? Not even from the highest energy cosmic rays? If not, does that not then imply a limit somewhere to the upward spiral of high energies? (I apologize if I've misunderstood the reference)


They referred to both the spiral trajectories of particles in a cyclotron and the spiraling costs of particle accelerators. They were (and hope still are) elementary particle physicists, and to read their book, published in 1975, you had to know a lot of physics. This is why it was never translated into English, besides the fact that they belonged to the Marxist school of thought. But the same things had been already written by Emilio Segre', certainly not a Marxist, in 1972 on "Endeavour" magazine. So it seems that even LHC does not reach energies high enough to satisfy physicists and they are already looking forward to a bigger machine, which is linear, like the Stanford accelerator, so you don't need supercooled magnets to curve the orbits, only magnets to accelerate the particles. But cosmic rays go to even higher energies and this kind of radiation source, once very popular in Italy since cosmic rays are gratis,is taking off again with large area detectors. One of the merits of cosmic ray physics is that laboratories were high on mountains, like the Testa Grigia Observatory at 3500 m height facing Monte Cervino (Matterhorn). So you could both do research and ski in winter or climb in summer. Happy days!
Tullio
PS For the first time LHC@home has sent me a WU which shall take hours to crunch instead of a few seconds, but I suspect it is just a coincidence. I watched also the Bruce Allen presentation at Grenoble but his slides were difficult to read. From what I heard from him, Einstein@home is going to monitor also binary pulsar systems, and AEI is working with Nvidia to produce applications which make use of graphic GPUs. So I shall have to buy a graphic card for my SUN WS which now has only integrated graphics. I don't run games, and the Microsoft Flight Simulator does not run on Linux.Cheers.

Chipper Q
Chipper Q
Joined: 20 Feb 05
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Ah, I see, thanks Tullio.

Ah, I see, thanks Tullio. Sounds like Testa Grigia is a great place to “catch some rays� :)

But I was wondering more from a theoretical standpoint: if there are only three generations of matter, might that mean that just more copious jets of the same particles in the Standard Model will be formed despite using ever higher accelerator energies? Is there not expected to be a limit, a point of equilibrium (as in 'quark soup'?), where new particles are being formed at the same rate as other particles are decaying? (With the result that adding more energy just shifts the point of equilibrium towards producing more of the same [Standard Model] particles...?)

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