BS: What Do Physicists Think About? II

Subject: RE: BS: What Do Physicists Think About? II
From: Bill D
Date: 07 Apr 02 - 10:26 PM

however, the author of the page pleads that links to it go through the home page so that he gets credit....so...click on the old pedants site, won't you?

Subject: RE: BS: What Do Physicists Think About? II
From: Amos
Date: 07 Apr 02 - 10:41 PM

Ok, ok!! I said jive meaning jibe!! But how come mister pedant doesn't know the sailor's definition for jibing (crossing the wind with the stern, a sometimes risky manuver)? Huh?

Dern knowitalls know more'sn me!! :>)) Doncha hate it when that happens? :>)

A

Subject: RE: BS: What Do Physicists Think About? II
From: Bill D
Date: 07 Apr 02 - 10:46 PM

who knows, perhaps he does!.....you could write him a smart-alec(k) letter, but beware!...he has all sorts of warnings about that!

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 08 Apr 02 - 06:51 AM

reminds me of the constipated mathmatician - who worked it out with a pencil.

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 09 Apr 02 - 12:17 AM

Physics

Just like musicians think of MUSIC - DUh!

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 10 Apr 02 - 12:03 AM

Quantum approaches can explain enigmatic features of consciousness. However quantum coherent states must be isolated or shielded from environmental interactions and thermal noise which cause "decoherence". Critics of quantum approaches to consciousness point out that the "warm, wet and noisy" brain milieu would be particularly unfriendly to delicate quantum coherent states.

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 10 Apr 02 - 12:37 AM

I doubt that a physicist dreamt up that nonsense. What's a quantum approach? Quanta of what? What's a delicate and indelicate quantum state? Coherent states don't last forever in any kind of field that can change energy, elecrical, magnetic, gravitional.

Subject: RE: BS: What Do Physicists Think About? II
From: Amos
Date: 10 Apr 02 - 01:09 AM

Besides, why would you couple consciousness with the brain? That's kind of like believing that the telephone has all these different voices inside it somewhere!! And you can measure it, too!!

A

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 10 Apr 02 - 10:53 PM

Nice one Amos. LMAO

Subject: RE: BS: What Do Physicists Think About? II
From: Amos
Date: 10 Apr 02 - 11:43 PM

A flashing new insight from the current edition of Nature joournal. I am not prepared to comment on its far-reaching impications! :>)

A change in 'symmetry' is often observed when matter undergoes a phase transition—the symmetry is said to be spontaneously broken.

The transition made by underdoped high-transition-temperature (high-Tc) superconductors is unusual, in that it is not a mean-field transition as seen in other superconductors. Rather, there is a region in the phase diagram above the superconducting transition temperature Tc (where phase coherence and superconductivity begin) but below a characteristic temperature T* where a 'pseudogap' appears in the spectrum of electronic excitations.

It is therefore important to establish if T* is just a cross-over temperature arising from fluctuations in the order parameter that will establish superconductivity at Tc (refs 3, 4), or if it marks a phase transition where symmetry is spontaneously broken. Here we report that, for a material in the pseudogap state, left-circularly polarized photons give a different photocurrent from right-circularly polarized photons.

This shows that time-reversal symmetry is spontaneously broken below T*, which therefore corresponds to a phase transition.

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 11 Apr 02 - 12:03 AM

There goes quantum efficiency as a scalar quantity.

Subject: RE: BS: What Do Physicists Think About? II
From: GUEST
Date: 17 Apr 02 - 11:28 PM

Nothing - we think - Nothing

Subject: RE: BS: What Do Physicists Think About? II
From: The Pooka
Date: 18 Apr 02 - 10:21 PM

Guest - LOL! Yeah, ya do, don'tcha? I've got a whole big book about Nothing, by K.C. Cole. 'Course she's not exactly a Physicist -- science correspondent for the LA Times -- but she'll surely do until one comes along. Anyway, she has a Friend who really is one. She says so, repeatedly. Saaay, would that be yerself now, Guest? :)

Well, as K.C. says -- thanks for Nothing! (Me, I don't even comprehend my Electrolux. Probably why I never use it. But you guys keep on Thinking, OK? It's important.)