John Curl's Blowtorch preamplifier part II

Status
Not open for further replies.
Member
Joined 2002
Paid Member
Apparently the earth oscillates at 54Hz and the moon 15Hz but the earth has too much noise to be useful.

Weber’s estimation for resonance freq due to GW:
Earth:0.0003086Hz
Moon:0.0011111Hz

The best derivation of noise in mechanical and electrical systems from first principles I have seen.
https://www.amazon.com/Fundamentals-Interferometric-Gravitat-Peter-Saulson/dp/9810218206

Thanks.
You will be interested in this one too
Quantum Enhancement of a 4 km Laser Interferometer | Sheon S. Y. Chua | Springer

(good for Jacco’s sleepless nights)

>edit: A freely available one
http://www.slac.stanford.edu/cgi-wrap/getdoc/ssi98-005.pdf

George
 
A little more 'sofisticated'....

rene pogel.jpg

Dan.
 
Daryl Groom, who was the winemaker at Penfolds and later moved to California, introduced me to the sparkling Shiraz genre, which was as deplorable as I had expected. :D While I was tasting my first one, he was grinning and cackling, "Thet one's eh real leg spreduh!" This must have been 1998 or so, so I'm guessing that's a common phrase in the wine industry there.
 
At Grgich Hills in Napa, the tour guide told us that the expression at UC Davis's Viticulture & Enology department was "L.P.R."

Liquid Panty Remover.

She said that when we were tasting Grgich's "Violetta" late-harvest wine. We bought 12 bottles.

Wow such professionalism, I don't think I ever found a late harvest CA wine that had any merit beyond immediate gratification.
 
In DBTs all wines tasted the same... especially if they are the same type and color...

I've seen ones in which wine tasters couldn't tell red from white ie a white wine was dyed red and the trainee tasters (shortly before qualifying) harped on about non-existing tannins.

In another demonstration a group of people tastes some red wines.
All agreed in their individual descriptions of the wines, one was 'fruity', 'light' and 'ideal for summer' and another 'heavy', with 'hints of cinnamon', 'ideal for christmas'. That kind of thing.
Turns out it was all the same wine and they merely changed the conditions under which the test was taken. Most of it was just simply changing the colour and intensity of the light in the room but to change from fruity and light to heavy and cinnamon they wrapped the tasters in a blanket and lit a candle.


But in the end sighted wine tasting is just about as valuable as sighted HiFi evaluation.
 
Yet if you can't do that properly under blind conditions, you can't achieve any of the certifications, nor can you qualify as a wine competition judge.

There seems to be no equivalent for audio reviewers, and of course absolutely zero controls, which is why those chimps keep cranking out the fulsome nonsense that they do.
 
Member
Joined 2002
Paid Member
Resonance has nothing to do with the stimulus.

Scott as I understand it:
The degree of coupling between body mass and gravitational waves as well as the direction of induced stresses is affected by field properties, the body’s geometry and it’s orientation in the field

As for the word ‘resonance’ I used, my apologies.
I should better have written ‘ strain frequency’ instead of ‘resonance frequency’ for the case of Earth and Moon. ‘resonance frequency’ is applicable to be used for the artificial resonant-mass detectors (bars or spheres) only.
In any case, ‘frequency’ of the excited body is dictated mainly by body mass.
That’s why I find the frequencies you posted questionable not only as both being too high but also because earth’s frequency is shown higher than moon’s (while earth is of a larger mass than moon)
(See attachment for Weber’s words)

Some of Weber's stuff went off into a personal issue.

Reading his biography, I can’t blame him at all. Considering what he dealt with, he behaved OK .

Now, after all that has been done, it is feasible to redraw the scene.
Please read sections 5.3 & 5.4 of this very good review paper
http://www.slac.stanford.edu/gen/meeting/ssi/1998/media/saulson.pdf


As far as I can tell he never fully disclosed the details of his mechanisms which is a red flag to me.

The fact that many institutions went to replicate those costly experiments tells me otherwise.

Then it is his sited publications.
Only the last two are freely accessible. There are many public libraries that have access to these two periodicals, you may read these and find out yourself.

Phys. Rev. 117, 306 (1960) - Detection and Generation of Gravitational Waves
Phys. Rev. Lett. 17, 1228 (1966) - Observation of the Thermal Fluctuations of a Gravitational-Wave Detector
Phys. Rev. Lett. 18, 498 (1967) - Gravitational Radiation
Phys. Rev. Lett. 20, 1307 (1968) - Gravitational-Wave-Detector Events
Phys. Rev. Lett. 22, 1320 (1969) - Evidence for Discovery of Gravitational Radiation
pdf: http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.22.1320
Phys. Rev. Lett. 25, 180 (1970) - Anisotropy and Polarization in the Gravitational-Radiation Experiments
pdf: http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.25.180


Scott you had mentioned in the past something about conformance to dress protocol while you were invited at LIGO site. Read this and enjoy

Then, ten years passed before Warren Johnson, who had already moved to LSU (from Rochester), revived Forward’s
idea in 1988. In 1989, LSU presented it at GR12, in Boulder, Colorado [120, 121]. It would have been nice if NSF had supported a spherical antenna project at that time(1989). I personally talked to Richard Isaacson about this at the conference cocktail,who acknowledged that a GW spherical antenna was an old idea (I will never forget that he was wearing Bermudas, black shoes, and black socks). Unfortunately this was another brilliant American idea along with Fairbank’s ultra-low temperature bar, neither of which was ever implemented in USA.

Quote from https://arxiv.org/ftp/arxiv/papers/1009/1009.1138.pdf section 7
(some astronomically high mechanical Q figures and some abysmally low thermal noise figures reported as achieved in this paper that I have linked to again)

George
 

Attachments

  • mass.PNG
    mass.PNG
    116.3 KB · Views: 165
Status
Not open for further replies.