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57 messages

BS: Finding the Q spot

26 Dec 04 - 11:15 PM (#1364797)
Subject: BS: Finding the Q spot
From: GUEST,Richard H

I was practising a newly-acquired soprano sax this morning and hit a rather impressive high D which I sustained.

Suddenly there was a terrific explosion in the kitchen. A one-pint glass had shattered into little pieces none bigger than 1/4 inch. My wife says the individual fragments continued to vibrate furiously for a while afterwards.

I've heard of shattering glass with your voice and found the following on the Net: "The likelihood of the glass shattering increases with the Q value for the resonance of interest. You can tell what the resonant frequencies are by just hitting the glass with a fork (I do this at parties all the time) and the Q value would be determined by the length of time the tone the glass makes takes to decay till you cannot hear it any more."

I know about the G-spot on a soprano (that's where Kenny plays) but don't have a clue about Q value or resonance of interest.

The glass hadn't been in a microwave and was last used about 2 hours before. It had no cracks or chips.

Could the sax have shattered it?


26 Dec 04 - 11:21 PM (#1364802)
Subject: RE: BS: Finding the Q spot
From: mack/misophist

I know of one other case where the same thing happened. You're guilty as charged.


27 Dec 04 - 01:05 AM (#1364834)
Subject: RE: BS: Finding the Q spot
From: GUEST

The fact that the glass shattered is due to the fact that the fundamental frequency, or possibly one of the overtones, of the note played by the sax is equal to the mechanical resonance frequency of the glass (or at least damn close to it). So, the soundwaves travelled through the air from the sax to the glass and set the glass to vibrating at its resonant frequency which means that the motion of the glass continues to build as it is stimulated until it comes unglued.

The Q factor is the Quality factor of the glass. This is a measure of the sharpness of the resonant frequency. High Q means a sharp resonance which responds to a narrow range of frequencies but gives a bigger response if stimulated in that range. Low Q means that the range is wider but the response is less.

Had enough? If not, click.

Bev and Jerry


27 Dec 04 - 05:05 AM (#1364897)
Subject: RE: BS: Finding the Q spot
From: Mr Red

FWIW

Glass is not a solid. It may look like a hard shiny surface to you and if hit it will shatter.   So will toffee and tar. It is all a question of temperature.

Glass has no latent heat of fusion, it is what those in know call a supercooled liquid. This may have some bearing on the effect - so will the surface tension that builds-up when it is so far below its pliable temperature.

Not a lot of people know that.........


27 Dec 04 - 05:25 AM (#1364911)
Subject: RE: BS: Finding the Q spot
From: gnu

I've felt shattered after sax before.


27 Dec 04 - 05:26 AM (#1364912)
Subject: RE: BS: Finding the Q spot
From: fat B****rd

Wow ! I've heard of 14 miles on a clear night ....but several feet in a KITCHEN !!
Sidney Bechet would be proud of ya.


27 Dec 04 - 06:01 AM (#1364932)
Subject: RE: BS: Finding the Q spot
From: GUEST,Obie

Someone just had to say this:
"People who live in glass houses shouldn't play (sax) phones!"


27 Dec 04 - 06:07 AM (#1364934)
Subject: RE: BS: Finding the Q spot
From: Peace

Sympathetic Vibration Physics

Google that, SVP.


27 Dec 04 - 06:52 AM (#1364953)
Subject: RE: BS: Finding the Q spot
From: Georgiansilver

The fact is that everything solid has its own frequency and if that frequency is reached sonically something will happen to it..even shattering. When someone scratches their fingernails down a blackboard...what does it make us feel....they are reaching our frequency and our brains react by making us cover ears etc. This phenonenom was used to torture prisoners in the Second world war and subsequent wars by means of electronic equipment.....Nasty devices.
Best wishes.


27 Dec 04 - 07:05 AM (#1364964)
Subject: RE: BS: Finding the Q spot
From: Peace

I wonder if I'm shattering amoeba when I run my fingers down the whiteboard?


27 Dec 04 - 07:35 AM (#1364978)
Subject: RE: BS: Finding the Q spot
From: Allan C.

Sounds as though you weren't practicing safe sax.


27 Dec 04 - 07:59 AM (#1364989)
Subject: RE: BS: Finding the Q spot
From: The Fooles Troupe

This is of course the reason that only crappy glassware survives. All the good quality stuff...


27 Dec 04 - 08:05 AM (#1364991)
Subject: RE: BS: Finding the Q spot
From: Peace

OK. You guys have opened this can of worms. Am I going to be the first guy to say what he thought this thread was REALLY about? Guess so, huh?


27 Dec 04 - 08:16 AM (#1364996)
Subject: RE: BS: Finding the Q spot
From: GUEST,shycat

here you go brucie


27 Dec 04 - 08:25 AM (#1364998)
Subject: RE: BS: Finding the Q spot
From: Peace

Thank you, shycat. Very much.

BM


27 Dec 04 - 09:08 AM (#1365018)
Subject: RE: BS: Finding the Q spot
From: Georgiansilver

Thanks for the website shycat......Ever listened intently to the Beachboys "Good vibrations"....we also use the expression "Good or bad vibes" to describe feelings about others..mmmmm, now is there something in that?
Best wishes.


27 Dec 04 - 09:38 AM (#1365033)
Subject: RE: BS: Finding the Q spot
From: Bill D

after viewing that website, I found my ethereal cosmic consciousness had been transduced into a state of boundless disrhambic chakras, vibrating in harmonious conjunction with acoustic fields derived from channeling Edgar Cayce while listening to the Beach Boys in a geodesic dome inside a pyramid which had been oriented toward the confluence of spiritual energies emanating from celestial manifestations of massed sensory nodes inherently located within my own attempts at focused spiritual enlightenement.

What a revelation!


27 Dec 04 - 10:15 AM (#1365068)
Subject: RE: BS: Finding the Q spot
From: GUEST

I like "G" better than "Q".

Dave Oesterreich


27 Dec 04 - 10:30 AM (#1365077)
Subject: RE: BS: Finding the Q spot
From: Peace

Dave, that's what I thought it was about. Now Bill's channeling Edgar Cayce (and probably Jeanne Dixon), the Beach Boys (and probably the Rolling Stones played backwards), and now the gates of Hell may open when he gets to Mother's Little Helper. He's speaking in tongues (because I don't think what he wrote above is English), and the whole known universe could be in real trouble here. I mean, the only thing worse is getting your electricity supplier mad at you when they make a mistake on your billing and tell you you owe $739,421.93 on your November bill and they don't want to hear that you didn't use that much electricity in your two-bedroom house with no cyclotron in the basement.

John had his John had revelation and now Bill's having one, too. It's time to get a little nervous here.

BM


27 Dec 04 - 10:36 AM (#1365082)
Subject: RE: BS: Finding the Q spot
From: Georgiansilver

I thought it appeared that Bill was a little inebriated with his own verbosity and wondered if he was insinuating that we should tolerate such diabolic literacy from his personage. If so his presuptions could be precisely incorrect.
Bill you are seriously an artist with words.
Best wishes, Mike.


27 Dec 04 - 10:37 AM (#1365083)
Subject: RE: BS: Finding the Q spot
From: Peace

" John had his John had revelation and now Bill's having one, too. It's time to get a little nervous here."

s/b John had his revelation and now Bill's . . . .


27 Dec 04 - 10:59 AM (#1365099)
Subject: RE: BS: Finding the Q spot
From: Bill D

georgiansilver..I lugubriously remonstrate your felicitations with ALL due concatenations...

but I must confess that my revelations have been seriously confabulated by a good dose of Epsom salts.


27 Dec 04 - 11:07 AM (#1365103)
Subject: RE: BS: Finding the Q spot
From: John MacKenzie

2-4-6-8 Time to transubstantiate.

T Lehrer


27 Dec 04 - 11:13 AM (#1365108)
Subject: RE: BS: Finding the Q spot
From: Peace

"I lugubriously remonstrate your felicitations"

I ain't gonna tell you guys what this sounds like.


27 Dec 04 - 11:28 AM (#1365119)
Subject: RE: BS: Finding the Q spot
From: Bill D

good thing I didn't confess that I gesticulate while I masticate.


27 Dec 04 - 11:34 AM (#1365124)
Subject: RE: BS: Finding the Q spot
From: diesel

Hi

My tuppence worth is that the Q in frequency is not the quality of the glass (as in Bev's and Jerry's above) but is the efficiency of the delivery of the frequency.

We see it (Q) being used to develop Rf systems in plasma and communications generation and how it applies to transmission of a frequency into a load such as an aerial for broadcast or a chamber for plasma generation etc. In practical terms the higher the Q value (through some maths that I don't understand) the more efficient the delivery of the frequency.

If the frequency you were playing was poor or varied, the build up of harmonics in the glass would have been inhibited or at best - varied, but as the delivery was more efficient, the harmonics developed were sustained long enough to shatter the glass by basically vibrating it to bit's.
A note - if the glass was cracked it may have been more difficult to shatter due to the crack interferring with the resonations.


Diesel


27 Dec 04 - 11:40 AM (#1365127)
Subject: RE: BS: Finding the Q spot
From: Peace

Bill, does your wife know about this?


27 Dec 04 - 12:21 PM (#1365153)
Subject: RE: BS: Finding the Q spot
From: Georgiansilver

I had suspected that you(like many others of us)Bill, are a masticator
a fact which I will chew over in my mind before the regurgitation of any further vocabulary on the subject.
Mutual mastication is something I have been involved in over Christmas which was wonderful I have to say......with all the trimmings of course.
Best wishes, Mike.


27 Dec 04 - 12:42 PM (#1365165)
Subject: RE: BS: Finding the Q spot
From: Bill D

I suspect that you refer to group convivial familial mastication...as 'mutual' would suggest there being only two involved.


27 Dec 04 - 12:51 PM (#1365170)
Subject: RE: BS: Finding the Q spot
From: GUEST,Spot Checking

and I thought the Q spot was the Queer's erogenous homolog to a woman's G spot.


27 Dec 04 - 06:20 PM (#1365421)
Subject: RE: BS: Finding the Q spot
From: Peace

Out, damn Spot!


27 Dec 04 - 07:19 PM (#1365472)
Subject: RE: BS: Finding the Q spot
From: Bev and Jerry

Diesel:

We did not mean to say that Q is the quality of the glass. It's the "quality factor" of the resonance curve of the item made out of the glass.

We also are more familiar with "Q" in electrical terms but it has an analogous meaning in mechanical terms. We have no idea why it's called "quality factor" but it is.

Bev and Jerry


27 Dec 04 - 10:40 PM (#1365573)
Subject: RE: BS: Finding the Q spot
From: GUEST,Richard H

Listen up, you people. I'm into goats for a living. But play a lot of music on the side. It means a lot to me, especially sax.

Before this happened, my wife enjoyed me taking out my gleaming 27 inch long soprano and performing lustily. Now she's scared stiff.

The replies above are great but a bit above goat-farming level.

The point is, my sax life has been shattered. And I need fellow-musicians to come to my rescue and state unequivocally (if that's the right word) that I could NOT have wrecked that glass.

I mean, I sometimes play in high-class hotels. Can you imagine what would happen if Tony Blair (who comes our way now and then) was having a drink and BOOM!!?


28 Dec 04 - 01:18 AM (#1365639)
Subject: RE: BS: Finding the Q spot
From: The Fooles Troupe

people would say...

"Missed him by That Much!"


28 Dec 04 - 01:27 AM (#1365646)
Subject: RE: BS: Finding the Q spot
From: Bev and Jerry

Sorry, Richard. You not only could have shattered that glass, you probably did. Of course it could have been aliens.

Bev and Jerry


28 Dec 04 - 01:44 AM (#1365647)
Subject: RE: BS: Finding the Q spot
From: Stilly River Sage

The frequency and delivery efficiency of sax to my resonant curve sure makes a difference to the G spot in this alto, so I assume it works for sopranos also!

too bad there isn't an emoticon for a brutally wicked grin!


28 Dec 04 - 05:19 AM (#1365711)
Subject: RE: BS: Finding the Q spot
From: diesel

Richard - the glass wouldn't have shattered unless it wanted to, did it want to ? If so, you couldn't have done it - you were playing at the time and nowhere near it when it happened. Plead innocent ! As shaggy said - it wasn't me !

Diesel

(Point taken Bev+Jerry, thanks ;-))


28 Dec 04 - 05:24 AM (#1365715)
Subject: RE: BS: Finding the Q spot
From: John MacKenzie

I waited!! Nobody said it!! Why does it always have to be me??

Richard; that was some blow job!!

Giok


28 Dec 04 - 05:28 AM (#1365720)
Subject: RE: BS: Finding the Q spot
From: fat B****rd

What is a soprano sax doing on a Folk/Blues website ???. Then again, what am I doing on a Folk/Blues website.


28 Dec 04 - 08:26 AM (#1365820)
Subject: RE: BS: Finding the Q spot
From: Mr Red

Q is all about transferrence of energy, at resonant frequencies Q is measured in Electrical terms as the ratio of "current in" (parallel ccts) to circulating current. There is preferrential gain in the frequency domain. Max gain and resonant frquency differ by a factor which also determines the value of Q - the losses in effect. In mechanical terms it is movement, move glass too far and it breaks.

Dave Oesterreich

in answer to your "likes" - is it because you can get a tune from G and only harmonies from Q's?

Barbershop anyone?

#8^)


28 Dec 04 - 11:58 AM (#1365962)
Subject: RE: BS: Finding the Q spot
From: GUEST,Spot Checking

From a 1st graders' New Age sex education/reading Primer.

See Jane. See Dick. See Spot.
Jane, see Dick? Dick, see Jane's G-Spot? See Spot, come Spot.
Big-O!

Spot-On!

PS. Q-Spot is covered in 2nd Grade, during round-robin PC discussions.

School days, school days, dear old "Golden Rule" days


28 Dec 04 - 12:11 PM (#1365968)
Subject: RE: BS: Finding the Q spot
From: Stilly River Sage

Spot Checking has picked up on the resonance of the thread, which is not remotely subtle, but has started waving flags. He needs to masticate this a while and come up with something good enough to blow his own horn about.


28 Dec 04 - 01:10 PM (#1366019)
Subject: RE: BS: Finding the Q spot
From: John MacKenzie

Ah the joys of being double jointed!
Giok


28 Dec 04 - 04:27 PM (#1366164)
Subject: RE: BS: Finding the Q spot
From: Cluin

Watch out for the "Brown Note".


28 Dec 04 - 07:08 PM (#1366327)
Subject: RE: BS: Finding the Q spot
From: GUEST,ex-flex

Giok: Being double-jointed has little to do with certain abilities, but being young and thin does. Such memories.


28 Dec 04 - 07:37 PM (#1366352)
Subject: RE: BS: Finding the Q spot
From: The Fooles Troupe

"round-robin PC discussions."

Look, just leave me out of this, OK?


29 Dec 04 - 12:44 AM (#1366517)
Subject: RE: BS: Finding the Q spot
From: GUEST,Spot Checking

Stilly River Sage you are one bright, brave lady with a very good sense of humor.

Since I am not as bright, and my humor is somewhat "spotty", I will let the rest of you ponder the real meaning of the Q spot, notwithstanding its potential electrical resonance being inductive or capacitive reactance or neither.

Darn Spot is out.


29 Dec 04 - 02:40 AM (#1366554)
Subject: RE: BS: Finding the Q spot
From: Stilly River Sage

You're not excluded at all, Spot Checking, you got it right, but you are encouraged to be more sly in your humor! :) Perhaps Lady Jane would like to take up the sax, hmmm? (Beyond Dick and Jane, have you read any chatt[erl]y books lately?)


29 Dec 04 - 02:54 AM (#1366556)
Subject: RE: BS: Finding the Q spot
From: Stilly River Sage

(P.S. Surprise us all and be a glass act, Spot Checking!)


29 Dec 04 - 03:04 AM (#1366565)
Subject: RE: BS: Finding the Q spot
From: Liz the Squeak

As a soprano, I'd be very interested to hear more about this 'finding the G spot on a soprano'.. I'm available next Monday and Wednesday evening......

LTS (who has never made glass shatter but has broken a few eardrums....)


29 Dec 04 - 09:53 PM (#1367242)
Subject: RE: BS: Finding the Q spot
From: Little Hawk

I heard about a woman whose orgasms would shatter glass objects and cause nearby items to fly off night tables, dressers, etc. It wasn't necessarily the sounds she made, but rather the invisible waves of psychic force she would hurl about at those moments.

It must have been quite something to witness firsthand...

I also feel that I should mention that acute and overly-frequent mastication can cause soreness.


29 Dec 04 - 10:01 PM (#1367254)
Subject: RE: BS: Finding the Q spot
From: Bill D

oh, yes...especially the cute ones!


29 Dec 04 - 10:14 PM (#1367275)
Subject: RE: BS: Finding the Q spot
From: Little Hawk

Anyone who has a serious problem with this should actually consider joining Masticators Anonymous, a 12-step program that can be very beneficial.

The first step is admitting that you have no control over your addiction...


30 Dec 04 - 12:33 AM (#1367367)
Subject: RE: BS: Finding the Q spot
From: Stilly River Sage

yeah. Think of how much faster you could get it down without it (food, that is) . . .


30 Dec 04 - 04:07 AM (#1367434)
Subject: RE: BS: Finding the Q spot
From: Liz the Squeak

In my youth, I once caused objects to break and fly around the room, but I think that was more because we fell off the bed.....

Never could explain that to the landlord.

LTS


30 Dec 04 - 06:34 AM (#1367489)
Subject: RE: BS: Finding the Q spot
From: John MacKenzie

You were in your youth, or your youth was in you? Just the facts Ma'am just the facts.
Giok


30 Dec 04 - 11:10 PM (#1367746)
Subject: RE: BS: Finding the Q spot
From: Stilly River Sage

Chews your facts carefully before presenting them here.