Finally, I understand.....

[tjmangum]

LTG is my favorite guitar forum, but I often stop by AGF to get a different take on things acoustic. Sometimes things get a bit too serious though - Here's part of a discussion on the affect of the size of sound holes on an acoustic top.

:? :? :? :?
tj

 

[taabru45]

So that also tells you when the pizzas' done? :? Steffan

 

[Ian]

Actually that equations wrong should be r2/V :shock:

 

[Dr. Spivey]

I hope the test is multiple choice. :?

 

[Dubbaround]

I go there as well, and one of these days....one of them chuckleheads will devide by zero...and then we're all foooked.

 

[West R Lee]

I could've told you that tj......sheesh!

West

 

[tjmangum]

I could've told you that tj......sheesh!

West

Sometimes those discussions remind me of a story about the first time Ted Williams met Mickey Mantle. Ted had studied and analyzed hitting to the nth degree. He started asking Mantle about his stance, his grip, the angle of his swing, on and and on. Mantle politely listened and then said, "I don't know about any of that. I just get up and hit it."

 

[fronobulax]

I wonder if this should be cross-posted to the Algebra thread? :wink:

 

[cjd-player]

I wonder if this should be cross-posted to the Algebra thread? :wink:

GOODNESS NO !!!
That would make it a simultaneous equation. :shock: :shock:

 

[chazmo]

I love the AGF. Sometimes those discussions are riotous.

Oh, and by the way, did you guys know that 5th degree polynomial equations have no general solution?! (I spent a year in college proving that)

 

[fronobulax]

I love the AGF. Sometimes those discussions are riotous.

Oh, and by the way, did you guys know that 5th degree polynomial equations have no general solution?! (I spent a year in college proving that)

Wikipedia[/url]]In 1824, Niels Henrik Abel proved the striking result that there can be no general (finite) formula, involving only arithmetic operations and radicals, that expresses the roots of a polynomial of degree 5 or greater in terms of its coefficients (see Abel-Ruffini theorem).

"Those who do not study the past are doomed to repeat it" or does your college experience predate 1824?

 

[valleyguy]

Can we get back to discussing guitars now? :?

 

[chazmo]

I love the AGF. Sometimes those discussions are riotous.

Oh, and by the way, did you guys know that 5th degree polynomial equations have no general solution?! (I spent a year in college proving that)

Wikipedia[/url]]In 1824, Niels Henrik Abel proved the striking result that there can be no general (finite) formula, involving only arithmetic operations and radicals, that expresses the roots of a polynomial of degree 5 or greater in terms of its coefficients (see Abel-Ruffini theorem).

"Those who do not study the past are doomed to repeat it" or does your college experience predate 1824?

Sometimes it feels like it, Frono!

Yeah, this was the amazing, really bizarre theorem that I spent my entire senior year working to understand. Group theory, ring theory, and a bunch of other little mathematical diversions ending up with a class of 2 math majors and I working with the prof. by the end of the year to really comprehend the proof. It was mind expanding and ridiculous, abstract fun.

It's crazy, but sometimes I do miss college.

And, sure, valleyguy... how else can we apply abstract algebra to the problems of guitar design?

 

[adorshki]

It was mind expanding and ridiculous, abstract fun.

It's really simple actually. You need space to measure a location. You need time to measure speed. But time IS space. So you can only measure one at a time, speed or location..
I figured that out once on an acid trip. :lol:
Oh waitaminnit, that's on a different thread. I'm in the wrong classroom! :lol:

 

[GardMan]

Actually, I recently realized that the soundhole on my G-37 is larger in diameter than on all my other dreads (which look about equal, tho' I haven't actually measured).

 

[adorshki]

I for sure remember reading once that soundhole size can be counter-intuitive, that bigger might not neccessarily be louder, rather there's an ideal relationship between top area and soundhole area and body shape and depth. Or is that what that equation said?

 

[chazmo]

It was mind expanding and ridiculous, abstract fun.

It's really simple actually. You need space to measure a location. You need time to measure speed. But time IS space. So you can only measure one at a time, speed or location..
I figured that out once on an acid trip. :lol:
Oh waitaminnit, that's on a different thread. I'm in the wrong classroom! :lol:

Yeah, but Physics is just Math anyway. Chemistry, however, affects perception and is thus closer to Psychology.

 

[cjd-player]

I for sure remember reading once that soundhole size can be counter-intuitive, that bigger might not neccessarily be louder, rather there's an ideal relationship between top area and soundhole area and body shape and depth. Or is that what that equation said?

Sound hole size doesn't significantly effect volume. Volume comes mainly from the size and bracing of the top. The sound hole size and location effect the resonant frequency of the guitar body. I believe that the equation relates to the resonant frequency. All other things being equal, a larger sound hole results in stronger treble response from the guitar, and a smaller sound hole results in a stronger bass response from the guitar.

 

[valleyguy]

All other things being equal, a larger sound hole results in stronger treble response from the guitar, and a smaller sound hole results in a stronger bass response from the guitar.

Wow, that is counter intuitive. Lower frequencies have longer waves, thus you would think that a smaller hole would not allow those frequencies to escape from inside.

 

[taabru45]

It was mind expanding and ridiculous, abstract fun.

It's really simple actually. You need space to measure a location. You need time to measure speed. But time IS space. So you can only measure one at a time, speed or location..
I figured that out once on an acid trip. :lol:
Oh waitaminnit, that's on a different thread. I'm in the wrong classroom! :lol:

So that means that kids really have to ask 2 seperate questions, when they ask 'Are we there yet'... :? and there might be somt truth to 'Wherever you go.....there you are.' :wink: or 'I can't be in two places at the same time.' now I don't even know if there are 'two places' or just one big place... and if its moving....no place??? :? I'm so confused. I need some coffee.....I think its over there......... :lol: Steffan