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11 minutes ago, biosailor said:

Nevertheless, it‘s an interesting site full of great links!

 

Yes, I've always thought since I ran across it years ago that it's an autodidact's heaven that I'd like to take advantage of when I retire.


One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> eero Pro router -> EtherREGEN -> microRendu -> USPCB -> ISO Regen (powered by LPS-1) -> Ghent JSSG360 USB cable -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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8 hours ago, Jud said:

Here's a scientist who could look scornfully at mere amateurs, and instead tells them how to gain more insight into what they love

 

That's why he is a professor!  (and I'm not LOL)  And that is a perfect essay to provide to young people.  Sure, we continue to learn but in different ways.  We all also mentor at times.  Some times, you do have to weigh the investment versus the expected results.

 

I do wonder, however, if he has ever really had to produce a work product other than some open ended research into the vast unknown.  That's an easy life.  And, you have a lot of time to be philosophical.

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30 minutes ago, Solstice380 said:

@biosailor If you live in a college town just go to the book store and get a slightly older used PHY101 textbook.  You'll remember enough of the basics from your schooling to start there.


Thanks for for the tip! But why a slightly older text book? Do you refer to my age 😂?

 

BTW nice boat you‘re sailing!

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2 hours ago, biosailor said:

Since my recent retirement, I thought I finally want to understand what all those audio specialists mean by filters, sampling, transfer functions, fourier transformation and what not.

 

Yep, my thinking exactly!

 

And even a failed attempt would be hella interesting, I think.


One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> eero Pro router -> EtherREGEN -> microRendu -> USPCB -> ISO Regen (powered by LPS-1) -> Ghent JSSG360 USB cable -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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1 hour ago, Solstice380 said:

 

I do wonder, however, if he has ever really had to produce a work product other than some open ended research into the vast unknown.  That's an easy life.

 

My supposition would be that an extra measure of rigor is needed for research into "the vast unknown." I remember the smartest guy I've ever known personally, a childhood friend who's now an astrophysicist with experiments on the Hubble and a publications list longer than both arms, shaking his head with a rueful grin after a semester at Princeton and saying to me "I found out I'm no theorist."

 

t'Hooft pretty much invented renormalization. https://en.m.wikipedia.org/wiki/Renormalization

 

I'm guessing that was hard work.


One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> eero Pro router -> EtherREGEN -> microRendu -> USPCB -> ISO Regen (powered by LPS-1) -> Ghent JSSG360 USB cable -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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2 hours ago, biosailor said:


Thanks for for the tip! But why a slightly older text book? Do you refer to my age 😂?

 

BTW nice boat you‘re sailing!

 

LOL we may be near the same age! (turned 60 in December, here)  As newer text books have come out, many in the first year science topics have been able to take advantage of tools (computers, etc.) that weren't readily available before so they jump over some of the "ease your way in" explanations of  fundamental phenomena.  Any way you go you can't lose when you learn something!

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1 hour ago, Jud said:

My supposition would be that an extra measure of rigor is needed for research into "the vast unknown."

 

And much of it is pure speculation based on erroneous earlier assumptions and whole careers are wasted chasing unicorns.  Then along comes an Einstein or Hawking and re-calibrates everybody and the herd is off on the next chase.  Thankfully along the way a small (albeit very small) percentage of ideas and theories become corroborated (e.g. Higgs Boson).   It is very hard and requires extreme rigor because it's all abstract until you can build a Hadron Collider!!!

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20 minutes ago, Solstice380 said:

 

And much of it is pure speculation based on erroneous earlier assumptions and whole careers are wasted chasing unicorns.  Then along comes an Einstein or Hawking and re-calibrates everybody and the herd is off on the next chase.  Thankfully along the way a small (albeit very small) percentage of ideas and theories become corroborated (e.g. Higgs Boson).   It is very hard and requires extreme rigor because it's all abstract until you can build a Hadron Collider!!!

 

Book that may interest you:

 

https://www.amazon.com/gp/aw/d/B0763L6YR7/ref=tmm_kin_title_0?ie=UTF8&qid=&sr=


One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> eero Pro router -> EtherREGEN -> microRendu -> USPCB -> ISO Regen (powered by LPS-1) -> Ghent JSSG360 USB cable -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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54 minutes ago, Samuel T Cogley said:

 

That's fundamental.  Humankind wouldn't have survived if it was literally "every man for himself".   If it was, the women would kill the men and cut of their "juevos" to keep the sperm.  tha's all they "need".  LOL

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36 minutes ago, Solstice380 said:

 

That's fundamental.  Humankind wouldn't have survived if it was literally "every man for himself".   If it was, the women would kill the men and cut of their "juevos" to keep the sperm.  tha's all they "need".  LOL

 

Thanks, but wouldn't you agree that competition is to a large extent, "baked in" to Western culture?

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1 hour ago, biosailor said:

So, after gnawing some transfer functions and filter responses, hop on a boat and life becomes very easy!

A sail boat can be seen as a control system with feedback loops and filters with various transfer functions.

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Just now, mansr said:

A sail boat can be seen as a control system with feedback loops and filters with various transfer functions.


For sure! I tried to model the movement of a sailboat through the water with MATLAB. Complicated!!!

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biosailor - a good mathematics/physics text book to start with would be the Berkeley books series - that is what I used as a young physics major back in the Late Holocene.  You can stop with the sophomore sequence - Jr. year was quantum theory, not needed for audio.

 

Richard Feynmann's first 2 volumes are really interesting to read, but I found it hard to learn physics from them.  He taught at CalTech, so likely just assumed everybody would figure out the physics on their own.

https://www.feynmanlectures.caltech.edu/

 

Another approach would be to go thru the physics textbooks that engineering students use.  In their physics courses, a simpler more conceptual approach is used (tho not the guff you find in physics for poets classes) so it ill be a lot easier (leading to many jokes about lookup tables).  Holliday & Resnick is an older one (we called it Holiday and Redneck).

 

Finally, re sailboats, you might find it fun to look at the literature on fluid dynamics - you can stop in the 1930s as the work went into supersonics at that point.


"The overwhelming majority [of audiophiles] have very little knowledge, if any, about the most basic principles and operating characteristics of audio equipment. They often base their purchasing decisions on hearsay, and the preaching of media sages. Unfortunately, because of commercial considerations, much information is rooted in increasing revenue, not in assisting the audiophile. It seems as if the only requirements for becoming an "authority" in the world of audio is a keyboard."

-- Bruce Rozenblit of Transcendent Sound

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36 minutes ago, Ralf11 said:

a good mathematics/physics text book to start with would be the Berkeley books series - that is what I used as a young physics major back in the Late Holocene.  You can stop with the sophomore sequence - Jr. year was quantum theory, not needed for audio.

Actually, do read a bit about quantum theory. Then you'll see that the "explanations" offered by Shunyata and that lot are utter nonsense.

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6 minutes ago, mansr said:

Actually, do read a bit about quantum theory. Then you'll see that the "explanations" offered by Shunyata and that lot are utter nonsense.


Reference to such explanations offered by Shunyata? Synergistic is known for “quantum” stuff but hadn’t seen Shunyata.


One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> eero Pro router -> EtherREGEN -> microRendu -> USPCB -> ISO Regen (powered by LPS-1) -> Ghent JSSG360 USB cable -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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9 minutes ago, mansr said:

Actually, do read a bit about quantum theory. Then you'll see that the "explanations" offered by Shunyata and that lot are utter nonsense.

I've never heard of Shunyata. In my opinion the conventional 'Copenhagen' interpretation of quantum theory seems pretty suspect and the 'de Broglie/Bohm' non local pilot wave interpretation seems more likely to correspond to reality to me.  So as an amateur I like reading up on pilot wave theory.


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