Re: Ruben's tube

You are wrong, as the oscilloscope does not show standing waves. So your reasoning does not make sense.

Hans


LJS wrote:
On Jul 20, 12:17 pm, Hans Aberg <haberg_20080...@xxxxxxxxxx> wrote:
You have misunderstood the oscilloscope, too. Its construction does
neither build on sensing overtone partials, even less harmonies.

Hans

No Hans, you have read more into my statement than is there and made
your own erroneous conclusion. If your oscilloscope does not show the
composite wave formed, including the overtones, of an inputted
frequency then you either don't understand what I said or you don't
know what to look for. You can also tune tones visually if you put the
fundamental on one axis and the other tone to be added in composite as
you build a tone in the other axis. This causes a closed wave with
loops that show the ratios and the relative amplitude as they are
combined.

But back to the statement. I know you are not very big on context, but
in this case the phrase "composite of the various ratios" makes a big
difference in meaning.

LJS




LJS wrote:
On Jul 20, 3:15 am, Hans Aberg <haberg_20080...@xxxxxxxxxx> wrote:
It does not have anything with harmonics to do. One just gets a standing
wave with high and low pressures depending on the frequency of the
sound. But if a Just chord is played and held, perhaps one gets a nice
repetitive pattern.
Hans
GeF wrote:
Funky harmonics dance
I also guess that this might be the reason why we take the 5th as the
dominate from the root. In term of harmonic the firth comes right after the
second harmonic. Then come the third.
A fiery musical experiment:
http://www.youtube.com/user/twinrawk
I would think that the only reason that you would not see the Harmonic
Series (as there certainly were harmonics in the music, each and every
melodic note had harmonics) is that the series would be enclosed
within each vibration unit and the resolution of the gas burner
openings is not high enough to see them. If it were, you would see the
composite of the various ratios just as you would on an oscilloscope.
The amazing thing to me about this experiment is that this is a
mechanical oscilloscope! This is the surprising thing to me. It is the
first time I have seen it demonstrated in this manner. I had
considered the possibility of visualizing water waves in some manner
that would demonstrate this sort of thing but never considered that
fluids can be gases as well as liquids.
Now I am wondering if prevailing winds blowing across a desert would
somehow create the sand dunes in some related type of pattern. lol
LJS

.

Relevant Pages

  • Re: Rubens tube
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  • Re: Rubens tube
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  • Re: Rubens tube
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  • Re: Rubens tube
    ... neither build on sensing overtone partials, ... composite wave formed, including the overtones, of an inputted ... fundamental on one axis and the other tone to be added in composite as ... Series (as there certainly were harmonics in the music, ...
    (rec.music.theory)