dont know yet i think is very interesting,,,
i was studying some acoustics to get rid of some acoustics problems in a small home studio i´m building here to try to get some work and i got faced with again a resonance problem,,
it made me wonder how this could be useful for the water technology understanding and as usual i´m going deep into it
i found that there are different room modes axial tangencial and oblique so a resonant cavity will have different frequencies where its going to resonate depending on the position of the speaker and the room measures..
there are some frequencies that is going to sum and other that will cancel... and for that acoustic treatment is designed, to get rid of the reflections that sustain this standing waves..
its accomplished by using dissipative material that will transform the sound waves in heat.. so the power coming out of the speakers just become heat since what is stop the sound from keep going is the transformation of this displacement of air particles into heat.. but the sound also get destroyed by destructive interference! meaning that when the two waves sum ok they will get twice the amplitude but when they cancel out they simply must disappear. with no heat generated.
(this last part is coming from my understand i didnt read anything to confirm this yet but seems to be the case since the speakers wont heat the room that much without acoustic treatment)
a cube is a resonant cavity and if it has a resonant frequency that is the same in all axis x,y,z this mean that the resonance of the 3 axis combines creating a sound amplitude for this frequency that is much higher than the other frequencies
exiting one mode seems to also trigger the others.,
basically there is 3 standing waves that form one in each axis..
so this got me interested and i started to think
audio range go from meters to centimeters in air.. for example 10khz would be around 3.4 cm
this mean that a box having 3.4 cm measures would resonate at around 10khz and 20khz and so on. and also other frequencies as i mentioned
the second octave creates a pressure node in the center of the box.. so twice the regular resonant cavity of the box it may depend on the speaker position as well
what i mean is that this is the kind of sizes stan used for his things...
i´m wondering if his epg and other stuff was designed to walk on sound waves... in the video of the buggy interview he say that his system needed to compensate for ambient pressure and temperature changes... and this are two things that will take a resonant cavity to deviate from its tuning at standard conditions.
check this room modes calculator online and find out the modes of your rooms... do some tests ... perhaps if we understand the sound waves that are much more audible kkk we can understand a way to put energy out of water...
further: sound waves are longitudinal and as it creates zones of high pressure and low pressure it may be able to bounce the particles back and forth in a dance
further
3 inches is the wave length of 20khz in water...
http://www.1728.org/freqwavf.htmi´m starting to thing that we need magnetic fields or a piezo transducer to play with water more nicely and stimulate and read this resonances of water bros
i wish i had some money to buy some powerful piezos to play and perhaps some to read...
if a magnetic field is present there is movement in the water so the energy can be somehow resonated too..
the plan is a metalic box with the walls insulated from each other forming a resonant tank filled with water that is contained in itself and a small hole for the gas come out....
i need to understand better the properties of this sound waves in tubes for example and how this modes would apply...
but from helmholtz we learn that the stiffness of the air act as a spring and so water not having much stiffness could break?
https://hal.archives-ouvertes.fr/hal-01432223/document