There are some contribution from the real part of the radiation
impedance as well as the measurement part of the radiation impedance.
Okay.
That's pretty interesting, so
let's summarize what we learned today, okay.
I argued that understanding breathing sphere and
trembling sphere certainly make a foundation
to understanding to understand for
example general scattering radiation,
even diffraction.
And I demonstrate using Korean And
other musical instrument, in Korea we call it [FOREIGN]
And I should demonstrate how it radiates.
And the radiation depends on the angle.
Later on by studying the Sphere case we will understand
the interactivity later on.
So you experience the directivity pattern and
then I move on to the, to get the solution of mono,
a braiding sphere, by introducing with the velocity potential,
the reason why we use the velocity
potential is theoretically It is a simpler,