  The $0$ to $R_1$ radial spherical coordinate transformation method can be
making electromagnetic (EM) invisible cloak. However the cloak by
transformation optic has infinite speed and exceeding light speed etc
fundamental difficulties. In this paper, we discover problem on acoustic cloak
by transformation and prove that in the $0$ to $R_1$ radial spherical
coordinate transformation, the pressure wave field $P(r_p)=P(r)$ is invariant,
in the physical inner spherical surface boundary $r=R_1$, $P(R_1)$ is not zero.
the acoustic field propagation penetrate into the inner sphere $r <
R_1$.Therefore, the inner sphere $r < R_1$ can not be cloaked. The GL
simulation figures of the pressure acoustic wave propagation penetrate into the
inner sphere $r \le R_1$ are presented in figure 1 to figure 12.The pressure
wave is setting to zero that cause the scattering wave to disturb incident
pressure acoustic wave outside of the outer sphere $r \ge R_2$ that make the
whole sphere $r \ge R_2$ will be deltected. GL method simulation is presented
in figure 13. we discovered and proved that $0$ to $R_1$ sphere radial
transformation can not be used to induce acoustic no scattering cloak.
