Another Resonance In Cubic Time And Spherical Space

 If we consider, a cube in the time dimension again and a sphere in the space dimension. 

From the post "Freaking Out Entanglement" dated 14 Dec 2017 (corrected as),

$\cfrac{8^3}{6}\pi^2*f^2*m_ac^2=1*\cfrac{3}{4\pi}*f^3*m_ac^2$

instead of a sphere in time we use a cube,

$\cfrac{8^3}{6}\pi^2*f^2*m_ac^2=1*\cfrac{1}{Vol_{cube}}*m_ac^2$

The centroid to vertex distance, $r$ of a cube of edge $a$ is,

$r=\cfrac{\sqrt{3}}{2}a=T$

if this is equal to $T$ (a unit of time) then its volume is given by,

with $a=\cfrac{2}{\sqrt{3}}T$,

$Vol_{cube}=\left(\cfrac{2}{\sqrt{3}}T\right)^3$

This approach is consistent with that taken for other platonic solids.  Previously, in the post "What If The Particles Are Photons?" dated 12 Dec 2017, we had used simply $T=a$ and had obtained a value of $f=280.735\,\,Hz$. 

With $T=\cfrac{\sqrt{3}}{2}a$ however,

$\cfrac{8^3}{6}\pi^2*f^2*m_ac^2=1*\left(\cfrac{\sqrt{3}}{2}f\right)^3*m_ac^2$

where $T=\cfrac{1}{f}$,

$f=\cfrac{8^3}{6}\left(\cfrac{2}{\sqrt{3}}\right)^3\pi^2=131.379\pi^2=1296.661\,\,Hz$

What is this frequency?  square 1296-661 Hz