Consider a material particle P, described by its rest mass $m$ and momentum $p$. Definition: the **kinetic energy** of P is the number

$\begin{align} K \equiv \frac{\, p^{ 2}}{2m} \end{align}$

Since $m > 0$ for material particles, the kinetic energy is never negative. And in an inertial frame of reference, the momentum is proportional to the wavevector $\, \overline{\kappa} \,$, so that $K$ is proportional to $\kappa ^{2}$. Then recall that the wavenumber depends only on the coefficients of dynamic quarks. So the kinetic energy depends strongly on P's dynamic quark content.

Tatibin, Paminggir people. Lampung region of Sumatra circa 1900, 81 x 40 cm. Ship motif. From the library of Darwin Sjamsudin, Jakarta. Photograph by D Dunlop. |

Sensory interpretation: Dynamic quarks and the wavenumber have already been interpreted as representations of somatic and visual sensations. So the kinetic energy depends strongly on audio-visual sensations.