  We have in earlier work (Basse N P 2005, Phys. Lett. A vol. 340 p. 456)
reported on intriguing similarities between density fluctuation power versus
wavenumber on small (mm) and large (Mpc) scales. In this paper we expand upon
our previous studies of small and large scale measurements made in fusion
plasmas and using cosmological data, respectively. The measurements are
compared to predictions from classical fluid turbulence theory. Both small and
large scale data can be fitted to a functional form that is consistent with the
dissipation range of turbulence. The comparable dependency of density
fluctuation power on wavenumber in fusion plasmas and cosmology might indicate
a common origin of these fluctuations.
