  Small scale magnetic fields (magnetic elements) are ubiquitous in the solar
photosphere. Their interaction can provide energy to the upper atmospheric
layers, and contribute to heat the solar corona. In this work, the dynamic
properties of magnetic elements in the quiet Sun are investigated. The high
number of magnetic elements detected in a supegranular cell allowed us to
compute their displacement spectrum $\langle(\Delta
r)^2\rangle\propto\tau^\gamma$ (being $\gamma>0$, and $\tau$ the time since the
first detection), separating the contribution of the network (NW) and the
internetwork (IN) regions. In particular, we found $\gamma=1.27\pm0.05$ and
$\gamma=1.08\pm0.11$ in NW (at smaller and larger scales, respectively), and
$\gamma=1.44\pm0.08$ in IN. These results are discussed in light of the
literature on the topic, as well as the implications for the build up of the
magnetic network.
