  Astronomical phenomena are governed by processes on all spatial and temporal
scales, ranging from days to the age of the Universe (13.8,Gyr) as well as from
km size up to the size of the Universe. This enormous range in scales is
contrived, but as long as there is a physical connection between the smallest
and largest scales it is important to be able to resolve them all, and for the
study of many astronomical phenomena this governance is present. Although
covering all these scales is a challenge for numerical modelers, the most
challenging aspect is the equally broad and complex range in physics, and the
way in which these processes propagate through all scales. In our recent effort
to cover all scales and all relevant physical processes on these scales we have
designed the Astrophysics Multipurpose Software Environment (AMUSE). AMUSE is a
Python-based framework with production quality community codes and provides a
specialized environment to connect this plethora of solvers to a homogeneous
problem solving environment.
