PROJECT #3 ------------ The lectures will discuss that there have been a significant number of modifications to the N-body/SPH code Gadget. These modification span a wide range in complexity and affect, and this project aims at testing what affects these modification have, while giving the interested party a chance to get their "hands-dirty" within the code itself. In practice, this project is best suited for someone that has already completed one of the previous projects, and thus already has the "fiducial" merger to compare any modification to. The directory project_3_refs contains a few papers with modifications that should be relatively quick to implement into GADGET. The running and analysis of the code is as with the other projects.