'FourMats' exhibit at the MAG tinkers with time

Tara Merenda Nelson’s film and video installations jumps through time in the exhibition "FourMats" at the MAG.The room in the Memorial Art Gallery where Tara Merenda Nelson’s film and video installations are screening is silent except for the whirring and clicking of machines. The devices — projectors for 16mm, Super 8, and slide film, as well as high-definition video — are in fact part of the show; each carefully positioned for their projections to align with one another