Walking into the cavernous first-floor gallery of the Institute of Contemporary Art (ICA) in Philadelphia—where “RE_________,” an exhibition by the Norwegian-born, Berlin-based artist Sissel Tolaas is currently on view (through Dec. 30)—feels like stepping into a scientist’s laboratory, if the scientist it belonged to had also studied minimal sculpture. There’s a wall of small vials printed with the artist’s name, each containing a bit of clear liquid. Plastic tubes and metal piping run high along the gallery, carrying who knows what to who knows where. Others descend from the ceiling towards concrete reservoirs that have been raised from the floor. One of them is disgorging, drop by drop, a bit of unknown liquid. In the center of the room, an assembly of large flasks, some of which are bubbling, releasing visible vapor into the air, surrounds a huge pillar. Beyond it is a long, multilevel plinth covered in small objects; in the center of the floor, an assemblage of glass sculptures, seemingly empty.