A metal tube, similar to the aluminum pipes used for air-conditioning, was positioned vertically in a corner of the gallery. It had the appearance of a cold, conceptual sculpture, curved at the top like a periscope, the open end covered with a screen. This was the sole object in the gallery space during Berlin-based, Romanian-born artist Daniel Knorr’s exhibition “Urlo” (Scream). Visitors moved around it, examining the sculpture and inquiring as to its meaning. But it was only when the mysterious metal object started to move that they began to comprehend its function. Urlo, 2010, is a homemade