Ryan Thayer: Timemachines In this exhibit of photograms, local artist Ryan Thayer suggests that temporal distinctions of the past, present and future collapse in the tiny frames of portable devices with LCD screens. When you're holding an archival image in the palm of your hand as it's displayed on, say, an iPod, the future is essentially now. Thayer exposes cell phones, laptops, iPads — all those gadgets that have come to define how we now experience daily life — to traditional photo processing, rendering something akin to an x-ray trace. These ghostly archeological imprints of planned obsolescence, in their characteristic black-and-white severity, simultaneously recall turn-of-the-century avant-garde techniques and ultra-contemporary technology — making something wistful and timeless out of tomorrow's recyclables. Through March 25 at PSTL Gallery at Pace Framing, 3842 Washington Boulevard; 314-531-4304 or www.paceframing.com. Hours: 10:30 a.m.-5 p.m. Tue.-Sat.