A Taiwanese artist has created an installation piece that takes away people’s cellphones to encourage them to reflect on their relationship with technology. Cheng Hsien-yu’s (鄭先喻) Discharge What You Charged — which consists of cube-like lidded apparatuses on plinths arranged around a display space — is part of “Transistor,” a special exhibition at the Museum of Contemporary Art (MOCA) in Taipei. When a viewer places their phone on one of the apparatuses, its lid closes and locks the phone up for 15 to 20 minutes before opening again, revealing it almost completely out of battery, Cheng wrote in his Web site. The exibition’s