åüÃÄÖ±²¥ physics professor Dipangkar Dutta uses a plasma lightbulb to for a demonstration on conducting electricity during åüÃÄÖ±²¥'s Science Night at the Museums on Saturday [Feb. 18]. Sponsored by åüÃÄÖ±²¥ Museums and Galleries, the free event included museum tours and scientific demos for visitors of all ages. .