Two new shows opened yesterday on the second floor of the Hirshhorn Museum, and an unexpected ice day offered the perfect chance to go see them. Refract, Reflect, Project brings together a few rooms worth of light works from the museum’s collection, some more recent and some classics. The most striking work was an installation by the Danish artist Olafur Eliasson, whose The weather project transformed the Turbine Hall of London’s Tate Modern in 2003….