Get schooled in the art of creative interior lighting with a whimsical light fixture that doesn't hide its industrial edge. The Relativity pendant by Troy Lighting was inspired by the work and era of Albert Einstein. Its hand-formed iron-and-rebar shade is finished with salvaged zinc for a rustic matte look and is suspended from a cable wire. The lamp’s interior resembles a chalkboard compete with hand-drawn mathematical equations and illustrations while metal cages—a reference to early electric lamps—cover the bulbs. The pendant is available with five, four, or three bulbs; a one-blub sconce is also available. Troy Lighting, www.troy-lighting.com; 626.336.4511.