It’s Engineering Excitement at the Discovery Museum this week with activities from civil, mechanical, electrical, aerospace and environmental engineering.  Join OU profs and students and make unique paper airplanes, build a vehicle for the maglev track, design water filters, explore gears and robotics, and much, much more!  10 a.m. to 2 p.m. in the Market on State.  $2/person or $7 for a family of four or more.