The FIRST organization is hosting a regional robotics competition this Thursday, Friday, and Saturday at Hale arena. Admission is free to the public although there is a $7 charge for parking.
This isn't a Battlebots like competition. Teams of high school kids are challenged to build a robot that solves a complex problem from a standard parts kit.
Come out and support your local nerds.
Kansas City Regional Competition page
http://www.kcfirst.org/frc08/index.cfm FIRST Kansas City chapter
http://www.kcfirst.org/ FIRST national organization
http://www.usfirst.org/