Have you always wanted to build a Rube Goldberg-type contraction? Now's your chance. Come to the Downtown ACPL March 24, 2-4 pm as the TekVenture Design Team will share tips and techniques for building a better machine. The 5th Annual Chain Reaction Challenge is Saturday, April 24 at the Downtown ACPL. We'll pull the string on the first machine at 2:00 pm so get there early so you can see all the work that goes into these one-of-a-kind links in our community chain reaction.