(Troy Wayrynen/The Columbian)
June 19, 2013
David Martschinske, chief operations officer of Focus Designs in Camas, right, answers questions about his self-balancing unicycle during a PubTalk event at the Fort Vancouver Artillery Barracks on Tuesday. Those experts, or sharks, at the "Shark Tank"-like event are, from left, George DeCarlo of Woobox; Betsy Henning of AHA!; Paul Kollar of Loki Scientific; Lisa Lowe of Schwabe, Williamson & Wyatt; and Rick Nagle of VectorPoint Ventures.