This photo provided by Wired Nextfest shows Rob Innes skimming across the Chicago River in a bionic dolphin Thursday, June 23, 2005, to call attention to Nextfest, a futuristic technology show opening this weekend in Chicago. The dolphin, a submersible developed by Innespace, can power two people to 40 m.p.h. on the surface and 20 m.p.h. below. (AP Photo/Wired Nextfest, Brian Kersey) Mechanical dolphin makes a splash June 24, 2005 BY GARY WISBY Staff Reporter Advertisement Folks walking across the Michigan Avenue bridge Thursday morning witnessed something no one had ever seen before -- a mechanical dolphin in the...