— 140 Words on 140 characters • Al Seckel - Illusions • Connor Dickie — Hidden information in photographs • Brian Walker — Backyard rockets • Osman Ozcanli — Materials research and design • Bill Gurstelle — Blowing Stuff Up EFTA_R1_01510567 EFTA02437679 • Colin Angle for Marvin Minsky for Ray Kurz

— 140 Words on 140 characters • Al Seckel - Illusions • Connor Dickie — Hidden information in photographs • Brian Walker — Backyard rockets • Osman Ozcanli — Materials research and design • Bill Gurstelle — Blowing Stuff Up • Colin Angle for Marvin Minsky for Ray Kurzweil- Phone Reader for the Blind

Jeff Pulver — 140 Words on 140 characters Al Seckel - Illusions Connor Dickie — Hidden information in photographs Brian Walker — Backyard rockets Osman Ozcanli — Materials research and design • Bill Gurstelle — Blowing Stuff Up Colin Angle for Marvin Minsky for Ray Kurzweil- Phone Reader for the Blind Se