NB: Open to Nasa Ames: ISU/SU students/faculty only. Design and build (for under 10^4 - $10,000) an unmanned 'lunch getter robot' than can successfully navigate the yellow line/obstacle course that joins the Arthur C Clarke hall to the Peter Diamandis Hall, collect a lunch, and return it...

Some analysis suggests that emissions and contrails from planes, can have positive and negative impact on global warming (e.g. reflecting sun or acting as greenhouse) depending on time of day, altitude, cloud and atmospheric conditions, time/season of year, geodesic location.