Invention Challenge at JPL
Students compete in the 2012 Invention Challenge at JPL.
The event drew more than 240 students, teachers and guests from 18 schools throughout Southern California. This year's challenge was to build a device capable of propelling a roll of toilet tissue in such a way that it creates a long, unbroken stream of tissue paper.
A total of 20 student teams competed along with 8 teams made up of JPL engineers and scientists.
Image credit: NASA/JPL-Caltech