In my final year of university, I enrolled in a multidisciplinary capstone design course for the full year. Unlike the conventional capstone course, we worked in teams of 5, all from different disciplines of Engineering. Our project was done for a non-profit called Astronauts4Hire. A4H works with astronaut candidates and provides training to maximize their chances of getting certified. They also work on outreach projects for high school students, teaching them physics.
Our project worked towards both of their goals. We designed and built three experiments that could be run during parabolic flights - flights on jet airplanes that follow parabolic flight paths in order to provide about 30 seconds at a time of freefall and therefore zero-gravity. As opposed to sitting idle as they currently do, astronauts in training would be able to set up and interact with these experiments, testing their focus and dexterity while in a difficult zero gravity environment.
The first experiment demonstrated the intermediate axis theorem in zero gravity - the instability of rotation of certain objects. This stuff:
I worked primarily on this experiment. It consisted of a custom circuit board on the rotating body to measure gyroscope data and transmit it over bluetooth to an iPhone app.
We also built experiments to demonstrate capillary action and pendulum motion in zero gravity. A compilation of the results can be seen in the video below. This was captured during a drop tower test of about one second.
A4H is looking forward to flying our experiment box on an upcoming parabolic or suborbital flight.