For this project, we got the idea of making a platform
and the PSA would sit on the platform in the middle. The platform
would be moved remotely by radio waves. In a sense, the whole thing
was a floating RC vehicle. 12 volts of DC current powered the whole
device. We were successful: we were able to move the device up, down,
and in any direction remotely for far more than three inches!
To create the microgravity environment, helium balloons
pulled up at enough force to "defy gravity" in that particular
area. We were planning on running a fan on the bottom of the craft,
but we soon found out that it wasn't needed.
We had a great time doing this project!