Space Screamer
We were asked by "The Naked Scientists" podcast to create a device that could go up on a high altitude balloon up to 100 000 feet and test if your screams can be heard in space.
We built a speaker and a microphone and a speaker attached to a rasperry pi and acoustically isolated from one another, so we could play screames through the speaker and record the result.
The resulting radio segment can be heard here:
https://www.thenakedscientists.com/articles/interviews/space-no-one-can-hear-you-scream-right
Also:
Commission