Part of Open Source Hardware is attributions, giving appropriate credit for work done elsewhere. We try to attribute properly in the software or hardware documentation, but to make the information easily available, here is one listing of all of our attributions.
Arduino – We use Arduino hardware for DAQ and a fair bit of example code they have listed as public domain.
Adafruit – The thermistor tutorial was useful, and I’m sure that we will be using more of the tutorials in the future.
OpenOffice -We use OpenOffice Calc and Writer for various spreadsheets and documents.
Purdue University Hybrid Rocket Program – Short hybrid motor video clip in the Kickstarter video.
GNU Octave – Basic numerical calculation program. Also does some nice plots.