Hi guys, I've been using your group as a resource for a few years, here's something I thought I'd share. I just started working with PLOTS, a group that has developed an open source spectrometer kit using a webcam and a piece of a DVD. The initial application is pollution monitoring but as it is developed by users the possibilities are endless. Come join us and play. If you want to help work towards a better world that's cool too. http://publiclaboratory (dot) org/home
bob-o
bob-o