Author Comment Last activity Moderation
swkim789 "An affordable and great Raman Spectrometer! I really appreciate what you have demonstrated with the PublicLab spectrometer you have wonderfully mo..." | Read more » about 8 years ago
swkim789 "Hi bhickman, I am glad I found your site this week. Well, I should have found your inventions earlier. Quite helpful instuctions, and bill of ma..." | Read more » over 8 years ago