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Author Comment Last activity Moderation
omarormachea "Dear @TeacherHelen, you can use the following free software created for android platforms, you can get information about it, from the calibration a..." | Read more » over 3 years ago
omarormachea "Ifyou want to measure the spectra of various light bulbs, you can visit this web page: http://www.upb.edu/en/contenido/smartphone-spectrometer Yo..." | Read more » almost 4 years ago