Scrap Mob Microscope

Old mobile phones make excellent microscopes, for use in telemedicine (e.g. blood checks), water quality monitoring, etc. The cost is almost zero apart from the phone itself, everything can be built from scrap parts.

This model here loosely follows the instructions on http://www.iflscience.com/ & http://www.instructables.com/id/10-Smartphone-to-digital-microscope-conversion/ (thanks!) and was built by Lars Yndal at the PITLab at ITU Copenhagen http://pit.itu.dk