https://joy.videvo.net/videvo_files/video/free/2014-02/large_watermarked/Microscope_8__Scientist__Videvo_preview.mp4 Scientist Using Microscope A scientist adjusting the magnification on a microscope. 1080pbiochemistrybiologychemistryclinicaldoctorhospitallablaboratorylensmagnificationmagnifymedicalmedicinemicrobiologymicroscoperesearchsamplesciencescientificscientist