https://joy.videvo.net/videvo_files/video/free/2014-02/large_watermarked/Microscope_5__Scientist__Videvo_preview.mp4 Scientist Using Microscope A scientist placing a sample under a microscope. 1080pbiochemistrybiologychemistryclinicalcoll_pandemiccoll_vaccinecorona viruscoronaviruscovid-19doctorhospitallablaboratorylensmagnificationmagnifymedicalmedicinemicrobiologymicroscoperesearchsamplesciencescientificscientist