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    Dead tree in a field in the foreground and a rainbow in the distance; Denver, Colorado, United States of America — Stock Photo
    Dead tree in a field in the foreground and a rainbow in the distance; Denver, Colorado, United States of America
    Male workers examining part in fiber optics factory — Stock Photo
    Male workers examining part in fiber optics factory
    3d illustration of optical light guide cables in different colours with open ends which shining brightly. — Stock Photo
    3d illustration of optical light guide cables in different colours with open ends which shining brightly.
    Professional binocular goggles with magnifying lenses placed on marble table near worker in modern laboratory — Stock Photo
    Professional binocular goggles with magnifying lenses placed on marble table near worker in modern laboratory
    Male and female supervisors checking inventory in fiber optics factory — Stock Photo
    Male and female supervisors checking inventory in fiber optics factory
    Ethereal northern lights over lake in boreal forest, Yellowknife environs, Northwest Territories, Canada — Stock Photo
    Ethereal northern lights over lake in boreal forest, Yellowknife environs, Northwest Territories, Canada
    Mirror, chest of drawers, — Stock Photo
    Mirror, chest of drawers,
    Young girl with binoculars. — Stock Photo
    Young girl with binoculars.
    Optometrist adjusting the retinograph during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the retinograph during study of the eyesight of a black woman
    Low angle view of northern Lights in night sky outside Whitehorse, Yukon, Canada. — Stock Photo
    Low angle view of northern Lights in night sky outside Whitehorse, Yukon, Canada.
    Male and female supervisors with digital tablet inspecting fiber optic cable in factory — Stock Photo
    Male and female supervisors with digital tablet inspecting fiber optic cable in factory
    Engineers in clean suits using machinery in fiber optics research and testing lab — Stock Photo
    Engineers in clean suits using machinery in fiber optics research and testing lab
    Pair of vintage binoculars — Stock Photo
    Pair of vintage binoculars
    Happy black woman with braids smiling and looking at camera before putting on binocular goggles during work in contemporary laboratory — Stock Photo
    Happy black woman with braids smiling and looking at camera before putting on binocular goggles during work in contemporary laboratory
    Female technician in white coat using microscope. — Stock Photo
    Female technician in white coat using microscope.
    Ethnic Asian female photographer shooting photo on professional photo camera on city street — Stock Photo
    Ethnic Asian female photographer shooting photo on professional photo camera on city street
    Man looking through a telescope over the city. — Stock Photo
    Man looking through a telescope over the city.
    Skull structure and eyes muscles — Stock Photo
    Skull structure and eyes muscles
    Anterior view of human skull anatomy with annotations — Stock Photo
    Anterior view of human skull anatomy with annotations
    3d illustration of cross-section of human eye in side view and frontal view. — Stock Photo
    3d illustration of cross-section of human eye in side view and frontal view.
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab — Stock Photo
    Contemporary professional microscope with powerful lenses placed on table in modern equipped lab
    3d illustration of optical light guide cables in different colours with open ends which shining brightly. — Stock Photo
    3d illustration of optical light guide cables in different colours with open ends which shining brightly.
    Side view of ethnic Asian female photographer shooting photo on professional photo camera on city street — Stock Photo
    Side view of ethnic Asian female photographer shooting photo on professional photo camera on city street
    53745 — Stock Photo
    53745
    Mass of coiled and tangled computer and electrical cables. — Stock Photo
    Mass of coiled and tangled computer and electrical cables.
    Supramedial eye anatomy showing muscle innervation — Stock Photo
    Supramedial eye anatomy showing muscle innervation
    Side view of ethnic Asian female photographer shooting photo on professional photo camera on city street — Stock Photo
    Side view of ethnic Asian female photographer shooting photo on professional photo camera on city street
    Woman in sunhat and scarf on beach — Stock Photo
    Woman in sunhat and scarf on beach