Photomicrograph of red blood cells

Photomicrograph of red blood cells

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Credit: SHEILA TERRY/SCIENCE PHOTO LIBRARY

Caption: Photomicrograph of trans-illuminated human red blood cells (erythrocytes) made at a magnification of 500 diameters using a solar microscope designed by the French photographic inventor and experimenter Auguste-Adolphe Bertsch (1813-1870). He is considered to be a pioneer in photomicrography. Using the sun as the light source, the microscope was able to create efficient bright-field illumination, reducing exposure times.

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Keywords: auguste-adolphe bertsch, blood cells, bright-field, erythrocytes, experimenter, french, history of science, illumination, inventor, microscopy, nineteenth century, photomicrograph, photomicrography, polarised light, solar microscope, sun

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