Tag: immune system
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Karl Landsteiner and the discovery of blood groups
Safia BenaissaMostganem, Algeria Karl Landsteiner was the Austrian scientist who recognized that humans had different blood groups and made it possible for physicians to transfuse blood safely. He entered medical school at the University of Vienna, where he developed an interest in chemistry. After taking off a year to complete his military service he returned…
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The diagnostic eclipse
Naomi Schlesinger Gregory Maniatis Ranita Sharma Boris D. Veysman Piscataway, New Jersey, United States In 1919, astronomer Arthur Eddington was studying a photograph of the solar eclipse that occurred just days prior. The sun was completely and perfectly covered by the moon, a breathtaking sight, but Eddington looked past it. He searched for tiny…