Tag Archives: immune system

Karl Landsteiner and the discovery of blood groups

Safia Benaissa Mostganem, Algeria   Karl Landsteiner (1868–1943), Austrian pathologist, hematologist and serologist; discoverer of the blood groups. Albert Hilscher. circa 1910. Accessed via Wikimedia Commons 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 diagnostic eclipse

Naomi Schlesinger Gregory Maniatis Ranita Sharma Boris D. Veysman Piscataway, New Jersey, USA   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 specks […]