Karl Landsteiner Karl Landsteiner Karl Landsteiner, , (14 June 1868 – 26 June 1943) was an Austrian biologist, physician, and immunologist. He distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups from his identification of the presence of agglutinins in the blood, and identified, with Alexander S. Wiener, the Rhesus factor, in 1937, thus enabling physicians to transfuse blood without endangering the patient's life. With Constantin Levaditi and Erwin Popper, he discovered the polio virus in 1909. He received the Aronson Prize in 1926. In 1930, he received the Nobel Prize in Physiology or
Ig Nobel Prize often, however, they draw attention to scientific articles that have some humorous or unexpected aspect. Examples range from the discovery that the presence of humans tends to sexually arouse ostriches, to the statement that black holes fulfill all the technical requirements to be the location of Hell, to research on the "five-second rule" - a tongue-in-cheek belief that food dropped on the floor will not become contaminated if it is picked up within five seconds. In 2010, Sir Andre Geim, who had been awarded an Ig Nobel Prize in 2000 for levitating a frog by magnetism, was awarded a Nobel