Medical Definition of Red blood cells. Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
Alexander Milne Calder (August 23, 1846 â June 4, 1923) was a Scottish American sculptor best known for the architectural sculpture of Philadelphia City Hall. Both his son, Alexander Stirling Calder, and grandson, Alexander Sandy Calder, became significant sculptors in the 20th century.
In 1955 Alexander and Louisa Calder travelled around in India for three months, where Calder produced nine sculptures as well as some jewelry. In 1963, Calder settled into his new workshop, which overlooked the valley of the Lower Chevriere chevriÃ¨re To sache SachÃ©-in-Indre (Et). loire france