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.
Alexander Graham Bell and His Role in Oral Education by Brian H. Greenwald, Ph.D., Gallaudet University Alexander Graham Bell was born on March 3, 1847, the second of 3 children, in Edinburgh, Scotland to Melville and Eliza Bell. Bellâs father and grandfather, also named Alexander Bell, were elocutionists specializing in voice presentation, delivery, and other aspects of speech teaching.