1 1933 - Ruska builds the first electron microscope that exceeds the resolution of the light microscope. 2  It has an accelerating voltage of 75 kV. 3  1934 - First electron micrograph of a biological sample. 4  long-leaved sundew fixed with osmium. 5  1937 - First scanning electron microscope is built.
Doris Roberts, star of âEverybody Loves Raymond,' dies at 90. Veteran actress Doris Roberts, who delighted audiences as one of television's favorite grandmothers with her work on the long-running sitcom Everybody Loves Raymond, died over the weekend. Roberts died in Los Angeles on Sunday. She was 90.
Characters. Lena Younger (Mama) â The matriarch of the Younger family, Lena, commonly referred to as âMama,â is Walter Lee and Beneathaâs mother and Travisâ grandmother.