Chien-Shiung Wu had expertise in the techniques of experimental physics and radioactivity. She worked on the Manhattan Project, and later performed experiments that contradicted the Law of Conservation of Parity. Her experiments confirmed the theories of Lee and Yang who were awarded a Nobel Prize for Physics. She was the first Wolf Prize winner in physics, but died in 1997 without receiving a Nobel. Many consider this one of the most notable Nobel oversights.
Marceline's Closet 