Dirac and Pauli
Dirac (right) - seen here in 1938 - discussed the possibility that the gravitational constant might vary with time, while Pauli (left) was fascinated with the value of the fine structure constant. (CERN Pauli Archive.)
International Journal of High-Energy Physics
Dirac (right) - seen here in 1938 - discussed the possibility that the gravitational constant might vary with time, while Pauli (left) was fascinated with the value of the fine structure constant. (CERN Pauli Archive.)