“Calculate the fine structure constant from first principles.” PhysicsQuantum MechanicsFine Structure Constant Book:Introduction to Quantum Mechanics Source: Introduction to Quantum Mechanics
“The fine structure constant is undoubtedly the most fundamental pure (dimensionless) number in all of physics. It relates the basic constants of electromagnetism (the charge of the electron), relativity (the speed of light), and quantum mechanics (Planck's constant).” SciencePhysicsFine Structure Constant Author:David J. Griffiths