Johannes Rydberg
1854–1919 (age 65)
Biography
Johannes Rydberg was an eminent Swedish physicist whose groundbreaking work in spectroscopy and atomic physics advanced scientific understanding in the late 19th and early 20th centuries. His discoveries and theoretical contributions earned him international recognition and established him as a leading figure in physics.
Rydberg's most significant contribution was the formulation of the Rydberg formula, which describes the wavelengths of light emitted by hydrogen atoms. His work laid important foundations for the development of modern atomic theory and continues to be fundamental to physics education and research worldwide.