Kaufmann–Bucherer–Neumann experiments

The Kaufmann–Bucherer–Neumann experiments, conducted in the early 20th century, were pivotal in the field of experimental physics, specifically in the study of high-energy electrons and their interaction with electromagnetic fields. These experiments aimed to measure the charge-to-mass ratio of the electron with high precision. The experiments involved the deflection of cathode rays (streams of electrons) in electric and magnetic fields.