Complex sentence: Gerlach experiment is a 1922 quantum mechanics experiment on the deflection of particles conducted by Otto Stern and Walther Gerlach, demonstrating that electrons and atoms have intrinsically quantum properties, and that measurement in quantum mechanics affects the system being measured.
Split into simpler sentences: Gerlach experiment is a 1922 quantum mechanics experiment on the deflection of particles conducted by Otto Stern and Walther Gerlach. It can be used to demonstrate that electrons and atoms have intrinsically quantum properties, and how measurement in quantum mechanics affects the system being measured.