Stern–Gerlach experiment
This experiment was first conceived by Otto Stern in 1921, and successfully conducted in 1922 by Walther Gerlach.
A beam of silver atoms are passed through a magnetic field and their deflection pattern is observed. According to preconceived conceptions, the distribution of the atoms should be continuous, but in reality, it was discrete, one point being the top (North) and the other being the bottom (South).
# Questions
- Why silver atoms?
Related:: Electron spin