= Walther Gerlach
{c}
{tag=Physicist}
{wiki}
= W. Gerlach
{c}
{synonym}
= Walter Gerlach
{c}
{synonym}
<Walther Gerlach> and <Otto Stern> sent a neutral <silver> atomic beam through a nonuniform <magnetic field>. Its deposited trace separated into discrete components instead of the continuous range expected from an elementary classical orientation model. The <magnetic field> <gradient> converts different <magnetic moment> projections into distinct trajectories; a uniform <magnetic field> lacks the required separating force. The <Stern-Gerlach experiment> thus makes the field geometry essential to the observation, while its modern <spin> interpretation differs from the original expectations.<Der experimentelle Nachweis der Richtungsquantelung im Magnetfeld by Walther Gerlach and Otto Stern>[Original experiment and beam-deposition result]{ref}
A <physicist>.https://www.physik.lmu.de/de/quantenjahr-2025/geschichte-der-quantenphysik/[Biographical identity and professional specialization]{ref}
\Image[https://www.deutsches-museum.de/assets/_processed_/c/3/csm_NL_080_5950c562e0.jpg]
{title=Portrait of <Walther Gerlach>}
{width=240}
The <Stern-Gerlach experiment>, with <Otto Stern>, sent a neutral <silver> <atomic beam> through a nonuniform <magnetic field> and recorded its deposition pattern.
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