= Marietta Blau
{c}
{tag=Physicist}
= M. Blau
{c}
{synonym}
An experimental <particle physicist> who coauthored observations of nuclear disintegration in photographic emulsions with <Hertha Wambacher>. A cluster of charged-particle tracks sharing one origin provided evidence for an interaction induced by <cosmic rays>. Recording such events photographically made rare nuclear processes available for repeated microscopic examination and measurement.<Disintegration Processes by Cosmic Rays with the Simultaneous Emission of Several Heavy Particles by Marietta Blau and Hertha Wambacher>[Research letter, Nature 140, 585 (1937): disintegration stars]{ref}
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