The Richter scale (co-created)
Who
Beno Gutenberg, a German-American Jewish seismologist who co-developed the magnitude scale with Charles Richter
When
1935
Where
California Institute of Technology, United States
The magnitude scale published in 1935 and named for Charles Richter was co-developed with seismologist Beno Gutenberg, who supplied much of the mathematical framework. Gutenberg was a German Jewish scientist who had fled to the United States, and his contribution is often noted alongside Richter's name.
Sources
Part of “The Gifts of the Jews” — verified Jewish contributions to the world, with sources.