Virtual Tour: Turn Back the Clock

Manhattan Project oral history: Mary Lou Curtis

Mary Lou Curtis of the Manhattan Project

Starting in 1943, Mary Lou Curtis worked in the top-secret polonium lab for the Manhattan Project in Dayton, Ohio.

In the videos below, Curtis talks about her work there:

This artifact is featured in our virtual Turn Back the Clock tour. Take the tour to learn more about the history of the Doomsday Clock and discover how you, today, can help “turn back the Clock.” Start here

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Take the virtual tour

This artifact is featured in our virtual Turn Back the Clock tour, based on an all-ages exhibit presented by the Bulletin at the Museum of Science and Industry from 2017 to 2019. Enter the tour to learn more about the history of the Doomsday Clock and what it says about evolving threats to humanity. See why Doomsday Clock matters more than ever and discover how you, today, can help “turn back the Clock.”

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