Virtual Tour: Turn Back the Clock

Manhattan Project oral history: Jean Bacher

Jean Bacher of the Manhattan Project

Jean Dow Bachar was a human "computer" at Los Alamos during the Manhattan project.

Here, she talks about learning that her work had been used to create the atomic bombs that were dropped on Hiroshima and Nagasaki in 1945.

"What absolutely was devastating to me personally was when I suddenly realized this," she said. "I was just absolutely undone. I went home and I could not go to sleep. I just really shook all night. It was such a shock to me. So I am sure that there were others that had the same experience. But such a very deep experience, it never leaves you."

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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