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Best Of: Emma Unson Rotor: The Filipina Physicist Who Developed a Top Secret Weapon

Best Of: Emma Unson Rotor: The Filipina Physicist Who Developed a Top Secret Weapon

Emma Unson Rotor worked on the proximity fuze, a groundbreaking piece of World War II weapons technology that the U.S. War Department called “second only to the atomic bomb.”

Lost Women of Science

July 17, 202520m 8s

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Show Notes

Emma Unson Rotor took leave from her job as a math teacher in the Philippines to study physics at Johns Hopkins University in 1941. Her plans were disrupted when the Imperial Japanese Army invaded and occupied the Philippines. Unable to access her Philippine government scholarship to attend Johns Hopkins, she joined the Ordnance Development Division at the National Bureau of Standards. It was here that she did groundbreaking research on the proximity fuze, the “world’s first ‘smart’ weapon,” in the words of physicist Frank Belknap Baldwin, who also helped develop the technology.

This Best Of episode, which first aired in December 2923, is also available in a Spanish adaptation, narrated by Laura Gómez.

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