Marie Curie's radioactive fingerprints
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Marie Curie worked with radioactive material with her bare hands. More than 100 years after her groundbreaking work, Sophie Hardach travels to Paris to trace the lingering radioactive fingerprints she left behind.
The Geiger counter starts flashing and buzzing as I hold it against the 100-year-old Parisian doorknob. I am standing in the doorway between the historical lab and office of Marie Curie, the Polish-born, Paris-based scientist who invented the word "radioactivity" – and here is an especially startling trace of her. The museum that houses the lab has invited me in here to track radioactive handprints left by her when she worked here in the early 20th Century. Here, on the doorknob, is one such trace. There's another one on the back of her chair. Many more of these invisible traces are dotted all over her archived notes, books and private furniture, some only discovered in recent years.
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