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Original data used by Japan to identify Hiroshima A-bomb found

Photo taken at the Kyoto University Museum in Kyoto, western Japan, on June 26, 2015, shows original copies of handwritten documents based on a survey of Hiroshima immediately after the U.S. atomic bombing of the western Japanese city in 1945, including graphs showing the measurements of radioactive rays from soil samples collected. They were found from among personal belongings of the late Kyoto Imperial University physics professor Bunsaku Arakatsu. (Kyodo) ==Kyodo

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Original data used by Japan to identify Hiroshima A-bomb found

File photo taken in July 1943 shows Bunsaku Arakatsu, a physics professor at Kyoto Imperial University. He was the first expert to identify the atomic bomb dropped in 1945 on Hiroshima, western Japan, as a new type of bomb based on scientific data. (Kyodo) ==Kyodo

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Original data used by Japan to identify Hiroshima A-bomb found

The original copy of a carefully hand-drawn graph showing the measurements of radioactive rays from soil samples collected during a survey of Hiroshima immediately after the U.S. atomic bombing of the western Japanese city in 1945 is shown at the Kyoto University Museum in Kyoto on June 26, 2015. The document, along with others, was found among personal belongings of the late Kyoto Imperial University physics professor Bunsaku Arakatsu. (Kyodo) ==Kyodo

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Original data used by Japan to identify Hiroshima A-bomb found

Akira Masaike, professor emeritus at Kyoto University, speaks in an interview in Abiko, Chiba Prefecture, northeast of Tokyo, on June 26, 2015, about his surprising discovery of the original documents of data based on a survey of Hiroshima immediately after the U.S. atomic bombing of the western Japanese city in 1945 from among personal belongings of the late Kyoto Imperial University physics professor Bunsaku Arakatsu. Documents seen in the photo are copies of the originals. (Kyodo) ==Kyodo