As the atomic cloud billowed two miles overhead and eclipsed the sun, the bomb’s vertical blast pressure crushed much of the Urakami Valley. Horizontal blast winds tore through the region at two and a half times the speed of a category five hurricane, pulverizing buildings, trees, plants, animals, and thousands of men, women, and children. In every direction, people were blown out of their shelters, houses, factories, schools, and hospital beds; catapulted against walls; or flattened beneath collapsed buildings. Those working in the fields, riding streetcars, and standing in line at city
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