The bomb dropped on Hiroshima totally destroyed everything in a 1.6 km radius, a total of 12 km2 was destroyed. 80 000 people were killed by the blast and resulting firestorm, with another 80 000 dieing later from after effects.
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The first atomic bomb, dropped on Hiroshima on August 6, 1945, leveled approximately 5 square miles of the city.
The first atomic explosion occurred on July 16, 1945, as part of the Trinity test in Alamogordo, New Mexico during the Manhattan Project.
The first atomic bomb was dropped on Hiroshima, Japan on August 6, 1945, by the United States during World War II. Three days later, a second atomic bomb was dropped on Nagasaki, Japan.
The first atomic clock was developed by scientists at the National Physical Laboratory in the United Kingdom in 1955. This clock used the vibrations of cesium atoms to measure time accurately and has since become the standard for measuring time.
To set the time on a Stauer titanium atomic watch, first ensure the watch is receiving a signal from an atomic clock. If not, manually set the time using the crown. Pull the crown out to the time-setting position and rotate it to adjust the time. Push the crown back in once the correct time is set.
The first city in America to have electric lights was Cleveland, Ohio in 1879. The lights were installed in the public square.