Articles on Radioactivity

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Americans heard about atomic bombs long before one was actually built. US Department of Defense

Even before Hiroshima, people knew the atomic bomb

News of the Hiroshima bombing spread quickly to the US public but, thanks to science fiction writers, atomic bombs were discussed more before the war began than during it.
Blowing up the desert – and people’s minds: the first atom bomb test in 1945. US Government

Radiation in the postwar American mind: from wonder to worry

The first atom bomb test seventy years ago today marks the start of a change in Americans' thinking about radiation. On balance, our nuclear anxieties endure today.
Don’t be confused: here’s the difference between radiation and radioactivity. Mob Mob

Explainer: the difference between radiation and radioactivity

On the weekend, a tank of radioactive material leaked from the closed Ranger uranium mine in the Northern Territory. While this has prompted concerns about the health of the surrounding Kakadu National…

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