Fifty years old this month, Kraftwerk's single Radioactivity was a groundbreaking track that morphed into the German ...

The nuclei of certain atoms are stable and under ordinary circumstances, stable nuclei do not undergo change. The nuclei of other atoms are unstable. These nuclei undergo change spontaneously, that is ...

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1 p.m. ET | Tepco said Thursday that the water beneath the damaged reactor has radioactivity measuring at 10,000 time the legal limit, though it still believes the drinking water supply to be safe.

Radioactivity is defined as the release of energy by means of radiation in atoms. It was first discovered in the year 1896 by Henri Becquerel, who carried out further experiments in conjunction with ...