radioactivity

Speculation: The scorch might have been made by radioactivity attendant upon the resurrection.

This new virus strain was accidentally produced in the course of some experiments with radioactivity.

Twenty minutes after the irradiation period, the radioactivity of the calcium standards is measured by the same instrument.

Later on, radioactivity from silver (silver-110m) can be measured using a longer counting time.

Since the atomic wars, the increased radioactivity of the earth undoubtedly stimulates mitosis of the malignant cells.

Traces of natural radioactivity can be found, in fact, in all substances on earth.