Residual Radioactivity

Some articles on residual radioactivity:

Gemstone Irradiation - Radioactivity and Regulations
... set aside for a couple of months to allow any residual radioactivity to decay ... This method produced a dangerously high degree of long-term residual radioactivity and is no longer in use ... The concerns for possible health risks related to the residual radioactivity of the gemstones led to government regulations in many countries ...

Famous quotes containing the word residual:

    The volatile truth of our words should continually betray the inadequacy of the residual statement. Their truth is instantly translated; its literal monument alone remains.
    Henry David Thoreau (1817–1862)