Half-life
Half-life (t½) is the time required for a quantity to fall to half its value as measured at the beginning of the time period. In physics, it is typically used to describe a property of radioactive decay, but may be used to describe any quantity which follows an exponential decay.
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Famous quotes containing the word half-life:
“I could draw Bloom County with my nose and pay my cleaning lady to write it, and I’d bet I wouldn’t lose 10% of my papers over the next twenty years. Such is the nature of comic-strips. Once established, their half-life is usually more than nuclear waste.”
—Berkeley Breathed (b. 1957)
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