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• n  the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)

• Its "half-life" (the period during which one half disintegrates) is only five months.
• Cheung is 44, and if he has changed at all during his half-life in the public eye, it is to become more wily in the lavishing and husbanding of his allure.
• The two celebrities with the longest online half-life are Marilyn Monroe (47th most popular celebrity search) followed by Elvis Presley (in position #101).

• half life

News & Articles

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• Our View, Velma Morrison: Philanthropist used arts to touch many
  The most productive and beloved philanthropists have a knack for supporting living legacies. Their gifts have a half-life unrestrained by time and their work a perennial appeal for future generations.
  June 25, 2013 - The Idaho Statesman
• Cell Press publishes articles of the highest relevance and impact according to JCR 2012
  ( Cell Press ) The science published in Cell Press journals continues to deliver high impact across the research community as reflected in the measures of citation released this week in Thomson Reuters's Journal Citation Reports. Looking across impact factor and immediacy index as measures of a journal's short-term value as well as 5-year IF and cited half-life as indications of a journal's ...
  June 21, 2013 - EurekAlert!

Quotes

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• Larry Sabato in International Herald Tribune
  The half-life of political celebrity is really quite short, so she has to make a move,said Larry Sabato, director of the University of Virginia's Center for Politics.
• Gabe Newell in HardwareGeeks.com (press release)
  The AMD Athlon 64 FX-55 processor is the fastest CPU available for running Half-Life(R) 2, and the AMD Athlon 64 FX-57 processor will be even faster,said Gabe Newell, founder and president of Valve. "I have an AMD Athlon 64 FX-55 processor...