The Curie reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Curie

The curie (symbol Ci) is a former unit of radioactivity, equal to 3.700×10¹⁰ decayss per second. This is roughly the activity of 1 gram of the radium isotope ²²⁶Ra, a substance studied by the pioneers of radiology, Marie Curie and Pierre Curie (the unit is named for them). The Curie unit has been replaced by an SI derived unit, the becquerel (Bq), which equates to one decay per second (therefore 1 Bq = 2.7×10^-11Ci and 1 curie is 37 gigabecquerels).

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