--- loncom/homework/capa.units	2005/06/06 22:21:38	1.14
+++ loncom/homework/capa.units	2006/11/20 20:38:59	1.15
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Physical Unit definitions
 #
-# $Id: capa.units,v 1.14 2005/06/06 22:21:38 albertel Exp $
+# $Id: capa.units,v 1.15 2006/11/20 20:38:59 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -126,6 +126,7 @@ steradian       sr     m^2 /m^2        #
 lumen           lm     cd*sr         # luminous flux
 lux             lx     cd*sr/m^2     # illuminance
 becquerel       Bq     1/s           # activity (radioactive)
+curie           Ci     3.70E10 Bq    # activity (radioactive)
 gray            Gy     J/kg          # absorbed dose (of radiation)
 sievert         Sv     J/kg          # dose equivalent (dose equivalent index)
 astroUnit       AU     1.49598E11 m  # mean distance earth to sun