--- loncom/homework/capa.units	2001/10/08 20:15:57	1.4
+++ loncom/homework/capa.units	2002/04/23 22:30:40	1.7
@@ -1,3 +1,30 @@
+# The LearningOnline Network with CAPA
+# Physical Unit definitions
+#
+# $Id: capa.units,v 1.7 2002/04/23 22:30:40 albertel Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
 # 
 # ======================= Unit section =============
 # Base Unit
@@ -12,6 +39,7 @@ ampere          A      # electric curren
 kelvin          K      # thermodynamic temperature
 mole            mol    # amount of substance
 candela         cd     # luminous intensity
+decibel         dB     # log of pressure amplitude
 
 #   Prefix     symbol     factor
 << Prefix >>
@@ -49,9 +77,10 @@ gram            g      0.001 kg      # m
 day             day    24.0 hr       # time
 year            yr     365.24 day    # time
 hour            hr     3600. s       # time
+hour            h      3600. s       # time
 minute          min    60 s          # time
 pound           lb     0.45359237 kg # mass
-ounce           oz     1.77185E-3 kg # mass
+ounce   	oz     2.83495E-2 kg # mass
 inch            in     2.54 cm       # length
 foot            ft     12 in         # length
 mile            mi     5280 ft       # length