added equivalent units to comments in em.awk;

1 files changed, 2 insertions, 2 deletions

diff --git a/em.awk b/em.awk
index 1297153..c956fa1 100644
--- a/em.awk
+++ b/em.awk
@@ -6,8 +6,8 @@ BEGIN {
     ### constants
     pi = 4.0*atan2(1,1)         # rad
     c0 = 299792458E0            # m/s, exact
-    mu0 = (4.0E-7)*pi           # H/m
-    epsilon0 = (mu0*c0^2)^-1    # F/m
+    mu0 = (4.0E-7)*pi           # H/m = (T*m)/A = N/(A^2) = (kg*m)/(A*s)
+    epsilon0 = (mu0*c0^2)^-1    # F/m = C/(V*m) = (A^2*s^4)/(kg*m^3)
 
     print pi, c0, mu0, epsilon0
 }