Let's say you have a football field in need of a trimming, but the lawn
mowers are all broken, but you have an oxen store nearby. Oh, and the big
match is in an hour. How many oxen do you need?
Normally, you'd use units, but...
You have: m2/hr
You want: ox
unknown unit 'ox'
Easy fix. Working from historical defintion of an acre as the area an ox
can work in a day, we get:
You have: m2/hr
You want: ox
* 0.0059305292
/ 168.61902
Tada! Now you know that 6400 m^2 field you have is going to require 38
oxen.
Index: units.lib
===================================================================
RCS file: /home/tedu/cvs/src/usr.bin/units/units.lib,v
retrieving revision 1.11
diff -u -r1.11 units.lib
--- units.lib 17 Jul 2002 16:42:12 -0000 1.11
+++ units.lib 13 Oct 2010 23:49:55 -0000
@@ -180,6 +180,8 @@
acre 4840 yd2
+ox acre/day
+
cc cm3
liter kilocc
ml milliliter
