<![CDATA[If you didn't know, Google can do clever unit conversions. Example conversions include:
1 mile in km
4 weeks in days
4.9 lightyears in au
You can even use compound units:
55 mph in m/s
20 N/(m^2) in Pascals
In fact you can use arbitrary compund units. The silliest I managed to find is:
2 great gross speed of light in bakers dozen furlongs per year
A great gross is 12 gross (a gross is 144).
A bakers dozen is 13.
A furlong is 220 yards.
Google, conversions, silly]]>