On Sun, 8 Jul 2001, Avi Bryant wrote:

> class Numeric
> 	def mm
> 		Millimeters.new(self)
> 	end
> 	def cm
> 		Centimeters.new(self)
> 	end
> 	...
> end

Although actually it should be

class Numeric
	def mm
		Meters.new(self / 1000.0)
	end
	def cm
		Meter.new(self / 100.0)
	end
	...
end

Avi