🚀 go-pugleaf

In article <1993Jan5.181832.26689@impmh.uucp> dsg@impmh.uucp (Dave Gordon) writes:
>In <199226.4412.10939@dosgate> "gordon torrie" <gordon.torrie@canrem.com> writes:
>
>>bill@leeweyr.sccsi.com (Bill Lee) writes:
...
>>> Of the three "arrows" in the logo, two are curving from back-to-
>>> front while the third (lower right) is from front-to-back.
>>
>>I agree that two should curve back-to-front and that the third
>>should curve front-to-back, but I believe it is the lower left
>>arrow that is the third arrow. I'm using a pamphlet published by
>>the Gov. of Canada as a guide to the proper use of the recycle
>>logos (there is more than one) for my reference.
>
...

The recycle symbol is meant to be a mobius loop.  It is
meant to symbolize an infinite loop, i.e., infinitely
reusing something that is recyclable.  The Government of 
Canada chose to go with the variant that *is* a mobius loop.

With this version, if you carefully follow the surfaces of 
the arrows as they go from front to back around the loop, 
you will return to your starting point after going around twice.
That is, after going around once, you will be on the surface 
on the other side of the arrow.

The recycle symbol that has all three arrows the same
is not a mobius loop.  You will return to your starting
point after once around, and you will never get to the
other side.
-- 
-----------------------------------------------------------------
Sid Van den Heede		Van den Heede Computing
sid@vdhc.on.ca			56 Margaret Ave South
Phone/FAX +1 519 746 0576	Waterloo, Ontario, Canada N2J 2C9