On 2007-10-13, Roy Lanek <[EMAIL PROTECTED]> wrote:
> Well, "pantographs" recall--for me at least--enough of, if not a
> lot of ... *space*: were you not suggesting the roomy shifting of
> a parallelogram?

It's a mechanical device for changing the size of a drawing or so 
by moving one pointer on a source image and another with a pencil 
on a target paper. Obviously, especially if the linkages are
a bit worn down, it's rather cumbersome to point to a specific point 
in the target by moving just the source pointer. But this is the 
operation of the mouse.

http://en.wikipedia.org/wiki/Image:Pantograph.jpg

-- 
Tuomo

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