Mike Williams <nos### [at] econymdemoncouk> wrote:
> Escher erroneously drew the moon's reflection as distinctly oval.
>
> http://www.maths.qmul.ac.uk/~ade/sldimages/escher.ripple.gif

I think that image has been squashed. Looks fine here:

http://www.fiz.huji.ac.il/~shaviv/students/77304/Escher.jpg

Bill

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