Gino wrote on Tue, 24 Jul 2007 19:21:23 +0100:
G> <> wrote in message
G> news:...
??>> Hi,
??>>
??>> Those of you that are interested in calibrating your
??>> monitors and printers may be amused by this recent
??>> Astronomy Picture of the Day:
??>>
??>>
http://antwrp.gsfc.nasa.gov/apod/ap070717.html
??>>
It's hard to believe but the two squares really are the same
even if the illusion seems to persist when they are connected. I
had to turn my head sideways to convince myself!
James Silverton
Potomac, Maryland
E-mail, with obvious alterations:
not.jim.silverton.at.verizon.not