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Author Topic: Optical Illusion.  (Read 19249 times)

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Re: Optical Illusion.
« Reply #10 on: July 17, 2018, 12:13:41 PM »
These things always mess with my head!

Offline Tweakie.CNC

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Re: Optical Illusion.
« Reply #11 on: April 17, 2023, 04:01:20 AM »
Another illustration on the same theme where the squares marked X are exactly the same shade of grey.

Tweakie.

PEACE
Re: Optical Illusion.
« Reply #12 on: May 30, 2023, 04:19:58 PM »
Still amazes me every time I pass it on.

Thanks again, Tweakie,
Russ