[Autistic] OT: optical illusions

[sparkes]

a new blog posting optical illusions I thought a few people might be
interested in.  I wish there was something like this a few years ago
when I was attempting to explain this type of stuff to 17 year olds.

http://mightyillusions.blogspot.com/

sparkes

-- 

| |O| | Stephen Parkes aka sparkes blog http://sp.arkes.co.uk   / / / /
| | |O| Geek Gear http://nerd.ws Free Software http://zx-81.com/ / / / 
|O|O|O| Autistic GNU/Linux User Group http://autisticlug.org  / / / /  
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