ML Archiv: [OM] Re: OT - Off-topic but at least Light related (and cool)

Subject:	[OM] Re: OT - Off-topic but at least Light related (and cool)
From:	"Michael R. Collins" <michael789@xxxxxxxxxxxx>
Date:	Sun, 25 Jul 2004 10:18:03 -0400

>http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html
>
>Tom

Next time you're sitting through a tedious PowerPoint presentation, 
ask your neighbour how the projector is able to put "black light" 
onto the white screen, to form black-on-white lettering :-) .

Michael

-- 
Michael R. Collins  ...  Michael.Collins@xxxxxxxxxxxxxxx
Toronto, Ontario, Canada

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