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NZ Herald cartoon and optical illusion – can anyone explain how it works?
(
nzherald.co.nz
)
2 points
by
69_years_and
on Nov 25, 2014
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1 comment
gus_massa
on Nov 26, 2014
[–]
Wikipedia has an article about it, but the explanation is not very clear:
http://en.wikipedia.org/wiki/Grid_illusion#Scintillating_gri...
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