Is this corner: Concave or Convex? Tell us why.
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December 26th, 2010 | Category: 
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Convex, because of how the sun is shining on one side of the building while the other side in completely shaded.
Hmmmmmm, Paul, you’re half right. Look again.
I believe it is convex (corner pointed outward, right?) because there is a person leaning out of the left window.
you can also see a window sill thingy under the windows.
It’s actually both.
The optical illusion is best looked at this way:
Hold your hand over the top and look at the bottom, then hold you hand over the bottom and look at the top.
It’s fun to be fooled!
WHOA! that’s pretty cool.