How does this work?

Cardinal Sin · Post by **Cardinal Sin** » Tue Mar 13, 2007 11:26 pm

A and B are the same colour!

mjd · Post by **mjd** » Tue Mar 13, 2007 11:32 pm

the letters are but the squares arent?

Cardinal Sin · Post by **Cardinal Sin** » Tue Mar 13, 2007 11:47 pm

The squares are the same colour. If you use MS Paint or something similar, you can see this.

itsme · Post by **itsme** » Wed Mar 14, 2007 7:01 am

Istenem · Post by **Istenem** » Wed Mar 14, 2007 9:38 am

i like it.

CrosbyRules · Post by **CrosbyRules** » Wed Mar 14, 2007 10:06 am

Think it's because A is surrounded by light squares and the white outside, whereas B is surrounded by the dark squares, all messes with ya eye.

Matt Vinyl · Post by **Matt Vinyl** » Wed Mar 14, 2007 11:05 am

Seen this before, I remember a site with loads of these eye-fooling oddities...

Just proves how much our brown 'fills-in' what our eyes don't really see...

theoak · Post by **theoak** » Wed Mar 14, 2007 11:19 am

Saw this years back, one of the most impressive optical illusions I've seen, and yeah, it's to do with the surrounding squares and the perception of what the colour should be like in teh shadow

Cardinal Sin · Post by **Cardinal Sin** » Mon Apr 02, 2007 12:04 am

Right, here's another one:

Weyland · Post by **Weyland** » Mon Apr 02, 2007 12:45 am

Ah, I can never remember the exact answer to this one, but I think it has to do with the second pic actually taking up slightly more space than the previous one - it's most obvious on the blue triangle on the second, five squares from the left.

Also, if you do the maths:

Green == 7
Yellow == 8
Red == (5 * 2) / 2 == 5
Blue == (8 * 3) / 2 == 12

Total == 32

BUT

Entire triangle == (13 * 5) / 2 == 32.5

Matt Vinyl · Post by **Matt Vinyl** » Mon Apr 02, 2007 11:17 am

Heh, seen this one too, it seems to throw the mathematical calculation of 'area' right out the window.