Can someone please explain this optical illusion.

Narse

Moderator<br>Computer Help
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Mar 14, 2000
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The upright wood on the left hand side does not actually touch the upright wood on the right hand side. Its cut to look like it does from that angle.
 

Ns1

No Lifer
Jun 17, 2001
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Originally posted by: Narse
The upright wood on the left hand side does not actually touch the upright wood on the right hand side. Its cut to look like it does from that angle.

that's what I thought.

they had a few exhibits at MOCA that did the same thing.
 

destrekor

Lifer
Nov 18, 2005
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Originally posted by: Narse
The upright wood on the left hand side does not actually touch the upright wood on the right hand side. Its cut to look like it does from that angle.

that's my take. there is actually a very large gap, but due to this specific perspective, they appear to be conjoined.
 

TuxDave

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Oct 8, 2002
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Based on the shadows, I would say that the segment in the middle is fractured into two parts, one attached to each column. When looked at this specific perspective the two fractured segements line up and look like they're 1 piece.
 

Narse

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Mar 14, 2000
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Originally posted by: Ns1
Originally posted by: Narse
The upright wood on the left hand side does not actually touch the upright wood on the right hand side. Its cut to look like it does from that angle.

that's what I thought.

they had a few exhibits at MOCA that did the same thing.

The one I remember is the triangle.
 

Kelemvor

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May 23, 2002
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Originally posted by: TuxDave
Based on the shadows, I would say that the segment in the middle is fractured into two parts, one attached to each column. When looked at this specific perspective the two fractured segments line up and look like they're 1 piece.

That's my take as well.

It's basically a square with the two vertical posts and the top and bottom horizontal post. It's the middle piece that is what's not actually the way it looks in the picture. But like everyone else, it's all in perspective.
 

brikis98

Diamond Member
Jul 5, 2005
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i'm almost positive it's not photoshop, just a cleverly made shape that looks impossible ONLY from that perspective. from another angle, you can see exactly how it's fooling your eyes... i'm pretty sure the explanatory image is online somewhere, but it'll be tough to find....
 

brikis98

Diamond Member
Jul 5, 2005
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here are a few more from the same series, but the pics from the other angles (which show how the illusion is done) are missing...
 

lozina

Lifer
Sep 10, 2001
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yeah you guys are right about it not actually connecting and the shadows give it away.

look at the shadows on the paper. look to the right of the bottom of the post on the left side. you will see a feint shadow of a piece that juts out and ends at a tapered point, not connecting to anything. this matches the shape of the piece above that juts out and ends in a mitered cut to make it look like its joined to the other post from this perspective

then on the right you see a more pronounced but stubby shadow sticking out, of that shorter piece jutting out.
 

OdiN

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Mar 1, 2000
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Originally posted by: Kelemvor
Originally posted by: TuxDave
Based on the shadows, I would say that the segment in the middle is fractured into two parts, one attached to each column. When looked at this specific perspective the two fractured segments line up and look like they're 1 piece.

That's my take as well.

It's basically a square with the two vertical posts and the top and bottom horizontal post. It's the middle piece that is what's not actually the way it looks in the picture. But like everyone else, it's all in perspective.

There is a "square" which is just how it looks in the pic.

Two upright pieces.

The two pieces which connect those two uprights are real. So it's a square.

The piece which comes out and points toward the watch does connect in with the upright piece closest to the camera. It does not touch the second upright piece, but from that angle it looks like it does.

The other piece in the far upright along the bottom is just sticking out - nothing on the other side.
 

Syringer

Lifer
Aug 2, 2001
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There's a quicktime mov of the structure that makes it clear what's going on..let me try to dig it up.