Impossible Visual Illusions

Addresses new and interesting links to other sites (not listed on the Genii website) that merit attention.
Guest

Impossible Visual Illusions

Postby Guest » January 28th, 2003, 6:23 am


Guest

Re: Impossible Visual Illusions

Postby Guest » January 28th, 2003, 6:54 am

Wow! That was quite amazing. Thanks Kjellstrom for the link.

George Olson
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Re: Impossible Visual Illusions

Postby George Olson » January 28th, 2003, 8:36 am

I forwarded a copy to Jerry Andrus. As most of you know he's deep into "illusions!"

As an aside, I won't believe what my eyes are showing me in the videos.

Quite disconcerting, but fascinating.

GO

Guest

Re: Impossible Visual Illusions

Postby Guest » January 28th, 2003, 8:52 am

Yes, this was a very impressing illusions.
I wonder if its possible to do this in real life with some kind of prop?
That may be the next "hit" in the magic world.

sleightly
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Re: Impossible Visual Illusions

Postby sleightly » January 28th, 2003, 10:46 am

Mark Setteducati's book (with Anne Benkovitz), The Magic Show includes at least one example of two of the illusions presented on the website (equal color values appear different when placed in different context...)

ajp

timbrown
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Re: Impossible Visual Illusions

Postby timbrown » January 29th, 2003, 6:25 am

I found an incredible optical illusion that simply has to be seen to be believed. It requires considerable preparation (and a computer with printer) but it is well worth the effort.

Go to this site and give it a try:

http://www.grand-illusions.com/dragon.htm

I made on of these little dragons and it rests on the top of my computer desk in my office. I still can't believe how much it fools my eye!

Tim Brown

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Steve Bryant
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Re: Impossible Visual Illusions

Postby Steve Bryant » January 29th, 2003, 7:30 pm

Thanks! I just built it. I had no idea what the effect would be until I constructed it. Very cool.

Chris Aguilar
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Re: Impossible Visual Illusions

Postby Chris Aguilar » January 30th, 2003, 8:11 pm

The little dragon that you build is amazing!

Same concept that disney uses in their "Haunted Mansion".

sleightly
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Re: Impossible Visual Illusions

Postby sleightly » January 31st, 2003, 5:35 am

I believe JonR posted about this elsewhere, but if you want to see more of this ilk (including more Jerry Andrus material and "dragon-like" perspective material), check out Al Seckel's The Great Book of Optical Illusions...

Highly recommended!

Andrew

Amazon: The Great Book of Optical Illusions

Guest

Re: Impossible Visual Illusions

Postby Guest » January 31st, 2003, 8:57 am

I'm not sure if the directions about a mountain fold and valley fold are accurate. By mountain fold the seem to mean, fold down. Is this true?
Thanks

timbrown
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Re: Impossible Visual Illusions

Postby timbrown » January 31st, 2003, 10:52 am

A mountain fold looks like a peak (^) while a valley fold looks like a valley (V). This is standard origami terminology. You can find a wealth of origami basics with a simple web search using your favorite search engine.

Try this Paper Dragon - you won't be sorry!

Thanks to Jerry Andrus, who inspired the creation of this illusion (which was presented during a gathering of Martin Gardner fanatics)

Tim Brown :rolleyes:

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Steve Bryant
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Re: Impossible Visual Illusions

Postby Steve Bryant » January 31st, 2003, 12:22 pm

merlou, believe what the directions are telling you about mountain and valley folds. They are counter-intuitive and you will seem to be building the dragon's head inside out. But that is correct, and the results are amazing.

Guest

Re: Impossible Visual Illusions

Postby Guest » January 31st, 2003, 2:30 pm

This is SO worth doing!

Guest

Re: Impossible Visual Illusions

Postby Guest » February 1st, 2003, 3:39 pm

Originally posted by Ralph Bonheim:
This is SO worth doing!
Ditto.
The first dragon I made was "inside out" :confused:

Second one, spot on. :D

Thanks for the links on this post. Very interesting indeed.

Guest

Re: Impossible Visual Illusions

Postby Guest » February 2nd, 2003, 6:31 am

Thanks guys

Guest

Re: Impossible Visual Illusions

Postby Guest » February 10th, 2003, 3:09 pm

I regret to announce that my cat ate my dragon this morning. Back to square one...


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