Buy Used
Used - Very Good See details
Price: 3.28

or
 
   
Have one to sell? Sell yours here
Sorry, this item is not available in
Image not available for
Colour:
Image not available

 
Tell the Publisher!
Id like to read this book on Kindle

Don't have a Kindle? Get your Kindle here, or download a FREE Kindle Reading App.

Geometric Optical Illusions (Super Visions) [Paperback]

Al Seckel


Available from these sellers.


Formats

Amazon Price New from Used from
Library Binding --  
Paperback --  
Amazon.co.uk Trade-In Store
Did you know you can use your mobile to trade in your unwanted books for an Amazon.co.uk Gift Card to spend on the things you want? Visit the Books Trade-In Store for more details or check out the Trade-In Amazon Mobile App Guidelines on how to trade in using a smartphone. Learn more.

Book Description

4 Dec 2005 Super Visions
It defies logic! At least, that's what puzzle-doers will think as they work their way through this largest-ever compendium of geometric conundrums. When you look at these images - some classic, others never-before published - you'll have a hard time believing what the captions say about their size, shape, or other geometric aspect. For example, two tables appear radically different to the naked eye - but they're actually identical in size and shape. It's all a matter of perspective and perception. Each puzzle is eye-opening.

Product details


More About the Author

Discover books, learn about writers, and more.

Product Description

About the Author

Al Seckel is the author of "Super Visions: Ambiguous Optical Illusions" (1402718292) and "Super Visions: Action Optical Illusions" (1402718284).

Sell a Digital Version of This Book in the Kindle Store

If you are a publisher or author and hold the digital rights to a book, you can sell a digital version of it in our Kindle Store. Learn more

What Other Items Do Customers Buy After Viewing This Item?


Customer Reviews

There are no customer reviews yet on Amazon.co.uk.
5 star
4 star
3 star
2 star
1 star
Most Helpful Customer Reviews on Amazon.com (beta)
Amazon.com: 3.0 out of 5 stars  1 review
5 of 5 people found the following review helpful
3.0 out of 5 stars Pretty, but ultimately unsatisfying 30 Dec 2007
By Audio Slave - Published on Amazon.com
Format:Paperback
(Note, I originally gave this 3 stars but now would call it 2, although the system won't let me change that. See Edit note at the end.) The book contains about 90 or so optical illusions. The illusions are mainly along the lines of things that look curved when they are actually straight, things like look different sizes when they are a really the same size if you measure them, and similar. Many of these illusions will be like ones you've seen before if you are into this sort of thing, but there are some new variations I hadn't run across before.

The book is nicely illustrated and pretty to look at. However, it gets only an "average" rating for two reasons:
1. There's not a single word of explanation in the entire book as to *why* the illusion occurs and why the eye is fooled. According to the "about the author" page, the author is "the world's leading authority of visual and other types of sensory illusions". Given that, I would've hoped for at least a little bit of explanation or discussion of the illusions. Instead, you get just the photos, each accompanied by one or two sentences along the lines of "Does the one thing look larger than the other? Check your answer."

I went to the author's website (he is associated with Harvard and formerly associated with Caltech) in the hopes of more info. But that is mostly an extended resume for the author and list of his books, speaking engagements, etc. (Although there's a somewhat interesting section devoted to several Escher-like artists, with some movies of interviews of some of the artists.)

2. Many of the illusions are just very small variations on the exact same illusion, rather than being something new and different as I had hoped.

Overall, certainly not a worthless book and quite pretty. But probably a lot more interesting to someone who's never seen these types of illusions at all before (or to a child) than to any adult who has any previous familiarity with the topic.

Edit: Also, there is at least one of what appears to be an out and out mistake. One page shows what is supposed to be the "Wundt Illusion". It pictures two seemingly identical profile views of the drawing of a woman's head and torso, and asks "Does the figure on the left appear to be smaller than the figure on the right?". Well, the answer is "No, they appear to be the same size and they actually are the same size when measured." Not only that, but even if they appeared to be different this wouldn't be an example of what is normally called the "Wundt" illusion (I looked it up), which has to do with lines looking bowed when they are really straight.

Yikes, make that 2 errors so far. One page asks "Do all 3 squares appear to be the same size?" Well, the answer is "Yes, they do (and they are when measured) and they also aren't squares- they are clearly rectangles (both in perception and when measured."

For mistakes/ poor editing, I would call this a 2 instead of a 3 if I was able to change the # of stars.
Was this review helpful?   Let us know
ARRAY(0xabdc0f24)

Customer Discussions

This product's forum
Discussion Replies Latest Post
No discussions yet

Ask questions, Share opinions, Gain insight
Start a new discussion
Topic:
First post:
Prompts for sign-in
 

Search Customer Discussions
Search all Amazon discussions
   


Look for similar items by category


Feedback