Category Archives: Illusions

Rock Optical Illusion

In this lovely Scottish rock specimen of Marine Agate (probably born in bubbles in basalts that were erupted some 400 million years ago during the closure of the Iapetus Ocean) it looks like we are looking through a window into … Continue reading

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The Attention Test

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What would Wittgenstein say about that dress?

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“What colour is that dress?” The question has been fascinating people all around the world, including Prof Barry C Smith of the University of London’s Institute of Philosophy. We all assume that we see what’s before our eyes, and if … Continue reading

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Circling Balls Optical Illusion

circling wheels optical illusion

I have got a feeling this optical illusion might just blow your mind. We have put three clusters of circling balls above, but can you tell me how many of the three are going in the same direction? If you … Continue reading

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Which Line is Longer?

optical spy box optical illusion

  The Optical Spy box is split into the top third and the bottom two thirds. So which line is longer, the diagonal splitting the top third A-B or the diagonal splitting the bottom two thirds B-C?

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Animated Impossible Triangle

Here is a great little animation made by our friends over at optical spy

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You wont believe this Optical Illusion!

rubicks cube optical illusion

This optical illusion by opticalspy.com is of the famous Rubics Cube. Can you spot the illusion? Well it is difficult to notice, but the middle squares on each side are actually all the same color. Wow! If you don’t believe it, click on the picture and … Continue reading

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Checker-board Optical Illusion

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Hat Trick

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Holbein’s Skull

The Ambassadors (1533) is a painting by Hans Holbein the Younger in the National Gallery, London. As well as being a double portrait, the painting contains a still life of several meticulously rendered objects, the meaning of which is the cause of much debate. It is also … Continue reading

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Cognitive Illusions

The two squares with the Optical Spy logo in are the same color! Click on the picture Illusion is a step away from reality and optical illusions are those that relate images we see to others that we visualize, perceive, or … Continue reading

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The Road Where Cars Roll Uphill

There is a road in Scotland where bicyclists have to pedal hard to ride downhill… but then coast uphill. Why?

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Mind Your Step

Mind your step is a street illusion at Sergels torg in Stockholm. It is created by photographer Erik Johansson and this video summarize the first three days. Hey, it was filmed in full-HD, so why not watch it in full … Continue reading

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Spinning Illusion

Only one of these disks is actually spinning, can you see which one? Click here to reveal answer

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Can you name the paintings and the artists?

redux

Can you name the paintings and the artists? – Click on the picture to reveal the answers.

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The McGurk effect

The McGurk effect is a compelling demonstration of how we all use visual speech information. The effect shows that we can’t help but integrate visual speech into what we ‘hear’.

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Le Blanc-Seing – Rene Magritte

Today we post a beautiful picture suggested to us by Alan Mason an artist and writer from Stony Stratford in Buckinghamshire, England. It is Rene Magritte‘s famous painting ‘Le Blanc-Seing’ (literal translation: “The Blank Signature”) which roughly translates as “free … Continue reading

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How to make an illusion ad

This new advertisement by Honda is brilliant. Take a look here. Now see how it was made. – Deskarati

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Hidden Faces

how many faces

There are seven hidden faces in the picture above, can you find them? Pop over to Optical Spy to see the answers – opticalspy

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A Portrait of Charles Darwin

Charles_Darwin

A stunning portrait of Charles Darwin by David Revoy that pays homage to Darwin’s contributions to evolutionary theory, created using different animal and plant species. Via opticalspy

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