All we have here is a red square turning on a black and white spoked wheel, but we find it mesmerising and the square looks all irregular.
"There is an ethereal, otherworldly feeling to this photograph, as this little island in the middle of Tumuch Lake in northern British Columbia appears as if it's floating in the clouds," says Shane Kalyn, who submitted this photo to the National Geographic Traveller Photo Contest. "To bring us back to Earth, a fish has left a ripple in the water on the left-hand side of the shot. The scene was amazing to witness, let alone be lucky enough to photograph—totally the right place at the right time." Via Tumuch Lake Picture
This illusion will make your eyes go funny. But it is definitely worth the trouble. Just stare at the beating heart at the center of the grid. Count 30 beats then look at the back of your hand for a few seconds. Wow!
Less an illusion, more a cool video with great artistic technique.
I saw this illusion on the internet and found it immediately striking. The patterns were moving all over the place really strongly. I have been looking at this type of illusion for many years and have even produced some myself, and I have noticed that they are not always as striking to everybody, some get it some don't. Also they are not always the same to me, one day they are strong the next not so much. I must do a Spy Blog about it one day.
Anyway I do not know who designed this one, so if you do let me know so I can give credit where credit is due. - Spyman
If both cars leave at the same time and travel at exactly the same speed, which will get to its respective chequered flag first? You guessed it, they both would arrive at the same time as both tracks are equal length.
This three handed automaton is made soley from wood. It was manufactured by Peirs Heldorf and exhibited in the Pers Mechanical Cabinet room in Sweden. The articles are all inspired by Christopher Polhem, an 18th century inventor. How it moves the ball is anyone's guess!
This picture is by the Hungarian artist István Orosz. It's of a French ambassador to England in 1530, his name is Jean de Dinteville. You might recognise Jean from the Holbein painting 'The Ambassadors' that we described on the Spy Blog recently.
Here are a couple of great cutting or chopping boards with a 3D pattern that plays with the eyes. The boards were made by Steve Carey and you can see how he made them over at My Grandfathers Lathe.
Can you see which way the Optical Spy Wind Turbine is turning?
The top seems to be turn the opposite way to the bottom! If you don't see this straight away keep looking at the bottom it will eventually come. The more persistent of you will actually be able to see the top going one way and the bottom going the other way both at the same time, that's not easy. Congratulations if you can do it, you truly are an Optical Spy! Let me know how you got on.
Look at the deck of the bridge and it is straight and true. As soon as the Sun starts setting it looks like the deck starts distorting. When we stop the animation the deck appears to be bending upwards. Once the the Sun sets we are back to normal. (This is a Flash animation and may not work on all devices)
Here is our latest upside down illusion. It's of Phil Plait. Phil is an astronomer, author, skeptic, blogger, and lecturer. He is currently working on a TV project and for a time was President of the James Randi Educational Foundation. Catch Phil over on facebook. You can click on Phil's face to reveal the illusion.
Thanks to Phil for posting our illusion of him on his blog Bad Astronomy and for explaining the phenomena that is the Margaret Thatcher Illusion. He is not only a good sport he is a very clever man.
A piece of the historic Covent Garden market appears to have broken free of its stone base, with its top half levitating in the air, in the latest installation by London designer Alex Chinneck.
Take My Lightning but Don't Steal My Thunder by Alex Chinneck is a precise replica of a section of the 184-year-old market building in London's Covent Garden that has been made to look as if its upper portion has broken away from its stone base to float in mid air. Via deezen
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