It is always risky to run on a shopping mall escalator, but it is downright irresponsible not to be very cautious when using an escalator in the world of M.C.Escher.
Uncategorized
Real Penrose Triangle
The Penrose triangle (here dcorated with playing dices) is a very traditional form of optical illusion which seemed very difficult to reproduce in real life and in 3D.
Up to we’ve seen these two impressive realisations:
YouTube link
M.C. Escher for real and in video
YouTube link
We have to admit that we all thought it was only an optical illusion up to this video demonstration.
Or should we follow the counter-explanation showing that this is a simple perspective trick:
Illusory rabbit or duck, now a 3D sculpture
Up to now, we had the pretty engraving from Joseph Jastrow in 1899 where a rabbit seems to forget its species to transform itself into a duck.
Here comes now the sculpture inspired by the painting and representing the same character always source of visual confusion.
A turntable to get more illusions
Illusions en gris mineur
How to slow cars with an optical illusion?
An anamorphosis is used to show something that is only recognizable from a certain location and in a certain angle. Most of them are classically hidden inside paintings. But a city decided to use one anamorphosis to make car drivers believe that there is a child playing on the road, forcing them to slow down… where children may play and be at risk from speeding cars.
It would have been even better in open air. But this one is already quite nice.
Source: Geekosystem.
Optical illusions are for grown-ups only
This is the conclusion of a paper published online November 12 in Developmental Science. Here, the researchers ofund that it seems that the brain circuits used to simplify the visual perception by using as much context as possible (and they are responsible for most of the optical illusions) are not set before at least the age of 10. Before that most children have difficulties perceiving what we adults describe as optical illusions.
For once, there is a game for grown-ups only, and it does not involve dirty tricks. Just tricks.
Source: ScienceNews.
Droste & Photoshop: How-to
I really love the Digital Photography School web site. They have plenty of excellent tutorials, tips and tricks for the digital photographer. I found there a specially intersting one to help us build a Droste-type optical illusion: Droste ‘Frame in a Frame’ Effect.
You will love it.
