Slanted illusion
(Wednesday, April 30th, 2008)

Straight lines are actually really parallels.
It’s your brain trying to convince you they’re not.
(Wednesday, April 30th, 2008)

Straight lines are actually really parallels.
It’s your brain trying to convince you they’re not.
(Saturday, April 26th, 2008)
“You’ve got to love those coins!” Do you believe that I could tell you so? Surely not. Even better, you can be surprised to learn that I found that in a web site about design and arts (Baekdal.com). And it is defintely a great design for something as old as coins.
The new UK coins have been designed to be elegantly assembled in a single pattern:

Source: Can Coins Look Sexy?
(Wednesday, April 23rd, 2008)

It took all the art of bbzippo, some Lego bricks and some Photoshop editing, too.
(Friday, April 18th, 2008)
If you go to the web site setup by Jatec-LLC, disappearing-car-door.com, you will see a revolutionary kind of sliding door for your car.
But is it real or fake?
(Saturday, April 12th, 2008)
Some people have been telling me: “You blog! That must take a lot of time and you must be there each and every day”.
Don’t worry, I may post something on Roumazeilles.net every day, but it does not mean that I am in front of the keyboard every day. Far from it. I am using one small advantage of WordPress (the software package supporting my web site). I can write posts and schedule them for future publication.
That way, I have no limit to my inspiration. For example, I have currently scheduled weekly posts about optical illusions for the coming 6 months, a full week of feline-related news (daily posts next week), a full week of daily videos titled “when XXXXX get bored” in a couple of months.
(Wednesday, April 9th, 2008)

Everything is moving if you stare at this optical illusion.
(Wednesday, March 26th, 2008)

You just have to turn your head 90° to fully change your perspective.
(Monday, March 17th, 2008)
This is a special gift to all readers from Ireland: You are continuously the country where visitors spend more time on this web site (more than 4 minute per visit) from all countries contributing more than 20 visits per month.

Special for St Patrick’s Day: If you stare at the image, the clover leaves will start moving.
(Saturday, March 8th, 2008)
Of course, you know about the impossible triangle (very classical optical illusion).

Do you know how to draw it? It is complicated indeed and most people will do some ugly sketch instead of a nice optical illusion. However, this is quite simple. It is all a matter of starting it right thanks to the help of: “How to Draw an Impossible Triangle“.
Copyright (C) 1999-2008 - Yves Roumazeilles (all rights reserved)
Latest update: 24-jun-08