Best locations for wallpapers

You find them anywhere and everywhere, but it’s not always worth the visit. To find a beautiful wallpaper for your computer (even more if it has seevral screens), you need to find reliable sources of nice wallpapers. I wrote down a few of the best ones here: The wallpaper section of National Geographic Digital Blasphemy… Read More

Zoom into the Mandelbrot set

The fashion of drawing fractals is a memory of the past (it was probably linked to the first appearance of computers able to collate the computing power for the needed calculations and the display capacity for complex images). But the pleasure is all mine to find this HD video which sends us into a Mandelbrot… Read More

Find your free wallpapers with Google

If you’re like most people, you’d like to have pretty wallpaper on your desktop background. You can always go to wallpaper web sites but most of them are choke-full of ads and they always provide the same usual set. How about getting new ones? Use Google. Now, Google is able to search images by size.… Read More

The space shuttle as wallpaper

The larger our displays, the tougher it gets to find adequate wallpapers. NASA (through a sélection from Chamorro) comes to our resscue with these exceptionnaly beautiful high-resolution images. Our computer will have a hig-technology look even in 4000×3000 pixels. You can notice that these images being free of copyright will allow to produce impressive posters… Read More

An SLR camera + some software = three videos

Fabian Tischer is obviously gifted to create small videos from visual effects supposed to be simple (but actually quite tough to master) in order to offer us some cool movies: Berlin TV tower – lift off from Fabian Tischer on Vimeo. Insider footage showing NASA’s strange theft of famous Berlin landmark. little airport from Fabian… Read More

Planetary pictures and wallpapers

I consider that the most useful and often the most interesting wallpapers for your computer desktop are images that are relatively feature-less. A picture full of little details continuously grabbing your attention is a major nuisance. It’s much better to have either a very smooth image or a photo containing a lot of continuous tones.… Read More

Stacey Whaley, fractals

Stacey Whaley is a painter using the most modern tools available and depending heavily on the mathematical principles of fractals (those graphical figures that tend to repeat themselves at different scales when you zoom in or zoom out). In most cases, when people follow this path, the result is quite predictable and there are a… Read More

Find your PC weaknesses

Isn’t it somewhat difficult to continuously check the status of security updates for the many software programs we have installed on our PCs, sometimes not even knowing it? Here comes Secunia PSI to help in this daunting task. It permanently observes the version of the programs on your PC and verifies if there is an… Read More

Surprise! You can find color in B&W photos

This is easy to reduce a color photo to a B&W image (any photo software or any B&W photocopier can do it). But the reverse operation seems difficult at best, impossible in most cases. However, a team of French scientists from the French INRIA (Guillaume Charpiat, Matthias Hofmann et Bernhard Schölkopf) presented recently an algorithm… Read More

Photoshop CS4 vs. The Gimp v2.6

Newsrooms are full of weird coincidences. For example, we just learned that  two products often presented as direct competition were launched this Fall. To my right, here is Adobe with its boxing champion, Photoshop, loaded up to version CS4. To my left, Linux and its community of free developpers pushing the challenger on the ring,… Read More