Blog of popular science about the more exiting branches of computer science.
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Posted on: Apr, 29th 2012
A photo has been converted in the standard of reference in the computer sciences. Over this have been applied, from the years 70, a big quantity of algorithms of graphic computing, compression and artificial intelligence. Fill your mind with "The photo of Lena Söderberg"
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Posted on: Jul, 20th 2010
Not a lot of time ago has been resumed one of my favourite series, Futurama, realized by Matt Groenning, the creator of the Simpson.
Between the scriptwriters of Futurama are involved several scientist that provides continuously references to the science. In this post I'm going to explain the cryptography used in the series for code some alien inscriptions. Continue reading "The Futurama code: First part"
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9055
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Posted on: Sep, 17th 2010
Formerly, when still the CRT (Cathodic Ray Tube) monitors were in use, emerge the myth of cactus that absorb the monitor radiations. This swindle probably was thought by some illuminated herbalist that saw the bulky filters antiradiaton that was putting in front of the screen. Surely though that he can win a lot of money selling cactus as substitute of this filters, because a cactus is a lot of more nice and friendly than an authentic filter antiradiation. Follow reading if you want to know why this belief is absurd. Fill your mind with "The myth of the antiradiation cactus"
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Posted on: Jul, 30th 2010
At the prior post, I did an explanation about how break the encryption of the alien alphabet 1, used subliminally in several episodes of Futurama. Today I'm going to do the same with the alien alphabet 2. Although you don't see Futurama, if you want know some mysteries of the cryptography, don't let of read this post. Finish reading "The Futurama code: Second part"
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Posted on: Jun, 27th 2011
Today I'm going to dedicate the post to explain some basic concepts about the files that the 99% of the people that use a computer don't understand it very well.
Some users know that the last letters that there are at the end of a file (the extension), identifies the type of file, so, for instance, an archive ended in .JPG is a type of file of image and another ended in .GIF is a different image format with other characteristics. This, is true for most cases, but causes confusion in the cases where the extension isn't of a concrete format, unless of a format container. Don't miss the rest of "Differences between extension and format in a file"
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Posted on: May, 6th 2012
A lot of people have seen this object without knowing it in animation films, videogames and screensavers, because also is an object that appears as basic in almost all the tools of 3D modeling (3D Studio Max, POV-Ray, AutoCAD, etc). Even there are functions to create this teapot in a lot of libraries of graphic programming, this is due to that, like the Lena's photo, this 3D model of a teapot, has been converted in the standard of reference in a lot of scientific papers of 3D graphics. Follow discovering "The Newell's teapot"
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Posted on: Sep, 28th 2010
In the prior post I didn't explain some interesting facts about the submarine cables. ¿How is possible its installation on the oceanic ridges? ¿From where comes the electrical source of the repeaters? ¿What occurs when the deep doesn't allow bury the cable? All these questions and a lot of more will be reveal in this post. Continue discovering "The impressive submarine cables (second part)"
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Posted on: Feb, 25th 2013
The RGB color model is a great invention which allows that with the mixture of different intensities of red, green and blue, any monitor or television can reproduce the colors of the reality. But ... how is it achieve? and why the colors of the model aren't others? The answer is in our eyes.
The retina is the part of the eye where we capture the light, and this is made thanks to a kind of modified neurons for detect photons: the rods and the cones.
Read more of "Why RGB?"visits
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Posted on: Dec, 21st 2010
When we shutdown the computer, the operating system send a message to all the applications to end them. If some don't finalize, in the case of Windows XP, appears a window with a progress bar that advance slowly and makes us wait with the message "Ending Program". A better option, is press in "End Now", because the timeout that shows, simply is for leave the time pass, not for do something. Read the rest of the post if you want to know how shutdown faster your computer. Enter into "Shutting down Windows and the halting problem"
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Posted on: Sep, 24th 2010
Internet allows that any computer cans communicate with any other computer independently of the distance. This is not magic but is thanks to large cables buried in the seabed that ply the seas and oceans around the world. ¿Do you want know the technology of these cables? Read more of "The impressive submarine cables (first part)"
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Posted on: Oct, 1st 2010
The screensavers, theoretically, serve to protect the monitors from the deterioration of the quality of the screen produced when you leave an image fixed during a lot of time. With the abandon of the CRT monitors in favor of the TFT-LCD, the screensavers leave of be useful, but a lot of people follow believing that still serve to save the screen. Follow reading "Screensavers. Save they my screen?"