Computable Minds
Blog of popular science about the more exiting branches of computer science.
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3550

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24

Posted on: Aug, 27th 2010
Code and a processor
In this post I'm going to explain something quite basic, but a lot of people unknown or simply don't understand well.
I'm going to clarify why the algorithms (sequence of steps that has to realizy a computer to complete a determinate task), are execute more faster in hardware than in software. Don't miss the rest of "Any algorithm in hardware is faster than in software"

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9166

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33

Posted on: Jul, 20th 2010
The vitruvian Bender
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. Don't miss the rest of "The Futurama code: First part"

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256

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19

Posted on: Dec, 8th 2012
random
There are many people who believe that a machine isn't capable of generate random results and with this idea spend their savings betting in Internet on all kind of gambling waiting to find a pattern. In fact, the machine not only can generate random results, but also adjust them for that the prizes won are the needed for keep hooked the gambler and maximize the benefits of the casino. Finish reading "How a machine learns to harness a compulsive gambler?"

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408

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22

Posted on: Aug, 26th 2012
compress file
Have you ever tried to compress a video or picture in gzip, zip or rar and you have found that the file occupied more than the original? Do you want to know why? Enter into "Why some files can be compressed more than others?"

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640

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10

Posted on: Oct, 14th 2011
blurred image
Adobe has announced that the next version of Photoshop will incorporate a new algorithm to fix images with motion blur. How is possible correct this kind of blur? Deep in "Algorithm to correct motion blur"

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1509

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24

Posted on: Aug, 3rd 2011
JPG image very compressed
Surely that all of you know the image files ".JPG", and if you don't, you must know that your mobile, digital camera, web cam, tablet PC, etc., do photos in that format. Its use has proliferated so much because allow reduce the size of the image without compression 10 times, without we notice that the quality has been reduced, and this is achieved thanks to the application in the compression algorithm of the knowledge that we have of the eye. Read all about of "How the JPEG algorithm cheats the human eye"

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310

votes

25

Posted on: Feb, 15th 2011
RSA
The RSA is an encription algorithm of public key more used in the world. Its security increases exponentially with every bit that we add to the encription key, hence nobody have achieved break its security and maybe nobody do it never. If you want know how are posible the secure bank transactions over Internet, or how can be signed digitally e-mails and documents, besides of other things, follow reading. Show more of "RSA: the security of your money depends of it"

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986

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323

Posted on: Dec, 14th 2010
Robot con Kinect
In one of the posts where I explained the how Kinect works, I said that wouldn't be strange that it will be use to build robots. Now are emerging the first robotic machines that someday will rebel and will begin to kill humans. Here I talk about some of them. Continue discovering "Robots, Kinect and the SLAM problem"

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596

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17

Posted on: Dec, 10th 2010
Tron cover of 1982
The next week is the world release of TRON Legacy the adaptation of the old TRON, a cult film of the science fiction that launched Disney in July of 1982, being the first movie in the world that used animated computer graphics in a intensive way, in a epoch where begins to appear the first personal computers. Finish reading "TRON - The beginning of the computer graphics in the movies"

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480

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19

Posted on: Oct, 5th 2010
The travelling salesman is a problem computationally expensive to calculate. Its complexity is exponential and, therefore, is in the category of the problems that can't be solved in a polynomial time, in other words, it's as say that an actual computer can take a lot of millennia in get the solution to the problem. If we can get the result in less time will be useful to salesmen, transport agencies, postmen, distributors, infinity of fabrication process, DNA analysis and a lot of more situations. Don't left of read the rest of "The travelling salesman problem"