Computable Minds
Blog of popular science about the more exiting branches of computer science.
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551

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15

Posted on: Feb, 25th 2013
RGB additive mixture

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.

Deep in "Why RGB?"

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303

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13

Posted on: May, 14th 2012
Alan Turing
In an epoch in that only were a few mechanic calculators, Alan Turing, was able to define the working, the limits and the possibilities of the computers. He not only was ahead to his epoch, but also to the actual and if had not been suicided, probably he would invented something that would convert the computers in something obsolete. Read the rest of "Alan Turing: Biography"

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174

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4

Posted on: Feb, 21st 2012
Swarm robots, Kilobot
The previous post was about robots with body inspired by animals, so that in this I'm going to talk about robots with intelligence inspired in the nature. This are a lot of more interesting, because its programming, unlike to the robots of the prior post, is more related with the artificial intelligence than with the physics. Read more of "Robots with intelligence inspired by animals"

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665

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25

Posted on: Dec, 19th 2011
Bird robot
There are a lot of robots that simulate the behavior and imitate the form, structure and movements of some animals. The engineers copy them because they know that the evolution had have millions of years to get solutions that gives the maximum performance with the minimum energy expenditure, so reproduce the nature allow us resolve problems that in otherwise hardly we could resolve. Don't left of read the rest of "Robots with body inspired by animals"

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446

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12

Posted on: Nov, 6th 2011
grave with a computer
The past month died three great geniuses that had made that the computing be as it is today. I'm referring to John MacCarthy, Dennis Ritchie and Steve Jobs. Probably you only know who is the last, which is the only one that has had media coverage. However is the less important, because if the other two had not existed, Steve Jobs perhaps wouldn't have achieved anything. Continue discovering "Great personalities of the computing deceased recently"

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180

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9

Posted on: Sep, 3rd 2011
Helmet to rea the mind
In the last years has been developed several helmets that allow read the brain, and the software responsible of make a determinate action depending on the thoughts of the user. This is, obviously, a very practical utility for a lot of people disabled and for the vaguest. Would you like to know how works this kind of technology? Finish reading "How works the user interfaces that read the mind?"

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906

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20

Posted on: May, 29th 2011
Kempelen machine reconstruction
Over two hundred years ago, in 1779, Christian Kartzenstein did 5 whistles that made blew the vowels artificially. Few years after, in 1791, Wolfgang von Kemplelen presented his "Acoustic-Mechanical Speech Machine" that we could consider the first voice synthesizer because it could produce isolated sounds and some sound combinations. Show more of "The first voice synthesizer"

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677

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31

Posted on: May, 22nd 2011
Virtual singer Miku Hatsume
The voice synthesizers are those programs as Loquendo, which provide of human voice to the machine. Although the majority of them have a voice very robotic, without intonation and feelings, but we can understand it. Here you see roughly how is imitated the human voice in a computer and because is so difficult achieve a voice equal to the human one. Don't stop reading the rest of "How works the voice synthesizers?"

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248

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Posted on: May, 15th 2011
Robot in the uncanny valley
The uncanny valley, is a theory of the japanes expert in robotics Masahiro Mori that says that the emotional response of a human to a humanoid robot, will be empathic and positive as much more it's the resemblance to a human, but will arrive a point before that the similarity and the movements of the robot be totally human, in that the response will be of aversion. Overcomed this valley, when the robot is indistinguishable from a human, the response becomes so empathic as to any other human. Finish reading "Explanations of the uncanny valley"

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153

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Posted on: May, 5th 2011
Radio-telescope
The distributed computing consist in the use of several personal computers to resolve, in less time, a problem for that we needed several years of computation with only one computer. This kind of computation usually use the processors of the users that voluntarily give their CPU cicles and GPU when they aren't using their computer, constituting a economic way of do an investigation when a supercomputer is not available. Learn more about "Distributed computing projects"

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111

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Posted on: Apr, 13th 2011
Signal warning of radiactivity
The processors aren't inmune to the radiactivity. This it produces soft errors, that are errors in the signals of its circuits, produced by the noise that generates the radiation on it. The consequences of the radiation over the machines aren't so devastating as over the human, because in the worst case we can reboot the machine, but the things that could do the machines affected by radiation to the humans, it could be dangerous. Don't stop reading the rest of "The machines neither are inmune to the radiactivity"
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