Astrophysicists responsible for analyzing potential extraterrestrial signals and designing humanity sends messages into space have come to the conclusion that we need to develop improved protocols to contact anyone beyond the Earth. Since 1974 we have sent any messages to extraterrestrial civilizations, but may have been too complex to that can be understood. The protocol METI (Messaging to Extraterrestrial Intelligence) could be the solution to this problem.
Humanity has developed several programs for potential contact with extraterrestrial intelligence. Perhaps the most famous projects are the gold discs that are on board the Voyager probes, known as "Sound of Earth" or "Sounds of Earth", gramophone records in which are some tens of sounds and images over characteristics of our planet, and radio broadcasts messages through the radio telescope at Arecibo, Puerto Rico, since 1974.
These projects are designed by brilliant scientists, but some of his colleagues believe they can be too complex and cryptic as to aliens who receive them can understand the message. Can anyone imagine that ET may not even have anything like the sense of hearing-building a gramophone to play and then play the song of a whale on earth? Of these difficulties are talking about.
But a trio of renowned astrophysicists from the United States and France, Dimitra Atri, Julia seagrass and Jacob Haqq-Misra-they hope to change this situation, putting in place a simple and understandable protocol, which can be used as basis for the exchange of messages with possible extraterrestrial civilizations. The protocol, called METI (Messaging to Extraterrestrial Intelligence) takes into account various factors, including how they are encoded signal containing the message, the length of it, and most importantly their content.
METI, as explained by astronomer at the University of Kansas, Dimitra Atri, provides specific wavelengths used for transmission: 1.42 GHz and 4.46 GHz, which are commonly found in natural electromagnetic emissions, the first, for example, corresponds to the natural resonance frequency of hydrogen-and would be simpler to grasp extraterrestrial races that have only a "modest technical skills." We also recommend establishing a sort of "light transmission" dedicated to transmitting messages to a regular schedule.
artificial intelligence
Like much of the community of astronomers, these three scientists agree with Seth Shostak, an astronomer at SETI, which also should be changed to current approaches that include the search for intelligent machines. If the ET technology is similar to ours, at some point in their development machines built advanced enough to enable them to evolve on their own, possibly surviving the species that created them. These machines could be there outside, and, after discussing the desirability of being detected by them, we need a proper protocol of understanding with an artificial intelligence.
But the main criticism that Atri and colleagues make the systems implemented to date is that they are too anthropocentric: hardly a creature of nine tips to live in the Gliese system could understand the human nuances that have terrestrial images. Even with the technical skill and expertise required to decode and interpret a collection of bits as an image, can hardly capture the subtlety that has a photograph showing a wolf and a lamb that is intended to represent good and evil.
"We know very little about the nature of extraterrestrial civilizations. If there is, it is likely that we can increase the likelihood of successfully communicating with them if we use a message that the recipient can understand," say the authors of the paper. We propose to perform a global test of the new protocol METI to determine if all cultures on Earth can understand. The idea is not bad, because if we ourselves have difficulty understanding what we are saying, hardly anybody made by other world understand and respond to the message. "An effective message should be directed to the aliens, at least, be understandable to all humans.
Using the protocol METI in local tests allow us to improve and develop the potential of our messages, "they add.
is clear that the chances of finding intelligent life somewhere in the universe have increased recently. It has long been speculated that there are many star systems like our own, but in recent years have seen really are there, and every week we discover a new exoplanet. Not a bad idea to start reviewing how we can communicate with ET: every day we are closer to finding it. (ABC)
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