Secret 150 years ago human beings trying to contact alien ideas (Photos).

<P> Key words: human alien ET UFO UFO </ P> <P> </ P> <P> <CENTER> </ CENTER> <P align=center> </ P> <P align = center .> In 1869, French inventor and poet Charles Claus (Charles Cros) had envisaged the use side of the parabolic mirror focuses light rays and fired at Mars or Venus. .</ P> <P align=center> <P> World Scientific reports [tech. /]: Beijing February 5, according to U.S. space network coverage, and other planets get in touch with the aspirations of intelligent life can be traced back 100 .years ago, far more than historical UFO (UFO) into a frenzy and the Search for Extraterrestrial Intelligence (SETI) movement. .</ P> <P> in the 19th century, some scientists would have to seriously consider how we can and might exist on Mars and Venus to get in touch. .Early proposals - made longer than the first time in 1974, sent to outside information as early as 150 years - are built on the basis of visual signals, in the decades after these proposals, the radio finally been invented. .</ P> <P> In fact, recalling the history of our search for extraterrestrial life will find, interplanetary communications to a large extent driven by the then available technology, such as a lamp, radio or laser. .NASA chief historian Steven Dick (Steven Dick), said: "You have to rely on the knowledge and skills that have mastered the move." </ P> <P> whether humans alone? </ P> <P> 2000 .years ago, the ancient Greeks will be on whether there is life on other planets heated discussion, but there is the idea of extraterrestrial life really "take off" is the Copernican heliocentric theory was founded after the revolution. .Dick said: "aware of all the planets revolve around stars after the operation, it is easy to produce such ideas - other Earth-like planets may be." Galileo, Kepler and other scientists have considered the habitability of the planet .this problem, but their study is very careful to avoid the church authorities in uncertainty. .Guoji Bu has written books on this issue, Dick said: "into the 17th century, this idea is in all sorts of people started to 'pluralistic world' discussion, but the controversy still exists." </ P> <P> to the ground .theory of life exists outside supporters, one of the most influential than Bernard LeBow Virginia Wheelock Tainei Li (Bernard le Bovier de Fontenelle), he had written the famous 1686 book "on the pluralistic world .dialogue. " .Despite a keen interest in the existence of aliens, but no records show how people have to lock or to contact extraterrestrials discussed until more than a century before we set foot on the search for extraterrestrial journey. .</ P> <P> Triangle burning wheat fields and canals </ P> <P> out of Paris by Alexander Science Center Florence Slough Forest - Celso (Florence Raulin-Cerceau) record attempt and .get in touch with extraterrestrial intelligent beings in the early attempts, such an attempt is now often called "Search for Extraterrestrial Intelligence." .Recently, Laurin - Celso with colleagues in the French magazine "Pour la Science" published an article: "Early in the 19th century, inventors have envisioned the use of 'sky telegraph' and the solar system planets may contact the residents." .like this in the early inventors, including the German mathematician Carl Friedrich Gauss (Carl Friedrich Gauss). .19th century, 20 years, he has referred to the use of their land surveying invention - Back spectrometer to the other planets reflect sunlight. .</ P> <P> In addition, he also proposed an imaginative proposal to cut the forest in Siberia, a huge triangle in the triangle area planted wheat. .Laurin - Celso wrote in an article: "With great size and color, objects on Earth can fireball into the moon or the line of sight, this geometric patterns can only be interpreted as an intentional .the building. "After 20 years, astronomers Joseph von Little Ruby (Joseph von Littrow) also proposed a similar idea, a diameter of 30 km to the ring canals dumping kerosene and lit at night, outside the use of such visual signals to tell .stars, we live on Earth. .</ P> <P> </ p>.