When did humans first discover UFOs?

When did humans first discover UFOs? Some scholars believe that it can be traced back to 65438+70s. 1878 65438+ 10 In October, Martin, a farmer from Texas, was working in the field when he suddenly saw a round object flying in the air. At that time, there were 150 newspapers in the United States scrambling to report Martin's discovery, which was the first time in human history to report "UFO" in newspapers. The English word for UFO is UFO, which is abbreviated as UFO. Since then, UFOs have often pointed out a strange luminous flying object near the sky or the surface of the earth. Its performance, aerodynamic characteristics and some special details are different from any type of aircraft or missiles known at present, or it cannot be recognized as an ordinary object (such as balloons, stars, birds, etc.). Some people think that the appearance of UFO belongs to the natural phenomenon on the earth; Some people think it may be a spaceship from outer space. Because the appearance of UFOs is irregular and fleeting, and there are many false descriptions, even high-level scientists can't explain all UFO reports. During World War II, some British and American air force pilots claimed to have found round luminous bodies many times over the Pacific Ocean and the Atlantic Ocean, calling them "fighter planes". According to their account, these "fighters" have superb flying skills. Sometimes they can fly around the pilot's plane and pass by. Sometimes you can chase the plane and leave quickly. At first, they mistakenly thought that these "nonsense fighters" were the new weapons of German fascism, but later they found that they were invincible. On June 24th, 1947, US Federal Police Commissioner kenyon Arnold flew a rescue mission to find the wrecked C-46 transport plane. At about 15, he flew near Mount Lenny in Washington. Just as the plane climbed to the height of 3500 meters to search for the trace of the wrecked plane, suddenly Arnold found a flash next to the rope! He immediately made a 180 degree turn in the air to find out where the flash came from. Arnold is an experienced pilot. His eyes followed the light source and found nine shiny objects arranged in a trapezoidal shape, flying from north to south in front of his plane and winding through the mountains. "Every flying object jumps forward, just like a plate floating on the water" and "it is estimated that their radius is about 15 meters", he told People afterwards. This incident caused a sensation in the United States and was widely reported by the news media. Arnold also measured the ground background (mountain peak) and calculated that the flying speed of the luminous body was not less than 2700 kilometers per hour. This was incredibly super-high speed at that time, because supersonic aircraft had not been invented in the world at that time. When the newspaper published the above news, the reporter used the word "flying saucer". The US Army Aviation Department paid close attention to this matter and conducted a long-term investigation. They suspected that it was the secret weapon of the Soviet Union, which was during the Cold War between the United States and the former Soviet Union. However, the aviation industry thought that Soviet technology would not be so advanced, and then suspected that it might be Americans' own things. Because the US Navy launched an XF5- 1 project more than ten years ago to develop the most secret weapon "flying cake" at that time, which looked like a flying saucer. It has a pair of 1600 horsepower engines. When it "floats" in the air, its maximum speed is 680 kilometers per hour. Later, somehow, the navy canceled the project. Of course, ordinary people can't know the truth about such military secrets involving national security. Just as UFO became a mystery of social concern, American aviation engineering circles became more and more interested in the shape, structure and aerodynamic performance of UFO. 1953, Lockheed Aircraft Company of the United States put forward a design patent for a dish-shaped biconvex aircraft, which looks like a flying cake. According to the patent report, the advantage of this aircraft lies in its high flight speed and vertical take-off and landing capability; The shape of the plane makes the structure more firm, and the whole machine remains stable when taking off and landing vertically; Because the contour curve is smooth, it has more advantages in aerodynamics. Did Lockheed Aircraft Company build flying saucers? The researchers found no direct evidence. Almost at the same time, the famous British Ai Wu Road Company is also developing UFOs. They cooperated with the Canadian government to set up a factory in the suburb of Toronto, and put forward a circular airfoil design. As a result, the design was not accepted by the Canadian side, and the cooperation finally fell through. Later, the US Air Force took a fancy to this design, and formally signed a contract with the company at 1954, and put forward the top secret weapon system plan code-named "606A". According to informed sources, this flying saucer-shaped aircraft has a diameter of 30 feet (9. 1 m) and a top speed of 1600 miles (2,574 kilometers). The military abandoned the plan in 196 1 because the plane was unstable, which is always the biggest shortcoming. Although "UFO" and "UFO" are not the same concept, the scope of UFO is wider. But since then, the word UFO has often been regarded as a synonym for UFO, which has become popular all over the world. Various reports on UFOs have been handed over to police stations, air force departments, news agencies and scientists' offices. As high as 1968, the number of UFO reports collected in the United States alone reached 126 18.